X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=dgit.git;a=blobdiff_plain;f=Debian%2FDgit.pm;h=3d97848ff2df75b96491a8fc2ac2d6bd5224a86a;hp=dcecbd1a840e7f0c7718b398d585e2e4d4e3fe77;hb=be85ba38f1d9099179b6b6cc7cafac769ccf11da;hpb=166121d66d38a3f6584222a03558493c1a23de72

diff --git a/Debian/Dgit.pm b/Debian/Dgit.pm
index dcecbd1a..3d97848f 100644
--- a/Debian/Dgit.pm
+++ b/Debian/Dgit.pm
@@ -29,6 +29,7 @@ use Config;
 use Digest::SHA;
 use Data::Dumper;
 use IPC::Open2;
+use File::Path;
 
 BEGIN {
     use Exporter   ();
@@ -45,7 +46,7 @@ BEGIN {
                       fail ensuredir executable_on_path
                       waitstatusmsg failedcmd_waitstatus
 		      failedcmd_report_cmd failedcmd
-                      cmdoutput cmdoutput_errok
+                      runcmd cmdoutput cmdoutput_errok
                       git_rev_parse git_cat_file
 		      git_get_ref git_for_each_ref
                       git_for_each_tag_referring is_fast_fwd
@@ -55,7 +56,10 @@ BEGIN {
                       initdebug enabledebug enabledebuglevel
                       printdebug debugcmd
                       $debugprefix *debuglevel *DEBUG
-                      shellquote printcmd messagequote);
+                      shellquote printcmd messagequote
+                      $negate_harmful_gitattrs
+		      git_slurp_config_src
+                      workarea_setup);
     # implicitly uses $main::us
     %EXPORT_TAGS = ( policyflags => [qw(NOFFCHECK FRESHREPO NOCOMMITCHECK)] );
     @EXPORT_OK   = @{ $EXPORT_TAGS{policyflags} };
@@ -82,6 +86,8 @@ sub NOCOMMITCHECK () { return 0x8; }
 our $debugprefix;
 our $debuglevel = 0;
 
+our $negate_harmful_gitattrs = "-text -eol -crlf -ident -filter";
+
 our $forkcheck_mainprocess;
 
 sub forkcheck_setup () {
@@ -276,6 +282,12 @@ sub failedcmd {
     fail failedcmd_waitstatus();
 }
 
+sub runcmd {
+    debugcmd "+",@_;
+    $!=0; $?=-1;
+    failedcmd @_ if system @_;
+}
+
 sub cmdoutput_errok {
     confess Dumper(\@_)." ?" if grep { !defined } @_;
     debugcmd "|",@_;
@@ -406,4 +418,50 @@ sub is_fast_fwd ($$) {
     }
 }
 
+sub git_slurp_config_src ($) {
+    my ($src) = @_;
+    # returns $r such that $r->{KEY}[] = VALUE
+    my @cmd = (qw(git config -z --get-regexp), "--$src", qw(.*));
+    debugcmd "|",@cmd;
+
+    local ($debuglevel) = $debuglevel-2;
+    local $/="\0";
+
+    my $r = { };
+    open GITS, "-|", @cmd or die $!;
+    while (<GITS>) {
+	chomp or die;
+	printdebug "=> ", (messagequote $_), "\n";
+	m/\n/ or die "$_ ?";
+	push @{ $r->{$`} }, $'; #';
+    }
+    $!=0; $?=0;
+    close GITS
+	or ($!==0 && $?==256)
+	or failedcmd @cmd;
+    return $r;
+}
+
+sub workarea_setup ($) {
+    # for use in the workarea
+    my ($t_local_git_cfg) = @_;
+    # should be run in a directory .git/FOO/BAR of a working tree
+    runcmd qw(git init -q);
+    runcmd qw(git config gc.auto 0);
+    foreach my $copy (qw(user.email user.name user.useConfigOnly
+                         core.sharedRepository
+                         core.compression core.looseCompression
+                         core.bigFileThreshold core.fsyncObjectFiles)) {
+	my $v = $t_local_git_cfg->{$copy};
+	next unless $v;
+	runcmd qw(git config), $copy, $_ foreach @$v;
+    }
+    rmtree('.git/objects');
+    symlink '../../../../objects','.git/objects' or die $!;
+    ensuredir '.git/info';
+    open GA, "> .git/info/attributes" or die $!;
+    print GA "* $negate_harmful_gitattrs\n" or die $!;
+    close GA or die $!;
+}
+
 1;