| #!/bin/bash |
| |
| set -eu |
| set -o pipefail |
| |
| dir="$1" |
| tag="$2" |
| fallback="$3" |
| |
| if [ -n "$tag" ]; then |
| echo "$tag" |
| exit 0 |
| fi |
| |
| # Apparently git describe has a bug where it always considers the work-tree |
| # dirty when invoked with --git-dir (even though 'git status' is happy). Work |
| # around this issue by cd-ing to the source directory. |
| cd "$dir" |
| # 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. |
| [ -e .git ] && git describe --abbrev=7 --dirty=+ 2>/dev/null | sed 's/^v//' || echo "$fallback" |