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authorMasatake Osanai <unpush@gmail.com>2011-02-14 22:13:04 (GMT)
committerJunio C Hamano <gitster@pobox.com>2011-02-14 23:28:13 (GMT)
commit48d9e6ae4bcb6fd08562595aed47bef7326ec144 (patch)
tree79de4fa2c09d73b2ea793db9b0bcd64bcbba1941 /perl
parent9971d6d52c5afeb8ba60ae6ddcffb34af23eeadd (diff)
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perl: command_bidi_pipe() method should set-up git environmens
When command_input_pipe and command_output_pipe are used as a method of a Git::repository instance, they eventually call into _cmd_exec method that sets up the execution environment such as GIT_DIR, GIT_WORK_TREE environment variables and the current working directory in the child process that interacts with the repository. command_bidi_pipe however didn't expect to be called as such, and lacked all these set-up. Because of this, a program that did this did not work as expected: my $repo = Git->repository(Directory => '/some/where/else'); my ($pid, $in, $out, $ctx) = $repo->command_bidi_pipe(qw(hash-object -w --stdin-paths)); This patch refactors the _cmd_exec into _setup_git_cmd_env that sets up the execution environment, and makes _cmd_exec and command_bidi_pipe to use it. Note that unlike _cmd_exec that execv's a git command as an external process, command_bidi_pipe is called from the main line of control, and the execution environment needs to be restored after open2() does its magic. Signed-off-by: Masatake Osanai <unpush@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'perl')
-rw-r--r--perl/Git.pm25
1 files changed, 20 insertions, 5 deletions
diff --git a/perl/Git.pm b/perl/Git.pm
index 205e48a..a86ab70 100644
--- a/perl/Git.pm
+++ b/perl/Git.pm
@@ -99,7 +99,7 @@ increase notwithstanding).
use Carp qw(carp croak); # but croak is bad - throw instead
use Error qw(:try);
-use Cwd qw(abs_path);
+use Cwd qw(abs_path cwd);
use IPC::Open2 qw(open2);
use Fcntl qw(SEEK_SET SEEK_CUR);
}
@@ -396,7 +396,16 @@ See C<command_close_bidi_pipe()> for details.
sub command_bidi_pipe {
my ($pid, $in, $out);
+ my ($self) = _maybe_self(@_);
+ local %ENV = %ENV;
+ my $cwd_save = undef;
+ if ($self) {
+ shift;
+ $cwd_save = cwd();
+ _setup_git_cmd_env($self);
+ }
$pid = open2($in, $out, 'git', @_);
+ chdir($cwd_save) if $cwd_save;
return ($pid, $in, $out, join(' ', @_));
}
@@ -843,7 +852,7 @@ sub _open_hash_and_insert_object_if_needed {
($self->{hash_object_pid}, $self->{hash_object_in},
$self->{hash_object_out}, $self->{hash_object_ctx}) =
- command_bidi_pipe(qw(hash-object -w --stdin-paths --no-filters));
+ $self->command_bidi_pipe(qw(hash-object -w --stdin-paths --no-filters));
}
sub _close_hash_and_insert_object {
@@ -932,7 +941,7 @@ sub _open_cat_blob_if_needed {
($self->{cat_blob_pid}, $self->{cat_blob_in},
$self->{cat_blob_out}, $self->{cat_blob_ctx}) =
- command_bidi_pipe(qw(cat-file --batch));
+ $self->command_bidi_pipe(qw(cat-file --batch));
}
sub _close_cat_blob {
@@ -1279,6 +1288,14 @@ sub _command_common_pipe {
# for the given repository and execute the git command.
sub _cmd_exec {
my ($self, @args) = @_;
+ _setup_git_cmd_env($self);
+ _execv_git_cmd(@args);
+ die qq[exec "@args" failed: $!];
+}
+
+# set up the appropriate state for git command
+sub _setup_git_cmd_env {
+ my $self = shift;
if ($self) {
$self->repo_path() and $ENV{'GIT_DIR'} = $self->repo_path();
$self->repo_path() and $self->wc_path()
@@ -1286,8 +1303,6 @@ sub _cmd_exec {
$self->wc_path() and chdir($self->wc_path());
$self->wc_subdir() and chdir($self->wc_subdir());
}
- _execv_git_cmd(@args);
- die qq[exec "@args" failed: $!];
}
# Execute the given Git command ($_[0]) with arguments ($_[1..])