upstreamversion
stripepoch source_file_leafname is_orig_file_of_p_v
server_branch server_ref
- stat_exists link_ltarget
+ stat_exists link_ltarget rename_link_xf
hashfile
fail failmsg ensuredir must_getcwd executable_on_path
waitstatusmsg failedcmd_waitstatus
failedcmd_report_cmd failedcmd
runcmd shell_cmd cmdoutput cmdoutput_errok
- git_rev_parse git_cat_file
+ git_rev_parse changedir_git_toplevel git_cat_file
git_get_ref git_get_symref git_for_each_ref
git_for_each_tag_referring is_fast_fwd
git_check_unmodified
our $versiontag_re = qr{[-+.\%_0-9a-zA-Z/]+};
our $branchprefix = 'dgit';
our $series_filename_re = qr{(?:^|\.)series(?!\n)$}s;
-our $extra_orig_namepart_re = qr{[-0-9a-z]+};
+our $extra_orig_namepart_re = qr{[-0-9a-zA-Z]+};
our $orig_f_comp_re = qr{orig(?:-$extra_orig_namepart_re)?};
our $orig_f_sig_re = '\\.(?:asc|gpg|pgp)';
our $orig_f_tail_re = "$orig_f_comp_re\\.tar(?:\\.\\w+)?(?:$orig_f_sig_re)?";
sub initdebug ($) {
($debugprefix) = @_;
- open DEBUG, ">/dev/null" or confess $!;
+ open DEBUG, ">/dev/null" or confess "$!";
}
sub enabledebug () {
- open DEBUG, ">&STDERR" or confess $!;
+ open DEBUG, ">&STDERR" or confess "$!";
DEBUG->autoflush(1);
$debuglevel ||= 1;
}
print DEBUG $debugprefix unless $printdebug_noprefix;
pop @_ while @_ and !length $_[-1];
return unless @_;
- print DEBUG @_ or confess $!;
+ print DEBUG @_ or confess "$!";
$printdebug_noprefix = $_[-1] !~ m{\n$};
}
sub printcmd {
my $fh = shift @_;
my $intro = shift @_;
- print $fh $intro," " or confess $!;
- print $fh shellquote @_ or confess $!;
- print $fh "\n" or confess $!;
+ print $fh $intro," " or confess "$!";
+ print $fh shellquote @_ or confess "$!";
+ print $fh "\n" or confess "$!";
}
sub debugcmd {
sub failedcmd_report_cmd {
my $intro = shift @_;
$intro //= __ "failed command";
- { local ($!); printcmd \*STDERR, _us().": $intro:", @_ or confess $!; };
+ { local ($!); printcmd \*STDERR, _us().": $intro:", @_ or confess "$!"; };
}
sub failedcmd_waitstatus {
my $d;
$!=0; $?=0;
{ local $/ = undef; $d = <P>; }
- confess $! if P->error;
+ confess "$!" if P->error;
if (!close P) { printdebug "=>!$?\n"; return undef; }
chomp $d;
if ($debuglevel > 0) {
$r or fail "(sym)link $old $new: $!\n";
}
+sub rename_link_xf ($$$) {
+ # renames/moves or links/copies $src to $dst,
+ # even if $dst is on a different fs
+ # (May use the filename "$dst.tmp".);
+ # On success, returns true.
+ # On failure, returns false and sets
+ # $@ to a reason message
+ # $! to an errno value, or -1 if not known
+ # having possibly printed something about mv to stderr.
+ # Not safe to use without $keeporig if $dst might be a symlink
+ # to $src, as it might delete $src leaving $dst invalid.
+ my ($keeporig,$src,$dst) = @_;
+ if ($keeporig
+ ? link $src, $dst
+ : rename $src, $dst) {
+ return 1;
+ }
+ if ($! != EXDEV) {
+ $@ = "$!";
+ return 0;
+ }
+ if (!stat $src) {
+ $@ = f_ "stat source file: %S", $!;
+ return 0;
+ }
+ my @src_stat = (stat _)[0..1];
+
+ my @dst_stat;
+ if (stat $dst) {
+ @dst_stat = (stat _)[0..1];
+ } elsif ($! == ENOENT) {
+ } else {
+ $@ = f_ "stat destination file: %S", $!;
+ return 0;
+ }
+
+ if ("@src_stat" eq "@dst_stat") {
+ # (Symlinks to) the same file. No need for a copy but
+ # we may need to delete the original.
+ printdebug "rename_link_xf $keeporig $src $dst EXDEV but same\n";
+ } else {
+ $!=0; $?=0;
+ my @cmd = (qw(cp --), $src, "$dst.tmp");
+ debugcmd '+',@cmd;
+ if (system @cmd) {
+ failedcmd_report_cmd undef, @cmd;
+ $@ = failedcmd_waitstatus();
+ $! = -1;
+ return 0;
+ }
+ if (!rename "$dst.tmp", $dst) {
+ $@ = f_ "finally install file after cp: %S", $!;
+ return 0;
+ }
+ }
+ if (!$keeporig) {
+ if (!unlink $src) {
+ $@ = f_ "delete old file after cp: %S", $!;
+ return 0;
+ }
+ }
+ return 1;
+}
+
sub hashfile ($) {
my ($fn) = @_;
my $h = Digest::SHA->new(256);
return cmdoutput qw(git rev-parse), "$_[0]~0";
}
+sub changedir_git_toplevel () {
+ my $toplevel = cmdoutput qw(git rev-parse --show-toplevel);
+ length $toplevel or fail __ <<END;
+not in a git working tree?
+(git rev-parse --show-toplevel produced no output)
+END
+ chdir $toplevel or fail f_ "chdir toplevel %s: %s\n", $toplevel, $!;
+}
+
sub git_cat_file ($;$) {
my ($objname, $etype) = @_;
# => ($type, $data) or ('missing', undef)
if (!$gcf_pid) {
my @cmd = qw(git cat-file --batch);
debugcmd "GCF|", @cmd;
- $gcf_pid = open2 $gcf_o, $gcf_i, @cmd or confess $!;
+ $gcf_pid = open2 $gcf_o, $gcf_i, @cmd or confess "$!";
}
printdebug "GCF>| $objname\n";
- print $gcf_i $objname, "\n" or confess $!;
+ print $gcf_i $objname, "\n" or confess "$!";
my $x = <$gcf_o>;
printdebug "GCF<| ", $x;
if ($x =~ m/ (missing)$/) { return $chk->($1, undef); }
if (defined $gitdir) {
@cmd = ('sh','-ec','cd "$1"; shift; exec "$@"','x', $gitdir, @cmd);
}
- open GFER, "-|", @cmd or confess $!;
+ open GFER, "-|", @cmd or confess "$!";
debugcmd "|", @cmd;
while (<GFER>) {
chomp or confess "$_ ?";
local $/="\0";
my $r = { };
- open GITS, "-|", @cmd or confess $!;
+ open GITS, "-|", @cmd or confess "$!";
while (<GITS>) {
chomp or confess;
printdebug "=> ", (messagequote $_), "\n";
my $fh = new IO::Handle;
open $fh, '<', $file or fail f_ "open %s (%s): %s", $file, $desc, $!;
my $c = parsecontrolfh($fh,$desc,$allowsigned);
- $fh->error and confess $!;
+ $fh->error and confess "$!";
close $fh;
return $c;
}
my $c = Dpkg::Control::Hash->new(name => 'parsed changelog');
my $p = new IO::Handle;
my @cmd = (qw(dpkg-parsechangelog), @_);
- open $p, '-|', @cmd or confess $!;
+ open $p, '-|', @cmd or confess "$!";
$c->parse($p);
$?=0; $!=0; close $p or failedcmd @cmd;
return $c;
# @$clogcmd is qw(dpkg-parsechangelog ...some...options...)
# calls $fn->($thisstanza, $desc);
debugcmd "|",@$clogcmd;
- open CLOGS, "-|", @$clogcmd or confess $!;
+ open CLOGS, "-|", @$clogcmd or confess "$!";
for (;;) {
my $stanzatext = do { local $/=""; <CLOGS>; };
printdebug "clogp stanza ".Dumper($stanzatext) if $debuglevel>1;
$fn->($thisstanza, $desc);
}
- confess $! if CLOGS->error;
+ confess "$!" if CLOGS->error;
close CLOGS or $?==SIGPIPE or failedcmd @$clogcmd;
}
my @cmd = (qw(git hash-object -w -t commit --stdin));
debugcmd "|",@cmd;
print Dumper($text) if $debuglevel > 1;
- my $child = open2($out, $in, @cmd) or confess $!;
+ my $child = open2($out, $in, @cmd) or confess "$!";
my $h;
eval {
- print $in $text or confess $!;
- close $in or confess $!;
+ print $in $text or confess "$!";
+ close $in or confess "$!";
$h = <$out>;
$h =~ m/^\w+$/ or confess;
$h = $&;
my $parent = $ref; $parent =~ s{/[^/]+$}{};
ensuredir "$maindir_gitcommon/logs/$parent";
my $makelogfh = new IO::File "$maindir_gitcommon/logs/$ref", '>>'
- or confess $!;
+ or confess "$!";
my $oldcache = git_get_ref $ref;
# you must have called record_maindir
my @cmd = (qw(git log -g), '--pretty=format:%H %gs', $ref);
debugcmd "|(probably)",@cmd;
- my $child = open GC, "-|"; defined $child or confess $!;
+ my $child = open GC, "-|"; defined $child or confess "$!";
if (!$child) {
- chdir $maindir or confess $!;
+ chdir $maindir or confess "$!";
if (!stat "$maindir_gitcommon/logs/$ref") {
- $! == ENOENT or confess $!;
+ $! == ENOENT or confess "$!";
printdebug ">(no reflog)\n";
finish 0;
}
close GC;
return $1;
}
- confess $! if GC->error;
+ confess "$!" if GC->error;
failedcmd unless close GC;
return undef;
}
# $maindir_gitdir contains our main working "dgit", HEAD, etc.
# $maindir_gitcommon the shared stuff, including .objects
rmtree('.git/objects');
- symlink "$maindir_gitcommon/objects",'.git/objects' or confess $!;
+ symlink "$maindir_gitcommon/objects",'.git/objects' or confess "$!";
ensuredir '.git/info';
- open GA, "> .git/info/attributes" or confess $!;
- print GA "* $negate_harmful_gitattrs\n" or confess $!;
- close GA or confess $!;
+ open GA, "> .git/info/attributes" or confess "$!";
+ print GA "* $negate_harmful_gitattrs\n" or confess "$!";
+ close GA or confess "$!";
}
1;
~ianmdlvl / dgit.git / blobdiff