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wtfpython/irrelevant/json_generator.py
Satwik Kansal 45bec627d1 Add todos
2019-05-06 23:49:57 +05:30

280 lines
8.8 KiB
Python

"""
An inefficient monolithic piece of code that'll generate jupyter notebook
from the projects main README.
TODO
- CLI arguments for running this thing.
- Add it to prepush hook
- Use templates?
"""
import json
import pprint
fname = "/Users/300041709/code/self/wtfpython/README.md"
examples = []
# The globals
current_example = 1
sequence_num = 1
current_section_name = ""
STATEMENT_PREFIXES = ["...", ">>> ", "$ "]
def generate_code_block(statements, output):
global sequence_num
result = {
"type": "code",
"sequence_num": sequence_num,
"statements": statements,
"output": output
}
sequence_num += 1
return result
def generate_markdown_block(lines):
global sequence_num
result = {
"type": "markdown",
"sequence_num": sequence_num,
"value": lines
}
sequence_num += 1
return result
def is_interactive_statement(line):
for prefix in STATEMENT_PREFIXES:
if line.startswith(prefix):
return True
return False
def parse_example_parts(lines, example_title_line):
parts = {
"build_up": [],
"explanation": []
}
content = []
statements_so_far = []
output_so_far = []
next_line = example_title_line
# store build_up till an H4 (explanation) is encountered
while not next_line.startswith("#### "):
# Watching out for the snippets
if next_line.startswith("```"):
# It's a snippet, whatever found until now is text
is_interactive = False
if content:
parts["build_up"].append(generate_markdown_block(content))
content = []
next_line = next(lines)
while not next_line.startswith("```"):
if is_interactive_statement(next_line):
is_interactive = True
if (output_so_far):
parts["build_up"].append(generate_code_block(statements_so_far, output_so_far))
statements_so_far, output_so_far = [], []
statements_so_far.append(next_line)
else:
# can be either output or normal code
if is_interactive:
output_so_far.append(next_line)
else:
statements_so_far.append(next_line)
next_line = next(lines)
# Snippet is over
parts["build_up"].append(generate_code_block(statements_so_far, output_so_far))
statements_so_far, output_so_far = [], []
next_line = next(lines)
else:
# It's a text, go on.
content.append(next_line)
next_line = next(lines)
# Explanation encountered, save any content till now (if any)
if content:
parts["build_up"].append(generate_markdown_block(content))
# Reset stuff
content = []
statements_so_far, output_so_far = [], []
# store lines again until --- or another H3 is encountered
while not (next_line.startswith("---") or
next_line.startswith("### ")):
if next_line.startswith("```"):
# It's a snippet, whatever found until now is text
is_interactive = False
if content:
parts["build_up"].append(generate_markdown_block(content))
content = []
next_line = next(lines)
while not next_line.startswith("```"):
if is_interactive_statement(next_line):
is_interactive = True
if (output_so_far):
parts["build_up"].append(generate_code_block(statements_so_far, output_so_far))
statements_so_far, output_so_far = [], []
statements_so_far.append(next_line)
else:
# can be either output or normal code
if is_interactive:
output_so_far.append(next_line)
else:
statements_so_far.append(next_line)
next_line = next(lines)
# Snippet is over
parts["build_up"].append(generate_code_block(statements_so_far, output_so_far))
statements_so_far, output_so_far = [], []
next_line = next(lines)
else:
# It's a text, go on.
content.append(next_line)
next_line = next(lines)
# All done
if content:
parts["explanation"].append(generate_markdown_block(content))
return next_line, parts
def remove_from_beginning(tokens, line):
for token in tokens:
if line.startswith(token):
line = line.replace(token, "")
return line
def inspect_and_sanitize_code_lines(lines):
tokens_to_remove = STATEMENT_PREFIXES
result = []
is_print_present = False
for line in lines:
line = remove_from_beginning(tokens_to_remove, line)
if line.startswith("print ") or line.startswith("print("):
is_print_present = True
result.append(line)
return is_print_present, result
def convert_to_cells(cell_contents):
cells = []
for stuff in cell_contents:
if stuff["type"] == "markdown":
# todo add metadata later
cells.append(
{
"cell_type": "markdown",
"metadata": {},
"source": stuff["value"]
}
)
elif stuff["type"] == "code":
is_print_present, sanitized_code = inspect_and_sanitize_code_lines(stuff["statements"])
if is_print_present:
cells.append(
{
"cell_type": "code",
"metadata": {
"collapsed": True
},
"execution_count": None,
"outputs": [{
"name": "stdout",
"output_type": "stream",
"text": stuff["output"]
}],
"source": sanitized_code
}
)
else:
cells.append(
{
"cell_type": "code",
"execution_count": None,
"metadata": {
"collapsed": True
},
"outputs": [{
"data": {
"text/plain": stuff["output"]
},
"output_type": "execute_result",
"metadata": {},
"execution_count": None
}],
"source": sanitized_code
}
)
return cells
def convert_to_notebook(parsed_json):
result = {
"cells": [],
"metadata": {},
"nbformat": 4,
"nbformat_minor": 2
}
for example in parsed_json:
parts = example["parts"]
build_up = parts.get("build_up")
explanation = parts.get("explanation")
notebook_path = "test.ipynb"
if(build_up):
result["cells"] += convert_to_cells(build_up)
if(explanation):
result["cells"] += convert_to_cells(explanation)
pprint.pprint(result, indent=2)
with open(notebook_path, "w") as f:
json.dump(result, f)
with open(fname, 'r+', encoding="utf-8") as f:
lines = iter(f.readlines())
line = next(lines)
result = []
try:
while True:
if line.startswith("## "):
# A section is encountered
current_section_name = line.replace("## ", "").strip()
section_text = []
line = next(lines)
# Until a new section is encountered
while not (line.startswith("## " )):
# check if it's a H3
if line.startswith("### "):
# An example is encountered
title = line.replace("### ", "")
example_details = {
"id": current_example,
"title": line.replace("### ", ""),
"section": current_section_name
}
line, example_details["parts"] = parse_example_parts(lines, line)
result.append(example_details)
current_example += 1
else:
section_text.append(line)
line = next(lines)
else:
line = next(lines)
except StopIteration:
pprint.pprint(result, indent=2)
convert_to_notebook(result)