72 lines
2.5 KiB
Bash
72 lines
2.5 KiB
Bash
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#!/usr/bin/env bash
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# In summary, this script does the following.
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# 1. Generate full changelog using Git the tag history.
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# 2. Generates a list of contributors in YAML format. The output is a top level
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# list. Each entry in this list looks like: "- ['author', 'commits url']"
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# 3. Commit changes to generated files (if any).
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# positional args
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# 1. github repo slug (username/repo)
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# 2. output path
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function changelog() {
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echo "generating changelog from git tag history..."
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local tag_url_fmt="https://github.com/$1/releases/tag/%(tag)"
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local tag_body_fmt="## [v%(tag)]($tag_url_fmt)%0a%0a**%(creatordate:format:%A, %-d %B %Y)**%0a%0a%(contents:body)"
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{
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printf "# Changelog\n\n"
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printf "All notable changes to this project will be documented in this file.\n\n"
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git tag --sort="-creatordate" --format="$tag_body_fmt" --list
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} > "$2"
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sed -i -E "s@(#)([0-9]+)@[\1\2](https://github.com/$1/issues/\2)@g" "$2"
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}
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# positional args
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# 1. github repo slug (username/repo)
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# 2. output path
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function contributors_yaml() {
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echo "generating contributor list from git commit history..."
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{
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git log --pretty="- %an <%ae>%n- %cn <%ce>"
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git log --pretty="%b" | grep "Co-authored-by:"
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} > "$2"
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local commits_url_fmt="https://github.com/$1/commits?author=\2"
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sed -i -e 's/Co-authored-by:/-/g' -e 's/\r$//' "$2"
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sort -u -o "$2" "$2"
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sed -i -e '/noreply@github.com/d' -e '/hosted@weblate.org/d' -e '/\[bot\]/d' "$2"
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sed -i -E "s@- (.*) <(.*)>@- ['\1', '$commits_url_fmt']@g" "$2"
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}
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# positional args
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# @. paths to look for new changes
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function commit_changes() {
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git config --local user.email "noreply@github.com"
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git config --local user.name "GitHub"
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local author="github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>"
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if [ -n "$(git diff "$@")" ]; then
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echo "found new changes! committing..."
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git add "$@"
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git commit -m "chore(project): update docs" --author "$author"
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else
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echo "no new changes to commit..."
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fi
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}
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if [ -z "$GITHUB_REPOSITORY" ] || [ -z "$CHANGELOG_PATH" ] || [ -z "$CONTRIBUTORS_YAML_PATH" ]; then
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printf "missing at least one of the following required env variables!\n\n"
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printf "GITHUB_REPOSITORY\tgithub repo slug (username/repo)\n"
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printf "CHANGELOG_PATH\t\tfile path for the generate changelog\n"
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printf "CONTRIBUTORS_YAML_PATH\tfile path for the generate contributors list\n"
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exit 1
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fi
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trap exit INT
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changelog "$GITHUB_REPOSITORY" "$CHANGELOG_PATH"
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contributors_yaml "$GITHUB_REPOSITORY" "$CONTRIBUTORS_YAML_PATH"
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commit_changes "$CHANGELOG_PATH" "$CONTRIBUTORS_YAML_PATH"
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