Adding upstream version 255.4.upstream/255.4

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 33 insertions, 0 deletions

diff --git a/tools/meson-vcs-tag.sh b/tools/meson-vcs-tag.sh
new file mode 100755
index 0000000..4a8dc89
--- /dev/null
+++ b/tools/meson-vcs-tag.sh
@@ -0,0 +1,33 @@
+#!/usr/bin/env bash
+# SPDX-License-Identifier: LGPL-2.1-or-later
+
+set -u
+set -o pipefail
+
+dir="${1:?}"
+fallback="${2:?}"
+version_tag="${3:-}"
+
+if [ -n "${version_tag}" ]; then
+    # If -Dversion_tag= was used, just use that without further changes.
+    echo "${version_tag}"
+else
+    # Check that we have either .git/ (a normal clone) or a .git file (a work-tree)
+    # and that we don't get confused if a tarball is extracted in a higher-level
+    # git repository.
+    #
+    # If the working tree has no tags (CI builds), the first git-describe will fail
+    # and we fall back to project_version-commitid instead.
+
+    c=''
+    if [ -e "${dir}/.git" ]; then
+        c="$(git -C "$dir" describe --abbrev=7 --dirty=^ 2>/dev/null)"
+        if [ -z "$c" ]; then
+            # This call might still fail with permission issues
+            suffix="$(git -C "$dir" describe --always --abbrev=7 --dirty=^ 2>/dev/null)"
+            [ -n "$suffix" ] && c="${fallback}-${suffix}"
+        fi
+    fi
+    [ -z "$c" ] && c="${fallback}"
+    echo "$c" | sed 's/^v//; s/-rc/~rc/'
+fi