From ba175e960b0fa53aec5c7449aaf766c0ba9a2071 Mon Sep 17 00:00:00 2001
From: "George H. Sun" <shk3@users.noreply.github.com>
Date: Fri, 8 Mar 2024 18:29:09 +0800
Subject: [PATCH] Add git hash as version information via Bazel stamp. (#46)

ansible-puller used to include its git sha as version
https://github.com/teslamotors/ansible_puller/blob/e93c507dae6f92fc4ed2ec205a86cf6603ed7467/build-release.sh.
This logic was missed out during the migration to Bazel. This PR adds it
back to be consistent so that the Prometheus metric can show the current
git build hash.
---
 .bazelrc     | 7 +++++++
 BUILD        | 1 +
 README.md    | 6 +++---
 ws_status.sh | 4 ++++
 4 files changed, 15 insertions(+), 3 deletions(-)
 create mode 100644 .bazelrc
 create mode 100755 ws_status.sh

diff --git a/.bazelrc b/.bazelrc
new file mode 100644
index 0000000..137db77
--- /dev/null
+++ b/.bazelrc
@@ -0,0 +1,7 @@
+# Bazel stamp variable generations
+build --workspace_status_command=$(pwd)/ws_status.sh
+
+# For release
+# To use it: bazel COMMAND --config=release
+build:release --compilation_mode=opt
+build:release --stamp
diff --git a/BUILD b/BUILD
index 832e4ba..06df003 100644
--- a/BUILD
+++ b/BUILD
@@ -58,6 +58,7 @@ go_library(
         "@com_github_spf13_pflag//:pflag",
         "@com_github_spf13_viper//:viper",
     ],
+    x_defs = {"main.Version": "{STABLE_GIT_COMMIT}"}
 )
 
 #
diff --git a/README.md b/README.md
index ff157ff..ee09338 100644
--- a/README.md
+++ b/README.md
@@ -140,12 +140,12 @@ or, without bazel
 
 #### Building a Production Release
 
-`bazelisk build --platforms=@io_bazel_rules_go//go/toolchain:linux_amd64 //...`
+`bazelisk build --config=release --platforms=@io_bazel_rules_go//go/toolchain:linux_amd64 //...`
 
 #### Building Production Packages
 
-* `bazelisk build //:ansible_puller_deb`
-* `bazelisk build //:ansible_puller_rpm`
+* `bazelisk build --config=release //:ansible_puller_deb`
+* `bazelisk build --config=release //:ansible_puller_rpm`
 
 
 #### Debugging an Ansible Run
diff --git a/ws_status.sh b/ws_status.sh
new file mode 100755
index 0000000..f13ebc0
--- /dev/null
+++ b/ws_status.sh
@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+# Generates the data used by the stamping feature in bazel.
+
+echo STABLE_GIT_COMMIT "$(git rev-parse HEAD)"