13 our ($VERSION, @ISA, @EXPORT, @EXPORT_OK, %EXPORT_TAGS);
17 @EXPORT = qw(debiantag server_branch server_ref
18 stat_exists git_for_each_ref
19 $package_re $component_re $branchprefix
20 initdebug enabledebug enabledebuglevel
22 $debugprefix *debuglevel *DEBUG
24 %EXPORT_TAGS = ( policyflags => [qw(NOFFCHECK FRESHREPO)] );
25 @EXPORT_OK = @{ $EXPORT_TAGS{policyflags} };
30 our $package_re = '[0-9a-z][-+.0-9a-z]*';
31 our $component_re = '[0-9a-zA-Z][-+.0-9a-zA-Z]*';
32 our $branchprefix = 'dgit';
34 # policy hook exit status bits
35 # see dgit-repos-server head comment for documentation
36 # 1 is reserved in case something fails with `exit 1'
37 sub NOFFCHECK () { return 0x2; }
38 sub FRESHREPO () { return 0x4; }
47 sub server_branch ($) { return "$branchprefix/$_[0]"; }
48 sub server_ref ($) { return "refs/".server_branch($_[0]); }
53 return 0 if $!==&ENOENT;
57 sub git_for_each_ref ($$) {
58 my ($pattern,$func) = @_;
59 # calls $func->($objid,$objtype,$fullrefname,$reftail);
60 # $reftail is RHS of ref after refs/\w+/
61 # breaks if $pattern matches any ref `refs/blah' where blah has no `/'
62 open GFER, "-|", qw(git for-each-ref), $pattern or die $!;
64 m#^(\w+)\s+(\w+)\s+(refs/\w+/(\S+))\s# or die "$_ ?";
67 $!=0; $?=0; close GFER or die "$pattern $? $!";
70 sub git_for_each_tag_referring ($$) {
71 my ($objreferring, $func) = @_;
72 # calls $func->($objid,$fullrefname,$tagname);
73 git_for_each_ref('refs/tags', sub {
74 my ($objid,$objtype,$fullrefname,$tagname) = @_;
75 next unless $objtype eq 'tag';
76 next if defined $objreferring and $objid ne $objreferring;
77 $func->($objid,$fullrefname,$tagname);
86 open DEBUG, ">/dev/null" or die $!;
90 open DEBUG, ">&STDERR" or die $!;
95 sub enabledebuglevel ($) {
96 my ($newlevel) = @_; # may be undef (eg from env var)
100 return unless $newlevel;
101 $debuglevel = $newlevel;
106 print DEBUG $debugprefix, @_ or die $! if $debuglevel>0;
114 if (!length || m{[^-=_./0-9a-z]}i) {
121 return join ' ', @out;
126 my $intro = shift @_;
127 print $fh $intro," " or die $!;
128 print $fh shellquote @_ or die $!;
129 print $fh "\n" or die $!;
133 my $extraprefix = shift @_;
134 printcmd(\*DEBUG,$debugprefix.$extraprefix,@_) if $debuglevel>0;