From b26098fc2f76131f4258d800e0892e87f9138331 Mon Sep 17 00:00:00 2001 From: Eric Wong Date: Fri, 14 Oct 2016 00:27:53 +0000 Subject: git-svn: reduce scope of input record separator change Reducing the scope of where we change the record separator ($/) avoids bugs in calls which rely on the input record separator further down, such as the 'chomp' usage in command_oneline. This is necessary for a future change to git-svn, but exists in Git.pm since it seems useful for gitweb and our other Perl scripts, too. Signed-off-by: Eric Wong diff --git a/git-svn.perl b/git-svn.perl index 4d41d22..6d1a142 100755 --- a/git-svn.perl +++ b/git-svn.perl @@ -44,6 +44,7 @@ use Git qw( command_close_pipe command_bidi_pipe command_close_bidi_pipe + get_record ); BEGIN { @@ -1880,10 +1881,9 @@ sub get_commit_entry { { require Encode; # SVN requires messages to be UTF-8 when entering the repo - local $/; open $log_fh, '<', $commit_msg or croak $!; binmode $log_fh; - chomp($log_entry{log} = <$log_fh>); + chomp($log_entry{log} = get_record($log_fh, undef)); my $enc = Git::config('i18n.commitencoding') || 'UTF-8'; my $msg = $log_entry{log}; diff --git a/perl/Git.pm b/perl/Git.pm index ce7e4e8..d2c5a8d 100644 --- a/perl/Git.pm +++ b/perl/Git.pm @@ -59,7 +59,7 @@ require Exporter; command_bidi_pipe command_close_bidi_pipe version exec_path html_path hash_object git_cmd_try remote_refs prompt - get_tz_offset + get_tz_offset get_record credential credential_read credential_write temp_acquire temp_is_locked temp_release temp_reset temp_path); @@ -538,6 +538,20 @@ sub get_tz_offset { return sprintf("%s%02d%02d", $sign, (gmtime(abs($t - $gm)))[2,1]); } +=item get_record ( FILEHANDLE, INPUT_RECORD_SEPARATOR ) + +Read one record from FILEHANDLE delimited by INPUT_RECORD_SEPARATOR, +removing any trailing INPUT_RECORD_SEPARATOR. + +=cut + +sub get_record { + my ($fh, $rs) = @_; + local $/ = $rs; + my $rec = <$fh>; + chomp $rec if defined $rs; + $rec; +} =item prompt ( PROMPT , ISPASSWORD ) diff --git a/perl/Git/SVN/Editor.pm b/perl/Git/SVN/Editor.pm index 4c4199a..0df16ed 100644 --- a/perl/Git/SVN/Editor.pm +++ b/perl/Git/SVN/Editor.pm @@ -7,7 +7,9 @@ use SVN::Delta; use Carp qw/croak/; use Git qw/command command_oneline command_noisy command_output_pipe command_input_pipe command_close_pipe - command_bidi_pipe command_close_bidi_pipe/; + command_bidi_pipe command_close_bidi_pipe + get_record/; + BEGIN { @ISA = qw(SVN::Delta::Editor); } @@ -57,11 +59,9 @@ sub generate_diff { push @diff_tree, "-l$_rename_limit" if defined $_rename_limit; push @diff_tree, $tree_a, $tree_b; my ($diff_fh, $ctx) = command_output_pipe(@diff_tree); - local $/ = "\0"; my $state = 'meta'; my @mods; - while (<$diff_fh>) { - chomp $_; # this gets rid of the trailing "\0" + while (defined($_ = get_record($diff_fh, "\0"))) { if ($state eq 'meta' && /^:(\d{6})\s(\d{6})\s ($::sha1)\s($::sha1)\s ([MTCRAD])\d*$/xo) { @@ -173,9 +173,7 @@ sub rmdirs { my ($fh, $ctx) = command_output_pipe(qw/ls-tree --name-only -r -z/, $self->{tree_b}); - local $/ = "\0"; - while (<$fh>) { - chomp; + while (defined($_ = get_record($fh, "\0"))) { my @dn = split m#/#, $_; while (pop @dn) { delete $rm->{join '/', @dn}; diff --git a/perl/Git/SVN/Fetcher.pm b/perl/Git/SVN/Fetcher.pm index d8c21ad..64e900a 100644 --- a/perl/Git/SVN/Fetcher.pm +++ b/perl/Git/SVN/Fetcher.pm @@ -9,7 +9,8 @@ use Carp qw/croak/; use File::Basename qw/dirname/; use Git qw/command command_oneline command_noisy command_output_pipe command_input_pipe command_close_pipe - command_bidi_pipe command_close_bidi_pipe/; + command_bidi_pipe command_close_bidi_pipe + get_record/; BEGIN { @ISA = qw(SVN::Delta::Editor); } @@ -86,11 +87,9 @@ sub _mark_empty_symlinks { my $printed_warning; chomp(my $empty_blob = `git hash-object -t blob --stdin < /dev/null`); my ($ls, $ctx) = command_output_pipe(qw/ls-tree -r -z/, $cmt); - local $/ = "\0"; my $pfx = defined($switch_path) ? $switch_path : $git_svn->path; $pfx .= '/' if length($pfx); - while (<$ls>) { - chomp; + while (defined($_ = get_record($ls, "\0"))) { s/\A100644 blob $empty_blob\t//o or next; unless ($printed_warning) { print STDERR "Scanning for empty symlinks, ", @@ -179,9 +178,7 @@ sub delete_entry { my ($ls, $ctx) = command_output_pipe(qw/ls-tree -r --name-only -z/, $tree); - local $/ = "\0"; - while (<$ls>) { - chomp; + while (defined($_ = get_record($ls, "\0"))) { my $rmpath = "$gpath/$_"; $self->{gii}->remove($rmpath); print "\tD\t$rmpath\n" unless $::_q; @@ -247,9 +244,7 @@ sub add_directory { my ($ls, $ctx) = command_output_pipe(qw/ls-tree -r --name-only -z/, $self->{c}); - local $/ = "\0"; - while (<$ls>) { - chomp; + while (defined($_ = get_record($ls, "\0"))) { $self->{gii}->remove($_); print "\tD\t$_\n" unless $::_q; push @deleted_gpath, $gpath; -- cgit v0.10.2-6-g49f6 From 112423eb905cf28c9445781a7647ba590d597ab3 Mon Sep 17 00:00:00 2001 From: Eric Wong Date: Fri, 14 Oct 2016 00:27:54 +0000 Subject: git-svn: "git worktree" awareness git-svn internals were previously not aware of repository layout differences for users of the "git worktree" command. Introduce this awareness by using "git rev-parse --git-path" instead of relying on outdated uses of GIT_DIR and friends. Thanks-to: Duy Nguyen Reported-by: Mathieu Arnold Signed-off-by: Eric Wong diff --git a/git-svn.perl b/git-svn.perl index 6d1a142..fa42364 100755 --- a/git-svn.perl +++ b/git-svn.perl @@ -1700,7 +1700,7 @@ sub cmd_gc { "files will not be compressed.\n"; } File::Find::find({ wanted => \&gc_directory, no_chdir => 1}, - "$ENV{GIT_DIR}/svn"); + Git::SVN::svn_dir()); } ########################### utility functions ######################### @@ -1734,7 +1734,7 @@ sub post_fetch_checkout { return unless verify_ref('HEAD^0'); return if $ENV{GIT_DIR} !~ m#^(?:.*/)?\.git$#; - my $index = $ENV{GIT_INDEX_FILE} || "$ENV{GIT_DIR}/index"; + my $index = command_oneline(qw(rev-parse --git-path index)); return if -f $index; return if command_oneline(qw/rev-parse --is-inside-work-tree/) eq 'false'; @@ -1836,8 +1836,9 @@ sub get_tree_from_treeish { sub get_commit_entry { my ($treeish) = shift; my %log_entry = ( log => '', tree => get_tree_from_treeish($treeish) ); - my $commit_editmsg = "$ENV{GIT_DIR}/COMMIT_EDITMSG"; - my $commit_msg = "$ENV{GIT_DIR}/COMMIT_MSG"; + my @git_path = qw(rev-parse --git-path); + my $commit_editmsg = command_oneline(@git_path, 'COMMIT_EDITMSG'); + my $commit_msg = command_oneline(@git_path, 'COMMIT_MSG'); open my $log_fh, '>', $commit_editmsg or croak $!; my $type = command_oneline(qw/cat-file -t/, $treeish); diff --git a/perl/Git/SVN.pm b/perl/Git/SVN.pm index 018beb8..499e84b 100644 --- a/perl/Git/SVN.pm +++ b/perl/Git/SVN.pm @@ -807,10 +807,15 @@ sub get_fetch_range { (++$min, $max); } +sub svn_dir { + command_oneline(qw(rev-parse --git-path svn)); +} + sub tmp_config { my (@args) = @_; - my $old_def_config = "$ENV{GIT_DIR}/svn/config"; - my $config = "$ENV{GIT_DIR}/svn/.metadata"; + my $svn_dir = svn_dir(); + my $old_def_config = "$svn_dir/config"; + my $config = "$svn_dir/.metadata"; if (! -f $config && -f $old_def_config) { rename $old_def_config, $config or die "Failed rename $old_def_config => $config: $!\n"; @@ -1671,7 +1676,7 @@ sub tie_for_persistent_memoization { return if $memoized; $memoized = 1; - my $cache_path = "$ENV{GIT_DIR}/svn/.caches/"; + my $cache_path = svn_dir() . '/.caches/'; mkpath([$cache_path]) unless -d $cache_path; my %lookup_svn_merge_cache; @@ -1712,7 +1717,7 @@ sub tie_for_persistent_memoization { sub clear_memoized_mergeinfo_caches { die "Only call this method in non-memoized context" if ($memoized); - my $cache_path = "$ENV{GIT_DIR}/svn/.caches/"; + my $cache_path = svn_dir() . '/.caches/'; return unless -d $cache_path; for my $cache_file (("$cache_path/lookup_svn_merge", @@ -2446,12 +2451,13 @@ sub _new { "refs/remotes/$prefix$default_ref_id"; } $_[1] = $repo_id; - my $dir = "$ENV{GIT_DIR}/svn/$ref_id"; + my $svn_dir = svn_dir(); + my $dir = "$svn_dir/$ref_id"; - # Older repos imported by us used $GIT_DIR/svn/foo instead of - # $GIT_DIR/svn/refs/remotes/foo when tracking refs/remotes/foo + # Older repos imported by us used $svn_dir/foo instead of + # $svn_dir/refs/remotes/foo when tracking refs/remotes/foo if ($ref_id =~ m{^refs/remotes/(.+)}) { - my $old_dir = "$ENV{GIT_DIR}/svn/$1"; + my $old_dir = "$svn_dir/$1"; if (-d $old_dir && ! -d $dir) { $dir = $old_dir; } @@ -2461,7 +2467,7 @@ sub _new { mkpath([$dir]); my $obj = bless { ref_id => $ref_id, dir => $dir, index => "$dir/index", - config => "$ENV{GIT_DIR}/svn/config", + config => "$svn_dir/config", map_root => "$dir/.rev_map", repo_id => $repo_id }, $class; # Ensure it gets canonicalized diff --git a/perl/Git/SVN/Migration.pm b/perl/Git/SVN/Migration.pm index cf6ffa7..dc90f6a 100644 --- a/perl/Git/SVN/Migration.pm +++ b/perl/Git/SVN/Migration.pm @@ -44,7 +44,9 @@ use Git qw( command_noisy command_output_pipe command_close_pipe + command_oneline ); +use Git::SVN; sub migrate_from_v0 { my $git_dir = $ENV{GIT_DIR}; @@ -55,7 +57,9 @@ sub migrate_from_v0 { chomp; my ($id, $orig_ref) = ($_, $_); next unless $id =~ s#^refs/heads/(.+)-HEAD$#$1#; - next unless -f "$git_dir/$id/info/url"; + my $info_url = command_oneline(qw(rev-parse --git-path), + "$id/info/url"); + next unless -f $info_url; my $new_ref = "refs/remotes/$id"; if (::verify_ref("$new_ref^0")) { print STDERR "W: $orig_ref is probably an old ", @@ -82,7 +86,7 @@ sub migrate_from_v1 { my $git_dir = $ENV{GIT_DIR}; my $migrated = 0; return $migrated unless -d $git_dir; - my $svn_dir = "$git_dir/svn"; + my $svn_dir = Git::SVN::svn_dir(); # just in case somebody used 'svn' as their $id at some point... return $migrated if -d $svn_dir && ! -f "$svn_dir/info/url"; @@ -97,27 +101,28 @@ sub migrate_from_v1 { my $x = $_; next unless $x =~ s#^refs/remotes/##; chomp $x; - next unless -f "$git_dir/$x/info/url"; - my $u = eval { ::file_to_s("$git_dir/$x/info/url") }; + my $info_url = command_oneline(qw(rev-parse --git-path), + "$x/info/url"); + next unless -f $info_url; + my $u = eval { ::file_to_s($info_url) }; next unless $u; - my $dn = dirname("$git_dir/svn/$x"); + my $dn = dirname("$svn_dir/$x"); mkpath([$dn]) unless -d $dn; if ($x eq 'svn') { # they used 'svn' as GIT_SVN_ID: - mkpath(["$git_dir/svn/svn"]); + mkpath(["$svn_dir/svn"]); print STDERR " - $git_dir/$x/info => ", - "$git_dir/svn/$x/info\n"; - rename "$git_dir/$x/info", "$git_dir/svn/$x/info" or + "$svn_dir/$x/info\n"; + rename "$git_dir/$x/info", "$svn_dir/$x/info" or croak "$!: $x"; # don't worry too much about these, they probably # don't exist with repos this old (save for index, # and we can easily regenerate that) foreach my $f (qw/unhandled.log index .rev_db/) { - rename "$git_dir/$x/$f", "$git_dir/svn/$x/$f"; + rename "$git_dir/$x/$f", "$svn_dir/$x/$f"; } } else { - print STDERR " - $git_dir/$x => $git_dir/svn/$x\n"; - rename "$git_dir/$x", "$git_dir/svn/$x" or - croak "$!: $x"; + print STDERR " - $git_dir/$x => $svn_dir/$x\n"; + rename "$git_dir/$x", "$svn_dir/$x" or croak "$!: $x"; } $migrated++; } @@ -139,9 +144,10 @@ sub read_old_urls { push @dir, $_; } } + my $svn_dir = Git::SVN::svn_dir(); foreach (@dir) { my $x = $_; - $x =~ s!^\Q$ENV{GIT_DIR}\E/svn/!!o; + $x =~ s!^\Q$svn_dir\E/!!o; read_old_urls($l_map, $x, $_); } } @@ -150,7 +156,7 @@ sub migrate_from_v2 { my @cfg = command(qw/config -l/); return if grep /^svn-remote\..+\.url=/, @cfg; my %l_map; - read_old_urls(\%l_map, '', "$ENV{GIT_DIR}/svn"); + read_old_urls(\%l_map, '', Git::SVN::svn_dir()); my $migrated = 0; require Git::SVN; @@ -239,7 +245,8 @@ sub minimize_connections { } } if (@emptied) { - my $file = $ENV{GIT_CONFIG} || "$ENV{GIT_DIR}/config"; + my $file = $ENV{GIT_CONFIG} || + command_oneline(qw(rev-parse --git-path config)); print STDERR <