Merge branch 'meilisearch:main' into fix-3037

2024-11-26 23:04:26 +01:00 · 2022-12-03 15:56:41 +08:00 · 2022-12-03 15:56:41 +08:00 · c63748723d
commit c63748723d
parent bf96b6df93 40339919ad
38 changed files with 1543 additions and 353 deletions
--- a/.github/workflows/coverage.yml
+++ b/.github/workflows/coverage.yml
@ -6,7 +6,7 @@ name: Execute code coverage

 jobs:
  nightly-coverage:
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - uses: actions-rs/toolchain@v1
--- a/.github/workflows/latest-git-tag.yml
+++ b/.github/workflows/latest-git-tag.yml
@ -0,0 +1,19 @@
+# Create or update a latest git tag when releasing a stable vesrsin of Meilisearch
+name: Update latest git tag
+on:
+  workflow_dispatch:
+  release:
+    types: [released]
+
+jobs:
+  update-latest-tag:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: rickstaa/action-create-tag@v1
+        with:
+          tag: "latest"
+          message: "Latest stable release of Meilisearch"
+          # Move the tag if `latest` already exists
+          force_push_tag: true
+          github_token: ${{ secrets.MEILI_BOT_GH_PAT }}
--- a/.github/workflows/publish-binaries.yml
+++ b/.github/workflows/publish-binaries.yml
@ -61,7 +61,7 @@ jobs:
    # No need to upload binaries for dry run (cron)
    - name: Upload binaries to release
      if: github.event_name == 'release'
-      uses: svenstaro/upload-release-action@v1-release
+      uses: svenstaro/upload-release-action@2.3.0
      with:
        repo_token: ${{ secrets.MEILI_BOT_GH_PAT }}
        file: target/release/${{ matrix.artifact_name }}
@ -99,7 +99,7 @@ jobs:
      - name: Upload the binary to release
        # No need to upload binaries for dry run (cron)
        if: github.event_name == 'release'
-        uses: svenstaro/upload-release-action@v1-release
+        uses: svenstaro/upload-release-action@2.3.0
        with:
          repo_token: ${{ secrets.MEILI_BOT_GH_PAT }}
          file: target/${{ matrix.target }}/release/meilisearch
@ -168,7 +168,7 @@ jobs:
      - name: Upload the binary to release
        # No need to upload binaries for dry run (cron)
        if: github.event_name == 'release'
-        uses: svenstaro/upload-release-action@v1-release
+        uses: svenstaro/upload-release-action@2.3.0
        with:
          repo_token: ${{ secrets.MEILI_BOT_GH_PAT }}
          file: target/${{ matrix.target }}/release/meilisearch
--- a/.github/workflows/publish-deb-brew-pkg.yml
+++ b/.github/workflows/publish-deb-brew-pkg.yml
@ -1,4 +1,4 @@
-name: Publish deb pkg to GitHub release & APT repository & Homebrew
+name: Publish to APT repository & Homebrew

 on:
  release:
@ -27,7 +27,7 @@ jobs:
    - name: Build deb package
      run: cargo deb -p meilisearch-http -o target/debian/meilisearch.deb
    - name: Upload debian pkg to release
-      uses: svenstaro/upload-release-action@v1-release
+      uses: svenstaro/upload-release-action@2.3.0
      with:
        repo_token: ${{ secrets.MEILI_BOT_GH_PAT }}
        file: target/debian/meilisearch.deb
@ -38,11 +38,11 @@ jobs:

  homebrew:
    name: Bump Homebrew formula
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-latest
    needs: check-version
    steps:
      - name: Create PR to Homebrew
-        uses: mislav/bump-homebrew-formula-action@v1
+        uses: mislav/bump-homebrew-formula-action@v2
        with:
          formula-name: meilisearch
        env:
--- a/.github/workflows/publish-docker-images.yml
+++ b/.github/workflows/publish-docker-images.yml
@ -3,8 +3,12 @@ on:
  schedule:
    - cron: '0 4 * * *' # Every day at 4:00am
  push:
-    tags:
-      - '*'
+    # Will run for every tag pushed except `latest`
+    # When the `latest` git tag is created with this [CI](../latest-git-tag.yml)
+    # we don't need to create a Docker `latest` image again.
+    # The `latest` Docker image push is already done in this CI when releasing a stable version of Meilisearch.
+    tags-ignore:
+      - latest

 name: Publish tagged images to Docker Hub

--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@ -25,7 +25,7 @@ jobs:
    steps:
    - uses: actions/checkout@v3
    - name: Cache dependencies
-      uses: Swatinem/rust-cache@v2.0.0
+      uses: Swatinem/rust-cache@v2.2.0
    - name: Run cargo check without any default features
      uses: actions-rs/cargo@v1
      with:
@ -49,7 +49,7 @@ jobs:
          toolchain: stable
          override: true
      - name: Cache dependencies
-        uses: Swatinem/rust-cache@v2.0.0
+        uses: Swatinem/rust-cache@v2.2.0
      - name: Run tests in debug
        uses: actions-rs/cargo@v1
        with:
@ -68,7 +68,7 @@ jobs:
          override: true
          components: clippy
      - name: Cache dependencies
-        uses: Swatinem/rust-cache@v2.0.0
+        uses: Swatinem/rust-cache@v2.2.0
      - name: Run cargo clippy
        uses: actions-rs/cargo@v1
        with:
@ -87,6 +87,6 @@ jobs:
          override: true
          components: rustfmt
      - name: Cache dependencies
-        uses: Swatinem/rust-cache@v2.0.0
+        uses: Swatinem/rust-cache@v2.2.0
      - name: Run cargo fmt
        run: cargo fmt --all -- --check
--- a/download-latest.sh
+++ b/download-latest.sh
@ -1,5 +1,8 @@
 #!/bin/sh

+# This script can optionally use a GitHub token to increase your request limit (for example, if using this script in a CI).
+# To use a GitHub token, pass it through the GITHUB_PAT environment variable.
+
 # GLOBALS

 # Colors
@ -10,9 +13,6 @@ DEFAULT='\033[0m'
 # Project name
 PNAME='meilisearch'

-# Version regexp i.e. v[number].[number].[number]
-GREP_SEMVER_REGEXP='v\([0-9]*\)[.]\([0-9]*\)[.]\([0-9]*\)$'
-
 # GitHub API address
 GITHUB_API='https://api.github.com/repos/meilisearch/meilisearch/releases'
 # GitHub Release address
@ -20,126 +20,26 @@ GITHUB_REL='https://github.com/meilisearch/meilisearch/releases/download/'

 # FUNCTIONS

-# semverParseInto and semverLT from: https://github.com/cloudflare/semver_bash/blob/master/semver.sh
-# usage: semverParseInto version major minor patch special
-# version: the string version
-# major, minor, patch, special: will be assigned by the function
-semverParseInto() {
-    local RE='[^0-9]*\([0-9]*\)[.]\([0-9]*\)[.]\([0-9]*\)\([0-9A-Za-z-]*\)'
-    # MAJOR
-    eval $2=`echo $1 | sed -e "s#$RE#\1#"`
-    # MINOR
-    eval $3=`echo $1 | sed -e "s#$RE#\2#"`
-    # PATCH
-    eval $4=`echo $1 | sed -e "s#$RE#\3#"`
-    # SPECIAL
-    eval $5=`echo $1 | sed -e "s#$RE#\4#"`
-}
-
-# usage: semverLT version1 version2
-semverLT() {
-    local MAJOR_A=0
-    local MINOR_A=0
-    local PATCH_A=0
-    local SPECIAL_A=0
-
-    local MAJOR_B=0
-    local MINOR_B=0
-    local PATCH_B=0
-    local SPECIAL_B=0
-
-    semverParseInto $1 MAJOR_A MINOR_A PATCH_A SPECIAL_A
-    semverParseInto $2 MAJOR_B MINOR_B PATCH_B SPECIAL_B
-
-    if [ $MAJOR_A -lt $MAJOR_B ]; then
-        return 0
-    fi
-    if [ $MAJOR_A -le $MAJOR_B ] && [ $MINOR_A -lt $MINOR_B ]; then
-        return 0
-    fi
-    if [ $MAJOR_A -le $MAJOR_B ] && [ $MINOR_A -le $MINOR_B ] && [ $PATCH_A -lt $PATCH_B ]; then
-        return 0
-    fi
-    if [ "_$SPECIAL_A"  == '_' ] && [ "_$SPECIAL_B"  == '_' ] ; then
-        return 1
-    fi
-    if [ "_$SPECIAL_A"  == '_' ] && [ "_$SPECIAL_B"  != '_' ] ; then
-        return 1
-    fi
-    if [ "_$SPECIAL_A"  != '_' ] && [ "_$SPECIAL_B"  == '_' ] ; then
-        return 0
-    fi
-    if [ "_$SPECIAL_A" < "_$SPECIAL_B" ]; then
-        return 0
-    fi
-
-    return 1
-}
-
-# Get a token from: https://github.com/settings/tokens to increase rate limit (from 60 to 5000),
-# make sure the token scope is set to 'public_repo'.
-# Create GITHUB_PAT environment variable once you acquired the token to start using it.
-# Returns the tag of the latest stable release (in terms of semver and not of release date).
+# Gets the version of the latest stable version of Meilisearch by setting the $latest variable.
+# Returns 0 in case of success, 1 otherwise.
 get_latest() {
    # temp_file is needed because the grep would start before the download is over
    temp_file=$(mktemp -q /tmp/$PNAME.XXXXXXXXX)
+    latest_release="$GITHUB_API/latest"
+
    if [ $? -ne 0 ]; then
-        echo "$0: Can't create temp file, bye bye.."
+        echo "$0: Can't create temp file."
+        fetch_release_failure_usage
        exit 1
    fi

    if [ -z "$GITHUB_PAT" ]; then
-        curl -s $GITHUB_API > "$temp_file" || return 1
+        curl -s "$latest_release" > "$temp_file" || return 1
    else
-        curl -H "Authorization: token $GITHUB_PAT" -s $GITHUB_API > "$temp_file" || return 1
+        curl -H "Authorization: token $GITHUB_PAT" -s "$latest_release" > "$temp_file" || return 1
    fi

-    releases=$(cat "$temp_file" | \
-        grep -E '"tag_name":|"draft":|"prerelease":' \
-        | tr -d ',"' | cut -d ':' -f2 | tr -d ' ')
-        # Returns a list of [tag_name draft_boolean prerelease_boolean ...]
-        # Ex: v0.10.1 false false v0.9.1-rc.1 false true v0.9.0 false false...
-
-    i=0
-    latest=''
-    current_tag=''
-    for release_info in $releases; do
-        # Checking tag_name
-        if [ $i -eq 0 ]; then
-            # If it's not an alpha or beta release
-            if echo "$release_info" | grep -q "$GREP_SEMVER_REGEXP"; then
-                current_tag=$release_info
-            else
-                current_tag=''
-            fi
-            i=1
-        # Checking draft boolean
-        elif [ $i -eq 1 ]; then
-            if [ "$release_info" = 'true' ]; then
-                current_tag=''
-            fi
-            i=2
-        # Checking prerelease boolean
-        elif [ $i -eq 2 ]; then
-            if [ "$release_info" = 'true' ]; then
-                current_tag=''
-            fi
-            i=0
-            # If the current_tag is valid
-            if [ "$current_tag" != '' ]; then
-                # If there is no latest yes
-                if [ "$latest" = '' ]; then
-                    latest="$current_tag"
-                else
-                    # Comparing latest and the current tag
-                    semverLT $current_tag $latest
-                    if [ $? -eq 1 ]; then
-                        latest="$current_tag"
-                    fi
-                fi
-            fi
-        fi
-    done
+    latest="$(cat "$temp_file" | grep '"tag_name":' | cut -d ':' -f2 | tr -d '"' | tr -d ',' | tr -d ' ')"

    rm -f "$temp_file"
    return 0
@ -174,9 +74,9 @@ get_archi() {
        archi='amd64'
        ;;
    'arm64')
-        # MacOS M1
+        # macOS M1/M2
        if [ $os = 'macos' ]; then
-            archi='amd64'
+            archi='apple-silicon'
        else
            archi='aarch64'
        fi
@ -210,12 +110,13 @@ fetch_release_failure_usage() {
    echo ''
    printf "$RED%s\n$DEFAULT" 'ERROR: Impossible to get the latest stable version of Meilisearch.'
    echo 'Please let us know about this issue: https://github.com/meilisearch/meilisearch/issues/new/choose'
+    echo ''
+    echo 'In the meantime, you can manually download the appropriate binary from the GitHub release assets here: https://github.com/meilisearch/meilisearch/releases/latest'
 }

 fill_release_variables() {
    # Fill $latest variable.
    if ! get_latest; then
-        # TO CHANGE.
        fetch_release_failure_usage
        exit 1
    fi
--- a/dump/src/error.rs
+++ b/dump/src/error.rs
@ -3,8 +3,6 @@ use thiserror::Error;

 #[derive(Debug, Error)]
 pub enum Error {
-    #[error("The version 1 of the dumps is not supported anymore. You can re-export your dump from a version between 0.21 and 0.24, or start fresh from a version 0.25 onwards.")]
-    DumpV1Unsupported,
    #[error("Bad index name.")]
    BadIndexName,
    #[error("Malformed task.")]
@ -28,7 +26,6 @@ impl ErrorCode for Error {
            Error::Uuid(_) => Code::Internal,

            // all these errors should never be raised when creating a dump, thus no error code should be associated.
-            Error::DumpV1Unsupported => Code::Internal,
            Error::BadIndexName => Code::Internal,
            Error::MalformedTask => Code::Internal,
        }
--- a/dump/src/lib.rs
+++ b/dump/src/lib.rs
@ -23,7 +23,7 @@ const CURRENT_DUMP_VERSION: Version = Version::V6;

 type Result<T> = std::result::Result<T, Error>;

-#[derive(Debug, PartialEq, Eq, Serialize, Deserialize)]
+#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
 #[serde(rename_all = "camelCase")]
 pub struct Metadata {
    pub dump_version: Version,
@ -32,7 +32,7 @@ pub struct Metadata {
    pub dump_date: OffsetDateTime,
 }

-#[derive(Debug, PartialEq, Eq, Serialize, Deserialize)]
+#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
 #[serde(rename_all = "camelCase")]
 pub struct IndexMetadata {
    pub uid: String,
@ -43,7 +43,7 @@ pub struct IndexMetadata {
    pub updated_at: OffsetDateTime,
 }

-#[derive(Debug, PartialEq, Eq, Deserialize, Serialize)]
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Deserialize, Serialize)]
 pub enum Version {
    V1,
    V2,
--- a/dump/src/reader/compat/mod.rs
+++ b/dump/src/reader/compat/mod.rs
@ -1,3 +1,4 @@
+pub mod v1_to_v2;
 pub mod v2_to_v3;
 pub mod v3_to_v4;
 pub mod v4_to_v5;
--- a/dump/src/reader/compat/snapshots/dumpreadercompat__v1_to_v2testcompat_v1_v2-11.snap
+++ b/dump/src/reader/compat/snapshots/dumpreadercompat__v1_to_v2testcompat_v1_v2-11.snap
@ -0,0 +1,23 @@
+---
+source: dump/src/reader/compat/v1_to_v2.rs
+expression: spells.settings().unwrap()
+---
+{
+  "displayedAttributes": [
+    "*"
+  ],
+  "searchableAttributes": [
+    "*"
+  ],
+  "filterableAttributes": [],
+  "rankingRules": [
+    "typo",
+    "words",
+    "proximity",
+    "attribute",
+    "exactness"
+  ],
+  "stopWords": [],
+  "synonyms": {},
+  "distinctAttribute": null
+}
--- a/dump/src/reader/compat/snapshots/dumpreadercompat__v1_to_v2testcompat_v1_v2-3.snap
+++ b/dump/src/reader/compat/snapshots/dumpreadercompat__v1_to_v2testcompat_v1_v2-3.snap
@ -0,0 +1,37 @@
+---
+source: dump/src/reader/compat/v1_to_v2.rs
+expression: products.settings().unwrap()
+---
+{
+  "displayedAttributes": [
+    "*"
+  ],
+  "searchableAttributes": [
+    "*"
+  ],
+  "filterableAttributes": [],
+  "rankingRules": [
+    "typo",
+    "words",
+    "proximity",
+    "attribute",
+    "exactness"
+  ],
+  "stopWords": [],
+  "synonyms": {
+    "android": [
+      "phone",
+      "smartphone"
+    ],
+    "iphone": [
+      "phone",
+      "smartphone"
+    ],
+    "phone": [
+      "android",
+      "iphone",
+      "smartphone"
+    ]
+  },
+  "distinctAttribute": null
+}
--- a/dump/src/reader/compat/snapshots/dumpreadercompat__v1_to_v2testcompat_v1_v2-6.snap
+++ b/dump/src/reader/compat/snapshots/dumpreadercompat__v1_to_v2testcompat_v1_v2-6.snap
@ -0,0 +1,27 @@
+---
+source: dump/src/reader/compat/v1_to_v2.rs
+expression: movies.settings().unwrap()
+---
+{
+  "displayedAttributes": [
+    "*"
+  ],
+  "searchableAttributes": [
+    "*"
+  ],
+  "filterableAttributes": [
+    "genres",
+    "id"
+  ],
+  "rankingRules": [
+    "typo",
+    "words",
+    "proximity",
+    "attribute",
+    "exactness",
+    "asc(release_date)"
+  ],
+  "stopWords": [],
+  "synonyms": {},
+  "distinctAttribute": null
+}
--- a/dump/src/reader/compat/snapshots/dumpreadercompat__v1_to_v2testcompat_v1_v2-7.snap
+++ b/dump/src/reader/compat/snapshots/dumpreadercompat__v1_to_v2testcompat_v1_v2-7.snap
@ -0,0 +1,27 @@
+---
+source: dump/src/reader/compat/v1_to_v2.rs
+expression: movies.settings().unwrap()
+---
+{
+  "displayedAttributes": [
+    "*"
+  ],
+  "searchableAttributes": [
+    "*"
+  ],
+  "filterableAttributes": [
+    "genres",
+    "id"
+  ],
+  "rankingRules": [
+    "typo",
+    "words",
+    "proximity",
+    "attribute",
+    "exactness",
+    "asc(release_date)"
+  ],
+  "stopWords": [],
+  "synonyms": {},
+  "distinctAttribute": null
+}
--- a/dump/src/reader/compat/snapshots/dumpreadercompat__v1_to_v2testcompat_v1_v2-9.snap
+++ b/dump/src/reader/compat/snapshots/dumpreadercompat__v1_to_v2testcompat_v1_v2-9.snap
@ -0,0 +1,23 @@
+---
+source: dump/src/reader/compat/v1_to_v2.rs
+expression: spells.settings().unwrap()
+---
+{
+  "displayedAttributes": [
+    "*"
+  ],
+  "searchableAttributes": [
+    "*"
+  ],
+  "filterableAttributes": [],
+  "rankingRules": [
+    "typo",
+    "words",
+    "proximity",
+    "attribute",
+    "exactness"
+  ],
+  "stopWords": [],
+  "synonyms": {},
+  "distinctAttribute": null
+}
--- a/dump/src/reader/compat/v1_to_v2.rs
+++ b/dump/src/reader/compat/v1_to_v2.rs
@ -0,0 +1,414 @@
+use std::{collections::BTreeSet, str::FromStr};
+
+use crate::reader::{v1, v2, Document};
+
+use super::v2_to_v3::CompatV2ToV3;
+use crate::Result;
+
+pub struct CompatV1ToV2 {
+    pub from: v1::V1Reader,
+}
+
+impl CompatV1ToV2 {
+    pub fn new(v1: v1::V1Reader) -> Self {
+        Self { from: v1 }
+    }
+
+    pub fn to_v3(self) -> CompatV2ToV3 {
+        CompatV2ToV3::Compat(self)
+    }
+
+    pub fn version(&self) -> crate::Version {
+        self.from.version()
+    }
+
+    pub fn date(&self) -> Option<time::OffsetDateTime> {
+        self.from.date()
+    }
+
+    pub fn index_uuid(&self) -> Vec<v2::meta::IndexUuid> {
+        self.from
+            .index_uuid()
+            .into_iter()
+            .enumerate()
+            // we use the index of the index 😬 as UUID for the index, so that we can link the v2::Task to their index
+            .map(|(index, index_uuid)| v2::meta::IndexUuid {
+                uid: index_uuid.uid,
+                uuid: uuid::Uuid::from_u128(index as u128),
+            })
+            .collect()
+    }
+
+    pub fn indexes(&self) -> Result<impl Iterator<Item = Result<CompatIndexV1ToV2>> + '_> {
+        Ok(self.from.indexes()?.map(|index_reader| Ok(CompatIndexV1ToV2 { from: index_reader? })))
+    }
+
+    pub fn tasks(
+        &mut self,
+    ) -> Box<dyn Iterator<Item = Result<(v2::Task, Option<v2::UpdateFile>)>> + '_> {
+        // Convert an error here to an iterator yielding the error
+        let indexes = match self.from.indexes() {
+            Ok(indexes) => indexes,
+            Err(err) => return Box::new(std::iter::once(Err(err))),
+        };
+        let it = indexes.enumerate().flat_map(
+            move |(index, index_reader)| -> Box<dyn Iterator<Item = _>> {
+                let index_reader = match index_reader {
+                    Ok(index_reader) => index_reader,
+                    Err(err) => return Box::new(std::iter::once(Err(err))),
+                };
+                Box::new(
+                    index_reader
+                        .tasks()
+                        // Filter out the UpdateStatus::Customs variant that is not supported in v2
+                        // and enqueued tasks, that don't contain the necessary update file in v1
+                        .filter_map(move |task| -> Option<_> {
+                            let task = match task {
+                                Ok(task) => task,
+                                Err(err) => return Some(Err(err)),
+                            };
+                            Some(Ok((
+                                v2::Task {
+                                    uuid: uuid::Uuid::from_u128(index as u128),
+                                    update: Option::from(task)?,
+                                },
+                                None,
+                            )))
+                        }),
+                )
+            },
+        );
+        Box::new(it)
+    }
+}
+
+pub struct CompatIndexV1ToV2 {
+    pub from: v1::V1IndexReader,
+}
+
+impl CompatIndexV1ToV2 {
+    pub fn metadata(&self) -> &crate::IndexMetadata {
+        self.from.metadata()
+    }
+
+    pub fn documents(&mut self) -> Result<Box<dyn Iterator<Item = Result<Document>> + '_>> {
+        self.from.documents().map(|it| Box::new(it) as Box<dyn Iterator<Item = _>>)
+    }
+
+    pub fn settings(&mut self) -> Result<v2::settings::Settings<v2::settings::Checked>> {
+        Ok(v2::settings::Settings::<v2::settings::Unchecked>::from(self.from.settings()?).check())
+    }
+}
+
+impl From<v1::settings::Settings> for v2::Settings<v2::Unchecked> {
+    fn from(source: v1::settings::Settings) -> Self {
+        let displayed_attributes = source
+            .displayed_attributes
+            .map(|opt| opt.map(|displayed_attributes| displayed_attributes.into_iter().collect()));
+        let attributes_for_faceting = source.attributes_for_faceting.map(|opt| {
+            opt.map(|attributes_for_faceting| attributes_for_faceting.into_iter().collect())
+        });
+        let ranking_rules = source.ranking_rules.map(|opt| {
+            opt.map(|ranking_rules| {
+                ranking_rules
+                    .into_iter()
+                    .filter_map(|ranking_rule| {
+                        match v1::settings::RankingRule::from_str(&ranking_rule) {
+                            Ok(ranking_rule) => {
+                                let criterion: Option<v2::settings::Criterion> =
+                                    ranking_rule.into();
+                                criterion.as_ref().map(ToString::to_string)
+                            }
+                            Err(()) => Some(ranking_rule),
+                        }
+                    })
+                    .collect()
+            })
+        });
+
+        Self {
+            displayed_attributes,
+            searchable_attributes: source.searchable_attributes,
+            filterable_attributes: attributes_for_faceting,
+            ranking_rules,
+            stop_words: source.stop_words,
+            synonyms: source.synonyms,
+            distinct_attribute: source.distinct_attribute,
+            _kind: std::marker::PhantomData,
+        }
+    }
+}
+
+impl From<v1::update::UpdateStatus> for Option<v2::updates::UpdateStatus> {
+    fn from(source: v1::update::UpdateStatus) -> Self {
+        use v1::update::UpdateStatus as UpdateStatusV1;
+        use v2::updates::UpdateStatus as UpdateStatusV2;
+        Some(match source {
+            UpdateStatusV1::Enqueued { content } => {
+                log::warn!(
+                    "Cannot import task {} (importing enqueued tasks from v1 dumps is unsupported)",
+                    content.update_id
+                );
+                log::warn!("Task will be skipped in the queue of imported tasks.");
+
+                return None;
+            }
+            UpdateStatusV1::Failed { content } => UpdateStatusV2::Failed(v2::updates::Failed {
+                from: v2::updates::Processing {
+                    from: v2::updates::Enqueued {
+                        update_id: content.update_id,
+                        meta: Option::from(content.update_type)?,
+                        enqueued_at: content.enqueued_at,
+                        content: None,
+                    },
+                    started_processing_at: content.processed_at
+                        - std::time::Duration::from_secs_f64(content.duration),
+                },
+                error: v2::ResponseError {
+                    // error code is ignored by serialization, and so always default in deserialized v2 dumps
+                    // that's a good thing, because we don't have them in v1 dump 😅
+                    code: http::StatusCode::default(),
+                    message: content.error.unwrap_or_default(),
+                    // error codes are unchanged between v1 and v2
+                    error_code: content.error_code.unwrap_or_default(),
+                    // error types are unchanged between v1 and v2
+                    error_type: content.error_type.unwrap_or_default(),
+                    // error links are unchanged between v1 and v2
+                    error_link: content.error_link.unwrap_or_default(),
+                },
+                failed_at: content.processed_at,
+            }),
+            UpdateStatusV1::Processed { content } => {
+                UpdateStatusV2::Processed(v2::updates::Processed {
+                    success: match &content.update_type {
+                        v1::update::UpdateType::ClearAll => {
+                            v2::updates::UpdateResult::DocumentDeletion { deleted: u64::MAX }
+                        }
+                        v1::update::UpdateType::Customs => v2::updates::UpdateResult::Other,
+                        v1::update::UpdateType::DocumentsAddition { number } => {
+                            v2::updates::UpdateResult::DocumentsAddition(
+                                v2::updates::DocumentAdditionResult { nb_documents: *number },
+                            )
+                        }
+                        v1::update::UpdateType::DocumentsPartial { number } => {
+                            v2::updates::UpdateResult::DocumentsAddition(
+                                v2::updates::DocumentAdditionResult { nb_documents: *number },
+                            )
+                        }
+                        v1::update::UpdateType::DocumentsDeletion { number } => {
+                            v2::updates::UpdateResult::DocumentDeletion { deleted: *number as u64 }
+                        }
+                        v1::update::UpdateType::Settings { .. } => v2::updates::UpdateResult::Other,
+                    },
+                    processed_at: content.processed_at,
+                    from: v2::updates::Processing {
+                        from: v2::updates::Enqueued {
+                            update_id: content.update_id,
+                            meta: Option::from(content.update_type)?,
+                            enqueued_at: content.enqueued_at,
+                            content: None,
+                        },
+                        started_processing_at: content.processed_at
+                            - std::time::Duration::from_secs_f64(content.duration),
+                    },
+                })
+            }
+        })
+    }
+}
+
+impl From<v1::update::UpdateType> for Option<v2::updates::UpdateMeta> {
+    fn from(source: v1::update::UpdateType) -> Self {
+        Some(match source {
+            v1::update::UpdateType::ClearAll => v2::updates::UpdateMeta::ClearDocuments,
+            v1::update::UpdateType::Customs => {
+                log::warn!("Ignoring task with type 'Customs' that is no longer supported");
+                return None;
+            }
+            v1::update::UpdateType::DocumentsAddition { .. } => {
+                v2::updates::UpdateMeta::DocumentsAddition {
+                    method: v2::updates::IndexDocumentsMethod::ReplaceDocuments,
+                    format: v2::updates::UpdateFormat::Json,
+                    primary_key: None,
+                }
+            }
+            v1::update::UpdateType::DocumentsPartial { .. } => {
+                v2::updates::UpdateMeta::DocumentsAddition {
+                    method: v2::updates::IndexDocumentsMethod::UpdateDocuments,
+                    format: v2::updates::UpdateFormat::Json,
+                    primary_key: None,
+                }
+            }
+            v1::update::UpdateType::DocumentsDeletion { .. } => {
+                v2::updates::UpdateMeta::DeleteDocuments { ids: vec![] }
+            }
+            v1::update::UpdateType::Settings { settings } => {
+                v2::updates::UpdateMeta::Settings((*settings).into())
+            }
+        })
+    }
+}
+
+impl From<v1::settings::SettingsUpdate> for v2::Settings<v2::Unchecked> {
+    fn from(source: v1::settings::SettingsUpdate) -> Self {
+        let displayed_attributes: Option<Option<BTreeSet<String>>> =
+            source.displayed_attributes.into();
+
+        let attributes_for_faceting: Option<Option<Vec<String>>> =
+            source.attributes_for_faceting.into();
+
+        let ranking_rules: Option<Option<Vec<v1::settings::RankingRule>>> =
+            source.ranking_rules.into();
+
+        // go from the concrete types of v1 (RankingRule) to the concrete type of v2 (Criterion),
+        // and then back to string as this is what the settings manipulate
+        let ranking_rules = ranking_rules.map(|opt| {
+            opt.map(|ranking_rules| {
+                ranking_rules
+                    .into_iter()
+                    // filter out the WordsPosition ranking rule that exists in v1 but not v2
+                    .filter_map(|ranking_rule| {
+                        Option::<v2::settings::Criterion>::from(ranking_rule)
+                    })
+                    .map(|criterion| criterion.to_string())
+                    .collect()
+            })
+        });
+
+        Self {
+            displayed_attributes: displayed_attributes.map(|opt| {
+                opt.map(|displayed_attributes| displayed_attributes.into_iter().collect())
+            }),
+            searchable_attributes: source.searchable_attributes.into(),
+            filterable_attributes: attributes_for_faceting.map(|opt| {
+                opt.map(|attributes_for_faceting| attributes_for_faceting.into_iter().collect())
+            }),
+            ranking_rules,
+            stop_words: source.stop_words.into(),
+            synonyms: source.synonyms.into(),
+            distinct_attribute: source.distinct_attribute.into(),
+            _kind: std::marker::PhantomData,
+        }
+    }
+}
+
+impl From<v1::settings::RankingRule> for Option<v2::settings::Criterion> {
+    fn from(source: v1::settings::RankingRule) -> Self {
+        match source {
+            v1::settings::RankingRule::Typo => Some(v2::settings::Criterion::Typo),
+            v1::settings::RankingRule::Words => Some(v2::settings::Criterion::Words),
+            v1::settings::RankingRule::Proximity => Some(v2::settings::Criterion::Proximity),
+            v1::settings::RankingRule::Attribute => Some(v2::settings::Criterion::Attribute),
+            v1::settings::RankingRule::WordsPosition => {
+                log::warn!("Removing the 'WordsPosition' ranking rule that is no longer supported, please check the resulting ranking rules of your indexes");
+                None
+            }
+            v1::settings::RankingRule::Exactness => Some(v2::settings::Criterion::Exactness),
+            v1::settings::RankingRule::Asc(field_name) => {
+                Some(v2::settings::Criterion::Asc(field_name))
+            }
+            v1::settings::RankingRule::Desc(field_name) => {
+                Some(v2::settings::Criterion::Desc(field_name))
+            }
+        }
+    }
+}
+
+impl<T> From<v1::settings::UpdateState<T>> for Option<Option<T>> {
+    fn from(source: v1::settings::UpdateState<T>) -> Self {
+        match source {
+            v1::settings::UpdateState::Update(new_value) => Some(Some(new_value)),
+            v1::settings::UpdateState::Clear => Some(None),
+            v1::settings::UpdateState::Nothing => None,
+        }
+    }
+}
+
+#[cfg(test)]
+pub(crate) mod test {
+    use std::fs::File;
+    use std::io::BufReader;
+
+    use flate2::bufread::GzDecoder;
+    use meili_snap::insta;
+    use tempfile::TempDir;
+
+    use super::*;
+
+    #[test]
+    fn compat_v1_v2() {
+        let dump = File::open("tests/assets/v1.dump").unwrap();
+        let dir = TempDir::new().unwrap();
+        let mut dump = BufReader::new(dump);
+        let gz = GzDecoder::new(&mut dump);
+        let mut archive = tar::Archive::new(gz);
+        archive.unpack(dir.path()).unwrap();
+
+        let mut dump = v1::V1Reader::open(dir).unwrap().to_v2();
+
+        // top level infos
+        assert_eq!(dump.date(), None);
+
+        // tasks
+        let tasks = dump.tasks().collect::<Result<Vec<_>>>().unwrap();
+        let (tasks, update_files): (Vec<_>, Vec<_>) = tasks.into_iter().unzip();
+        meili_snap::snapshot_hash!(meili_snap::json_string!(tasks), @"ad6245d98d1a8e30535f3339a9a8d223");
+        assert_eq!(update_files.len(), 9);
+        assert!(update_files[..].iter().all(|u| u.is_none())); // no update file in dumps v1
+
+        // indexes
+        let mut indexes = dump.indexes().unwrap().collect::<Result<Vec<_>>>().unwrap();
+        // the index are not ordered in any way by default
+        indexes.sort_by_key(|index| index.metadata().uid.to_string());
+
+        let mut products = indexes.pop().unwrap();
+        let mut movies = indexes.pop().unwrap();
+        let mut spells = indexes.pop().unwrap();
+        assert!(indexes.is_empty());
+
+        // products
+        insta::assert_json_snapshot!(products.metadata(), { ".createdAt" => "[now]", ".updatedAt" => "[now]" }, @r###"
+        {
+          "uid": "products",
+          "primaryKey": "sku",
+          "createdAt": "[now]",
+          "updatedAt": "[now]"
+        }
+        "###);
+
+        insta::assert_json_snapshot!(products.settings().unwrap());
+        let documents = products.documents().unwrap().collect::<Result<Vec<_>>>().unwrap();
+        assert_eq!(documents.len(), 10);
+        meili_snap::snapshot_hash!(format!("{:#?}", documents), @"b01c8371aea4c7171af0d4d846a2bdca");
+
+        // movies
+        insta::assert_json_snapshot!(movies.metadata(), { ".createdAt" => "[now]", ".updatedAt" => "[now]" }, @r###"
+        {
+          "uid": "movies",
+          "primaryKey": "id",
+          "createdAt": "[now]",
+          "updatedAt": "[now]"
+        }
+        "###);
+
+        insta::assert_json_snapshot!(movies.settings().unwrap());
+        let documents = movies.documents().unwrap().collect::<Result<Vec<_>>>().unwrap();
+        assert_eq!(documents.len(), 10);
+        meili_snap::snapshot_hash!(format!("{:#?}", documents), @"b63dbed5bbc059f3e32bc471ae699bf5");
+
+        // spells
+        insta::assert_json_snapshot!(spells.metadata(), { ".createdAt" => "[now]", ".updatedAt" => "[now]" }, @r###"
+        {
+          "uid": "dnd_spells",
+          "primaryKey": "index",
+          "createdAt": "[now]",
+          "updatedAt": "[now]"
+        }
+        "###);
+
+        insta::assert_json_snapshot!(spells.settings().unwrap());
+        let documents = spells.documents().unwrap().collect::<Result<Vec<_>>>().unwrap();
+        assert_eq!(documents.len(), 10);
+        meili_snap::snapshot_hash!(format!("{:#?}", documents), @"aa24c0cfc733d66c396237ad44263bed");
+    }
+}
--- a/dump/src/reader/compat/v2_to_v3.rs
+++ b/dump/src/reader/compat/v2_to_v3.rs
@ -4,22 +4,28 @@ use std::str::FromStr;
 use time::OffsetDateTime;
 use uuid::Uuid;

+use super::v1_to_v2::{CompatIndexV1ToV2, CompatV1ToV2};
 use super::v3_to_v4::CompatV3ToV4;
 use crate::reader::{v2, v3, Document};
 use crate::Result;

-pub struct CompatV2ToV3 {
-    pub from: v2::V2Reader,
+pub enum CompatV2ToV3 {
+    V2(v2::V2Reader),
+    Compat(CompatV1ToV2),
 }

 impl CompatV2ToV3 {
    pub fn new(v2: v2::V2Reader) -> CompatV2ToV3 {
-        CompatV2ToV3 { from: v2 }
+        CompatV2ToV3::V2(v2)
    }

    pub fn index_uuid(&self) -> Vec<v3::meta::IndexUuid> {
-        self.from
-            .index_uuid()
+        let v2_uuids = match self {
+            CompatV2ToV3::V2(from) => from.index_uuid(),
+            CompatV2ToV3::Compat(compat) => compat.index_uuid(),
+        };
+        v2_uuids
+            .into_iter()
            .into_iter()
            .map(|index| v3::meta::IndexUuid { uid: index.uid, uuid: index.uuid })
            .collect()
@ -30,11 +36,17 @@ impl CompatV2ToV3 {
    }

    pub fn version(&self) -> crate::Version {
-        self.from.version()
+        match self {
+            CompatV2ToV3::V2(from) => from.version(),
+            CompatV2ToV3::Compat(compat) => compat.version(),
+        }
    }

    pub fn date(&self) -> Option<time::OffsetDateTime> {
-        self.from.date()
+        match self {
+            CompatV2ToV3::V2(from) => from.date(),
+            CompatV2ToV3::Compat(compat) => compat.date(),
+        }
    }

    pub fn instance_uid(&self) -> Result<Option<uuid::Uuid>> {
@ -42,10 +54,18 @@ impl CompatV2ToV3 {
    }

    pub fn indexes(&self) -> Result<impl Iterator<Item = Result<CompatIndexV2ToV3>> + '_> {
-        Ok(self.from.indexes()?.map(|index_reader| -> Result<_> {
-            let compat = CompatIndexV2ToV3::new(index_reader?);
-            Ok(compat)
-        }))
+        Ok(match self {
+            CompatV2ToV3::V2(from) => Box::new(from.indexes()?.map(|index_reader| -> Result<_> {
+                let compat = CompatIndexV2ToV3::new(index_reader?);
+                Ok(compat)
+            }))
+                as Box<dyn Iterator<Item = Result<CompatIndexV2ToV3>> + '_>,
+            CompatV2ToV3::Compat(compat) => Box::new(compat.indexes()?.map(|index_reader| {
+                let compat = CompatIndexV2ToV3::Compat(Box::new(index_reader?));
+                Ok(compat)
+            }))
+                as Box<dyn Iterator<Item = Result<CompatIndexV2ToV3>> + '_>,
+        })
    }

    pub fn tasks(
@ -54,11 +74,13 @@ impl CompatV2ToV3 {
        dyn Iterator<Item = Result<(v3::Task, Option<Box<dyn Iterator<Item = Result<Document>>>>)>>
            + '_,
    > {
-        let _indexes = self.from.index_uuid.clone();
+        let tasks = match self {
+            CompatV2ToV3::V2(from) => from.tasks(),
+            CompatV2ToV3::Compat(compat) => compat.tasks(),
+        };

        Box::new(
-            self.from
-                .tasks()
+            tasks
                .map(move |task| {
                    task.map(|(task, content_file)| {
                        let task = v3::Task { uuid: task.uuid, update: task.update.into() };
@ -76,27 +98,38 @@ impl CompatV2ToV3 {
    }
 }

-pub struct CompatIndexV2ToV3 {
-    from: v2::V2IndexReader,
+pub enum CompatIndexV2ToV3 {
+    V2(v2::V2IndexReader),
+    Compat(Box<CompatIndexV1ToV2>),
 }

 impl CompatIndexV2ToV3 {
    pub fn new(v2: v2::V2IndexReader) -> CompatIndexV2ToV3 {
-        CompatIndexV2ToV3 { from: v2 }
+        CompatIndexV2ToV3::V2(v2)
    }

    pub fn metadata(&self) -> &crate::IndexMetadata {
-        self.from.metadata()
+        match self {
+            CompatIndexV2ToV3::V2(from) => from.metadata(),
+            CompatIndexV2ToV3::Compat(compat) => compat.metadata(),
+        }
    }

    pub fn documents(&mut self) -> Result<Box<dyn Iterator<Item = Result<Document>> + '_>> {
-        self.from
-            .documents()
-            .map(|iter| Box::new(iter) as Box<dyn Iterator<Item = Result<Document>> + '_>)
+        match self {
+            CompatIndexV2ToV3::V2(from) => from
+                .documents()
+                .map(|iter| Box::new(iter) as Box<dyn Iterator<Item = Result<Document>> + '_>),
+            CompatIndexV2ToV3::Compat(compat) => compat.documents(),
+        }
    }

    pub fn settings(&mut self) -> Result<v3::Settings<v3::Checked>> {
-        Ok(v3::Settings::<v3::Unchecked>::from(self.from.settings()?).check())
+        let settings = match self {
+            CompatIndexV2ToV3::V2(from) => from.settings()?,
+            CompatIndexV2ToV3::Compat(compat) => compat.settings()?,
+        };
+        Ok(v3::Settings::<v3::Unchecked>::from(settings).check())
    }
 }

--- a/dump/src/reader/mod.rs
+++ b/dump/src/reader/mod.rs
@ -9,11 +9,11 @@ use self::compat::v4_to_v5::CompatV4ToV5;
 use self::compat::v5_to_v6::{CompatIndexV5ToV6, CompatV5ToV6};
 use self::v5::V5Reader;
 use self::v6::{V6IndexReader, V6Reader};
-use crate::{Error, Result, Version};
+use crate::{Result, Version};

 mod compat;

-// pub(self) mod v1;
+pub(self) mod v1;
 pub(self) mod v2;
 pub(self) mod v3;
 pub(self) mod v4;
@ -45,8 +45,9 @@ impl DumpReader {
        let MetadataVersion { dump_version } = serde_json::from_reader(&mut meta_file)?;

        match dump_version {
-            // Version::V1 => Ok(Box::new(v1::Reader::open(path)?)),
-            Version::V1 => Err(Error::DumpV1Unsupported),
+            Version::V1 => {
+                Ok(v1::V1Reader::open(path)?.to_v2().to_v3().to_v4().to_v5().to_v6().into())
+            }
            Version::V2 => Ok(v2::V2Reader::open(path)?.to_v3().to_v4().to_v5().to_v6().into()),
            Version::V3 => Ok(v3::V3Reader::open(path)?.to_v4().to_v5().to_v6().into()),
            Version::V4 => Ok(v4::V4Reader::open(path)?.to_v5().to_v6().into()),
@ -528,4 +529,81 @@ pub(crate) mod test {
        assert_eq!(documents.len(), 10);
        meili_snap::snapshot_hash!(format!("{:#?}", documents), @"235016433dd04262c7f2da01d1e808ce");
    }
+
+    #[test]
+    fn import_dump_v1() {
+        let dump = File::open("tests/assets/v1.dump").unwrap();
+        let mut dump = DumpReader::open(dump).unwrap();
+
+        // top level infos
+        assert_eq!(dump.date(), None);
+        assert_eq!(dump.instance_uid().unwrap(), None);
+
+        // tasks
+        let tasks = dump.tasks().unwrap().collect::<Result<Vec<_>>>().unwrap();
+        let (tasks, update_files): (Vec<_>, Vec<_>) = tasks.into_iter().unzip();
+        meili_snap::snapshot_hash!(meili_snap::json_string!(tasks), @"b3e3652bfc10a76670be157d2507d761");
+        assert_eq!(update_files.len(), 9);
+        assert!(update_files[..].iter().all(|u| u.is_none())); // no update file in dump v1
+
+        // keys
+        let keys = dump.keys().unwrap().collect::<Result<Vec<_>>>().unwrap();
+        meili_snap::snapshot!(meili_snap::json_string!(keys), @"[]");
+        meili_snap::snapshot_hash!(meili_snap::json_string!(keys), @"d751713988987e9331980363e24189ce");
+
+        // indexes
+        let mut indexes = dump.indexes().unwrap().collect::<Result<Vec<_>>>().unwrap();
+        // the index are not ordered in any way by default
+        indexes.sort_by_key(|index| index.metadata().uid.to_string());
+
+        let mut products = indexes.pop().unwrap();
+        let mut movies = indexes.pop().unwrap();
+        let mut spells = indexes.pop().unwrap();
+        assert!(indexes.is_empty());
+
+        // products
+        insta::assert_json_snapshot!(products.metadata(), { ".createdAt" => "[now]", ".updatedAt" => "[now]" }, @r###"
+        {
+          "uid": "products",
+          "primaryKey": "sku",
+          "createdAt": "[now]",
+          "updatedAt": "[now]"
+        }
+        "###);
+
+        insta::assert_json_snapshot!(products.settings().unwrap());
+        let documents = products.documents().unwrap().collect::<Result<Vec<_>>>().unwrap();
+        assert_eq!(documents.len(), 10);
+        meili_snap::snapshot_hash!(format!("{:#?}", documents), @"b01c8371aea4c7171af0d4d846a2bdca");
+
+        // movies
+        insta::assert_json_snapshot!(movies.metadata(), { ".createdAt" => "[now]", ".updatedAt" => "[now]" }, @r###"
+        {
+          "uid": "movies",
+          "primaryKey": "id",
+          "createdAt": "[now]",
+          "updatedAt": "[now]"
+        }
+        "###);
+
+        insta::assert_json_snapshot!(movies.settings().unwrap());
+        let documents = movies.documents().unwrap().collect::<Result<Vec<_>>>().unwrap();
+        assert_eq!(documents.len(), 10);
+        meili_snap::snapshot_hash!(format!("{:#?}", documents), @"b63dbed5bbc059f3e32bc471ae699bf5");
+
+        // spells
+        insta::assert_json_snapshot!(spells.metadata(), { ".createdAt" => "[now]", ".updatedAt" => "[now]" }, @r###"
+        {
+          "uid": "dnd_spells",
+          "primaryKey": "index",
+          "createdAt": "[now]",
+          "updatedAt": "[now]"
+        }
+        "###);
+
+        insta::assert_json_snapshot!(spells.settings().unwrap());
+        let documents = spells.documents().unwrap().collect::<Result<Vec<_>>>().unwrap();
+        assert_eq!(documents.len(), 10);
+        meili_snap::snapshot_hash!(format!("{:#?}", documents), @"aa24c0cfc733d66c396237ad44263bed");
+    }
 }
--- a/dump/src/reader/snapshots/dumpreadertest__import_dump_v1-10.snap
+++ b/dump/src/reader/snapshots/dumpreadertest__import_dump_v1-10.snap
@ -0,0 +1,27 @@
+---
+source: dump/src/reader/mod.rs
+expression: movies.settings().unwrap()
+---
+{
+  "displayedAttributes": [
+    "*"
+  ],
+  "searchableAttributes": [
+    "*"
+  ],
+  "filterableAttributes": [
+    "genres",
+    "id"
+  ],
+  "rankingRules": [
+    "typo",
+    "words",
+    "proximity",
+    "attribute",
+    "exactness",
+    "release_date:asc"
+  ],
+  "stopWords": [],
+  "synonyms": {},
+  "distinctAttribute": null
+}
--- a/dump/src/reader/snapshots/dumpreadertest__import_dump_v1-11.snap
+++ b/dump/src/reader/snapshots/dumpreadertest__import_dump_v1-11.snap
@ -0,0 +1,23 @@
+---
+source: dump/src/reader/mod.rs
+expression: spells.settings().unwrap()
+---
+{
+  "displayedAttributes": [
+    "*"
+  ],
+  "searchableAttributes": [
+    "*"
+  ],
+  "filterableAttributes": [],
+  "rankingRules": [
+    "typo",
+    "words",
+    "proximity",
+    "attribute",
+    "exactness"
+  ],
+  "stopWords": [],
+  "synonyms": {},
+  "distinctAttribute": null
+}
--- a/dump/src/reader/snapshots/dumpreadertest__import_dump_v1-14.snap
+++ b/dump/src/reader/snapshots/dumpreadertest__import_dump_v1-14.snap
@ -0,0 +1,23 @@
+---
+source: dump/src/reader/mod.rs
+expression: spells.settings().unwrap()
+---
+{
+  "displayedAttributes": [
+    "*"
+  ],
+  "searchableAttributes": [
+    "*"
+  ],
+  "filterableAttributes": [],
+  "rankingRules": [
+    "typo",
+    "words",
+    "proximity",
+    "attribute",
+    "exactness"
+  ],
+  "stopWords": [],
+  "synonyms": {},
+  "distinctAttribute": null
+}
--- a/dump/src/reader/snapshots/dumpreadertest__import_dump_v1-5.snap
+++ b/dump/src/reader/snapshots/dumpreadertest__import_dump_v1-5.snap
@ -0,0 +1,37 @@
+---
+source: dump/src/reader/mod.rs
+expression: products.settings().unwrap()
+---
+{
+  "displayedAttributes": [
+    "*"
+  ],
+  "searchableAttributes": [
+    "*"
+  ],
+  "filterableAttributes": [],
+  "rankingRules": [
+    "typo",
+    "words",
+    "proximity",
+    "attribute",
+    "exactness"
+  ],
+  "stopWords": [],
+  "synonyms": {
+    "android": [
+      "phone",
+      "smartphone"
+    ],
+    "iphone": [
+      "phone",
+      "smartphone"
+    ],
+    "phone": [
+      "android",
+      "iphone",
+      "smartphone"
+    ]
+  },
+  "distinctAttribute": null
+}
--- a/dump/src/reader/snapshots/dumpreadertest__import_dump_v1-6.snap
+++ b/dump/src/reader/snapshots/dumpreadertest__import_dump_v1-6.snap
@ -0,0 +1,37 @@
+---
+source: dump/src/reader/mod.rs
+expression: products.settings().unwrap()
+---
+{
+  "displayedAttributes": [
+    "*"
+  ],
+  "searchableAttributes": [
+    "*"
+  ],
+  "filterableAttributes": [],
+  "rankingRules": [
+    "typo",
+    "words",
+    "proximity",
+    "attribute",
+    "exactness"
+  ],
+  "stopWords": [],
+  "synonyms": {
+    "android": [
+      "phone",
+      "smartphone"
+    ],
+    "iphone": [
+      "phone",
+      "smartphone"
+    ],
+    "phone": [
+      "android",
+      "iphone",
+      "smartphone"
+    ]
+  },
+  "distinctAttribute": null
+}
--- a/dump/src/reader/snapshots/dumpreadertest__import_dump_v1-8.snap
+++ b/dump/src/reader/snapshots/dumpreadertest__import_dump_v1-8.snap
@ -0,0 +1,27 @@
+---
+source: dump/src/reader/mod.rs
+expression: movies.settings().unwrap()
+---
+{
+  "displayedAttributes": [
+    "*"
+  ],
+  "searchableAttributes": [
+    "*"
+  ],
+  "filterableAttributes": [
+    "genres",
+    "id"
+  ],
+  "rankingRules": [
+    "typo",
+    "words",
+    "proximity",
+    "attribute",
+    "exactness",
+    "release_date:asc"
+  ],
+  "stopWords": [],
+  "synonyms": {},
+  "distinctAttribute": null
+}
--- a/dump/src/reader/v1/mod.rs
+++ b/dump/src/reader/v1/mod.rs
@ -1,173 +1,263 @@
 use std::{
-    convert::Infallible,
    fs::{self, File},
    io::{BufRead, BufReader},
-    path::Path,
+    path::{Path, PathBuf},
 };

 use tempfile::TempDir;
 use time::OffsetDateTime;

-use self::update::UpdateStatus;
-
-use super::{DumpReader, IndexReader};
-use crate::{Error, Result, Version};
+use super::{compat::v1_to_v2::CompatV1ToV2, Document};
+use crate::{IndexMetadata, Result, Version};
+use serde::Deserialize;

 pub mod settings;
 pub mod update;
-pub mod v1;

 pub struct V1Reader {
-    dump: TempDir,
-    metadata: v1::Metadata,
-    indexes: Vec<V1IndexReader>,
+    pub dump: TempDir,
+    pub db_version: String,
+    pub dump_version: crate::Version,
+    indexes: Vec<V1Index>,
 }

-struct V1IndexReader {
-    name: String,
+pub struct IndexUuid {
+    pub name: String,
+    pub uid: String,
+}
+pub type Task = self::update::UpdateStatus;
+
+struct V1Index {
+    metadata: IndexMetadataV1,
+    path: PathBuf,
+}
+
+impl V1Index {
+    pub fn new(path: PathBuf, metadata: Index) -> Self {
+        Self { metadata: metadata.into(), path }
+    }
+
+    pub fn open(&self) -> Result<V1IndexReader> {
+        V1IndexReader::new(&self.path, self.metadata.clone())
+    }
+
+    pub fn metadata(&self) -> &IndexMetadata {
+        &self.metadata.metadata
+    }
+}
+
+pub struct V1IndexReader {
+    metadata: IndexMetadataV1,
    documents: BufReader<File>,
    settings: BufReader<File>,
    updates: BufReader<File>,
-
-    current_update: Option<UpdateStatus>,
 }

 impl V1IndexReader {
-    pub fn new(name: String, path: &Path) -> Result<Self> {
-        let mut ret = V1IndexReader {
-            name,
+    pub fn new(path: &Path, metadata: IndexMetadataV1) -> Result<Self> {
+        Ok(V1IndexReader {
+            metadata,
            documents: BufReader::new(File::open(path.join("documents.jsonl"))?),
            settings: BufReader::new(File::open(path.join("settings.json"))?),
            updates: BufReader::new(File::open(path.join("updates.jsonl"))?),
-            current_update: None,
-        };
-        ret.next_update();
-
-        Ok(ret)
+        })
    }

-    pub fn next_update(&mut self) -> Result<Option<UpdateStatus>> {
-        let current_update = if let Some(line) = self.updates.lines().next() {
-            Some(serde_json::from_str(&line?)?)
-        } else {
-            None
-        };
+    pub fn metadata(&self) -> &IndexMetadata {
+        &self.metadata.metadata
+    }

-        Ok(std::mem::replace(&mut self.current_update, current_update))
+    pub fn documents(&mut self) -> Result<impl Iterator<Item = Result<Document>> + '_> {
+        Ok((&mut self.documents)
+            .lines()
+            .map(|line| -> Result<_> { Ok(serde_json::from_str(&line?)?) }))
+    }
+
+    pub fn settings(&mut self) -> Result<self::settings::Settings> {
+        Ok(serde_json::from_reader(&mut self.settings)?)
+    }
+
+    pub fn tasks(self) -> impl Iterator<Item = Result<Task>> {
+        self.updates.lines().map(|line| -> Result<_> { Ok(serde_json::from_str(&line?)?) })
    }
 }

 impl V1Reader {
    pub fn open(dump: TempDir) -> Result<Self> {
-        let mut meta_file = fs::read(dump.path().join("metadata.json"))?;
-        let metadata = serde_json::from_reader(&*meta_file)?;
+        let meta_file = fs::read(dump.path().join("metadata.json"))?;
+        let metadata: Metadata = serde_json::from_reader(&*meta_file)?;

        let mut indexes = Vec::new();

-        let entries = fs::read_dir(dump.path())?;
-        for entry in entries {
-            let entry = entry?;
-            if entry.file_type()?.is_dir() {
-                indexes.push(V1IndexReader::new(
-                    entry
-                        .file_name()
-                        .to_str()
-                        .ok_or(Error::BadIndexName)?
-                        .to_string(),
-                    &entry.path(),
-                )?);
-            }
+        for index in metadata.indexes.into_iter() {
+            let index_path = dump.path().join(&index.uid);
+            indexes.push(V1Index::new(index_path, index));
        }

        Ok(V1Reader {
            dump,
-            metadata,
            indexes,
+            db_version: metadata.db_version,
+            dump_version: metadata.dump_version,
        })
    }

-    fn next_update(&mut self) -> Result<Option<UpdateStatus>> {
-        if let Some((idx, _)) = self
-            .indexes
+    pub fn to_v2(self) -> CompatV1ToV2 {
+        CompatV1ToV2 { from: self }
+    }
+
+    pub fn index_uuid(&self) -> Vec<IndexUuid> {
+        self.indexes
            .iter()
-            .map(|index| index.current_update)
-            .enumerate()
-            .filter_map(|(idx, update)| update.map(|u| (idx, u)))
-            .min_by_key(|(_, update)| update.enqueued_at())
-        {
-            self.indexes[idx].next_update()
-        } else {
-            Ok(None)
+            .map(|index| IndexUuid {
+                name: index.metadata.name.to_owned(),
+                uid: index.metadata().uid.to_owned(),
+            })
+            .collect()
+    }
+
+    pub fn version(&self) -> Version {
+        Version::V1
+    }
+
+    pub fn date(&self) -> Option<OffsetDateTime> {
+        None
+    }
+
+    pub fn indexes(&self) -> Result<impl Iterator<Item = Result<V1IndexReader>> + '_> {
+        Ok(self.indexes.iter().map(|index| index.open()))
+    }
+}
+
+#[derive(Debug, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct Index {
+    pub name: String,
+    pub uid: String,
+    #[serde(with = "time::serde::rfc3339")]
+    created_at: OffsetDateTime,
+    #[serde(with = "time::serde::rfc3339")]
+    updated_at: OffsetDateTime,
+    pub primary_key: Option<String>,
+}
+
+#[derive(Clone)]
+pub struct IndexMetadataV1 {
+    pub name: String,
+    pub metadata: crate::IndexMetadata,
+}
+
+impl From<Index> for IndexMetadataV1 {
+    fn from(index: Index) -> Self {
+        IndexMetadataV1 {
+            name: index.name,
+            metadata: crate::IndexMetadata {
+                uid: index.uid,
+                primary_key: index.primary_key,
+                created_at: index.created_at,
+                updated_at: index.updated_at,
+            },
        }
    }
 }

-impl IndexReader for &V1IndexReader {
-    type Document = serde_json::Map<String, serde_json::Value>;
-    type Settings = settings::Settings;
-
-    fn name(&self) -> &str {
-        todo!()
-    }
-
-    fn documents(&self) -> Result<Box<dyn Iterator<Item = Result<Self::Document>>>> {
-        todo!()
-    }
-
-    fn settings(&self) -> Result<Self::Settings> {
-        todo!()
-    }
+#[derive(Debug, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct Metadata {
+    pub indexes: Vec<Index>,
+    pub db_version: String,
+    pub dump_version: crate::Version,
 }

-impl DumpReader for V1Reader {
-    type Document = serde_json::Map<String, serde_json::Value>;
-    type Settings = settings::Settings;
+#[cfg(test)]
+pub(crate) mod test {
+    use std::fs::File;
+    use std::io::BufReader;

-    type Task = update::UpdateStatus;
-    type UpdateFile = Infallible;
+    use flate2::bufread::GzDecoder;
+    use meili_snap::insta;
+    use tempfile::TempDir;

-    type Key = Infallible;
+    use super::*;

-    fn date(&self) -> Option<OffsetDateTime> {
-        None
-    }
+    #[test]
+    fn read_dump_v1() {
+        let dump = File::open("tests/assets/v1.dump").unwrap();
+        let dir = TempDir::new().unwrap();
+        let mut dump = BufReader::new(dump);
+        let gz = GzDecoder::new(&mut dump);
+        let mut archive = tar::Archive::new(gz);
+        archive.unpack(dir.path()).unwrap();

-    fn version(&self) -> Version {
-        Version::V1
-    }
+        let dump = V1Reader::open(dir).unwrap();

-    fn indexes(
-        &self,
-    ) -> Result<
-        Box<
-            dyn Iterator<
-                Item = Result<
-                    Box<
-                        dyn super::IndexReader<
-                            Document = Self::Document,
-                            Settings = Self::Settings,
-                        >,
-                    >,
-                >,
-            >,
-        >,
-    > {
-        Ok(Box::new(self.indexes.iter().map(|index| {
-            let index = Box::new(index)
-                as Box<dyn IndexReader<Document = Self::Document, Settings = Self::Settings>>;
-            Ok(index)
-        })))
-    }
+        // top level infos
+        assert_eq!(dump.date(), None);

-    fn tasks(&self) -> Box<dyn Iterator<Item = Result<(Self::Task, Option<Self::UpdateFile>)>>> {
-        Box::new(std::iter::from_fn(|| {
-            self.next_update()
-                .transpose()
-                .map(|result| result.map(|task| (task, None)))
-        }))
-    }
+        // indexes
+        let mut indexes = dump.indexes().unwrap().collect::<Result<Vec<_>>>().unwrap();

-    fn keys(&self) -> Box<dyn Iterator<Item = Result<Self::Key>>> {
-        Box::new(std::iter::empty())
+        let mut products = indexes.pop().unwrap();
+        let mut movies = indexes.pop().unwrap();
+        let mut dnd_spells = indexes.pop().unwrap();
+
+        assert!(indexes.is_empty());
+
+        // products
+        insta::assert_json_snapshot!(products.metadata(), { ".createdAt" => "[now]", ".updatedAt" => "[now]" }, @r###"
+        {
+          "uid": "products",
+          "primaryKey": "sku",
+          "createdAt": "[now]",
+          "updatedAt": "[now]"
+        }
+        "###);
+
+        insta::assert_json_snapshot!(products.settings().unwrap());
+        let documents = products.documents().unwrap().collect::<Result<Vec<_>>>().unwrap();
+        assert_eq!(documents.len(), 10);
+        meili_snap::snapshot_hash!(format!("{:#?}", documents), @"b01c8371aea4c7171af0d4d846a2bdca");
+
+        // products tasks
+        let tasks = products.tasks().collect::<Result<Vec<_>>>().unwrap();
+        meili_snap::snapshot_hash!(meili_snap::json_string!(tasks), @"91de507f206ad21964584021932ba7a7");
+
+        // movies
+        insta::assert_json_snapshot!(movies.metadata(), { ".createdAt" => "[now]", ".updatedAt" => "[now]" }, @r###"
+        {
+          "uid": "movies",
+          "primaryKey": "id",
+          "createdAt": "[now]",
+          "updatedAt": "[now]"
+        }
+        "###);
+
+        insta::assert_json_snapshot!(movies.settings().unwrap());
+        let documents = movies.documents().unwrap().collect::<Result<Vec<_>>>().unwrap();
+        assert_eq!(documents.len(), 10);
+        meili_snap::snapshot_hash!(format!("{:#?}", documents), @"b63dbed5bbc059f3e32bc471ae699bf5");
+
+        // movies tasks
+        let tasks = movies.tasks().collect::<Result<Vec<_>>>().unwrap();
+        meili_snap::snapshot_hash!(meili_snap::json_string!(tasks), @"55eef4de2bef7e84c5ce0bee47488f56");
+
+        // spells
+        insta::assert_json_snapshot!(dnd_spells.metadata(), { ".createdAt" => "[now]", ".updatedAt" => "[now]" }, @r###"
+        {
+          "uid": "dnd_spells",
+          "primaryKey": "index",
+          "createdAt": "[now]",
+          "updatedAt": "[now]"
+        }
+        "###);
+
+        insta::assert_json_snapshot!(dnd_spells.settings().unwrap());
+        let documents = dnd_spells.documents().unwrap().collect::<Result<Vec<_>>>().unwrap();
+        assert_eq!(documents.len(), 10);
+        meili_snap::snapshot_hash!(format!("{:#?}", documents), @"aa24c0cfc733d66c396237ad44263bed");
+
+        // spells tasks
+        let tasks = dnd_spells.tasks().collect::<Result<Vec<_>>>().unwrap();
+        meili_snap::snapshot_hash!(meili_snap::json_string!(tasks), @"836dd7d64d5ad20ad901c44b1b161a4c");
    }
 }
--- a/dump/src/reader/v1/settings.rs
+++ b/dump/src/reader/v1/settings.rs
@ -1,6 +1,9 @@
 use std::collections::{BTreeMap, BTreeSet};
 use std::result::Result as StdResult;
+use std::str::FromStr;

+use once_cell::sync::Lazy;
+use regex::Regex;
 use serde::{Deserialize, Deserializer, Serialize};

 #[derive(Default, Clone, Serialize, Deserialize, Debug)]
@ -53,6 +56,34 @@ pub enum RankingRule {
    Desc(String),
 }

+static ASC_DESC_REGEX: Lazy<Regex> =
+    Lazy::new(|| Regex::new(r#"(asc|desc)\(([\w_-]+)\)"#).unwrap());
+
+impl FromStr for RankingRule {
+    type Err = ();
+
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
+        Ok(match s {
+            "typo" => Self::Typo,
+            "words" => Self::Words,
+            "proximity" => Self::Proximity,
+            "attribute" => Self::Attribute,
+            "wordsPosition" => Self::WordsPosition,
+            "exactness" => Self::Exactness,
+            text => {
+                let caps = ASC_DESC_REGEX.captures(text).ok_or(())?;
+                let order = caps.get(1).unwrap().as_str();
+                let field_name = caps.get(2).unwrap().as_str();
+                match order {
+                    "asc" => Self::Asc(field_name.to_string()),
+                    "desc" => Self::Desc(field_name.to_string()),
+                    _ => return Err(()),
+                }
+            }
+        })
+    }
+}
+
 // Any value that is present is considered Some value, including null.
 fn deserialize_some<'de, T, D>(deserializer: D) -> StdResult<Option<T>, D::Error>
 where
--- a/dump/src/reader/v1/snapshots/dumpreaderv1testread_dump_v1-10.snap
+++ b/dump/src/reader/v1/snapshots/dumpreaderv1testread_dump_v1-10.snap
@ -0,0 +1,24 @@
+---
+source: dump/src/reader/v1/mod.rs
+expression: dnd_spells.settings().unwrap()
+---
+{
+  "rankingRules": [
+    "typo",
+    "words",
+    "proximity",
+    "attribute",
+    "wordsPosition",
+    "exactness"
+  ],
+  "distinctAttribute": null,
+  "searchableAttributes": [
+    "*"
+  ],
+  "displayedAttributes": [
+    "*"
+  ],
+  "stopWords": [],
+  "synonyms": {},
+  "attributesForFaceting": []
+}
--- a/dump/src/reader/v1/snapshots/dumpreaderv1testread_dump_v1-12.snap
+++ b/dump/src/reader/v1/snapshots/dumpreaderv1testread_dump_v1-12.snap
@ -0,0 +1,24 @@
+---
+source: dump/src/reader/v1/mod.rs
+expression: dnd_spells.settings().unwrap()
+---
+{
+  "rankingRules": [
+    "typo",
+    "words",
+    "proximity",
+    "attribute",
+    "wordsPosition",
+    "exactness"
+  ],
+  "distinctAttribute": null,
+  "searchableAttributes": [
+    "*"
+  ],
+  "displayedAttributes": [
+    "*"
+  ],
+  "stopWords": [],
+  "synonyms": {},
+  "attributesForFaceting": []
+}
--- a/dump/src/reader/v1/snapshots/dumpreaderv1testread_dump_v1-2.snap
+++ b/dump/src/reader/v1/snapshots/dumpreaderv1testread_dump_v1-2.snap
@ -0,0 +1,38 @@
+---
+source: dump/src/reader/v1/mod.rs
+expression: products.settings().unwrap()
+---
+{
+  "rankingRules": [
+    "typo",
+    "words",
+    "proximity",
+    "attribute",
+    "wordsPosition",
+    "exactness"
+  ],
+  "distinctAttribute": null,
+  "searchableAttributes": [
+    "*"
+  ],
+  "displayedAttributes": [
+    "*"
+  ],
+  "stopWords": [],
+  "synonyms": {
+    "android": [
+      "phone",
+      "smartphone"
+    ],
+    "iphone": [
+      "phone",
+      "smartphone"
+    ],
+    "phone": [
+      "android",
+      "iphone",
+      "smartphone"
+    ]
+  },
+  "attributesForFaceting": []
+}
--- a/dump/src/reader/v1/snapshots/dumpreaderv1testread_dump_v1-5.snap
+++ b/dump/src/reader/v1/snapshots/dumpreaderv1testread_dump_v1-5.snap
@ -0,0 +1,28 @@
+---
+source: dump/src/reader/v1/mod.rs
+expression: movies.settings().unwrap()
+---
+{
+  "rankingRules": [
+    "typo",
+    "words",
+    "proximity",
+    "attribute",
+    "wordsPosition",
+    "exactness",
+    "asc(release_date)"
+  ],
+  "distinctAttribute": null,
+  "searchableAttributes": [
+    "*"
+  ],
+  "displayedAttributes": [
+    "*"
+  ],
+  "stopWords": [],
+  "synonyms": {},
+  "attributesForFaceting": [
+    "id",
+    "genres"
+  ]
+}
--- a/dump/src/reader/v1/snapshots/dumpreaderv1testread_dump_v1-6.snap
+++ b/dump/src/reader/v1/snapshots/dumpreaderv1testread_dump_v1-6.snap
@ -0,0 +1,28 @@
+---
+source: dump/src/reader/v1/mod.rs
+expression: movies.settings().unwrap()
+---
+{
+  "rankingRules": [
+    "typo",
+    "words",
+    "proximity",
+    "attribute",
+    "wordsPosition",
+    "exactness",
+    "asc(release_date)"
+  ],
+  "distinctAttribute": null,
+  "searchableAttributes": [
+    "*"
+  ],
+  "displayedAttributes": [
+    "*"
+  ],
+  "stopWords": [],
+  "synonyms": {},
+  "attributesForFaceting": [
+    "id",
+    "genres"
+  ]
+}
--- a/dump/src/reader/v1/snapshots/dumpreaderv1testread_dump_v1-7.snap
+++ b/dump/src/reader/v1/snapshots/dumpreaderv1testread_dump_v1-7.snap
@ -0,0 +1,28 @@
+---
+source: dump/src/reader/v1/mod.rs
+expression: movies.settings().unwrap()
+---
+{
+  "rankingRules": [
+    "typo",
+    "words",
+    "proximity",
+    "attribute",
+    "wordsPosition",
+    "exactness",
+    "asc(release_date)"
+  ],
+  "distinctAttribute": null,
+  "searchableAttributes": [
+    "*"
+  ],
+  "displayedAttributes": [
+    "*"
+  ],
+  "stopWords": [],
+  "synonyms": {},
+  "attributesForFaceting": [
+    "id",
+    "genres"
+  ]
+}
--- a/dump/src/reader/v1/snapshots/dumpreaderv1testread_dump_v1-8.snap
+++ b/dump/src/reader/v1/snapshots/dumpreaderv1testread_dump_v1-8.snap
@ -0,0 +1,24 @@
+---
+source: dump/src/reader/v1/mod.rs
+expression: dnd_spells.settings().unwrap()
+---
+{
+  "rankingRules": [
+    "typo",
+    "words",
+    "proximity",
+    "attribute",
+    "wordsPosition",
+    "exactness"
+  ],
+  "distinctAttribute": null,
+  "searchableAttributes": [
+    "*"
+  ],
+  "displayedAttributes": [
+    "*"
+  ],
+  "stopWords": [],
+  "synonyms": {},
+  "attributesForFaceting": []
+}
--- a/dump/src/reader/v1/update.rs
+++ b/dump/src/reader/v1/update.rs
@ -1,54 +1,8 @@
 use serde::{Deserialize, Serialize};
-use serde_json::Value;
 use time::OffsetDateTime;

 use super::settings::SettingsUpdate;

-#[derive(Debug, Clone, Serialize, Deserialize)]
-pub struct Update {
-    data: UpdateData,
-    #[serde(with = "time::serde::rfc3339")]
-    enqueued_at: OffsetDateTime,
-}
-
-#[derive(Debug, Clone, Serialize, Deserialize)]
-pub enum UpdateData {
-    ClearAll,
-    Customs(Vec<u8>),
-    // (primary key, documents)
-    DocumentsAddition {
-        primary_key: Option<String>,
-        documents: Vec<serde_json::Map<String, Value>>,
-    },
-    DocumentsPartial {
-        primary_key: Option<String>,
-        documents: Vec<serde_json::Map<String, Value>>,
-    },
-    DocumentsDeletion(Vec<String>),
-    Settings(Box<SettingsUpdate>),
-}
-
-impl UpdateData {
-    pub fn update_type(&self) -> UpdateType {
-        match self {
-            UpdateData::ClearAll => UpdateType::ClearAll,
-            UpdateData::Customs(_) => UpdateType::Customs,
-            UpdateData::DocumentsAddition { documents, .. } => UpdateType::DocumentsAddition {
-                number: documents.len(),
-            },
-            UpdateData::DocumentsPartial { documents, .. } => UpdateType::DocumentsPartial {
-                number: documents.len(),
-            },
-            UpdateData::DocumentsDeletion(deletion) => UpdateType::DocumentsDeletion {
-                number: deletion.len(),
-            },
-            UpdateData::Settings(update) => UpdateType::Settings {
-                settings: update.clone(),
-            },
-        }
-    }
-}
-
 #[derive(Debug, Clone, Serialize, Deserialize)]
 #[serde(tag = "name")]
 pub enum UpdateType {
--- a/dump/src/reader/v1/v1.rs
+++ b/dump/src/reader/v1/v1.rs
@ -1,22 +0,0 @@
-use serde::Deserialize;
-use time::OffsetDateTime;
-
-#[derive(Debug, Deserialize)]
-#[serde(rename_all = "camelCase")]
-pub struct Index {
-    pub name: String,
-    pub uid: String,
-    #[serde(with = "time::serde::rfc3339")]
-    created_at: OffsetDateTime,
-    #[serde(with = "time::serde::rfc3339")]
-    updated_at: OffsetDateTime,
-    pub primary_key: Option<String>,
-}
-
-#[derive(Debug, Deserialize)]
-#[serde(rename_all = "camelCase")]
-pub struct Metadata {
-    indexes: Vec<Index>,
-    db_version: String,
-    dump_version: crate::Version,
-}
--- a/dump/src/reader/v2/settings.rs
+++ b/dump/src/reader/v2/settings.rs
@ -1,4 +1,5 @@
 use std::collections::{BTreeMap, BTreeSet};
+use std::fmt::Display;
 use std::marker::PhantomData;
 use std::str::FromStr;

@ -174,3 +175,17 @@ impl FromStr for Criterion {
        }
    }
 }
+
+impl Display for Criterion {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            Criterion::Words => write!(f, "words"),
+            Criterion::Typo => write!(f, "typo"),
+            Criterion::Proximity => write!(f, "proximity"),
+            Criterion::Attribute => write!(f, "attribute"),
+            Criterion::Exactness => write!(f, "exactness"),
+            Criterion::Asc(field_name) => write!(f, "asc({})", field_name),
+            Criterion::Desc(field_name) => write!(f, "desc({})", field_name),
+        }
+    }
+}
--- a/dump/tests/assets/v1.dump
+++ b/dump/tests/assets/v1.dump
--- a/meilisearch-http/tests/dumps/mod.rs
+++ b/meilisearch-http/tests/dumps/mod.rs
@ -9,19 +9,189 @@ use crate::common::{default_settings, GetAllDocumentsOptions, Server};
 // all the following test are ignored on windows. See #2364
 #[actix_rt::test]
 #[cfg_attr(target_os = "windows", ignore)]
-async fn import_dump_v1() {
+async fn import_dump_v1_movie_raw() {
+    let temp = tempfile::tempdir().unwrap();
+    let path = GetDump::MoviesRawV1.path();
+    let options = Opt { import_dump: Some(path), ..default_settings(temp.path()) };
+    let server = Server::new_with_options(options).await.unwrap();
+
+    let (indexes, code) = server.list_indexes(None, None).await;
+    assert_eq!(code, 200);
+
+    assert_eq!(indexes["results"].as_array().unwrap().len(), 1);
+    assert_eq!(indexes["results"][0]["uid"], json!("indexUID"));
+    assert_eq!(indexes["results"][0]["primaryKey"], json!("id"));
+
+    let index = server.index("indexUID");
+
+    let (stats, code) = index.stats().await;
+    assert_eq!(code, 200);
+    assert_eq!(
+        stats,
+        json!({ "numberOfDocuments": 53, "isIndexing": false, "fieldDistribution": {"genres": 53, "id": 53, "overview": 53, "poster": 53, "release_date": 53, "title": 53 }})
+    );
+
+    let (settings, code) = index.settings().await;
+    assert_eq!(code, 200);
+    assert_eq!(
+        settings,
+        json!({"displayedAttributes": ["*"], "searchableAttributes": ["*"], "filterableAttributes": [], "sortableAttributes": [], "rankingRules": ["typo", "words", "proximity", "attribute", "exactness"], "stopWords": [], "synonyms": {}, "distinctAttribute": null, "typoTolerance": {"enabled": true, "minWordSizeForTypos": {"oneTypo": 5, "twoTypos": 9}, "disableOnWords": [], "disableOnAttributes": [] }, "faceting": { "maxValuesPerFacet": 100 }, "pagination": { "maxTotalHits": 1000 } })
+    );
+
+    let (tasks, code) = index.list_tasks().await;
+    assert_eq!(code, 200);
+    assert_eq!(
+        tasks,
+        json!({ "results": [{"uid": 0, "indexUid": "indexUID", "status": "succeeded", "type": "documentAdditionOrUpdate", "canceledBy": null, "details": { "receivedDocuments": 0, "indexedDocuments": 31968 }, "error": null, "duration": "PT9.317060500S", "enqueuedAt": "2021-09-08T09:08:45.153219Z", "startedAt": "2021-09-08T09:08:45.3961665Z", "finishedAt": "2021-09-08T09:08:54.713227Z" }], "limit": 20, "from": 0, "next": null })
+    );
+
+    // finally we're just going to check that we can still get a few documents by id
+    let (document, code) = index.get_document(100, None).await;
+    assert_eq!(code, 200);
+    assert_eq!(
+        document,
+        json!({"id": 100, "title": "Lock, Stock and Two Smoking Barrels", "overview": "A card shark and his unwillingly-enlisted friends need to make a lot of cash quick after losing a sketchy poker match. To do this they decide to pull a heist on a small-time gang who happen to be operating out of the flat next door.", "genres": ["Comedy", "Crime"], "poster": "https://image.tmdb.org/t/p/w500/8kSerJrhrJWKLk1LViesGcnrUPE.jpg", "release_date": 889056000})
+    );
+
+    let (document, code) = index.get_document(500, None).await;
+    assert_eq!(code, 200);
+    assert_eq!(
+        document,
+        json!({"id": 500, "title": "Reservoir Dogs", "overview": "A botched robbery indicates a police informant, and the pressure mounts in the aftermath at a warehouse. Crime begets violence as the survivors -- veteran Mr. White, newcomer Mr. Orange, psychopathic parolee Mr. Blonde, bickering weasel Mr. Pink and Nice Guy Eddie -- unravel.", "genres": ["Crime", "Thriller"], "poster": "https://image.tmdb.org/t/p/w500/AjTtJNumZyUDz33VtMlF1K8JPsE.jpg", "release_date": 715392000})
+    );
+
+    let (document, code) = index.get_document(10006, None).await;
+    assert_eq!(code, 200);
+    assert_eq!(
+        document,
+        json!({"id": 10006, "title": "Wild Seven", "overview": "In this darkly karmic vision of Arizona, a man who breathes nothing but ill will begins a noxious domino effect as quickly as an uncontrollable virus kills. As he exits Arizona State Penn after twenty-one long years, Wilson has only one thing on the brain, leveling the score with career criminal, Mackey Willis.", "genres": ["Action", "Crime", "Drama"], "poster": "https://image.tmdb.org/t/p/w500/y114dTPoqn8k2Txps4P2tI95YCS.jpg", "release_date": 1136073600})
+    );
+}
+
+#[actix_rt::test]
+#[cfg_attr(target_os = "windows", ignore)]
+async fn import_dump_v1_movie_with_settings() {
    let temp = tempfile::tempdir().unwrap();

-    for path in [
-        GetDump::MoviesRawV1.path(),
-        GetDump::MoviesWithSettingsV1.path(),
-        GetDump::RubyGemsWithSettingsV1.path(),
-    ] {
-        let options = Opt { import_dump: Some(path), ..default_settings(temp.path()) };
-        let error = Server::new_with_options(options).await.map(drop).unwrap_err();
+    let path = GetDump::MoviesWithSettingsV1.path();

-        assert_eq!(error.to_string(), "The version 1 of the dumps is not supported anymore. You can re-export your dump from a version between 0.21 and 0.24, or start fresh from a version 0.25 onwards.");
-    }
+    let options = Opt { import_dump: Some(path), ..default_settings(temp.path()) };
+    let server = Server::new_with_options(options).await.unwrap();
+
+    let (indexes, code) = server.list_indexes(None, None).await;
+    assert_eq!(code, 200);
+
+    assert_eq!(indexes["results"].as_array().unwrap().len(), 1);
+    assert_eq!(indexes["results"][0]["uid"], json!("indexUID"));
+    assert_eq!(indexes["results"][0]["primaryKey"], json!("id"));
+
+    let index = server.index("indexUID");
+
+    let (stats, code) = index.stats().await;
+    assert_eq!(code, 200);
+    assert_eq!(
+        stats,
+        json!({ "numberOfDocuments": 53, "isIndexing": false, "fieldDistribution": {"genres": 53, "id": 53, "overview": 53, "poster": 53, "release_date": 53, "title": 53 }})
+    );
+
+    let (settings, code) = index.settings().await;
+    assert_eq!(code, 200);
+    assert_eq!(
+        settings,
+        json!({ "displayedAttributes": ["genres", "id", "overview", "poster", "release_date", "title"], "searchableAttributes": ["title", "overview"], "filterableAttributes": ["genres"], "sortableAttributes": [], "rankingRules": ["typo", "words", "proximity", "attribute", "exactness"], "stopWords": ["of", "the"], "synonyms": {}, "distinctAttribute": null, "typoTolerance": {"enabled": true, "minWordSizeForTypos": { "oneTypo": 5, "twoTypos": 9 }, "disableOnWords": [], "disableOnAttributes": [] }, "faceting": { "maxValuesPerFacet": 100 }, "pagination": { "maxTotalHits": 1000 } })
+    );
+
+    let (tasks, code) = index.list_tasks().await;
+    assert_eq!(code, 200);
+    assert_eq!(
+        tasks,
+        json!({ "results": [{ "uid": 1, "indexUid": "indexUID", "status": "succeeded", "type": "settingsUpdate", "canceledBy": null, "details": { "displayedAttributes": ["genres", "id", "overview", "poster", "release_date", "title"], "searchableAttributes": ["title", "overview"], "filterableAttributes": ["genres"], "stopWords": ["of", "the"] }, "error": null, "duration": "PT7.288826907S", "enqueuedAt": "2021-09-08T09:34:40.882977Z", "startedAt": "2021-09-08T09:34:40.883073093Z", "finishedAt": "2021-09-08T09:34:48.1719Z"}, { "uid": 0, "indexUid": "indexUID", "status": "succeeded", "type": "documentAdditionOrUpdate", "canceledBy": null, "details": { "receivedDocuments": 0, "indexedDocuments": 31968 }, "error": null, "duration": "PT9.090735774S", "enqueuedAt": "2021-09-08T09:34:16.036101Z", "startedAt": "2021-09-08T09:34:16.261191226Z", "finishedAt": "2021-09-08T09:34:25.351927Z" }], "limit": 20, "from": 1, "next": null })
+    );
+
+    // finally we're just going to check that we can still get a few documents by id
+    let (document, code) = index.get_document(100, None).await;
+    assert_eq!(code, 200);
+    assert_eq!(
+        document,
+        json!({ "id": 100, "title": "Lock, Stock and Two Smoking Barrels", "genres": ["Comedy", "Crime"], "overview": "A card shark and his unwillingly-enlisted friends need to make a lot of cash quick after losing a sketchy poker match. To do this they decide to pull a heist on a small-time gang who happen to be operating out of the flat next door.", "poster": "https://image.tmdb.org/t/p/w500/8kSerJrhrJWKLk1LViesGcnrUPE.jpg", "release_date": 889056000 })
+    );
+
+    let (document, code) = index.get_document(500, None).await;
+    assert_eq!(code, 200);
+    assert_eq!(
+        document,
+        json!({ "id": 500, "title": "Reservoir Dogs", "genres": ["Crime", "Thriller"], "overview": "A botched robbery indicates a police informant, and the pressure mounts in the aftermath at a warehouse. Crime begets violence as the survivors -- veteran Mr. White, newcomer Mr. Orange, psychopathic parolee Mr. Blonde, bickering weasel Mr. Pink and Nice Guy Eddie -- unravel.", "poster": "https://image.tmdb.org/t/p/w500/AjTtJNumZyUDz33VtMlF1K8JPsE.jpg", "release_date": 715392000})
+    );
+
+    let (document, code) = index.get_document(10006, None).await;
+    assert_eq!(code, 200);
+    assert_eq!(
+        document,
+        json!({ "id": 10006, "title": "Wild Seven", "genres": ["Action", "Crime", "Drama"], "overview": "In this darkly karmic vision of Arizona, a man who breathes nothing but ill will begins a noxious domino effect as quickly as an uncontrollable virus kills. As he exits Arizona State Penn after twenty-one long years, Wilson has only one thing on the brain, leveling the score with career criminal, Mackey Willis.", "poster": "https://image.tmdb.org/t/p/w500/y114dTPoqn8k2Txps4P2tI95YCS.jpg", "release_date": 1136073600})
+    );
+}
+
+#[actix_rt::test]
+#[cfg_attr(target_os = "windows", ignore)]
+async fn import_dump_v1_rubygems_with_settings() {
+    let temp = tempfile::tempdir().unwrap();
+
+    let path = GetDump::RubyGemsWithSettingsV1.path();
+
+    let options = Opt { import_dump: Some(path), ..default_settings(temp.path()) };
+    let server = Server::new_with_options(options).await.unwrap();
+
+    let (indexes, code) = server.list_indexes(None, None).await;
+    assert_eq!(code, 200);
+
+    assert_eq!(indexes["results"].as_array().unwrap().len(), 1);
+    assert_eq!(indexes["results"][0]["uid"], json!("rubygems"));
+    assert_eq!(indexes["results"][0]["primaryKey"], json!("id"));
+
+    let index = server.index("rubygems");
+
+    let (stats, code) = index.stats().await;
+    assert_eq!(code, 200);
+    assert_eq!(
+        stats,
+        json!({ "numberOfDocuments": 53, "isIndexing": false, "fieldDistribution": {"description": 53, "id": 53, "name": 53, "summary": 53, "total_downloads": 53, "version": 53 }})
+    );
+
+    let (settings, code) = index.settings().await;
+    assert_eq!(code, 200);
+    assert_eq!(
+        settings,
+        json!({"displayedAttributes": ["description", "id", "name", "summary", "total_downloads", "version"], "searchableAttributes": ["name", "summary"], "filterableAttributes": ["version"], "sortableAttributes": [], "rankingRules": ["typo", "words", "fame:desc", "proximity", "attribute", "exactness", "total_downloads:desc"], "stopWords": [], "synonyms": {}, "distinctAttribute": null, "typoTolerance": {"enabled": true, "minWordSizeForTypos": {"oneTypo": 5, "twoTypos": 9}, "disableOnWords": [], "disableOnAttributes": [] }, "faceting": { "maxValuesPerFacet": 100 }, "pagination": { "maxTotalHits": 1000 }})
+    );
+
+    let (tasks, code) = index.list_tasks().await;
+    assert_eq!(code, 200);
+    assert_eq!(
+        tasks["results"][0],
+        json!({"uid": 92, "indexUid": "rubygems", "status": "succeeded", "type": "documentAdditionOrUpdate", "canceledBy": null, "details": {"receivedDocuments": 0, "indexedDocuments": 1042}, "error": null, "duration": "PT1.487793839S", "enqueuedAt": "2021-09-08T09:27:01.465296Z", "startedAt": "2021-09-08T09:28:44.882177161Z", "finishedAt": "2021-09-08T09:28:46.369971Z"})
+    );
+
+    // finally we're just going to check that we can still get a few documents by id
+    let (document, code) = index.get_document(188040, None).await;
+    assert_eq!(code, 200);
+    assert_eq!(
+        document,
+        json!({ "name": "meilisearch", "summary": "An easy-to-use ruby client for Meilisearch API", "description": "An easy-to-use ruby client for Meilisearch API. See https://github.com/meilisearch/MeiliSearch", "id": "188040", "version": "0.15.2", "total_downloads": "7465"})
+    );
+
+    let (document, code) = index.get_document(191940, None).await;
+    assert_eq!(code, 200);
+    assert_eq!(
+        document,
+        json!({ "name": "doggo", "summary": "RSpec 3 formatter - documentation, with progress indication", "description": "Similar to \"rspec -f d\", but also indicates progress by showing the current test number and total test count on each line.", "id": "191940", "version": "1.1.0", "total_downloads": "9394"})
+    );
+
+    let (document, code) = index.get_document(159227, None).await;
+    assert_eq!(code, 200);
+    assert_eq!(
+        document,
+        json!({ "name": "vortex-of-agony", "summary": "You dont need to use nodejs or go, just install this plugin. It will crash your application at random", "description": "You dont need to use nodejs or go, just install this plugin. It will crash your application at random", "id": "159227", "version": "0.1.0", "total_downloads": "1007"})
+    );
 }

 #[actix_rt::test]