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; }
49 open DEBUG, ">/dev/null" or die $!;
53 open DEBUG, ">&STDERR" or die $!;
58 sub enabledebuglevel ($) {
59 my ($newlevel) = @_; # may be undef (eg from env var)
63 return unless $newlevel;
64 $debuglevel = $newlevel;
69 print DEBUG $debugprefix, @_ or die $! if $debuglevel>0;
77 if (!length || m{[^-=_./0-9a-z]}i) {
84 return join ' ', @out;
90 print $fh $intro," " or die $!;
91 print $fh shellquote @_ or die $!;
92 print $fh "\n" or die $!;
96 my $extraprefix = shift @_;
97 printcmd(\*DEBUG,$debugprefix.$extraprefix,@_) if $debuglevel>0;
106 sub server_branch ($) { return "$branchprefix/$_[0]"; }
107 sub server_ref ($) { return "refs/".server_branch($_[0]); }
109 sub stat_exists ($) {
112 return 0 if $!==&ENOENT;
116 sub git_for_each_ref ($$) {
117 my ($pattern,$func) = @_;
118 # calls $func->($objid,$objtype,$fullrefname,$reftail);
119 # $reftail is RHS of ref after refs/\w+/
120 # breaks if $pattern matches any ref `refs/blah' where blah has no `/'
121 my @cmd = (qw(git for-each-ref), $pattern);
122 open GFER, "-|", @cmd or die $!;
126 printdebug "|> ", $_, "\n";
127 m#^(\w+)\s+(\w+)\s+(refs/\w+/(\S+))$# or die "$_ ?";
128 $func->($1,$2,$3,$4);
130 $!=0; $?=0; close GFER or die "$pattern $? $!";
133 sub git_for_each_tag_referring ($$) {
134 my ($objreferring, $func) = @_;
135 # calls $func->($objid,$fullrefname,$tagname);
136 printdebug "git_for_each_tag_referring ",
137 ($objreferring // 'UNDEF'),"\n";
138 git_for_each_ref('refs/tags', sub {
139 my ($objid,$objtype,$fullrefname,$tagname) = @_;
140 return unless $objtype eq 'tag';
141 return if defined $objreferring and $objid ne $objreferring;
142 $func->($objid,$fullrefname,$tagname);