mirror of
https://github.com/github/spec-kit.git
synced 2026-07-08 07:04:44 +08:00
Support namespaced git feature branch templates (#3293)
* test: cover namespaced git branch templates
Assisted-by: Codex (model: GPT-5, autonomous)
* feat: support namespaced git branch templates
Assisted-by: Codex (model: GPT-5, autonomous)
* test: cover git branch template edge cases
Assisted-by: Codex (model: GPT-5, autonomous)
* fix: harden git branch template parsing
Assisted-by: Codex (model: GPT-5, autonomous)
* fix: address git branch template review feedback
Address Copilot review feedback for branch_prefix help text, namespaced GIT_BRANCH_NAME fallback behavior, final-segment validation docs, and Bash UTF-8 byte reporting.
Assisted-by: Codex (model: GPT-5, autonomous)
* fix: reject slug-scoped branch templates
Reject branch templates that place {slug} before {number}, because that makes namespace scanning depend on the generated feature slug and can reset numbering per feature name.
Assisted-by: Codex (model: GPT-5, autonomous)
* fix: ignore malformed timestamp refs when numbering
Align branch-number scanning with feature-branch validation so malformed timestamp-looking refs do not inflate sequential numbering. Also updates the stale git-common comment called out in review.
Assisted-by: Codex (model: GPT-5, autonomous)
This commit is contained in:
Pascal THUET
@@ -75,6 +75,10 @@ while [ $i -le $# ]; do
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echo "Environment variables:"
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echo " GIT_BRANCH_NAME Use this exact branch name, bypassing all prefix/suffix generation"
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echo ""
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echo "Configuration:"
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echo " branch_template Optional git-config.yml template with {author}, {app}, {number}, {slug}"
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echo " branch_prefix Optional shorthand namespace expanded before {number}-{slug}"
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echo ""
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echo "Examples:"
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echo " $0 'Add user authentication system' --short-name 'user-auth'"
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echo " $0 'Implement OAuth2 integration for API' --number 5"
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@@ -127,16 +131,28 @@ get_highest_from_specs() {
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# Function to get highest number from git branches
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get_highest_from_branches() {
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git branch -a 2>/dev/null | sed -E 's/^[+*][[:space:]]+//; s/^[[:space:]]+//; s|^remotes/[^/]*/||' | _extract_highest_number
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local scope_prefix="${1:-}"
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git branch -a 2>/dev/null | sed -E 's/^[+*][[:space:]]+//; s/^[[:space:]]+//; s|^remotes/[^/]*/||' | _extract_highest_number "$scope_prefix"
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}
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# Extract the highest sequential feature number from a list of ref names (one per line).
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_extract_highest_number() {
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local scope_prefix="${1:-}"
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local highest=0
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while IFS= read -r name; do
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[ -z "$name" ] && continue
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if echo "$name" | grep -Eq '^[0-9]{3,}-' && ! echo "$name" | grep -Eq '^[0-9]{8}-[0-9]{6}-'; then
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number=$(echo "$name" | grep -Eo '^[0-9]+' || echo "0")
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if [ -n "$scope_prefix" ]; then
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case "$name" in
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"$scope_prefix"*) name="${name#"$scope_prefix"}" ;;
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*) continue ;;
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esac
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fi
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name="${name##*/}"
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if echo "$name" | grep -Eq '^[0-9]{3,}-' \
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&& ! echo "$name" | grep -Eq '^[0-9]{8}-[0-9]{6}-' \
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&& ! echo "$name" | grep -Eq '^[0-9]{7}-[0-9]{6}-' \
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&& ! echo "$name" | grep -Eq '^[0-9]{7,8}-[0-9]{6}$'; then
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number=$(echo "$name" | grep -Eo '^[0-9]{3,}-' | sed -E 's/-$//' || echo "0")
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number=$((10#$number))
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if [ "$number" -gt "$highest" ]; then
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highest=$number
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@@ -148,11 +164,12 @@ _extract_highest_number() {
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# Function to get highest number from remote branches without fetching (side-effect-free)
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get_highest_from_remote_refs() {
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local scope_prefix="${1:-}"
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local highest=0
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for remote in $(git remote 2>/dev/null); do
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local remote_highest
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remote_highest=$(GIT_TERMINAL_PROMPT=0 git ls-remote --heads "$remote" 2>/dev/null | sed 's|.*refs/heads/||' | _extract_highest_number)
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remote_highest=$(GIT_TERMINAL_PROMPT=0 git ls-remote --heads "$remote" 2>/dev/null | sed 's|.*refs/heads/||' | _extract_highest_number "$scope_prefix")
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if [ "$remote_highest" -gt "$highest" ]; then
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highest=$remote_highest
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fi
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@@ -165,16 +182,17 @@ get_highest_from_remote_refs() {
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check_existing_branches() {
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local specs_dir="$1"
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local skip_fetch="${2:-false}"
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local scope_prefix="${3:-}"
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if [ "$skip_fetch" = true ]; then
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local highest_remote=$(get_highest_from_remote_refs)
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local highest_branch=$(get_highest_from_branches)
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local highest_remote=$(get_highest_from_remote_refs "$scope_prefix")
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local highest_branch=$(get_highest_from_branches "$scope_prefix")
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if [ "$highest_remote" -gt "$highest_branch" ]; then
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highest_branch=$highest_remote
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fi
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else
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git fetch --all --prune >/dev/null 2>&1 || true
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local highest_branch=$(get_highest_from_branches)
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local highest_branch=$(get_highest_from_branches "$scope_prefix")
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fi
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local highest_spec=$(get_highest_from_specs "$specs_dir")
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@@ -273,6 +291,152 @@ fi
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cd "$REPO_ROOT"
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SPECS_DIR="$REPO_ROOT/specs"
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CONFIG_FILE="$REPO_ROOT/.specify/extensions/git/git-config.yml"
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read_git_config_value() {
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local key="$1"
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[ -f "$CONFIG_FILE" ] || return 0
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grep -E "^[[:space:]]*${key}:" "$CONFIG_FILE" 2>/dev/null \
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| head -n 1 \
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| sed -E "s/^[[:space:]]*${key}:[[:space:]]*//" \
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| sed -E 's/[[:space:]]+#.*$//' \
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| sed -E 's/^[[:space:]]+|[[:space:]]+$//g' \
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| sed -E 's/^"//; s/"$//' \
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| sed -E "s/^'//; s/'$//"
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}
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branch_token() {
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local value="$1"
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local fallback="$2"
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local cleaned
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cleaned=$(clean_branch_name "$value")
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if [ -n "$cleaned" ]; then
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printf '%s\n' "$cleaned"
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else
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printf '%s\n' "$fallback"
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fi
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}
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get_author_token() {
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local author=""
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if command -v git >/dev/null 2>&1; then
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author=$(git config user.name 2>/dev/null || true)
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if [ -z "$author" ]; then
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author=$(git config user.email 2>/dev/null | sed 's/@.*$//' || true)
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fi
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fi
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if [ -z "$author" ]; then
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author="${USER:-unknown}"
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fi
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branch_token "$author" "unknown"
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}
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get_app_token() {
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branch_token "$(basename "$REPO_ROOT")" "app"
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}
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resolve_branch_template() {
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local template
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local prefix
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template=$(read_git_config_value "branch_template")
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if [ -n "$template" ]; then
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printf '%s\n' "$template"
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return
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fi
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prefix=$(read_git_config_value "branch_prefix")
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if [ -z "$prefix" ]; then
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printf '%s\n' ""
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return
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fi
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case "$prefix" in
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*/) printf '%s%s\n' "$prefix" "{number}-{slug}" ;;
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*) printf '%s/%s\n' "$prefix" "{number}-{slug}" ;;
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esac
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}
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render_branch_template() {
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local template="$1"
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local feature_num="$2"
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local branch_suffix="$3"
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local rendered="$template"
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rendered=${rendered//\{author\}/$AUTHOR_TOKEN}
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rendered=${rendered//\{app\}/$APP_TOKEN}
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rendered=${rendered//\{number\}/$feature_num}
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rendered=${rendered//\{slug\}/$branch_suffix}
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printf '%s\n' "$rendered"
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}
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validate_branch_template() {
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local template="$1"
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[ -n "$template" ] || return 0
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local feature_segment
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feature_segment="${template##*/}"
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case "$template" in
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*"{number}"*) ;;
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*)
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>&2 echo "Error: branch_template must include the {number} token so generated branches remain valid feature branches."
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exit 1
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;;
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esac
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case "$template" in
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*"{slug}"*"{number}"*)
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>&2 echo "Error: branch_template must not place {slug} before {number}; use {slug} only in the final feature segment."
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exit 1
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;;
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esac
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case "$feature_segment" in
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"{number}-"*) ;;
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*)
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>&2 echo "Error: branch_template must put {number}- at the start of the final path segment so generated branches remain valid feature branches."
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exit 1
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;;
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esac
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}
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build_branch_name() {
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local feature_num="$1"
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local branch_suffix="$2"
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if [ -n "$BRANCH_TEMPLATE" ]; then
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render_branch_template "$BRANCH_TEMPLATE" "$feature_num" "$branch_suffix"
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else
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printf '%s-%s\n' "$feature_num" "$branch_suffix"
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fi
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}
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branch_scope_prefix() {
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local template="$1"
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local prefix="$template"
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[ -n "$prefix" ] || return 0
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case "$prefix" in
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*"{number}"*) prefix="${prefix%%\{number\}*}" ;;
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*"{slug}"*) prefix="${prefix%%\{slug\}*}" ;;
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*) return 0 ;;
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esac
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render_branch_template "$prefix" "" "$BRANCH_SUFFIX"
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}
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extract_feature_num_from_branch() {
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local branch_name="$1"
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local feature_segment="${branch_name##*/}"
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local match
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match=$(printf '%s\n' "$feature_segment" | grep -Eo '^[0-9]{8}-[0-9]{6}-' | head -n 1 || true)
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if [ -n "$match" ]; then
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printf '%s\n' "$match" | sed -E 's/-$//'
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return
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fi
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match=$(printf '%s\n' "$feature_segment" | grep -Eo '^[0-9]+-' | head -n 1 || true)
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if [ -n "$match" ]; then
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printf '%s\n' "$match" | sed -E 's/-$//'
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return
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fi
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printf '%s\n' "$branch_name"
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}
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AUTHOR_TOKEN=$(get_author_token)
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APP_TOKEN=$(get_app_token)
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BRANCH_TEMPLATE=$(resolve_branch_template)
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validate_branch_template "$BRANCH_TEMPLATE"
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# Function to generate branch name with stop word filtering
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generate_branch_name() {
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@@ -318,18 +482,8 @@ generate_branch_name() {
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# Check for GIT_BRANCH_NAME env var override (exact branch name, no prefix/suffix)
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if [ -n "${GIT_BRANCH_NAME:-}" ]; then
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BRANCH_NAME="$GIT_BRANCH_NAME"
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# Extract FEATURE_NUM from the branch name if it starts with a numeric prefix
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# Check timestamp pattern first (YYYYMMDD-HHMMSS-) since it also matches the simpler ^[0-9]+ pattern
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if echo "$BRANCH_NAME" | grep -Eq '^[0-9]{8}-[0-9]{6}-'; then
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FEATURE_NUM=$(echo "$BRANCH_NAME" | grep -Eo '^[0-9]{8}-[0-9]{6}')
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BRANCH_SUFFIX="${BRANCH_NAME#${FEATURE_NUM}-}"
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elif echo "$BRANCH_NAME" | grep -Eq '^[0-9]+-'; then
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FEATURE_NUM=$(echo "$BRANCH_NAME" | grep -Eo '^[0-9]+')
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BRANCH_SUFFIX="${BRANCH_NAME#${FEATURE_NUM}-}"
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else
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FEATURE_NUM="$BRANCH_NAME"
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BRANCH_SUFFIX="$BRANCH_NAME"
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fi
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FEATURE_NUM=$(extract_feature_num_from_branch "$BRANCH_NAME")
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BRANCH_SUFFIX="$BRANCH_NAME"
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else
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# Generate branch name
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if [ -n "$SHORT_NAME" ]; then
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@@ -347,16 +501,17 @@ else
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# Determine branch prefix
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if [ "$USE_TIMESTAMP" = true ]; then
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FEATURE_NUM=$(date +%Y%m%d-%H%M%S)
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BRANCH_NAME="${FEATURE_NUM}-${BRANCH_SUFFIX}"
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BRANCH_NAME=$(build_branch_name "$FEATURE_NUM" "$BRANCH_SUFFIX")
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else
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BRANCH_SCOPE_PREFIX=$(branch_scope_prefix "$BRANCH_TEMPLATE")
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if [ -z "$BRANCH_NUMBER" ]; then
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if [ "$DRY_RUN" = true ] && [ "$HAS_GIT" = true ]; then
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BRANCH_NUMBER=$(check_existing_branches "$SPECS_DIR" true)
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BRANCH_NUMBER=$(check_existing_branches "$SPECS_DIR" true "$BRANCH_SCOPE_PREFIX")
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elif [ "$DRY_RUN" = true ]; then
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HIGHEST=$(get_highest_from_specs "$SPECS_DIR")
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BRANCH_NUMBER=$((HIGHEST + 1))
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elif [ "$HAS_GIT" = true ]; then
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BRANCH_NUMBER=$(check_existing_branches "$SPECS_DIR")
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BRANCH_NUMBER=$(check_existing_branches "$SPECS_DIR" false "$BRANCH_SCOPE_PREFIX")
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else
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HIGHEST=$(get_highest_from_specs "$SPECS_DIR")
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BRANCH_NUMBER=$((HIGHEST + 1))
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@@ -364,7 +519,7 @@ else
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fi
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FEATURE_NUM=$(printf "%03d" "$((10#$BRANCH_NUMBER))")
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BRANCH_NAME="${FEATURE_NUM}-${BRANCH_SUFFIX}"
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BRANCH_NAME=$(build_branch_name "$FEATURE_NUM" "$BRANCH_SUFFIX")
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fi
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fi
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@@ -376,18 +531,23 @@ if [ -n "${GIT_BRANCH_NAME:-}" ] && [ "$BRANCH_BYTE_LEN" -gt $MAX_BRANCH_LENGTH
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>&2 echo "Error: GIT_BRANCH_NAME must be 244 bytes or fewer in UTF-8. Provided value is ${BRANCH_BYTE_LEN} bytes."
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exit 1
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elif [ "$BRANCH_BYTE_LEN" -gt $MAX_BRANCH_LENGTH ]; then
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PREFIX_LENGTH=$(( ${#FEATURE_NUM} + 1 ))
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MAX_SUFFIX_LENGTH=$((MAX_BRANCH_LENGTH - PREFIX_LENGTH))
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TRUNCATED_SUFFIX=$(echo "$BRANCH_SUFFIX" | cut -c1-$MAX_SUFFIX_LENGTH)
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TRUNCATED_SUFFIX=$(echo "$TRUNCATED_SUFFIX" | sed 's/-$//')
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ORIGINAL_BRANCH_NAME="$BRANCH_NAME"
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BRANCH_NAME="${FEATURE_NUM}-${TRUNCATED_SUFFIX}"
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TRUNCATED_SUFFIX="$BRANCH_SUFFIX"
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while [ "$(_byte_length "$BRANCH_NAME")" -gt "$MAX_BRANCH_LENGTH" ] && [ -n "$TRUNCATED_SUFFIX" ]; do
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TRUNCATED_SUFFIX="${TRUNCATED_SUFFIX%?}"
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TRUNCATED_SUFFIX="${TRUNCATED_SUFFIX%-}"
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BRANCH_NAME=$(build_branch_name "$FEATURE_NUM" "$TRUNCATED_SUFFIX")
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done
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if [ "$(_byte_length "$BRANCH_NAME")" -gt "$MAX_BRANCH_LENGTH" ]; then
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>&2 echo "Error: Branch template prefix exceeds GitHub's 244-byte branch name limit."
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exit 1
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fi
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>&2 echo "[specify] Warning: Branch name exceeded GitHub's 244-byte limit"
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>&2 echo "[specify] Original: $ORIGINAL_BRANCH_NAME (${#ORIGINAL_BRANCH_NAME} bytes)"
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>&2 echo "[specify] Truncated to: $BRANCH_NAME (${#BRANCH_NAME} bytes)"
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ORIGINAL_BRANCH_BYTE_LEN=$(_byte_length "$ORIGINAL_BRANCH_NAME")
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TRUNCATED_BRANCH_BYTE_LEN=$(_byte_length "$BRANCH_NAME")
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>&2 echo "[specify] Original: $ORIGINAL_BRANCH_NAME (${ORIGINAL_BRANCH_BYTE_LEN} bytes)"
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>&2 echo "[specify] Truncated to: $BRANCH_NAME (${TRUNCATED_BRANCH_BYTE_LEN} bytes)"
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fi
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if [ "$DRY_RUN" != true ]; then
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@@ -23,8 +23,9 @@ spec_kit_effective_branch_name() {
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}
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# Validate that a branch name matches the expected feature branch pattern.
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# Accepts sequential (###-* with >=3 digits) or timestamp (YYYYMMDD-HHMMSS-*) formats.
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# Logic aligned with scripts/bash/common.sh check_feature_branch after effective-name normalization.
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# Accepts sequential (###-* with >=3 digits) or timestamp (YYYYMMDD-HHMMSS-*) formats,
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# either at the start of the branch or after path-style namespace prefixes.
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# Logic aligned with the git extension's PowerShell Test-FeatureBranch twin.
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check_feature_branch() {
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local raw="$1"
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local has_git_repo="$2"
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@@ -37,16 +38,17 @@ check_feature_branch() {
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local branch
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branch=$(spec_kit_effective_branch_name "$raw")
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local feature_segment="${branch##*/}"
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# Accept sequential prefix (3+ digits) but exclude malformed timestamps
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# Malformed: 7-or-8 digit date + 6-digit time with no trailing slug (e.g. "2026031-143022" or "20260319-143022")
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local is_sequential=false
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if [[ "$branch" =~ ^[0-9]{3,}- ]] && [[ ! "$branch" =~ ^[0-9]{7}-[0-9]{6}- ]] && [[ ! "$branch" =~ ^[0-9]{7,8}-[0-9]{6}$ ]]; then
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if [[ "$feature_segment" =~ ^[0-9]{3,}- ]] && [[ ! "$feature_segment" =~ ^[0-9]{7}-[0-9]{6}- ]] && [[ ! "$feature_segment" =~ ^[0-9]{7,8}-[0-9]{6}$ ]]; then
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is_sequential=true
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fi
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if [[ "$is_sequential" != "true" ]] && [[ ! "$branch" =~ ^[0-9]{8}-[0-9]{6}- ]]; then
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if [[ "$is_sequential" != "true" ]] && [[ ! "$feature_segment" =~ ^[0-9]{8}-[0-9]{6}- ]]; then
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echo "ERROR: Not on a feature branch. Current branch: $raw" >&2
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echo "Feature branches should be named like: 001-feature-name, 1234-feature-name, or 20260319-143022-feature-name" >&2
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echo "Feature branches should be named like: 001-feature-name, 1234-feature-name, 20260319-143022-feature-name, or <prefix>/001-feature-name" >&2
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return 1
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fi
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