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 $deliberately_re
22 initdebug enabledebug enabledebuglevel
24 $debugprefix *debuglevel *DEBUG
26 %EXPORT_TAGS = ( policyflags => [qw(NOFFCHECK FRESHREPO)] );
27 @EXPORT_OK = @{ $EXPORT_TAGS{policyflags} };
32 our $package_re = '[0-9a-z][-+.0-9a-z]*';
33 our $component_re = '[0-9a-zA-Z][-+.0-9a-zA-Z]*';
34 our $deliberately_re = "(?:TEST-)?$package_re";
35 our $branchprefix = 'dgit';
37 # policy hook exit status bits
38 # see dgit-repos-server head comment for documentation
39 # 1 is reserved in case something fails with `exit 1' and to spot
40 # dynamic loader, runtime, etc., failures, which report 127 or 255
41 sub NOFFCHECK () { return 0x2; }
42 sub FRESHREPO () { return 0x4; }
50 sub server_branch ($) { return "$branchprefix/$_[0]"; }
51 sub server_ref ($) { return "refs/".server_branch($_[0]); }
56 return 0 if $!==&ENOENT;
60 sub git_for_each_ref ($$) {
61 my ($pattern,$func) = @_;
62 # calls $func->($objid,$objtype,$fullrefname,$reftail);
63 # $reftail is RHS of ref after refs/\w+/
64 # breaks if $pattern matches any ref `refs/blah' where blah has no `/'
65 open GFER, "-|", qw(git for-each-ref), $pattern or die $!;
67 m#^(\w+)\s+(\w+)\s+(refs/\w+/(\S+))\s# or die "$_ ?";
70 $!=0; $?=0; close GFER or die "$pattern $? $!";
73 sub git_for_each_tag_referring ($$) {
74 my ($objreferring, $func) = @_;
75 # calls $func->($objid,$fullrefname,$tagname);
76 git_for_each_ref('refs/tags', sub {
77 my ($objid,$objtype,$fullrefname,$tagname) = @_;
78 next unless $objtype eq 'tag';
79 next if defined $objreferring and $objid ne $objreferring;
80 $func->($objid,$fullrefname,$tagname);
89 open DEBUG, ">/dev/null" or die $!;
93 open DEBUG, ">&STDERR" or die $!;
98 sub enabledebuglevel ($) {
99 my ($newlevel) = @_; # may be undef (eg from env var)
103 return unless $newlevel;
104 $debuglevel = $newlevel;
109 print DEBUG $debugprefix, @_ or die $! if $debuglevel>0;
117 if (!length || m{[^-=_./0-9a-z]}i) {
124 return join ' ', @out;
129 my $intro = shift @_;
130 print $fh $intro," " or die $!;
131 print $fh shellquote @_ or die $!;
132 print $fh "\n" or die $!;
136 my $extraprefix = shift @_;
137 printcmd(\*DEBUG,$debugprefix.$extraprefix,@_) if $debuglevel>0;