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-rwxr-xr-xutils/gen-version.sh13
1 files changed, 7 insertions, 6 deletions
diff --git a/utils/gen-version.sh b/utils/gen-version.sh
index 708c01d3..7f7872ce 100755
--- a/utils/gen-version.sh
+++ b/utils/gen-version.sh
@@ -3,13 +3,11 @@
# SPDX-License-Identifier: GPL-2.0-or-later
# Generate a version string using git describe
-if [ -n "$1" ]
-then
- cd "$1" 2>/dev/null || exit 1
-fi
+build_dir="$1"
# Bail out if the directory isn't under git control
-git rev-parse --git-dir >/dev/null 2>&1 || exit 1
+src_dir=$(git rev-parse --git-dir 2>&1) || exit 1
+src_dir=$(readlink -f "$src_dir/..")
# Get a short description from the tree.
version=$(git describe --abbrev=8 --match "v[0-9]*" 2>/dev/null)
@@ -24,7 +22,10 @@ fi
# Append a '-dirty' suffix if the working tree is dirty. Prevent false
# positives due to changed timestamps by running git update-index.
-git update-index --refresh > /dev/null 2>&1
+if [ -z "$build_dir" ] || (echo "$build_dir" | grep -q "$src_dir")
+then
+ git update-index --refresh > /dev/null 2>&1
+fi
git diff-index --quiet HEAD || version="$version-dirty"
# Replace first '-' with a '+' to denote build metadata, strip the 'g' in from