Merge pull request #3667 from emersion/fix-meson-version

Fix --version when building from tarball

meson.build

@@ -128,12 +128,13 @@ endif
 
 add_project_arguments('-DSYSCONFDIR="/@0@"'.format(join_paths(prefix, sysconfdir)), language : 'c')
 
-if git.found()
-	git_commit_hash = run_command([git.path(), 'describe', '--always', '--tags']).stdout().strip()
-	git_branch = run_command([git.path(), 'rev-parse', '--abbrev-ref', 'HEAD']).stdout().strip()
-	version = '"@0@ (" __DATE__ ", branch \'@1@\')"'.format(git_commit_hash, git_branch)
-else
 version = '"@0@"'.format(meson.project_version())
+if git.found()
+	git_commit_hash = run_command([git.path(), 'describe', '--always', '--tags'])
+	git_branch = run_command([git.path(), 'rev-parse', '--abbrev-ref', 'HEAD'])
+	if git_commit_hash.returncode() == 0 and git_branch.returncode() == 0
+		version = '"@0@ (" __DATE__ ", branch \'@1@\')"'.format(git_commit_hash.stdout().strip(), git_branch.stdout().strip())
+	endif
 endif
 add_project_arguments('-DSWAY_VERSION=@0@'.format(version), language: 'c')