tools/meson-vcs-tag.sh

   1 #!/usr/bin/env bash
   2 # SPDX-License-Identifier: LGPL-2.1-or-later
   3
   4 set -u
   5 set -o pipefail
   6
   7 dir="${1:?}"
   8 fallback="${2:?}"
   9 version_tag="${3:-}"
  10
  11 if [ -n "${version_tag}" ]; then
  12     # If -Dversion_tag= was used, just use that without further changes.
  13     echo "${version_tag}"
  14 else
  15     # Check that we have either .git/ (a normal clone) or a .git file (a work-tree)
  16     # and that we don't get confused if a tarball is extracted in a higher-level
  17     # git repository.
  18     #
  19     # If the working tree has no tags (CI builds), the first git-describe will fail
  20     # and we fall back to project_version-commitid instead.
  21
  22     c=''
  23     if [ -e "${dir}/.git" ]; then
  24         c="$(git -C "$dir" describe --abbrev=7 --dirty=^ 2>/dev/null)"
  25         if [ -z "$c" ]; then
  26             # This call might still fail with permission issues
  27             suffix="$(git -C "$dir" describe --always --abbrev=7 --dirty=^ 2>/dev/null)"
  28             [ -n "$suffix" ] && c="${fallback}-${suffix}"
  29         fi
  30     fi
  31     [ -z "$c" ] && c="${fallback}"
  32     echo "$c" | sed 's/^v//; s/-rc/~rc/'
  33 fi