From 48d9e6ae4bcb6fd08562595aed47bef7326ec144 Mon Sep 17 00:00:00 2001 From: Masatake Osanai Date: Tue, 15 Feb 2011 07:13:04 +0900 Subject: 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) = $repo->command_bidi_pipe(qw(hash-object -w --stdin-paths)); This patch refactors the _cmd_exec into _setup_git_cmd_env that sets up the execution environment, and makes _cmd_exec and command_bidi_pipe to use it. Note that unlike _cmd_exec that execv's a git command as an external process, command_bidi_pipe is called from the main line of control, and the execution environment needs to be restored after open2() does its magic. Signed-off-by: Masatake Osanai Signed-off-by: Junio C Hamano --- perl/Git.pm | 25 ++++++++++++++++++++----- 1 file changed, 20 insertions(+), 5 deletions(-) (limited to 'perl') diff --git a/perl/Git.pm b/perl/Git.pm index 205e48aa3..a86ab709c 100644 --- a/perl/Git.pm +++ b/perl/Git.pm @@ -99,7 +99,7 @@ increase notwithstanding). use Carp qw(carp croak); # but croak is bad - throw instead use Error qw(:try); -use Cwd qw(abs_path); +use Cwd qw(abs_path cwd); use IPC::Open2 qw(open2); use Fcntl qw(SEEK_SET SEEK_CUR); } @@ -396,7 +396,16 @@ See C for details. sub command_bidi_pipe { my ($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..]) -- cgit v1.2.1