#!/bin/bash
# Script to generate release notes for GitHub releases
# Usage: ./generate-release-notes.sh <version> [commit-range]
set -e
VERSION=$1
COMMIT_RANGE=${2:-""}
if [ -z "$VERSION" ]; then
echo "Usage: $0 <version> [commit-range]"
echo "Example: $0 1.2.3 v1.2.2..HEAD"
exit 1
fi
# Function to categorize commits
categorize_commits() {
local range=$1
# Initialize arrays for different types
declare -a features=()
declare -a fixes=()
declare -a docs=()
declare -a refactor=()
declare -a other=()
# Get commits
if [ -z "$range" ]; then
# If no range, get all commits (first release)
commits=$(git log --pretty=format:"%s|%an" --reverse | head -20)
else
commits=$(git log $range --pretty=format:"%s|%an" --reverse)
fi
# Process each commit
while IFS='|' read -r message author; do
# Skip version bump commits (e.g., "1.2.3" or "v1.2.3")
if [[ $message =~ ^v?[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
continue
fi
# Extract GitHub username if available, fallback to git author
gh_user=""
if command -v gh >/dev/null 2>&1 && gh auth status >/dev/null 2>&1; then
gh_user=$(gh api user --jq '.login' 2>/dev/null || echo "")
fi
# Fallback to git author if GitHub CLI failed or not available
if [[ -z "$gh_user" ]]; then
# If we got a git author name, try to extract a username format
if [[ "$author" =~ ^[a-zA-Z0-9._-]+$ ]]; then
gh_user="$author"
else
# Convert full name to a username-like format
gh_user=$(echo "$author" | tr '[:upper:]' '[:lower:]' | sed 's/ //g' | sed 's/[^a-zA-Z0-9._-]//g')
fi
fi
# Categorize based on commit message prefix
if [[ $message =~ ^[Ff][Ee][Aa][Tt][:_\s] ]]; then
features+=("- ${message#*:} by @$gh_user")
elif [[ $message =~ ^[Ff][Ii][Xx][:_\s] ]]; then
fixes+=("- ${message#*:} by @$gh_user")
elif [[ $message =~ ^[Dd][Oo][Cc][Ss]?[:_\s] ]]; then
docs+=("- ${message#*:} by @$gh_user")
elif [[ $message =~ ^[Rr][Ee][Ff][Aa][Cc][Tt][Oo][Rr][:_\s] ]]; then
refactor+=("- ${message#*:} by @$gh_user")
else
# Clean up the message and add to other
clean_message=$message
# Remove common prefixes if present
clean_message=${clean_message#*: }
other+=("- $clean_message by @$gh_user")
fi
done <<< "$commits"
# Generate release notes
echo "## What's Changed"
echo ""
# Print features
if [ ${#features[@]} -gt 0 ]; then
echo "### 🚀 New Features"
printf '%s\n' "${features[@]}"
echo ""
fi
# Print fixes
if [ ${#fixes[@]} -gt 0 ]; then
echo "### 🐛 Bug Fixes"
printf '%s\n' "${fixes[@]}"
echo ""
fi
# Print refactoring
if [ ${#refactor[@]} -gt 0 ]; then
echo "### ♻️ Code Refactoring"
printf '%s\n' "${refactor[@]}"
echo ""
fi
# Print documentation
if [ ${#docs[@]} -gt 0 ]; then
echo "### 📚 Documentation"
printf '%s\n' "${docs[@]}"
echo ""
fi
# Print other changes
if [ ${#other[@]} -gt 0 ]; then
echo "### 🔧 Other Changes"
printf '%s\n' "${other[@]}"
echo ""
fi
# Add changelog link
if [ -n "$COMMIT_RANGE" ]; then
# Extract the previous tag from the commit range (everything before the dots)
PREVIOUS_TAG=$(echo $COMMIT_RANGE | sed 's/\.\.\..*$//' | sed 's/\.\..*$//')
PREVIOUS_TAG_NO_V=$(echo "$PREVIOUS_TAG" | sed 's/^v//')
VERSION_NO_V=$(echo "$VERSION" | sed 's/^v//')
if [ "$PREVIOUS_TAG_NO_V" != "$VERSION_NO_V" ]; then
echo "**Full Changelog**: https://github.com/edicarloslds/businessmap-mcp/compare/$PREVIOUS_TAG...v$VERSION"
fi
else
# If no range provided, get the previous tag automatically
PREVIOUS_TAG=$(git tag --sort=-version:refname | grep -v "^v$VERSION$" | head -1)
if [ -n "$PREVIOUS_TAG" ]; then
PREVIOUS_TAG_NO_V=$(echo "$PREVIOUS_TAG" | sed 's/^v//')
VERSION_NO_V=$(echo "$VERSION" | sed 's/^v//')
if [ "$PREVIOUS_TAG_NO_V" != "$VERSION_NO_V" ]; then
echo "**Full Changelog**: https://github.com/edicarloslds/businessmap-mcp/compare/$PREVIOUS_TAG...v$VERSION"
fi
else
# For first release
FIRST_COMMIT=$(git rev-list --max-parents=0 HEAD)
echo "**Full Changelog**: https://github.com/edicarloslds/businessmap-mcp/commits/v$VERSION"
fi
fi
}
# Generate and output the release notes
categorize_commits "$COMMIT_RANGE"
