Wire Forge-native release infrastructure

Scripts/version.sh

@@ -0,0 +1,146 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+export PATH="$PATH:/opt/homebrew/bin:/usr/local/bin:/etc/profiles/per-user/$USER/bin"
+
+cd "$(dirname "${BASH_SOURCE[0]}")/.."
+
+TAG_PREFIX="builds/"
+DEFAULT_VERSION_REMOTE="origin"
+if git remote get-url forgejo >/dev/null 2>&1; then
+  DEFAULT_VERSION_REMOTE="forgejo"
+fi
+VERSION_REMOTE="${BURROW_VERSION_REMOTE:-$DEFAULT_VERSION_REMOTE}"
+VERSION_REQUIRE_REMOTE="${BURROW_VERSION_REQUIRE_REMOTE:-false}"
+COMMAND="${1:-}"
+
+truthy() {
+  case "$1" in
+    1|true|TRUE|True|yes|YES|Yes|y|Y|on|ON|On) return 0 ;;
+    *) return 1 ;;
+  esac
+}
+
+list_local_build_tags() {
+  git tag -l "${TAG_PREFIX}[0-9]*"
+}
+
+latest_local_build_tag() {
+  list_local_build_tags | sort -n -t'/' -k2 | tail -n 1
+}
+
+latest_remote_build_record() {
+  local raw rc=0
+  raw="$(git ls-remote --tags --refs "$VERSION_REMOTE" "refs/tags/${TAG_PREFIX}[0-9]*" 2>/dev/null)" || rc=$?
+  if [[ $rc -ne 0 ]]; then
+    return $rc
+  fi
+  if [[ -z "$raw" ]]; then
+    return 0
+  fi
+  printf '%s\n' "$raw" | awk -F'\t' -v prefix="refs/tags/${TAG_PREFIX}" '
+    $2 ~ ("^" prefix "[0-9]+$") {
+      build = $2
+      sub("^refs/tags/", "", build)
+      print build "\t" $1
+    }
+  ' | sort -n -t'/' -k2 | tail -n 1
+}
+
+resolve_build_state() {
+  local remote_record local_latest remote_status=0
+  BUILD_STATE_SOURCE="local"
+  LATEST_BUILD=""
+  LATEST_BUILD_COMMIT=""
+
+  remote_record="$(latest_remote_build_record)" || remote_status=$?
+  if [[ $remote_status -eq 0 ]]; then
+    BUILD_STATE_SOURCE="remote"
+    if [[ -n "$remote_record" ]]; then
+      LATEST_BUILD="$(printf '%s\n' "$remote_record" | cut -f1)"
+      LATEST_BUILD_COMMIT="$(printf '%s\n' "$remote_record" | cut -f2)"
+    fi
+  else
+    if truthy "$VERSION_REQUIRE_REMOTE"; then
+      echo "error: unable to resolve authoritative build tags from ${VERSION_REMOTE}" >&2
+      exit "$remote_status"
+    fi
+    echo "warning: unable to resolve authoritative build tags from ${VERSION_REMOTE}; falling back to local tags" >&2
+    local_latest="$(latest_local_build_tag)"
+    if [[ -n "$local_latest" ]]; then
+      LATEST_BUILD="$local_latest"
+      LATEST_BUILD_COMMIT="$(git rev-parse -q --verify "refs/tags/${LATEST_BUILD}^{commit}" 2>/dev/null || true)"
+    fi
+  fi
+
+  if [[ -z "$LATEST_BUILD" ]]; then
+    LATEST_BUILD_NUMBER="0"
+  else
+    LATEST_BUILD_NUMBER="${LATEST_BUILD#$TAG_PREFIX}"
+  fi
+}
+
+resolve_build_state
+
+HEAD_COMMIT="$(git rev-parse HEAD)"
+
+ANCESTRY_STATE="ok"
+if [[ -n "${LATEST_BUILD_NUMBER}" && "${LATEST_BUILD_NUMBER}" != "0" ]]; then
+  if [[ -n "${LATEST_BUILD_COMMIT}" ]] && git cat-file -e "${LATEST_BUILD_COMMIT}^{commit}" 2>/dev/null; then
+    if ! git merge-base --is-ancestor "${LATEST_BUILD_COMMIT}" HEAD; then
+      ANCESTRY_STATE="not-descended"
+      if [[ "$COMMAND" != "status" ]]; then
+        echo "error: HEAD is not descended from build ${LATEST_BUILD_NUMBER}" >&2
+        exit 1
+      fi
+    fi
+  else
+    ANCESTRY_STATE="missing-tag-commit"
+    echo "notice: skipping build ancestry check (missing ${LATEST_BUILD} commit, likely shallow checkout)" >&2
+  fi
+fi
+
+BUILD_NUMBER="$LATEST_BUILD_NUMBER"
+
+if [[ "$COMMAND" == "increment" || "$COMMAND" == "pre-increment" ]]; then
+  if [[ -n "${BURROW_BUILD_NUMBER_OVERRIDE:-}" ]]; then
+    if [[ ! "${BURROW_BUILD_NUMBER_OVERRIDE}" =~ ^[0-9]+$ ]]; then
+      echo "error: BURROW_BUILD_NUMBER_OVERRIDE must be an integer" >&2
+      exit 1
+    fi
+    if (( BURROW_BUILD_NUMBER_OVERRIDE <= LATEST_BUILD_NUMBER )); then
+      echo "error: BURROW_BUILD_NUMBER_OVERRIDE must be greater than ${LATEST_BUILD_NUMBER}" >&2
+      exit 1
+    fi
+    NEW_BUILD_NUMBER="${BURROW_BUILD_NUMBER_OVERRIDE}"
+  else
+    NEW_BUILD_NUMBER=$((LATEST_BUILD_NUMBER + 1))
+  fi
+  NEW_TAG="$TAG_PREFIX$NEW_BUILD_NUMBER"
+  BUILD_NUMBER="$NEW_BUILD_NUMBER"
+fi
+
+if [[ "$COMMAND" == "increment" ]]; then
+  git tag "$NEW_TAG"
+  git push --quiet "$VERSION_REMOTE" "$NEW_TAG"
+fi
+
+CONFIG_PATH="Apple/Configuration/Version.xcconfig"
+if [[ "$COMMAND" != "status" && -f "$CONFIG_PATH" ]]; then
+  current_config_version="$(sed -n 's/^[[:space:]]*CURRENT_PROJECT_VERSION[[:space:]]*=[[:space:]]*//p' "$CONFIG_PATH" 2>/dev/null | tail -n 1 || true)"
+  if [[ "$current_config_version" != "$BUILD_NUMBER" ]]; then
+    echo "CURRENT_PROJECT_VERSION = $BUILD_NUMBER" > "$CONFIG_PATH"
+  fi
+  git update-index --assume-unchanged "$CONFIG_PATH" 2>/dev/null || true
+fi
+
+if [[ "$COMMAND" == "status" ]]; then
+  if [[ "${ANCESTRY_STATE}" == "ok" && "${LATEST_BUILD_NUMBER}" != "0" && -n "${LATEST_BUILD_COMMIT}" && "${HEAD_COMMIT}" == "${LATEST_BUILD_COMMIT}" ]]; then
+    echo "clean"
+  else
+    echo "dirty"
+  fi
+  exit 0
+fi
+
+echo "$BUILD_NUMBER"