# -*- perl -*- package Debian::Dgit; use strict; use warnings; use POSIX; use IO::Handle; BEGIN { use Exporter (); our ($VERSION, @ISA, @EXPORT, @EXPORT_OK, %EXPORT_TAGS); $VERSION = 1.00; @ISA = qw(Exporter); @EXPORT = qw(debiantag server_branch server_ref stat_exists git_for_each_ref git_for_each_tag_referring $package_re $component_re $deliberately_re $branchprefix initdebug enabledebug enabledebuglevel printdebug debugcmd $debugprefix *debuglevel *DEBUG shellquote printcmd); %EXPORT_TAGS = ( policyflags => [qw(NOFFCHECK FRESHREPO)] ); @EXPORT_OK = @{ $EXPORT_TAGS{policyflags} }; } 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 $branchprefix = 'dgit'; # policy hook exit status bits # see dgit-repos-server head comment for documentation # 1 is reserved in case something fails with `exit 1' and to spot # dynamic loader, runtime, etc., failures, which report 127 or 255 sub NOFFCHECK () { return 0x2; } sub FRESHREPO () { return 0x4; } sub debiantag ($) { my ($v) = @_; $v =~ y/~:/_%/; return "debian/$v"; } sub server_branch ($) { return "$branchprefix/$_[0]"; } sub server_ref ($) { return "refs/".server_branch($_[0]); } sub stat_exists ($) { my ($f) = @_; return 1 if stat $f; return 0 if $!==&ENOENT; die "stat $f: $!"; } sub git_for_each_ref ($$) { my ($pattern,$func) = @_; # calls $func->($objid,$objtype,$fullrefname,$reftail); # $reftail is RHS of ref after refs/\w+/ # breaks if $pattern matches any ref `refs/blah' where blah has no `/' open GFER, "-|", qw(git for-each-ref), $pattern or die $!; while () { m#^(\w+)\s+(\w+)\s+(refs/\w+/(\S+))\s# or die "$_ ?"; $func->($1,$2,$3,$4); } $!=0; $?=0; close GFER or die "$pattern $? $!"; } sub git_for_each_tag_referring ($$) { my ($objreferring, $func) = @_; # calls $func->($objid,$fullrefname,$tagname); git_for_each_ref('refs/tags', sub { my ($objid,$objtype,$fullrefname,$tagname) = @_; next unless $objtype eq 'tag'; next if defined $objreferring and $objid ne $objreferring; $func->($objid,$fullrefname,$tagname); }); } our $debugprefix; our $debuglevel = 0; sub initdebug ($) { ($debugprefix) = @_; open DEBUG, ">/dev/null" or die $!; } sub enabledebug () { open DEBUG, ">&STDERR" or die $!; DEBUG->autoflush(1); $debuglevel ||= 1; } sub enabledebuglevel ($) { my ($newlevel) = @_; # may be undef (eg from env var) die if $debuglevel; $newlevel //= 0; $newlevel += 0; return unless $newlevel; $debuglevel = $newlevel; enabledebug(); } sub printdebug { print DEBUG $debugprefix, @_ or die $! if $debuglevel>0; } sub shellquote { my @out; local $_; foreach my $a (@_) { $_ = $a; if (!length || m{[^-=_./0-9a-z]}i) { s{['\\]}{'\\$&'}g; push @out, "'$_'"; } else { push @out, $_; } } return join ' ', @out; } sub printcmd { my $fh = shift @_; my $intro = shift @_; print $fh $intro," " or die $!; print $fh shellquote @_ or die $!; print $fh "\n" or die $!; } sub debugcmd { my $extraprefix = shift @_; printcmd(\*DEBUG,$debugprefix.$extraprefix,@_) if $debuglevel>0; } 1;