summaryrefslogtreecommitdiff
path: root/Debian
diff options
context:
space:
mode:
Diffstat (limited to 'Debian')
-rw-r--r--Debian/Dgit.pm66
1 files changed, 65 insertions, 1 deletions
diff --git a/Debian/Dgit.pm b/Debian/Dgit.pm
index b21a431..00b4aa5 100644
--- a/Debian/Dgit.pm
+++ b/Debian/Dgit.pm
@@ -7,6 +7,7 @@ use warnings;
use POSIX;
use IO::Handle;
+use Config;
BEGIN {
use Exporter ();
@@ -15,7 +16,9 @@ BEGIN {
$VERSION = 1.00;
@ISA = qw(Exporter);
@EXPORT = qw(debiantag server_branch server_ref
- stat_exists git_for_each_ref
+ stat_exists fail waitstatusmsg failedcmd
+ cmdoutput cmdoutput_errok
+ git_for_each_ref
git_for_each_tag_referring
$package_re $component_re $deliberately_re
$branchprefix
@@ -23,6 +26,7 @@ BEGIN {
printdebug debugcmd
$debugprefix *debuglevel *DEBUG
shellquote printcmd);
+ # implicitly uses $main::us
%EXPORT_TAGS = ( policyflags => [qw(NOFFCHECK FRESHREPO)] );
@EXPORT_OK = @{ $EXPORT_TAGS{policyflags} };
}
@@ -113,6 +117,66 @@ sub stat_exists ($) {
die "stat $f: $!";
}
+sub _us () {
+ $::us // ($0 =~ m#[^/]*$#, $&);
+}
+
+sub fail {
+ my $s = "@_\n";
+ my $prefix = _us().": ";
+ $s =~ s/^/$prefix/gm;
+ die $s;
+}
+
+our @signames = split / /, $Config{sig_name};
+
+sub waitstatusmsg () {
+ if (!$?) {
+ return "terminated, reporting successful completion";
+ } elsif (!($? & 255)) {
+ return "failed with error exit status ".WEXITSTATUS($?);
+ } elsif (WIFSIGNALED($?)) {
+ my $signum=WTERMSIG($?);
+ return "died due to fatal signal ".
+ ($signames[$signum] // "number $signum").
+ ($? & 128 ? " (core dumped)" : ""); # POSIX(3pm) has no WCOREDUMP
+ } else {
+ return "failed with unknown wait status ".$?;
+ }
+}
+
+sub failedcmd {
+ { local ($!); printcmd \*STDERR, _us().": failed command:", @_ or die $!; };
+ if ($!) {
+ fail "failed to fork/exec: $!";
+ } elsif ($?) {
+ fail "subprocess ".waitstatusmsg();
+ } else {
+ fail "subprocess produced invalid output";
+ }
+}
+
+sub cmdoutput_errok {
+ die Dumper(\@_)." ?" if grep { !defined } @_;
+ debugcmd "|",@_;
+ open P, "-|", @_ or die $!;
+ my $d;
+ $!=0; $?=0;
+ { local $/ = undef; $d = <P>; }
+ die $! if P->error;
+ if (!close P) { printdebug "=>!$?\n"; return undef; }
+ chomp $d;
+ $d =~ m/^.*/;
+ printdebug "=> \`$&'",(length $' ? '...' : ''),"\n" if $debuglevel>0; #';
+ return $d;
+}
+
+sub cmdoutput {
+ my $d = cmdoutput_errok @_;
+ defined $d or failedcmd @_;
+ return $d;
+}
+
sub git_for_each_ref ($$) {
my ($pattern,$func) = @_;
# calls $func->($objid,$objtype,$fullrefname,$reftail);