#!/usr/bin/perl -w
+# Known limitations:
+# - cannot add or remove binary files
+# - does not propagate permissions
+# - tells "ready for commit" even when things could not be completed
+# (eg addition of a binary file)
+
use strict;
use Getopt::Std;
use File::Temp qw(tempdir);
use Data::Dumper;
-use File::Basename qw(basename);
+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_v, $opt_c );
+our ($opt_h, $opt_p, $opt_v, $opt_c, $opt_f, $opt_m );
-getopts('hpvc');
+getopts('hpvcfm:');
$opt_h && usage();
$opt_v && print "Applying to CVS commit $commit from parent $parent\n";
# grab the commit message
-`git-cat-file commit $commit | sed -e '1,/^\$/d' > .msg`;
+open(MSG, ">.msg") or die "Cannot open .msg for writing";
+print MSG $opt_m;
+close MSG;
+
+`git-cat-file commit $commit | sed -e '1,/^\$/d' >> .msg`;
$? && die "Error extracting the commit message";
-my (@afiles, @dfiles, @mfiles);
+my (@afiles, @dfiles, @mfiles, @dirs);
my @files = safe_pipe_capture('git-diff-tree', '-r', $parent, $commit);
-print @files;
+#print @files;
$? && die "Error in git-diff-tree";
foreach my $f (@files) {
chomp $f;
my @fields = split(m!\s+!, $f);
if ($fields[4] eq 'A') {
- push @afiles, $fields[5];
+ my $path = $fields[5];
+ push @afiles, $path;
+ # add any needed parent directories
+ $path = dirname $path;
+ while (!-d $path and ! grep { $_ eq $path } @dirs) {
+ unshift @dirs, $path;
+ $path = dirname $path;
+ }
}
if ($fields[4] eq 'M') {
push @mfiles, $fields[5];
# check that the files are clean and up to date according to cvs
my $dirty;
+foreach my $d (@dirs) {
+ if (-e $d) {
+ $dirty = 1;
+ warn "$d exists and is not a directory!\n";
+ }
+}
foreach my $f (@afiles) {
# This should return only one value
my @status = grep(m/^File/, safe_pipe_capture('cvs', '-q', 'status' ,$f));
if (@status > 1) { warn 'Strange! cvs status returned more than one line?'};
- unless ($status[0] =~ m/Status: Unknown$/) {
+ 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!\n";
+ 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\n";
}
}
foreach my $f (@mfiles, @dfiles) {
}
}
if ($dirty) {
- die "Exiting: your CVS tree is not clean for this merge.";
+ if ($opt_f) { warn "The tree is not clean -- forced merge\n";
+ $dirty = 0;
+ } else {
+ die "Exiting: your CVS tree is not clean for this merge.";
+ }
}
###
###
+print "Creating new directories\n";
+foreach my $d (@dirs) {
+ unless (mkdir $d) {
+ warn "Could not mkdir $d: $!";
+ $dirty = 1;
+ }
+ `cvs add $d`;
+ if ($?) {
+ $dirty = 1;
+ warn "Failed to cvs add directory $d -- you may need to do it manually";
+ }
+}
+
print "'Patching' binary files\n";
my @bfiles = grep(m/^Binary/, safe_pipe_capture('git-diff-tree', '-p', $parent, $commit));
my $blob = `git-ls-tree $tree "$f" | cut -f 1 | cut -d ' ' -f 3`;
chomp $blob;
`git-cat-file blob $blob > $tmpdir/blob`;
- if (system('cmp', '-q', $f, "$tmpdir/blob")) {
+ if (system('cmp', '-s', $f, "$tmpdir/blob")) {
warn "Binary file $f in CVS does not match parent.\n";
$dirty = 1;
next;
}
sub usage {
print STDERR <<END;
-Usage: GIT_DIR=/path/to/.git ${\basename $0} [-h] [-p] [-v] [-c] [ parent ] commit
+Usage: GIT_DIR=/path/to/.git ${\basename $0} [-h] [-p] [-v] [-c] [-f] [-m msgprefix] [ parent ] commit
END
exit(1);
}