X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=Debian%2FDgit.pm;h=aef0112aebb975ce49cca55699808fbe6cf99922;hb=0b0c7e0ce2f0f17cacef7eb3159fc9de1850bf37;hp=314bd8c712c6159fe031bfe8073a62f902666f84;hpb=e9a3ab8ab115a663975026c84332a1d0bdc7264b;p=dgit.git

diff --git a/Debian/Dgit.pm b/Debian/Dgit.pm
index 314bd8c7..aef0112a 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   ();
@@ -36,7 +37,7 @@ BEGIN {
 
     $VERSION     = 1.00;
     @ISA         = qw(Exporter);
-    @EXPORT      = qw(setup_sigwarn
+    @EXPORT      = qw(setup_sigwarn forkcheck_setup forkcheck_mainprocess
 		      dep14_version_mangle
                       debiantags debiantag_old debiantag_new
 		      server_branch server_ref
@@ -45,16 +46,19 @@ 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
                       $package_re $component_re $deliberately_re
+		      $distro_re $versiontag_re $series_filename_re
                       $branchprefix
                       initdebug enabledebug enabledebuglevel
                       printdebug debugcmd
                       $debugprefix *debuglevel *DEBUG
-                      shellquote printcmd messagequote);
+                      shellquote printcmd messagequote
+                      $negate_harmful_gitattrs
+                      workarea_setup);
     # implicitly uses $main::us
     %EXPORT_TAGS = ( policyflags => [qw(NOFFCHECK FRESHREPO NOCOMMITCHECK)] );
     @EXPORT_OK   = @{ $EXPORT_TAGS{policyflags} };
@@ -65,7 +69,10 @@ our @EXPORT_OK;
 our $package_re = '[0-9a-z][-+.0-9a-z]*';
 our $component_re = '[0-9a-zA-Z][-+.0-9a-zA-Z]*';
 our $deliberately_re = "(?:TEST-)?$package_re";
+our $distro_re = $component_re;
+our $versiontag_re = qr{[-+.\%_0-9a-zA-Z/]+};
 our $branchprefix = 'dgit';
+our $series_filename_re = qr{(?:^|\.)series(?!\n)$}s;
 
 # policy hook exit status bits
 # see dgit-repos-server head comment for documentation
@@ -78,10 +85,23 @@ sub NOCOMMITCHECK () { return 0x8; }
 our $debugprefix;
 our $debuglevel = 0;
 
+our $negate_harmful_gitattrs = "-text -eol -crlf -ident -filter";
+
+our $forkcheck_mainprocess;
+
+sub forkcheck_setup () {
+    $forkcheck_mainprocess = $$;
+}
+
+sub forkcheck_mainprocess () {
+    # You must have called forkcheck_setup or setup_sigwarn already
+    getppid != $forkcheck_mainprocess;
+}
+
 sub setup_sigwarn () {
-    our $sigwarn_mainprocess = $$;
+    forkcheck_setup();
     $SIG{__WARN__} = sub { 
-	die $_[0] unless getppid == $sigwarn_mainprocess;
+	die $_[0] if forkcheck_mainprocess;
     };
 }
 
@@ -123,6 +143,7 @@ sub messagequote ($) {
 sub shellquote {
     my @out;
     local $_;
+    defined or confess 'internal error' foreach @_;
     foreach my $a (@_) {
 	$_ = $a;
 	if (!length || m{[^-=_./:0-9a-z]}i) {
@@ -260,6 +281,12 @@ sub failedcmd {
     fail failedcmd_waitstatus();
 }
 
+sub runcmd {
+    debugcmd "+",@_;
+    $!=0; $?=-1;
+    failedcmd @_ if system @_;
+}
+
 sub cmdoutput_errok {
     confess Dumper(\@_)." ?" if grep { !defined } @_;
     debugcmd "|",@_;
@@ -311,6 +338,7 @@ sub git_rev_parse ($) {
 sub git_cat_file ($) {
     my ($objname) = @_;
     # => ($type, $data) or ('missing', undef)
+    # in scalar context, just the data
     our ($gcf_pid, $gcf_i, $gcf_o);
     if (!$gcf_pid) {
 	my @cmd = qw(git cat-file --batch);
@@ -389,4 +417,26 @@ sub is_fast_fwd ($$) {
     }
 }
 
+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;