chore(scripts): improve install script readability and error handling

scripts/install-git-cliff.sh

@@ -31,7 +31,7 @@ REPO="orhun/git-cliff"
 # ───────────────────────────────────────────────
 # Defaults (internal vs. user-facing)
 ARCH_OS_DEFAULT="x86_64-unknown-linux-gnu"
-DEFAULT_ARCH_DISPLAY="${ARCH_OS_DEFAULT/-unknown-/}"  # shown to user → x86_64-linux-gnu
+DEFAULT_ARCH_DISPLAY="${ARCH_OS_DEFAULT/-unknown-/}" # shown to user → x86_64-linux-gnu
 INSTALL_DIR_DEFAULT="/usr/local/bin"
 ARCH_OS="$ARCH_OS_DEFAULT"
 INSTALL_DIR="$INSTALL_DIR_DEFAULT"
@@ -54,15 +54,34 @@ show_help() {
 POSITIONAL=()
 while [[ $# -gt 0 ]]; do
   case "$1" in
-    -h|--help) show_help; exit 0 ;;
+  -h | --help)
-    -n|--dry-run) DRY_RUN=true; shift ;;
+    show_help
-    -a|--arch)
+    exit 0
-      [[ $# -lt 2 ]] && { echo "❌ Option $1 requires an argument"; exit 1; }
+    ;;
-      ARCH_OS_INPUT="$2"; shift 2 ;;
+  -n | --dry-run)
-    -d|--dir)
+    DRY_RUN=true
-      [[ $# -lt 2 ]] && { echo "❌ Option $1 requires an argument"; exit 1; }
+    shift
-      INSTALL_DIR="$2"; shift 2 ;;
+    ;;
-    *) POSITIONAL+=("$1"); shift ;;
+  -a | --arch)
+    [[ $# -lt 2 ]] && {
+      echo "❌ Option $1 requires an argument"
+      exit 1
+    }
+    ARCH_OS_INPUT="$2"
+    shift 2
+    ;;
+  -d | --dir)
+    [[ $# -lt 2 ]] && {
+      echo "❌ Option $1 requires an argument"
+      exit 1
+    }
+    INSTALL_DIR="$2"
+    shift 2
+    ;;
+  *)
+    POSITIONAL+=("$1")
+    shift
+    ;;
   esac
 done
 if [[ ${#POSITIONAL[@]} -gt 0 ]]; then
@@ -98,8 +117,16 @@ if command -v git-cliff >/dev/null; then
 fi
 
 # 4 Check for required tools
-need() { command -v "$1" >/dev/null || { echo "$1 is missing"; exit 1; }; }
+need() { command -v "$1" >/dev/null || {
-need curl; need tar; need grep; need sed; need awk; need jq
+  echo "$1 is missing"
+  exit 1
+}; }
+need curl
+need tar
+need grep
+need sed
+need awk
+need jq
 
 # 5 Determine version → Fetch release JSON
 if [[ "$VERSION" == "latest" ]]; then
@@ -109,14 +136,23 @@ else
 fi
 
 echo "🔍 Fetching release info ($API_URL)…"
-JSON=$(curl -fsSL "$API_URL") || { echo "❌ Failed to fetch release info"; exit 1; }
+JSON=$(curl -fsSL "$API_URL") || {
+  echo "❌ Failed to fetch release info"
+  exit 1
+}
 
-VERSION=$(jq -r '.tag_name' <<< "$JSON") || { echo "❌ Could not extract version"; exit 1; }
+VERSION=$(jq -r '.tag_name' <<<"$JSON") || {
+  echo "❌ Could not extract version"
+  exit 1
+}
 
-ASSET_URL=$(jq -r '.assets[]?.browser_download_url' <<< "$JSON" |
+ASSET_URL=$(jq -r '.assets[]?.browser_download_url' <<<"$JSON" |
   grep -E "${ARCH_OS}\.(tar\.(gz|xz)|zip)$" | head -n1)
 
-[[ -z "$ASSET_URL" ]] && { echo "❌ Matching asset not found for architecture ${ARCH_OS}"; exit 1; }
+[[ -z "$ASSET_URL" ]] && {
+  echo "❌ Matching asset not found for architecture ${ARCH_OS}"
+  exit 1
+}
 
 ASSET_FILE=$(basename "$ASSET_URL")
 echo "📦 Downloading git-cliff ${VERSION} (${ASSET_FILE}) …"
@@ -125,21 +161,32 @@ curl -#L -o "${TMP}/${ASSET_FILE}" "$ASSET_URL"
 
 # 6 Extract based on file extension
 case "$ASSET_FILE" in
-  *.tar.gz|*.tgz) tar -C "$TMP" -xzf "${TMP}/${ASSET_FILE}" ;;
+*.tar.gz | *.tgz) tar -C "$TMP" -xzf "${TMP}/${ASSET_FILE}" ;;
-  *.tar.xz)       tar -C "$TMP" -xJf "${TMP}/${ASSET_FILE}" ;;
+*.tar.xz) tar -C "$TMP" -xJf "${TMP}/${ASSET_FILE}" ;;
-  *.zip)          need unzip; unzip -q "${TMP}/${ASSET_FILE}" -d "$TMP" ;;
+*.zip)
-  *) echo "❌ Unknown archive format: $ASSET_FILE"; exit 1 ;;
+  need unzip
+  unzip -q "${TMP}/${ASSET_FILE}" -d "$TMP"
+  ;;
+*)
+  echo "❌ Unknown archive format: $ASSET_FILE"
+  exit 1
+  ;;
 esac
 
 # 7 Locate & (maybe) install binary
 BIN_PATH=$(find "$TMP" -type f -name git-cliff -perm -u+x | head -n1)
-[[ -z "$BIN_PATH" ]] && { echo "❌ Binary not found"; exit 1; }
+[[ -z "$BIN_PATH" ]] && {
+  echo "❌ Binary not found"
+  exit 1
+}
 
 if $DRY_RUN; then
   echo "🧪 Dry-run: verified git-cliff binary at ${BIN_PATH}"
   echo "ℹ️  Would install to: ${INSTALL_DIR}/git-cliff (sudo install -m755 …)"
   echo "✅ git-cliff $("$BIN_PATH" --version) would be installed successfully"
 else
-  sudo install -m755 "$BIN_PATH" "${INSTALL_DIR}/git-cliff"
+  SUDO=""
+  [[ $EUID -eq 0 ]] || SUDO="sudo"
+  $SUDO install -m755 "$BIN_PATH" "${INSTALL_DIR}/git-cliff"
   echo "✅ git-cliff $(git-cliff --version) installed in ${INSTALL_DIR}"
 fi