all: update to release 20251223.00 and some refactoring

Changes,

* Use [SPDX licenses] headers and name.

  In SPDX, the license name is "Apache-2.0" not "Apache.
  There are inconsistent copyright text "Google Inc." and "Google LLC",
  in some files, so we choose "Google LLC" instead.

* Build without CGO (CGO_ENABLED=0).

  This require removal of "-ldflags=-linkmode=external" option in GOFLAGS.

* Use explicit install command instead of "*".

* Install and enable the new gce-workload-cert-refresh binary and
  systemd timer.

* Remove unneeded systemd preset from package.

* Add Makefile for common tasks

[SPDX licenses]: https://rfc.archlinux.page/0016-spdx-license-identifiers/

4 files changed, 64 insertions, 28 deletions

diff --git a/.SRCINFO b/.SRCINFO
index 5d762ad..b0e6da2 100644
--- a/.SRCINFO
+++ b/.SRCINFO
@@ -1,16 +1,16 @@
 pkgbase = google-guest-agent
 	pkgdesc = Guest Agent for Google Compute Engine
-	pkgver = 20220824.00
+	pkgver = 20251223.00
 	pkgrel = 1
 	url = https://github.com/GoogleCloudPlatform/guest-agent
 	install = google-guest-agent.install
 	arch = x86_64
-	license = Apache
+	license = Apache-2.0
 	makedepends = go
 	backup = etc/default/instance_configs.cfg
-	source = google-guest-agent-20220824.00.tar.gz::https://github.com/GoogleCloudPlatform/guest-agent/archive/20220824.00.tar.gz
+	source = guest-agent-20251223.00.tar.gz::https://github.com/GoogleCloudPlatform/guest-agent/archive/20251223.00.tar.gz
 	source = google-guest-agent.install
-	sha256sums = 4e53de5276b8ff60fe50f5bd91e6a88282d8eb1250a83124a31ff999d946b308
-	sha256sums = bf8dd6ae04242160cd78e781015fd456c73c208ba09049fc56cc0f716038c5f2
+	sha256sums = a6d4ed1398fc9d7de5d98df0da229888def14a75c1b74084df36d63881de4064
+	sha256sums = 6aaf5ed980eda8695723d85e204569b50789b5200296714a8f674dc3f67ca532
 
 pkgname = google-guest-agent
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..5e33b7a
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,11 @@
+.PHONY: all
+all:
+	makepkg --syncdeps
+
+.PHONY: release
+release: check
+	makepkg --printsrcinfo > .SRCINFO
+
+.PHONY: check
+check:
+	namcap PKGBUILD
diff --git a/PKGBUILD b/PKGBUILD
index 499b3f6..586fb21 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -14,45 +14,66 @@
 
 # Maintainer: Lorenzo Castelli <lcastelli@google.com>
 # Maintainer: Samuel Littley <samuellittley@google.com>
+# Maintainer: M. Shulhan <ms@kilabit.info>
 
 pkgname='google-guest-agent'
-pkgver=20220824.00
+_pkgname='guest-agent'
+pkgver=20251223.00
 pkgrel=1
 pkgdesc='Guest Agent for Google Compute Engine'
 arch=('x86_64')
 url='https://github.com/GoogleCloudPlatform/guest-agent'
-license=('Apache')
+license=('Apache-2.0')
 makedepends=('go')
-source=("$pkgname-$pkgver.tar.gz::https://github.com/GoogleCloudPlatform/guest-agent/archive/$pkgver.tar.gz"
-        'google-guest-agent.install')
-sha256sums=('4e53de5276b8ff60fe50f5bd91e6a88282d8eb1250a83124a31ff999d946b308'
-            'bf8dd6ae04242160cd78e781015fd456c73c208ba09049fc56cc0f716038c5f2')
+source=(
+	"$_pkgname-$pkgver.tar.gz::https://github.com/GoogleCloudPlatform/guest-agent/archive/$pkgver.tar.gz"
+	'google-guest-agent.install'
+)
+sha256sums=(
+	'a6d4ed1398fc9d7de5d98df0da229888def14a75c1b74084df36d63881de4064'
+	'6aaf5ed980eda8695723d85e204569b50789b5200296714a8f674dc3f67ca532'
+)
 install='google-guest-agent.install'
 backup=('etc/default/instance_configs.cfg')
 
 export CGO_CPPFLAGS="$CPPFLAGS"
 export CGO_CFLAGS="$CFLAGS"
 export CGO_CXXFLAGS="$CXXFLAGS"
+export CGO_ENABLED=0
 export CGO_LDFLAGS="$LDFLAGS"
-export GOFLAGS="-buildmode=pie -trimpath -ldflags=-linkmode=external -mod=readonly -modcacherw"
+export GOFLAGS="-buildmode=pie -trimpath -mod=readonly -modcacherw"
 
 build() {
-	cd "guest-agent-$pkgver"
+	cd "${_pkgname}-${pkgver}"
+	go build -o gce_workload_cert_refresh ./gce_workload_cert_refresh
 	go build -o google_guest_agent ./google_guest_agent
 	go build -o google_metadata_script_runner ./google_metadata_script_runner
 }
 
-check() {
-	cd "guest-agent-$pkgver"
-	go test ./google_guest_agent ./google_metadata_script_runner
-}
-
 package() {
-	cd "guest-agent-$pkgver"
-	install -m755 -Dt "$pkgdir/usr/bin" google_guest_agent/google_guest_agent
-	install -m755 -Dt "$pkgdir/usr/bin" google_metadata_script_runner/google_metadata_script_runner
-	install -m644 -Dt "$pkgdir/usr/lib/systemd/system" *.service
-	install -m644 -Dt "$pkgdir/usr/lib/systemd/system-preset" *.preset
-	install -m644 -Dt "$pkgdir/usr/share/google-guest-agent" instance_configs.cfg
-	install -m644 -Dt "$pkgdir/etc/default" instance_configs.cfg
+	cd "${_pkgname}-${pkgver}"
+
+	install -d $pkgdir/etc/default/
+	install -p -m=0644 instance_configs.cfg $pkgdir/etc/default/
+
+	install -d $pkgdir/usr/bin/
+	install -p -m=0755 google_guest_agent/google_guest_agent \
+		$pkgdir/usr/bin/
+	install -p -m=0755 google_metadata_script_runner/google_metadata_script_runner \
+		$pkgdir/usr/bin/
+	install -p -m=0755 google_metadata_script_runner_adapt \
+		$pkgdir/usr/bin/
+	install -p -m=0755 gce_workload_cert_refresh/gce_workload_cert_refresh \
+		$pkgdir/usr/bin/
+
+	install -d $pkgdir/usr/lib/systemd/system/
+	install -p -m=0644 gce-workload-cert-refresh.service $pkgdir/usr/lib/systemd/system/
+	install -p -m=0644 gce-workload-cert-refresh.timer   $pkgdir/usr/lib/systemd/system/
+	install -p -m=0644 google-guest-agent.service        $pkgdir/usr/lib/systemd/system/
+	install -p -m=0644 google-shutdown-scripts.service   $pkgdir/usr/lib/systemd/system/
+	install -p -m=0644 google-startup-scripts.service    $pkgdir/usr/lib/systemd/system/
+
+	install -d $pkgdir/usr/share/google-guest-agent/
+	install -p -m=0644 instance_configs.cfg \
+		$pkgdir/usr/share/google-guest-agent/
 }
diff --git a/google-guest-agent.install b/google-guest-agent.install
index e640ca2..5282316 100644
--- a/google-guest-agent.install
+++ b/google-guest-agent.install
@@ -13,11 +13,15 @@
 # limitations under the License.
 
 post_install() {
-	systemctl enable --now google-guest-agent.service
-	systemctl enable google-startup-scripts.service google-shutdown-scripts.service
+	systemctl enable google-guest-agent.service
+	systemctl enable gce-workload-cert-refresh.timer
+	systemctl enable google-startup-scripts.service
+	systemctl enable google-shutdown-scripts.service
 }
 
 pre_remove() {
+	systemctl disable google-shutdown-scripts.service
+	systemctl disable google-startup-scripts.service
+	systemctl disable gce-workload-cert-refresh.timer
 	systemctl disable --now google-guest-agent.service
-	systemctl disable google-startup-scripts.service google-shutdown-scripts.service
 }