build: make git-version not fail if no tags exist (scionproto#4438)

jiceathome · juagargi · commit b13a0b6efd98 · 2024-03-08T18:56:55.000+01:00
--always, will substitute an abbreviated commit hash if there's no tag in sight. Better than failing with a cryptic message.
diff --git a/tools/git-version b/tools/git-version
@@ -2,4 +2,4 @@
 
 # Small script to determine the git version.
 
-exec git describe --tags --dirty
+exec git describe --tags --dirty --always

Original file line number	Diff line number	Diff line change
`@@ -2,4 +2,4 @@`
`2`	`2`
`3`	`3`	`# Small script to determine the git version.`
`4`	`4`
`5`		`-exec git describe --tags --dirty`
	`5`	`+exec git describe --tags --dirty --always`