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diff_l10n_branches.py
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diff_l10n_branches.py
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#!/usr/bin/env python
import os
import subprocess
import jinja2
import click
DEVNULL = open(os.devnull, 'w')
ISSUE_TEMPLATE = """\
# This is a Bug Report
## Problem
Outdated files in the {{ r_commit }} branch.
### {{ files_to_be_modified | count }} files to be modified
{% for m_file in files_to_be_modified -%}
1. [ ] {{ m_file.filepath }} {{ m_file.shortstat }}
{% endfor %}
### {{ files_to_be_renamed | count }} files to be renamed
{% for r_file in files_to_be_renamed -%}
1. [ ] {{ r_file.diff_status_letter }} {{ r_file.src_filepath }} -> {{ r_file.dest_filepath }}
{% endfor %}
### {{ files_to_be_deleted | count }} files to be deleted
{% for d_file in files_to_be_deleted -%}
1. [ ] {{ d_file }}
{% endfor %}
## Proposed Solution
{% if files_to_be_modified %}
Use `git diff` to check what is changed in the upstream. And apply the upstream changes manually
to the `{{ l10n_lang_path }}` of `{{ r_commit }}` branch.
For example:
```
# checkout `{{ r_commit }}`
...
# check what is updated in the upstream
git diff {{ l_commit }} {{ r_commit }} -- {{ files_to_be_modified.0.filepath }}
# apply changes to {{ l10n_lang_path }}
vi {{ files_to_be_modified.0.filepath | replace(src_lang_path, l10n_lang_path) }}
...
# commit and push
...
# make PR to `{{ r_commit }}`
```
{% endif %}
## Pages to Update
"""
files_to_be_deleted = []
files_to_be_renamed = []
files_to_be_modified = []
def git_diff(filepath, l_commit, r_commit, shortstat=False):
cmd = ["git", "diff", l_commit, r_commit, "--", filepath]
if shortstat:
cmd = ["git", "diff", l_commit, r_commit, "--shortstat", "--", filepath]
return subprocess.check_output(cmd).decode("UTF-8").strip()
def git_exists(path, filepath):
cmd = ["git", "cat-file", "-e", "{}:{}".format(path, filepath)]
ret_code = subprocess.call(cmd, stderr=DEVNULL)
return ret_code == 0
def process_diff_status(diff_status, l_commit, r_commit, src_lang_path,
l10n_lang_path):
status_letter = diff_status[0]
filepath = diff_status[1]
if git_exists(r_commit, filepath.replace(src_lang_path, l10n_lang_path)):
if status_letter == 'D':
files_to_be_deleted.append(filepath)
elif status_letter.startswith('R'):
replaced = {"diff_status_letter": diff_status[0],
"src_filepath": diff_status[1],
"dest_filepath": diff_status[2]}
files_to_be_renamed.append(replaced)
elif status_letter == 'M':
modified = {"filepath": filepath,
"shortstat": git_diff(filepath, l_commit, r_commit,
shortstat=True),
"diff": git_diff(filepath, l_commit, r_commit)}
files_to_be_modified.append(modified)
def git_diff_name_status(l_commit, r_commit, src_lang_path, l10n_lang_path):
cmd = ["git", "diff", l_commit, r_commit, "--name-status", "--",
src_lang_path]
name_status_output = subprocess.check_output(cmd).strip()
for line in name_status_output.decode('utf-8').splitlines():
diff_status = line.split()
process_diff_status(diff_status, l_commit, r_commit, src_lang_path,
l10n_lang_path)
@click.command()
@click.argument("l10n-lang")
@click.argument("l-commit")
@click.argument("r-commit")
@click.option("--src-lang", help="Source language", default="en")
def main(l10n_lang, src_lang, l_commit, r_commit):
"""
This script generates a report of outdated contents in `content/<l10n-lang>`
directory by comparing two l10n team milestone branches.
L10n team owners can open a GitHub issue with the report generated by this
script when they start a new team milestone.
ex: `scripts/diff_l10n_branches.py ko dev-1.15-ko.3 dev-1.15-ko.4`
"""
l10n_lang_path = "content/" + l10n_lang
src_lang_path = "content/" + src_lang
git_diff_name_status(l_commit, r_commit, src_lang_path,
l10n_lang_path)
issue_template = jinja2.Template(ISSUE_TEMPLATE)
ret = issue_template.render(l_commit=l_commit, r_commit=r_commit,
src_lang_path=src_lang_path,
l10n_lang_path=l10n_lang_path,
files_to_be_deleted=files_to_be_deleted,
files_to_be_modified=files_to_be_modified,
files_to_be_renamed=files_to_be_renamed)
print(ret)
if __name__ == "__main__":
main()