#!/usr/bin/perl -w
-# Known limitations:
-# - does not propagate permissions
-# - error handling has not been extensively tested
-#
-
use strict;
use Getopt::Std;
use File::Temp qw(tempdir);
use Data::Dumper;
use File::Basename qw(basename dirname);
-unless ($ENV{GIT_DIR} && -r $ENV{GIT_DIR}){
- die "GIT_DIR is not defined or is unreadable";
-}
-
-our ($opt_h, $opt_P, $opt_p, $opt_v, $opt_c, $opt_f, $opt_a, $opt_m );
+our ($opt_h, $opt_P, $opt_p, $opt_v, $opt_c, $opt_f, $opt_a, $opt_m, $opt_d, $opt_u, $opt_w);
-getopts('hPpvcfam:');
+getopts('uhPpvcfam:d:w:');
$opt_h && usage();
die "Need at least one commit identifier!" unless @ARGV;
-# setup a tempdir
-our ($tmpdir, $tmpdirname) = tempdir('git-cvsapplycommit-XXXXXX',
- TMPDIR => 1,
- CLEANUP => 1);
+if ($opt_w) {
+ unless ($ENV{GIT_DIR}) {
+ # Remember where our GIT_DIR is before changing to CVS checkout
+ my $gd =`git-rev-parse --git-dir`;
+ chomp($gd);
+ if ($gd eq '.git') {
+ my $wd = `pwd`;
+ chomp($wd);
+ $gd = $wd."/.git" ;
+ }
+ $ENV{GIT_DIR} = $gd;
+ }
+
+ if (! -d $opt_w."/CVS" ) {
+ die "$opt_w is not a CVS checkout";
+ }
+ chdir $opt_w or die "Cannot change to CVS checkout at $opt_w";
+}
+unless ($ENV{GIT_DIR} && -r $ENV{GIT_DIR}){
+ die "GIT_DIR is not defined or is unreadable";
+}
+
+
+my @cvs;
+if ($opt_d) {
+ @cvs = ('cvs', '-d', $opt_d);
+} else {
+ @cvs = ('cvs');
+}
# resolve target commit
my $commit;
}
}
+my $noparent = "0000000000000000000000000000000000000000";
if ($parent) {
my $found;
# double check that it's a valid parent
} else { # we don't have a parent from the cmdline...
if (@parents == 1) { # it's safe to get it from the commit
$parent = $parents[0];
- } else { # or perhaps not!
- die "This commit has more than one parent -- please name the parent you want to use explicitly";
+ } elsif (@parents == 0) { # there is no parent
+ $parent = $noparent;
+ } else { # cannot choose automatically from multiple parents
+ die "This commit has more than one parent -- please name the parent you want to use explicitly";
}
}
}
close MSG;
-`git-diff-tree --binary -p $parent $commit >.cvsexportcommit.diff`;# || die "Cannot diff";
+if ($parent eq $noparent) {
+ `git-diff-tree --binary -p --root $commit >.cvsexportcommit.diff`;# || die "Cannot diff";
+} else {
+ `git-diff-tree --binary -p $parent $commit >.cvsexportcommit.diff`;# || die "Cannot diff";
+}
## apply non-binary changes
-my $fuzz = $opt_p ? 0 : 2;
+
+# In pedantic mode require all lines of context to match. In normal
+# mode, be compatible with diff/patch: assume 3 lines of context and
+# require at least one line match, i.e. ignore at most 2 lines of
+# context, like diff/patch do by default.
+my $context = $opt_p ? '' : '-C1';
print "Checking if patch will apply\n";
my @stat;
-open APPLY, "GIT_DIR= git-apply -C$fuzz --binary --summary --numstat<.cvsexportcommit.diff|" || die "cannot patch";
+open APPLY, "GIT_DIR= git-apply $context --summary --numstat<.cvsexportcommit.diff|" || die "cannot patch";
@stat=<APPLY>;
close APPLY || die "Cannot patch";
my (@bfiles,@files,@afiles,@dfiles);
}
}
+# ... check dirs,
foreach my $d (@dirs) {
if (-e $d) {
$dirty = 1;
warn "$d exists and is not a directory!\n";
}
}
-foreach my $f (@afiles) {
- # This should return only one value
- if ($f =~ m,(.*)/[^/]*$,) {
- my $p = $1;
- next if (grep { $_ eq $p } @dirs);
+
+# ... query status of all files that we have a directory for and parse output of 'cvs status' to %cvsstat.
+my @canstatusfiles;
+foreach my $f (@files) {
+ my $path = dirname $f;
+ next if (grep { $_ eq $path } @dirs);
+ push @canstatusfiles, $f;
+}
+
+my %cvsstat;
+if (@canstatusfiles) {
+ if ($opt_u) {
+ my @updated = safe_pipe_capture(@cvs, 'update', @canstatusfiles);
+ print @updated;
}
- my @status = grep(m/^File/, safe_pipe_capture('cvs', '-q', 'status' ,$f));
- if (@status > 1) { warn 'Strange! cvs status returned more than one line?'};
- if (-d dirname $f and $status[0] !~ m/Status: Unknown$/
- and $status[0] !~ m/^File: no file /) {
- $dirty = 1;
- warn "File $f is already known in your CVS checkout -- perhaps it has been added by another user. Or this may indicate that it exists on a different branch. If this is the case, use -f to force the merge.\n";
- warn "Status was: $status[0]\n";
+ my @cvsoutput;
+ @cvsoutput= safe_pipe_capture(@cvs, 'status', @canstatusfiles);
+ my $matchcount = 0;
+ foreach my $l (@cvsoutput) {
+ chomp $l;
+ if ( $l =~ /^File:/ and $l =~ /Status: (.*)$/ ) {
+ $cvsstat{$canstatusfiles[$matchcount]} = $1;
+ $matchcount++;
+ }
}
}
+# ... validate new files,
+foreach my $f (@afiles) {
+ if (defined ($cvsstat{$f}) and $cvsstat{$f} ne "Unknown") {
+ $dirty = 1;
+ warn "File $f is already known in your CVS checkout -- perhaps it has been added by another user. Or this may indicate that it exists on a different branch. If this is the case, use -f to force the merge.\n";
+ warn "Status was: $cvsstat{$f}\n";
+ }
+}
+# ... validate known files.
foreach my $f (@files) {
next if grep { $_ eq $f } @afiles;
# TODO:we need to handle removed in cvs
- my @status = grep(m/^File/, safe_pipe_capture('cvs', '-q', 'status' ,$f));
- if (@status > 1) { warn 'Strange! cvs status returned more than one line?'};
- unless ($status[0] =~ m/Status: Up-to-date$/) {
+ unless (defined ($cvsstat{$f}) and $cvsstat{$f} eq "Up-to-date") {
$dirty = 1;
- warn "File $f not up to date in your CVS checkout!\n";
+ warn "File $f not up to date but has status '$cvsstat{$f}' in your CVS checkout!\n";
}
}
if ($dirty) {
}
print "Applying\n";
-`GIT_DIR= git-apply -C$fuzz --binary --summary --numstat --apply <.cvsexportcommit.diff` || die "cannot patch";
+`GIT_DIR= git-apply $context --summary --numstat --apply <.cvsexportcommit.diff` || die "cannot patch";
print "Patch applied successfully. Adding new files and directories to CVS\n";
my $dirtypatch = 0;
+
+#
+# We have to add the directories in order otherwise we will have
+# problems when we try and add the sub-directory of a directory we
+# have not added yet.
+#
+# Luckily this is easy to deal with by sorting the directories and
+# dealing with the shortest ones first.
+#
+@dirs = sort { length $a <=> length $b} @dirs;
+
foreach my $d (@dirs) {
- if (system('cvs','add',$d)) {
+ if (system(@cvs,'add',$d)) {
$dirtypatch = 1;
warn "Failed to cvs add directory $d -- you may need to do it manually";
}
foreach my $f (@afiles) {
if (grep { $_ eq $f } @bfiles) {
- system('cvs', 'add','-kb',$f);
+ system(@cvs, 'add','-kb',$f);
} else {
- system('cvs', 'add', $f);
+ system(@cvs, 'add', $f);
}
if ($?) {
$dirtypatch = 1;
}
foreach my $f (@dfiles) {
- system('cvs', 'rm', '-f', $f);
+ system(@cvs, 'rm', '-f', $f);
if ($?) {
$dirtypatch = 1;
warn "Failed to cvs rm -f $f -- you may need to do it manually";
print "Commit to CVS\n";
print "Patch title (first comment line): $title\n";
my @commitfiles = map { unless (m/\s/) { '\''.$_.'\''; } else { $_; }; } (@files);
-my $cmd = "cvs commit -F .msg @commitfiles";
+my $cmd = join(' ', @cvs)." commit -F .msg @commitfiles";
if ($dirtypatch) {
print "NOTE: One or more hunks failed to apply cleanly.\n";
print "You'll need to apply the patch in .cvsexportcommit.diff manually\n";
print "using a patch program. After applying the patch and resolving the\n";
print "problems you may commit using:";
+ print "\n cd \"$opt_w\"" if $opt_w;
print "\n $cmd\n\n";
exit(1);
}
if ($opt_c) {
print "Autocommit\n $cmd\n";
- print safe_pipe_capture('cvs', 'commit', '-F', '.msg', @files);
+ print safe_pipe_capture(@cvs, 'commit', '-F', '.msg', @files);
if ($?) {
die "Exiting: The commit did not succeed";
}
# clean up
unlink(".cvsexportcommit.diff");
+# CVS version 1.11.x and 1.12.x sleeps the wrong way to ensure the timestamp
+# used by CVS and the one set by subsequence file modifications are different.
+# If they are not different CVS will not detect changes.
+sleep(1);
+
sub usage {
print STDERR <<END;
-Usage: GIT_DIR=/path/to/.git ${\basename $0} [-h] [-p] [-v] [-c] [-f] [-m msgprefix] [ parent ] commit
+Usage: GIT_DIR=/path/to/.git ${\basename $0} [-h] [-p] [-v] [-c] [-f] [-u] [-w cvsworkdir] [-m msgprefix] [ parent ] commit
END
exit(1);
}
projects / git.git / blobdiff