* [PATCH] public-inbox-index: resolve git directory if run inside one
@ 2015-08-30 1:04 7% Eric Wong
0 siblings, 0 replies; 1+ results
From: Eric Wong @ 2015-08-30 1:04 UTC (permalink / raw)
To: meta
I often forget to pass the correct path to a git directory
or run from inside one. Fortunately git is script-friendly
and allows easily resolving the correct GIT_DIR path.
---
public-inbox-index | 35 +++++++++++++++++++++++++++++++++--
1 file changed, 33 insertions(+), 2 deletions(-)
diff --git a/public-inbox-index b/public-inbox-index
index f39ad9e..44814e3 100755
--- a/public-inbox-index
+++ b/public-inbox-index
@@ -15,11 +15,42 @@ if ($@) {
print STDERR "Search::Xapian required for $0\n";
exit 1;
}
+my @dirs;
+
+sub resolve_git_dir {
+ my ($cd) = @_;
+ my @cmd = qw(git rev-parse --git-dir);
+ my $cmd = join(' ', @cmd);
+ my $pid = open my $fh, '-|';
+ defined $pid or die "forking $cmd failed: $!\n";
+ if ($pid == 0) {
+ if (defined $cd) {
+ chdir $cd or die "chdir $cd failed: $!\n";
+ }
+ exec @cmd;
+ die "Failed to exec $cmd: $!\n";
+ } else {
+ my $dir = eval {
+ local $/;
+ <$fh>;
+ };
+ close $fh or die "error in $cmd: $!\n";
+ chomp $dir;
+ return $cd if ($dir eq '.' && defined $cd);
+ $dir;
+ }
+}
+
+if (@ARGV) {
+ @dirs = map { resolve_git_dir($_) } @ARGV;
+} else {
+ @dirs = (resolve_git_dir());
+}
sub usage { print STDERR "Usage: $usage\n"; exit 1 }
-usage() unless @ARGV;
+usage() unless @dirs;
-foreach my $dir (@ARGV) {
+foreach my $dir (@dirs) {
index_dir($dir);
}
--
EW
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