create-new-feature.sh•7.23 kB
#!/usr/bin/env bash
set -e
JSON_MODE=false
SHORT_NAME=""
ARGS=()
i=1
while [ $i -le $# ]; do
arg="${!i}"
case "$arg" in
--json)
JSON_MODE=true
;;
--short-name)
if [ $((i + 1)) -gt $# ]; then
echo 'Error: --short-name requires a value' >&2
exit 1
fi
i=$((i + 1))
next_arg="${!i}"
# Check if the next argument is another option (starts with --)
if [[ "$next_arg" == --* ]]; then
echo 'Error: --short-name requires a value' >&2
exit 1
fi
SHORT_NAME="$next_arg"
;;
--help|-h)
echo "Usage: $0 [--json] [--short-name <name>] <feature_description>"
echo ""
echo "Options:"
echo " --json Output in JSON format"
echo " --short-name <name> Provide a custom short name (2-4 words) for the branch"
echo " --help, -h Show this help message"
echo ""
echo "Examples:"
echo " $0 'Add user authentication system' --short-name 'user-auth'"
echo " $0 'Implement OAuth2 integration for API'"
exit 0
;;
*)
ARGS+=("$arg")
;;
esac
i=$((i + 1))
done
FEATURE_DESCRIPTION="${ARGS[*]}"
if [ -z "$FEATURE_DESCRIPTION" ]; then
echo "Usage: $0 [--json] [--short-name <name>] <feature_description>" >&2
exit 1
fi
# Function to find the repository root by searching for existing project markers
find_repo_root() {
local dir="$1"
while [ "$dir" != "/" ]; do
if [ -d "$dir/.git" ] || [ -d "$dir/.specify" ]; then
echo "$dir"
return 0
fi
dir="$(dirname "$dir")"
done
return 1
}
# Resolve repository root. Prefer git information when available, but fall back
# to searching for repository markers so the workflow still functions in repositories that
# were initialised with --no-git.
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
if git rev-parse --show-toplevel >/dev/null 2>&1; then
REPO_ROOT=$(git rev-parse --show-toplevel)
HAS_GIT=true
else
REPO_ROOT="$(find_repo_root "$SCRIPT_DIR")"
if [ -z "$REPO_ROOT" ]; then
echo "Error: Could not determine repository root. Please run this script from within the repository." >&2
exit 1
fi
HAS_GIT=false
fi
cd "$REPO_ROOT"
SPECS_DIR="$REPO_ROOT/specs"
mkdir -p "$SPECS_DIR"
HIGHEST=0
if [ -d "$SPECS_DIR" ]; then
for dir in "$SPECS_DIR"/*; do
[ -d "$dir" ] || continue
dirname=$(basename "$dir")
number=$(echo "$dirname" | grep -o '^[0-9]\+' || echo "0")
number=$((10#$number))
if [ "$number" -gt "$HIGHEST" ]; then HIGHEST=$number; fi
done
fi
NEXT=$((HIGHEST + 1))
FEATURE_NUM=$(printf "%03d" "$NEXT")
# Function to generate branch name with stop word filtering and length filtering
generate_branch_name() {
local description="$1"
# Common stop words to filter out
local stop_words="^(i|a|an|the|to|for|of|in|on|at|by|with|from|is|are|was|were|be|been|being|have|has|had|do|does|did|will|would|should|could|can|may|might|must|shall|this|that|these|those|my|your|our|their|want|need|add|get|set)$"
# Convert to lowercase and split into words
local clean_name=$(echo "$description" | tr '[:upper:]' '[:lower:]' | sed 's/[^a-z0-9]/ /g')
# Filter words: remove stop words and words shorter than 3 chars (unless they're uppercase acronyms in original)
local meaningful_words=()
for word in $clean_name; do
# Skip empty words
[ -z "$word" ] && continue
# Keep words that are NOT stop words AND (length >= 3 OR are potential acronyms)
if ! echo "$word" | grep -qiE "$stop_words"; then
if [ ${#word} -ge 3 ]; then
meaningful_words+=("$word")
elif echo "$description" | grep -q "\b${word^^}\b"; then
# Keep short words if they appear as uppercase in original (likely acronyms)
meaningful_words+=("$word")
fi
fi
done
# If we have meaningful words, use first 3-4 of them
if [ ${#meaningful_words[@]} -gt 0 ]; then
local max_words=3
if [ ${#meaningful_words[@]} -eq 4 ]; then max_words=4; fi
local result=""
local count=0
for word in "${meaningful_words[@]}"; do
if [ $count -ge $max_words ]; then break; fi
if [ -n "$result" ]; then result="$result-"; fi
result="$result$word"
count=$((count + 1))
done
echo "$result"
else
# Fallback to original logic if no meaningful words found
echo "$description" | tr '[:upper:]' '[:lower:]' | sed 's/[^a-z0-9]/-/g' | sed 's/-\+/-/g' | sed 's/^-//' | sed 's/-$//' | tr '-' '\n' | grep -v '^$' | head -3 | tr '\n' '-' | sed 's/-$//'
fi
}
# Generate branch name
if [ -n "$SHORT_NAME" ]; then
# Use provided short name, just clean it up
BRANCH_SUFFIX=$(echo "$SHORT_NAME" | tr '[:upper:]' '[:lower:]' | sed 's/[^a-z0-9]/-/g' | sed 's/-\+/-/g' | sed 's/^-//' | sed 's/-$//')
else
# Generate from description with smart filtering
BRANCH_SUFFIX=$(generate_branch_name "$FEATURE_DESCRIPTION")
fi
BRANCH_NAME="${FEATURE_NUM}-${BRANCH_SUFFIX}"
# GitHub enforces a 244-byte limit on branch names
# Validate and truncate if necessary
MAX_BRANCH_LENGTH=244
if [ ${#BRANCH_NAME} -gt $MAX_BRANCH_LENGTH ]; then
# Calculate how much we need to trim from suffix
# Account for: feature number (3) + hyphen (1) = 4 chars
MAX_SUFFIX_LENGTH=$((MAX_BRANCH_LENGTH - 4))
# Truncate suffix at word boundary if possible
TRUNCATED_SUFFIX=$(echo "$BRANCH_SUFFIX" | cut -c1-$MAX_SUFFIX_LENGTH)
# Remove trailing hyphen if truncation created one
TRUNCATED_SUFFIX=$(echo "$TRUNCATED_SUFFIX" | sed 's/-$//')
ORIGINAL_BRANCH_NAME="$BRANCH_NAME"
BRANCH_NAME="${FEATURE_NUM}-${TRUNCATED_SUFFIX}"
>&2 echo "[specify] Warning: Branch name exceeded GitHub's 244-byte limit"
>&2 echo "[specify] Original: $ORIGINAL_BRANCH_NAME (${#ORIGINAL_BRANCH_NAME} bytes)"
>&2 echo "[specify] Truncated to: $BRANCH_NAME (${#BRANCH_NAME} bytes)"
fi
if [ "$HAS_GIT" = true ]; then
git checkout -b "$BRANCH_NAME"
else
>&2 echo "[specify] Warning: Git repository not detected; skipped branch creation for $BRANCH_NAME"
fi
FEATURE_DIR="$SPECS_DIR/$BRANCH_NAME"
mkdir -p "$FEATURE_DIR"
TEMPLATE="$REPO_ROOT/.specify/templates/spec-template.md"
SPEC_FILE="$FEATURE_DIR/spec.md"
if [ -f "$TEMPLATE" ]; then cp "$TEMPLATE" "$SPEC_FILE"; else touch "$SPEC_FILE"; fi
# Set the SPECIFY_FEATURE environment variable for the current session
export SPECIFY_FEATURE="$BRANCH_NAME"
if $JSON_MODE; then
printf '{"BRANCH_NAME":"%s","SPEC_FILE":"%s","FEATURE_NUM":"%s"}\n' "$BRANCH_NAME" "$SPEC_FILE" "$FEATURE_NUM"
else
echo "BRANCH_NAME: $BRANCH_NAME"
echo "SPEC_FILE: $SPEC_FILE"
echo "FEATURE_NUM: $FEATURE_NUM"
echo "SPECIFY_FEATURE environment variable set to: $BRANCH_NAME"
fi