From d27e16e9ca81f2d65f4d1a4655a4c32f8d60c880 Mon Sep 17 00:00:00 2001
From: Kailash Nadh <kailash@nadh.in>
Date: Sun, 8 Aug 2021 12:34:11 +0530
Subject: [PATCH] Add a VERSION file for git-archive export

- Use git to get tag and commit hash or fall back to extracting
  the values from the VERSION file if it is (from git archive)
---
 .gitattributes | 1 +
 Makefile       | 8 ++++++--
 VERSION        | 2 ++
 3 files changed, 9 insertions(+), 2 deletions(-)
 create mode 100644 VERSION

diff --git a/.gitattributes b/.gitattributes
index fbad357..16225b4 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1 +1,2 @@
 frontend/* linguist-vendored
+VERSION export-subst
diff --git a/Makefile b/Makefile
index 0434c89..ff8f1c5 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,9 @@
-LAST_COMMIT := $(shell git rev-parse --short HEAD)
-VERSION := $(shell git describe --tags --abbrev=0)
+# Try to get the commit hash from 1) git 2) the VERSION file 3) fallback.
+LAST_COMMIT := $(or $(shell git rev-parse --short HEAD 2> /dev/null),$(shell head -n 1 VERSION | grep -oP -m 1 "^[a-z0-9]+$$"),"UNKNOWN")
+
+# Try to get the semver from 1) git 2) the VERSION file 3) fallbakc.
+VERSION := $(or $(shell git describe --tags --abbrev=0 2> /dev/null),$(shell grep -oP "tag: \K(.*)(?=,)" VERSION),"v0.0.0")
+
 BUILDSTR := ${VERSION} (\#${LAST_COMMIT} $(shell date -u +"%Y-%m-%dT%H:%M:%S%z"))
 
 YARN ?= yarn
diff --git a/VERSION b/VERSION
new file mode 100644
index 0000000..4df4b1d
--- /dev/null
+++ b/VERSION
@@ -0,0 +1,2 @@
+$Format:%h$
+$Format:%D$