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#!/usr/bin/env bash
# This script generates a release note.
# It prints information about breaking-changes first and the rest.
# The content is mostly based on `git log --oneline --since 202X-YY-ZZ`.
# Usage: the script takes one command-line argument that will be used on '-since' option of git command.
# As an example, you can run a script with a following command, and it will print commit titles between today and 2024-07-01.
# ```
# docs/scripts/release-note.sh 2024-07-01
# ```
# This script is supposed to work on all Windows based shell systems including WSL and git-bash.
# If you make any modifications, please test them, because CI doesn't test this script.
verbose=true
$verbose && echo "Reminder: PLEASE make sure your local repo is up-to-date before running the script." >&2
gh=""
for candidate in "$(which gh.exe)" "/mnt/c/Program Files/GitHub CLI/gh.exe" "/c/Program Files/GitHub CLI/gh.exe" "/cygdrive/c/Program Files/GitHub CLI/gh.exe"; do
if [ -x "$candidate" ]; then
gh="$candidate"
break
fi
done
if [ "x$gh" = "x" ] || ! [ -x "$gh" ]; then
echo "File not found: gh.exe"
echo "gh.exe can be downloaded from https://cli.github.com"
exit 1
fi
$verbose && echo "gh.exe is found from: $gh" >&2
if [ "x$1" = "x" ]; then
echo "This script requires 'since' information for git-log command."
echo "Usage: $0 2024-07-30"
exit 1
fi
since="$1"
commits="$(git log --oneline --since $since)"
commitsCount="$(echo "$commits" | wc -l)"
echo "=== Breaking changes ==="
breakingChanges=""
for i in $(seq $commitsCount); do
line="$(echo "$commits" | head -$i | tail -1)"
# Get PR number from the git commit title
pr="$(echo "$line" | grep '#[1-9][0-9][0-9][0-9][0-9]*' | sed 's|.* (\#\([1-9][0-9][0-9][0-9][0-9]*\))|\1|')"
[ "x$pr" = "x" ] && continue
# Check if the PR is marked as a breaking change
if "$gh" issue view $pr --json labels | grep -q 'pr: breaking change'; then
breakingChanges+="$line"
fi
done
if [ "x$breakingChanges" = "x" ]; then
echo "No breaking changes"
else
echo "$breakingChanges"
fi
echo ""
echo "=== All changes for this release ==="
for i in $(seq $commitsCount); do
line="$(echo "$commits" | head -$i | tail -1)"
result="$line"
for dummy in 1; do
# Get PR number from the git commit title
pr="$(echo "$line" | grep '#[1-9][0-9][0-9][0-9][0-9]*' | sed 's|.* (\#\([1-9][0-9][0-9][0-9][0-9]*\))|\1|')"
[ "x$pr" = "x" ] && break
# Mark breaking changes with "[BREAKING]"
if "$gh" issue view $pr --json labels | grep -q 'pr: breaking change'; then
result="[BREAKING] $line"
fi
done
echo "$result"
done
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