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git-svn: minor cleanups, extra error-checking

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While we're at it, read_repo_config has been added and
expanded to handle case where command-line arguments are
optional to Getopt::Long

Signed-off-by: Eric Wong <normalperson@yhbt.net>
This commit is contained in:
Eric Wong 2006-05-24 01:40:37 -07:00
parent 883d0a78d2
commit b8c92cadda
1 changed files with 46 additions and 36 deletions
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82
contrib/git-svn/git-svn.perl
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@ -77,39 +77,15 @@ for (my $i = 0; $i < @ARGV; $i++) {
my %opts = %{$cmd{$cmd}->[2]} if (defined $cmd);
# convert GetOpt::Long specs for use by git-repo-config
foreach my $o (keys %opts) {
my $v = $opts{$o};
my ($key) = ($o =~ /^([a-z\-]+)/);
$key =~ s/-//g;
my $arg = 'git-repo-config';
$arg .= ' --int' if ($o =~ /=i$/);
$arg .= ' --bool' if ($o !~ /=[sfi]$/);
if (ref $v eq 'ARRAY') {
chomp(my @tmp = `$arg --get-all svn.$key`);
@$v = @tmp if @tmp;
} else {
chomp(my $tmp = `$arg --get svn.$key`);
if ($tmp && !($arg =~ / --bool / && $tmp eq 'false')) {
$$v = $tmp;
}
}
}
read_repo_config(\%opts);
GetOptions(%opts, 'help|H|h' => \$_help,
'version|V' => \$_version,
'id|i=s' => \$GIT_SVN) or exit 1;
$GIT_SVN ||= $ENV{GIT_SVN_ID} || 'git-svn';
$GIT_SVN_DIR = "$GIT_DIR/svn/$GIT_SVN";
$GIT_SVN_INDEX = "$GIT_SVN_DIR/index";
$SVN_URL = undef;
$REV_DIR = "$GIT_SVN_DIR/revs";
$SVN_WC = "$GIT_SVN_DIR/tree";
usage(0) if $_help;
version() if $_version;
usage(1) unless defined $cmd;
init_vars();
load_authors() if $_authors;
load_all_refs() if $_branch_all_refs;
svn_compat_check();
@ -132,7 +108,7 @@ Usage: $0 <command> [options] [arguments]\n
print $fd ' ',pack('A13',$_),$cmd{$_}->[1],"\n";
foreach (keys %{$cmd{$_}->[2]}) {
# prints out arguments as they should be passed:
my $x = s#=s$## ? '<arg>' : s#=i$## ? '<num>' : '';
my $x = s#[:=]s$## ? '<arg>' : s#[:=]i$## ? '<num>' : '';
print $fd ' ' x 17, join(', ', map { length $_ > 1 ?
"--$_" : "-$_" }
split /\|/,$_)," $x\n";
@ -220,9 +196,10 @@ sub rebuild {
sys(@svn_up,"-r$newest_rev");
$ENV{GIT_INDEX_FILE} = $GIT_SVN_INDEX;
index_changes();
exec('git-write-tree');
exec('git-write-tree') or croak $!;
}
waitpid $pid, 0;
croak $? if $?;
if ($_upgrade) {
print STDERR <<"";
@ -295,6 +272,7 @@ sub fetch {
unless (-e "$GIT_DIR/refs/heads/master") {
sys(qw(git-update-ref refs/heads/master),$last_commit);
}
close $svn_log->{fh};
return $last;
}
@ -830,7 +808,7 @@ sub svn_log_raw {
exec (qw(svn log), @log_args) or croak $!
}
waitpid $pid, 0;
croak if $?;
croak $? if $?;
seek $log_fh, 0, 0 or croak $!;
return { state => 'sep', fh => $log_fh };
}
@ -1090,7 +1068,7 @@ sub git_commit {
$ENV{GIT_INDEX_FILE} = $GIT_SVN_INDEX;
index_changes();
chomp(my $tree = `git-write-tree`);
croak if $?;
croak $? if $?;
if (exists $tree_map{$tree}) {
my %seen_parent = map { $_ => 1 } @exec_parents;
foreach (@{$tree_map{$tree}}) {
@ -1118,7 +1096,7 @@ sub git_commit {
exec @exec or croak $!;
}
waitpid($pid,0);
croak if $?;
croak $? if $?;
$out_fh->flush == 0 or croak $!;
seek $out_fh, 0, 0 or croak $!;
@ -1134,7 +1112,7 @@ sub git_commit {
close STDERR;
close STDOUT;
exec 'git-rev-parse','--verify',
"refs/remotes/$GIT_SVN^0";
"refs/remotes/$GIT_SVN^0" or croak $!;
}
waitpid $pid, 0;
push @update_ref, $primary_parent unless $?;
@ -1190,7 +1168,7 @@ sub blob_to_file {
if ($pid == 0) {
open STDOUT, '>&', $blob_fh or croak $!;
exec('git-cat-file','blob',$blob);
exec('git-cat-file','blob',$blob) or croak $!;
}
waitpid $pid, 0;
croak $? if $?;
@ -1202,7 +1180,7 @@ sub safe_qx {
my $pid = open my $child, '-|';
defined $pid or croak $!;
if ($pid == 0) {
exec(@_) or croak $?;
exec(@_) or croak $!;
}
my @ret = (<$child>);
close $child or croak $?;
@ -1252,7 +1230,7 @@ sub check_upgrade_needed {
defined $pid or croak $!;
if ($pid == 0) {
close STDERR;
exec('git-rev-parse',"$GIT_SVN-HEAD") or croak $?;
exec('git-rev-parse',"$GIT_SVN-HEAD") or croak $!;
}
my @ret = (<$child>);
close $child or croak $?;
@ -1276,7 +1254,7 @@ sub map_tree_joins {
defined $pid or croak $!;
if ($pid == 0) {
exec(qw(git-rev-list --topo-order --pretty=raw), $br)
or croak $?;
or croak $!;
}
while (<$pipe>) {
if (/^commit ($sha1)$/o) {
@ -1352,6 +1330,38 @@ sub migration_check {
print "Done upgrading.\n";
}
sub init_vars {
$GIT_SVN ||= $ENV{GIT_SVN_ID} || 'git-svn';
$GIT_SVN_DIR = "$GIT_DIR/svn/$GIT_SVN";
$GIT_SVN_INDEX = "$GIT_SVN_DIR/index";
$SVN_URL = undef;
$REV_DIR = "$GIT_SVN_DIR/revs";
$SVN_WC = "$GIT_SVN_DIR/tree";
}
# convert GetOpt::Long specs for use by git-repo-config
sub read_repo_config {
return unless -d $GIT_DIR;
my $opts = shift;
foreach my $o (keys %$opts) {
my $v = $opts->{$o};
my ($key) = ($o =~ /^([a-z\-]+)/);
$key =~ s/-//g;
my $arg = 'git-repo-config';
$arg .= ' --int' if ($o =~ /[:=]i$/);
$arg .= ' --bool' if ($o !~ /[:=][sfi]$/);
if (ref $v eq 'ARRAY') {
chomp(my @tmp = `$arg --get-all svn.$key`);
@$v = @tmp if @tmp;
} else {
chomp(my $tmp = `$arg --get svn.$key`);
if ($tmp && !($arg =~ / --bool / && $tmp eq 'false')) {
$$v = $tmp;
}
}
}
}
__END__
Data structures: