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-rwxr-xr-xgen-version.sh20
1 files changed, 20 insertions, 0 deletions
diff --git a/gen-version.sh b/gen-version.sh
new file mode 100755
index 0000000..739c83e
--- /dev/null
+++ b/gen-version.sh
@@ -0,0 +1,20 @@
+#!/bin/sh
+
+# Get version-info specified in Makefile
+V=$1
+
+# Use `git describe` to get current version if we're inside a git repo
+if test -d .git
+then
+	V=$(git describe --abbrev=4 HEAD 2>/dev/null | sed -e 's/-/./g')
+fi
+
+new="CGIT_VERSION = $V"
+old=$(cat VERSION 2>/dev/null)
+
+# Exit if VERSION is uptodate
+test "$old" = "$new" && exit 0
+
+# Update VERSION with new version-info
+echo "$new" > VERSION
+cat VERSION