Add release_gem script

Author: silva96

release_gem.sh

@@ -0,0 +1,202 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+############################################
+# Config — tweak if your gem/repo differs
+############################################
+GEM_NAME="log_bench"
+DEFAULT_BRANCH="main"
+VERSION_FILE="lib/${GEM_NAME}/version.rb"
+GEMSPEC_FILE="${GEM_NAME}.gemspec"
+TAG_PREFIX="v"
+
+# Bump mode: patch | minor | major (default patch)
+BUMP="${BUMP:-patch}"
+
+############################################
+# Arg parsing (optional)
+############################################
+while [[ $# -gt 0 ]]; do
+  case "$1" in
+    --bump) BUMP="${2:-patch}"; shift 2 ;;
+    --bump=*) BUMP="${1#*=}"; shift 1 ;;
+    -h|--help)
+      cat <<EOF
+Usage: $0 [--bump patch|minor|major]
+Defaults to --bump patch (e.g., 0.2.6 -> 0.2.7).
+EOF
+      exit 0 ;;
+    *) echo "Unknown arg: $1" >&2; exit 1 ;;
+  esac
+done
+
+case "$BUMP" in
+  patch|minor|major) : ;;
+  *) echo "Invalid --bump: $BUMP (use patch|minor|major)"; exit 1 ;;
+esac
+
+############################################
+# Pretty logging
+############################################
+if command -v tput >/dev/null 2>&1 && [ -n "${TERM:-}" ]; then
+  BOLD=$(tput bold) || BOLD=""
+  RESET=$(tput sgr0) || RESET=""
+  GREEN=$(tput setaf 2) || GREEN=""
+  YELLOW=$(tput setaf 3) || YELLOW=""
+  RED=$(tput setaf 1) || RED=""
+  BLUE=$(tput setaf 4) || BLUE=""
+else
+  BOLD=""; RESET=""; GREEN=""; YELLOW=""; RED=""; BLUE=""
+fi
+
+log()     { printf "%b\n" "${BLUE}▸${RESET} $*"; }
+success() { printf "%b\n" "${GREEN}✔${RESET} $*"; }
+warn()    { printf "%b\n" "${YELLOW}⚠${RESET} $*"; }
+error()   { printf "%b\n" "${RED}✖${RESET} $*"; }
+die()     { error "$*"; exit 1; }
+
+############################################
+# Helpers
+############################################
+require_cmd() { command -v "$1" >/dev/null 2>&1 || die "Missing required command: $1"; }
+
+current_version() {
+  # Extract the first X.Y.Z from the VERSION file
+  grep -Eo '[0-9]+\.[0-9]+\.[0-9]+' "$VERSION_FILE" | head -n1
+}
+
+validate_semver() { [[ "$1" =~ ^[0-9]+\.[0-9]+\.[0-9]+$ ]]; }
+
+bump_version() {
+  local mode="$1" ver="$2"
+  IFS='.' read -r MA MI PA <<<"$ver"
+  case "$mode" in
+    patch) echo "${MA}.${MI}.$((PA+1))" ;;
+    minor) echo "${MA}.$((MI+1)).0" ;;
+    major) echo "$((MA+1)).0.0" ;;
+  esac
+}
+
+update_version_file() {
+  local new="$1"
+  # Robust sed (preserves indentation, quote style, optional .freeze)
+  sed -E "s/^([[:space:]]*)VERSION[[:space:]]*=[[:space:]]*(['\"])[0-9]+\.[0-9]+\.[0-9]+(['\"])(\.freeze)?/\1VERSION = \2${new}\3\4/" \
+    "$VERSION_FILE" > "${VERSION_FILE}.tmp"
+  mv "${VERSION_FILE}.tmp" "$VERSION_FILE"
+}
+
+ensure_clean_worktree() {
+  if [ -n "$(git status --porcelain)" ]; then
+    warn "Your working tree has uncommitted changes:"
+    git status --short
+    read -rp "$(printf '%b' "${YELLOW}Proceed anyway? [y/N] ${RESET}")" ans
+    [[ "${ans:-}" =~ ^[Yy]$ ]] || die "Aborted due to dirty working tree."
+  fi
+}
+
+############################################
+# Checks
+############################################
+require_cmd git
+require_cmd bundle
+require_cmd gem
+require_cmd sed
+
+if ! command -v gh >/dev/null 2>&1; then
+  warn "GitHub CLI (gh) not found. GitHub release creation will be skipped."
+  GH_AVAILABLE="false"
+else
+  GH_AVAILABLE="true"
+fi
+
+[ -f "$VERSION_FILE" ] || die "Version file not found: $VERSION_FILE"
+[ -f "$GEMSPEC_FILE" ] || die "Gemspec not found: $GEMSPEC_FILE"
+
+############################################
+# Start
+############################################
+log "${BOLD}Publishing ${GEM_NAME}${RESET}"
+ensure_clean_worktree
+
+log "Pulling latest from origin/${DEFAULT_BRANCH}…"
+git checkout "$DEFAULT_BRANCH" >/dev/null 2>&1 || true
+git pull origin "$DEFAULT_BRANCH"
+success "Up to date."
+
+CURR_VER="$(current_version)"
+[ -n "$CURR_VER" ] || die "Could not determine current version from $VERSION_FILE"
+
+log "Current version detected in ${VERSION_FILE}: ${BOLD}${CURR_VER}${RESET}"
+PROPOSED="$(bump_version "$BUMP" "$CURR_VER")"
+read -rp "$(printf '%b' "${BLUE}Proposed next ${BOLD}${BUMP}${RESET}${BLUE} version is ${BOLD}${PROPOSED}${RESET}${BLUE}. Press Enter to accept or type a different semver (X.Y.Z): ${RESET}")" NEW_VER
+NEW_VER="${NEW_VER:-$PROPOSED}"
+validate_semver "$NEW_VER" || die "Invalid semver: $NEW_VER"
+
+TAG="${TAG_PREFIX}${NEW_VER}"
+
+# Guard against existing tag
+if git rev-parse -q --verify "refs/tags/${TAG}" >/dev/null; then
+  die "Tag ${TAG} already exists."
+fi
+
+log "Updating version file to ${BOLD}${NEW_VER}${RESET}…"
+before_contents="$(cat "$VERSION_FILE")"
+update_version_file "$NEW_VER"
+after_contents="$(cat "$VERSION_FILE")"
+
+if [ "$before_contents" = "$after_contents" ]; then
+  AFTER_VER="$(current_version || true)"
+  if [ "$AFTER_VER" = "$NEW_VER" ]; then
+    warn "Version file already at ${NEW_VER}; nothing to change."
+  else
+    die "Failed to update ${VERSION_FILE}. Ensure it has a line like:
+  VERSION = \"${CURR_VER}\"
+(or with single quotes / optional .freeze)."
+  fi
+else
+  success "Updated ${VERSION_FILE}."
+fi
+
+log "Installing gems (bundle install)…"
+bundle install
+success "Dependencies installed."
+
+log "Committing version bump…"
+# Only commit if VERSION_FILE actually changed
+if git diff --quiet -- "$VERSION_FILE"; then
+  warn "No changes to commit (version file already at ${NEW_VER})."
+else
+  git add "$VERSION_FILE"
+  git commit -m "Bump version to ${NEW_VER}"
+  success "Committed."
+fi
+
+log "Creating tag ${BOLD}${TAG}${RESET}…"
+git tag "${TAG}" -m "Release version ${NEW_VER}"
+success "Tag created."
+
+log "Pushing branch & tag to origin…"
+git push origin "$DEFAULT_BRANCH"
+git push origin "${TAG}"
+success "Pushed."
+
+if [ "$GH_AVAILABLE" = "true" ]; then
+  log "Creating GitHub release ${BOLD}${TAG}${RESET} with auto-generated notes…"
+  gh release create "${TAG}" --title "Release version ${NEW_VER}" --generate-notes || warn "Failed to create GitHub release via gh."
+  success "GitHub release created."
+else
+  warn "Skipping GitHub release creation (gh not installed)."
+fi
+
+log "Building gem…"
+gem build "$GEMSPEC_FILE"
+GEM_FILE="${GEM_NAME}-${NEW_VER}.gem"
+[ -f "$GEM_FILE" ] || die "Gem file not found after build: $GEM_FILE"
+success "Built ${GEM_FILE}."
+
+log "Pushing gem to RubyGems…"
+gem push "$GEM_FILE"
+success "Gem pushed to RubyGems."
+
+success "${BOLD}${GEM_NAME} ${NEW_VER}${RESET} has been published! 🎉"
+