Initial working version for a prompt for email

crates/meilisearch/src/analytics/segment_analytics.rs

@@ -277,6 +277,7 @@ impl Infos {
             log_level,
             indexer_options,
             config_file_path,
+            contact_email: _,
             no_analytics: _,
         } = options;
 

crates/meilisearch/src/main.rs

@@ -21,6 +21,7 @@ use meilisearch::{
 };
 use meilisearch_auth::{generate_master_key, AuthController, MASTER_KEY_MIN_SIZE};
 use termcolor::{Color, ColorChoice, ColorSpec, StandardStream, WriteColor};
+use tokio::io::{AsyncBufReadExt, BufReader};
 use tracing::level_filters::LevelFilter;
 use tracing_subscriber::layer::SubscriberExt as _;
 use tracing_subscriber::Layer;
@@ -89,10 +90,16 @@ async fn main() -> anyhow::Result<()> {
 }
 
 async fn try_main() -> anyhow::Result<()> {
-    let (opt, config_read_from) = Opt::try_build()?;
+    let (mut opt, config_read_from) = Opt::try_build()?;
 
     std::panic::set_hook(Box::new(on_panic));
 
+    opt.contact_email = match opt.contact_email.as_ref().map(|email| email.as_deref()) {
+        Some(Some("false")) | None => prompt_for_contact_email().await.map(Some)?,
+        Some(Some(email)) => Some(Some(email.to_string())),
+        Some(None) => None,
+    };
+
     anyhow::ensure!(
         !(cfg!(windows) && opt.experimental_reduce_indexing_memory_usage),
         "The `experimental-reduce-indexing-memory-usage` flag is not supported on Windows"
@@ -139,6 +146,27 @@ async fn try_main() -> anyhow::Result<()> {
     Ok(())
 }
 
+/// Prompt the user about the contact email for support and news.
+/// It only displays the prompt if the input is an interactive terminal.
+async fn prompt_for_contact_email() -> anyhow::Result<Option<String>> {
+    let stdin = tokio::io::stdin();
+
+    if !stdin.is_terminal() {
+        return Ok(None);
+    }
+
+    println!("Would you mind providing your contact email for support and news?");
+    println!("We will use it to contact you with news only.");
+    print!("contact email> ");
+    std::io::stdout().flush()?;
+
+    let mut email = String::new();
+    let mut stdin = BufReader::new(stdin);
+    let _ = stdin.read_line(&mut email).await?;
+
+    Ok(Some(email.trim().to_string()))
+}
+
 async fn run_http(
     index_scheduler: Arc<IndexScheduler>,
     auth_controller: Arc<AuthController>,

crates/meilisearch/src/option.rs

@@ -66,6 +66,7 @@ const MEILI_EXPERIMENTAL_LIMIT_BATCHED_TASKS_TOTAL_SIZE: &str =
 const MEILI_EXPERIMENTAL_EMBEDDING_CACHE_ENTRIES: &str =
     "MEILI_EXPERIMENTAL_EMBEDDING_CACHE_ENTRIES";
 const MEILI_EXPERIMENTAL_NO_SNAPSHOT_COMPACTION: &str = "MEILI_EXPERIMENTAL_NO_SNAPSHOT_COMPACTION";
+const MEILI_CONTACT_EMAIL: &str = "MEILI_CONTACT_EMAIL";
 const DEFAULT_CONFIG_FILE_PATH: &str = "./config.toml";
 const DEFAULT_DB_PATH: &str = "./data.ms";
 const DEFAULT_HTTP_ADDR: &str = "localhost:7700";
@@ -347,6 +348,10 @@ pub struct Opt {
     #[serde(default)]
     pub log_level: LogLevel,
 
+    /// Sets the email address to contact for support and news.
+    #[clap(long, env = MEILI_CONTACT_EMAIL)]
+    pub contact_email: Option<Option<String>>,
+
     /// Experimental contains filter feature. For more information,
     /// see: <https://github.com/orgs/meilisearch/discussions/763>
     ///
@@ -556,6 +561,7 @@ impl Opt {
             ignore_dump_if_db_exists: _,
             config_file_path: _,
             no_analytics,
+            contact_email,
             experimental_contains_filter,
             experimental_enable_metrics,
             experimental_search_queue_size,
@@ -588,6 +594,10 @@ impl Opt {
         }
 
         export_to_env_if_not_present(MEILI_NO_ANALYTICS, no_analytics.to_string());
+        export_to_env_if_not_present(
+            MEILI_CONTACT_EMAIL,
+            contact_email.flatten().unwrap_or_else(|| "false".to_string()),
+        );
         export_to_env_if_not_present(
             MEILI_HTTP_PAYLOAD_SIZE_LIMIT,
             http_payload_size_limit.to_string(),