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 git_for_each_tag_referring
20 $package_re $component_re $branchprefix
21 initdebug enabledebug enabledebuglevel
23 $debugprefix *debuglevel *DEBUG
25 %EXPORT_TAGS = ( policyflags => [qw(NOFFCHECK FRESHREPO)] );
26 @EXPORT_OK = @{ $EXPORT_TAGS{policyflags} };
31 our $package_re = '[0-9a-z][-+.0-9a-z]*';
32 our $component_re = '[0-9a-zA-Z][-+.0-9a-zA-Z]*';
33 our $branchprefix = 'dgit';
35 # policy hook exit status bits
36 # see dgit-repos-server head comment for documentation
37 # 1 is reserved in case something fails with `exit 1'
38 sub NOFFCHECK () { return 0x2; }
39 sub FRESHREPO () { return 0x4; }
48 sub server_branch ($) { return "$branchprefix/$_[0]"; }
49 sub server_ref ($) { return "refs/".server_branch($_[0]); }
54 return 0 if $!==&ENOENT;
58 sub git_for_each_ref ($$) {
59 my ($pattern,$func) = @_;
60 # calls $func->($objid,$objtype,$fullrefname,$reftail);
61 # $reftail is RHS of ref after refs/\w+/
62 # breaks if $pattern matches any ref `refs/blah' where blah has no `/'
63 open GFER, "-|", qw(git for-each-ref), $pattern or die $!;
65 m#^(\w+)\s+(\w+)\s+(refs/\w+/(\S+))\s# or die "$_ ?";
68 $!=0; $?=0; close GFER or die "$pattern $? $!";
71 sub git_for_each_tag_referring ($$) {
72 my ($objreferring, $func) = @_;
73 # calls $func->($objid,$fullrefname,$tagname);
74 git_for_each_ref('refs/tags', sub {
75 my ($objid,$objtype,$fullrefname,$tagname) = @_;
76 next unless $objtype eq 'tag';
77 next if defined $objreferring and $objid ne $objreferring;
78 $func->($objid,$fullrefname,$tagname);
87 open DEBUG, ">/dev/null" or die $!;
91 open DEBUG, ">&STDERR" or die $!;
96 sub enabledebuglevel ($) {
97 my ($newlevel) = @_; # may be undef (eg from env var)
101 return unless $newlevel;
102 $debuglevel = $newlevel;
107 print DEBUG $debugprefix, @_ or die $! if $debuglevel>0;
115 if (!length || m{[^-=_./0-9a-z]}i) {
122 return join ' ', @out;
127 my $intro = shift @_;
128 print $fh $intro," " or die $!;
129 print $fh shellquote @_ or die $!;
130 print $fh "\n" or die $!;
134 my $extraprefix = shift @_;
135 printcmd(\*DEBUG,$debugprefix.$extraprefix,@_) if $debuglevel>0;