mirror of https://github.com/coder/coder.git
179 lines
5.9 KiB
Bash
Executable File
179 lines
5.9 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Usage: source ./check_commit_metadata.sh <from revision> <to revision>
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# Usage: ./check_commit_metadata.sh <from revision> <to revision>
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#
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# Example: ./check_commit_metadata.sh v0.13.1 971e3678
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#
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# When sourced, this script will populate the COMMIT_METADATA_* variables
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# with the commit metadata for each commit in the revision range.
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#
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# Because this script does some expensive lookups via the GitHub API, its
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# results will be cached in the environment and restored if this script is
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# sourced a second time with the same arguments.
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set -euo pipefail
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# shellcheck source=scripts/lib.sh
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source "$(dirname "$(dirname "${BASH_SOURCE[0]}")")/lib.sh"
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from_ref=${1:-}
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to_ref=${2:-}
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if [[ -z $from_ref ]]; then
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error "No from_ref specified"
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fi
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if [[ -z $to_ref ]]; then
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error "No to_ref specified"
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fi
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range="$from_ref..$to_ref"
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# Check dependencies.
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dependencies gh
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COMMIT_METADATA_BREAKING=0
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declare -A COMMIT_METADATA_TITLE COMMIT_METADATA_CATEGORY COMMIT_METADATA_AUTHORS
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# This environment variable can be set to 1 to ignore missing commit metadata,
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# useful for dry-runs.
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ignore_missing_metadata=${CODER_IGNORE_MISSING_COMMIT_METADATA:-0}
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main() {
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# Match a commit prefix pattern, e.g. feat: or feat(site):.
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prefix_pattern="^([a-z]+)(\([^)]+\))?:"
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# If a commit contains this title prefix or the source PR contains the
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# label, patch releases will not be allowed.
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# This regex matches both `feat!:` and `feat(site)!:`.
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breaking_title="^[a-z]+(\([^)]+\))?!:"
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breaking_label=release/breaking
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breaking_category=breaking
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experimental_label=release/experimental
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experimental_category=experimental
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# Security related changes are labeled `security`.
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security_label=security
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security_category=security
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# Get abbreviated and full commit hashes and titles for each commit.
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git_log_out="$(git log --no-merges --pretty=format:"%h %H %s" "$range")"
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mapfile -t commits <<<"$git_log_out"
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# If this is a tag, use rev-list to find the commit it points to.
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from_commit=$(git rev-list -n 1 "$from_ref")
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# Get the committer date of the commit so that we can list PRs merged.
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from_commit_date=$(git show --no-patch --date=short --format=%cd "$from_commit")
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# Get the labels for all PRs merged since the last release, this is
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# inexact based on date, so a few PRs part of the previous release may
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# be included.
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#
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# Example output:
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#
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# 27386d49d08455b6f8fbf2c18f38244d03fda892 author:hello labels:label:security
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# d9f2aaf3b430d8b6f3d5f24032ed6357adaab1f1 author:world
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# fd54512858c906e66f04b0744d8715c2e0de97e6 author:bye labels:label:stale label:enhancement
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pr_list_out="$(
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gh pr list \
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--base main \
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--state merged \
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--limit 10000 \
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--search "merged:>=$from_commit_date" \
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--json mergeCommit,labels,author \
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--jq '.[] | "\( .mergeCommit.oid ) author:\( .author.login ) labels:\(["label:\( .labels[].name )"] | join(" "))"'
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)"
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declare -A authors labels
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if [[ -n $pr_list_out ]]; then
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mapfile -t pr_metadata_raw <<<"$pr_list_out"
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for entry in "${pr_metadata_raw[@]}"; do
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commit_sha_long=${entry%% *}
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commit_author=${entry#* author:}
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commit_author=${commit_author%% *}
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authors[$commit_sha_long]=$commit_author
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all_labels=${entry#* labels:}
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labels[$commit_sha_long]=$all_labels
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done
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fi
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for commit in "${commits[@]}"; do
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mapfile -d ' ' -t parts <<<"$commit"
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commit_sha_short=${parts[0]}
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commit_sha_long=${parts[1]}
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commit_prefix=${parts[2]}
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# Safety-check, guarantee all commits had their metadata fetched.
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if [[ ! -v authors[$commit_sha_long] ]] || [[ ! -v labels[$commit_sha_long] ]]; then
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if [[ $ignore_missing_metadata != 1 ]]; then
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error "Metadata missing for commit $commit_sha_short"
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else
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log "WARNING: Metadata missing for commit $commit_sha_short"
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fi
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fi
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# Store the commit title for later use.
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title=${parts[*]:2}
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title=${title%$'\n'}
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COMMIT_METADATA_TITLE[$commit_sha_short]=$title
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if [[ -v authors[$commit_sha_long] ]]; then
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COMMIT_METADATA_AUTHORS[$commit_sha_short]="@${authors[$commit_sha_long]}"
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fi
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# First, check the title for breaking changes. This avoids doing a
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# GH API request if there's a match.
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if [[ $commit_prefix =~ $breaking_title ]] || [[ ${labels[$commit_sha_long]:-} = *"label:$breaking_label"* ]]; then
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COMMIT_METADATA_CATEGORY[$commit_sha_short]=$breaking_category
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COMMIT_METADATA_BREAKING=1
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continue
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elif [[ ${labels[$commit_sha_long]:-} = *"label:$security_label"* ]]; then
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COMMIT_METADATA_CATEGORY[$commit_sha_short]=$security_category
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continue
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elif [[ ${labels[$commit_sha_long]:-} = *"label:$experimental_label"* ]]; then
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COMMIT_METADATA_CATEGORY[$commit_sha_short]=$experimental_category
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continue
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fi
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if [[ $commit_prefix =~ $prefix_pattern ]]; then
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commit_prefix=${BASH_REMATCH[1]}
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fi
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case $commit_prefix in
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# From: https://github.com/commitizen/conventional-commit-types
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feat | fix | docs | style | refactor | perf | test | build | ci | chore | revert)
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COMMIT_METADATA_CATEGORY[$commit_sha_short]=$commit_prefix
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;;
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*)
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COMMIT_METADATA_CATEGORY[$commit_sha_short]=other
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;;
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esac
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done
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}
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declare_print_commit_metadata() {
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declare -p COMMIT_METADATA_BREAKING COMMIT_METADATA_TITLE COMMIT_METADATA_CATEGORY COMMIT_METADATA_AUTHORS
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}
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export_commit_metadata() {
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_COMMIT_METADATA_CACHE="${range}:$(declare_print_commit_metadata)"
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export _COMMIT_METADATA_CACHE COMMIT_METADATA_BREAKING COMMIT_METADATA_TITLE COMMIT_METADATA_CATEGORY COMMIT_METADATA_AUTHORS
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}
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# _COMMIT_METADATA_CACHE is used to cache the results of this script in
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# the environment because bash arrays are not passed on to subscripts.
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if [[ ${_COMMIT_METADATA_CACHE:-} == "${range}:"* ]]; then
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eval "${_COMMIT_METADATA_CACHE#*:}"
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else
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if [[ $ignore_missing_metadata == 1 ]]; then
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log "WARNING: Ignoring missing commit metadata, breaking changes may be missed."
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fi
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main
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fi
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export_commit_metadata
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# Make it easier to debug this script by printing the associative array
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# when it's not sourced.
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if ! issourced; then
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declare_print_commit_metadata
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fi
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