#!/bin/bash

################################################################################

# Write the build stamp (git.properties) that /status reports.

#

# Usage: write_git_properties.sh <output-file>

#

# Why a script and not git-commit-id-maven-plugin: that plugin bundles JGit 6.7,

# which has no `commondir` support, so it cannot read a linked worktree's gitdir.

# Its GitDirLocator.resolveWorktree() works around that by collapsing

# <main>/.git/worktrees/<name> back to <main>/.git — meaning every build run from

# a worktree stamped the MAIN checkout's branch and commit. On top of that its

# PropertiesFileGenerator skips rewriting whenever the only changed key is

# git.build.time, so the stamp froze at the first build. The git CLI is

# worktree-aware by construction and we rewrite unconditionally, so both go away.

#

# Never fails the build: with no git binary or no repository we still emit a

# well-formed stamp with git.commit.id=unknown (the plugin behaved the same way

# via failOnNoGitDirectory=false, and source-tarball builds rely on it).

################################################################################

set -u

OUT="${1:-}"

if [[ -z "$OUT" ]]; then

echo "write_git_properties.sh: output file argument is required" >&2

exit 1

fi

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"

# Resolve the repository from the script's own location, not the caller's cwd:

# Maven invokes this from a module directory, and `git` must run against the

# working copy that owns this script.

REPO_ROOT="$(git -C "$SCRIPT_DIR" rev-parse --show-toplevel 2>/dev/null || true)"

g() {

# Echo a git command's first line, empty string on any failure.

git -C "$REPO_ROOT" "$@" 2>/dev/null | head -1 || true

}

if [[ -n "$REPO_ROOT" ]]; then

BRANCH="$(g rev-parse --abbrev-ref HEAD)"

COMMIT_ID="$(g rev-parse HEAD)"

COMMIT_ABBREV="$(g rev-parse --short=7 HEAD)"

COMMIT_TIME="$(g log -1 --format=%cI)"

COMMIT_USER_NAME="$(g log -1 --format=%an)"

COMMIT_USER_EMAIL="$(g log -1 --format=%ae)"

COMMIT_MESSAGE_SHORT="$(g log -1 --format=%s)"

DESCRIBE="$(g describe --always --dirty --abbrev=7)"

TAGS="$(git -C "$REPO_ROOT" tag --points-at HEAD 2>/dev/null | paste -sd, - || true)"

REMOTE_URL="$(g config --get remote.origin.url)"

BUILD_USER_NAME="$(g config --get user.name)"

BUILD_USER_EMAIL="$(g config --get user.email)"

# Tracked modifications only, matching what git-commit-id reported: untracked

# scratch files (build logs, editor state) are always present in a working

# checkout and would pin the flag to true, which is exactly the "renders the

# same either way" problem 6727bd372 set out to fix.

if [[ -n "$(git -C "$REPO_ROOT" status --porcelain --untracked-files=no 2>/dev/null)" ]]; then

DIRTY="true"

else

DIRTY="false"

fi

else

BRANCH=""

COMMIT_ID="unknown"

COMMIT_ABBREV="unknown"

COMMIT_TIME=""

COMMIT_USER_NAME=""

COMMIT_USER_EMAIL=""

COMMIT_MESSAGE_SHORT=""

DESCRIBE=""

TAGS=""

REMOTE_URL=""

BUILD_USER_NAME=""

BUILD_USER_EMAIL=""

DIRTY="false"

fi

[[ -z "$COMMIT_ID" ]] && COMMIT_ID="unknown"

[[ -z "$COMMIT_ABBREV" ]] && COMMIT_ABBREV="unknown"

# BSD date (macOS) has no %:z, so put the colon into the numeric offset by hand

# and keep the ISO-8601 shape the previous stamps used.

BUILD_TIME="$(date +%Y-%m-%dT%H:%M:%S%z | sed -E 's/([+-][0-9]{2})([0-9]{2})$/\1:\2/')"

BUILD_HOST="$(hostname 2>/dev/null || echo unknown)"

# java.util.Properties treats \ : = # ! specially in values; escape what can occur

# here. Timestamps and URLs carry ':', commit subjects can carry anything.

esc() {

printf '%s' "$1" | sed -e 's/\\/\\\\/g' -e 's/:/\\:/g' -e 's/=/\\=/g' -e 's/#/\\#/g' -e 's/!/\\!/g'

}

OUT_DIR="$(dirname "$OUT")"

mkdir -p "$OUT_DIR"

{

echo "#Generated by scripts/write_git_properties.sh"

echo "git.branch=$(esc "$BRANCH")"

echo "git.build.host=$(esc "$BUILD_HOST")"

echo "git.build.time=$(esc "$BUILD_TIME")"

echo "git.build.user.email=$(esc "$BUILD_USER_EMAIL")"

echo "git.build.user.name=$(esc "$BUILD_USER_NAME")"

echo "git.commit.id=$(esc "$COMMIT_ID")"

echo "git.commit.id.abbrev=$(esc "$COMMIT_ABBREV")"

echo "git.commit.id.describe=$(esc "$DESCRIBE")"

echo "git.commit.message.short=$(esc "$COMMIT_MESSAGE_SHORT")"

echo "git.commit.time=$(esc "$COMMIT_TIME")"

echo "git.commit.user.email=$(esc "$COMMIT_USER_EMAIL")"

echo "git.commit.user.name=$(esc "$COMMIT_USER_NAME")"

echo "git.dirty=$DIRTY"

echo "git.remote.origin.url=$(esc "$REMOTE_URL")"

echo "git.tags=$(esc "$TAGS")"

} > "$OUT"

# Legacy stamps written by git-commit-id into the source tree. They are build

# output (gitignored), and obp-commons' copy would otherwise keep shipping a

# stale git.properties that can shadow this one on the runtime classpath.

if [[ -n "$REPO_ROOT" ]]; then

rm -f "$REPO_ROOT/obp-api/src/main/resources/git.properties" \

"$REPO_ROOT/obp-commons/src/main/resources/git.properties" \

"$REPO_ROOT/obp-commons/target/classes/git.properties" 2>/dev/null || true

fi

exit 0