DXR is a code search and navigation tool aimed at making sense of large projects. It supports full-text and regex searches as well as structural queries.

Mercurial (920bcf17a9e1)

VCS Links

Line Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292
#!perl -w

# This script copies modified files from a source CVS tree to a destination
# tree. Modified files are detected by comparing their modification dates
# with the CVS Entries file.
# 
# Modified files are copied in their entirety to the destination tree
# (no diffing is done). Files are only copied of the CVS version of the
# file is the same in both trees. If the destination file is modified
# already, it is backed up and replaced.
# 
# To use this on your tree/platform, do the following:
# 
# 1. Fix the !perl line, if necessary.
# 2. Fix $dirsep to be the directory separator on your platform.
# 3. Uncomment the appropriate $dst_linebreaks file specify what linebreaks
#    you want for the copied files. This variable defines the *destination* linebreaks 
#    that you want your changes to be converted to.
#    For example, if you have a linux volume 
#    mounted (via SAMBA perhaps) to your windows box where you've made changes to 
#    source files, you'd want $dst_linebreaks to be set for unix. This ensures that 
#    linebreaks are converted to the appropriate OS linebreak scheme for your *target* tree.
# 4. Set $src_tree and $dest_tree to point to the directories you want
#    to sync up. These don't have to point to the root of the tree,
#    but should be equivalent directories in the two trees.
#    
# First version:
#     Simon Fraser <sfraser@netscape.com>

use File::stat;
use Time::Local;

# change for your platform ('\' == windows, ':' == mac, '/' == unix)
$dirsep = "\\";

# Set this to the native OS of the *destination* tree
# $dst_linebreaks = pack("cc", 13);           # Mac
#$dst_linebreaks = pack("cc", 13, 10);       # DOS
$dst_linebreaks = pack("cc", 10);           # UNIX

#change for your src and dest trees
$src_tree =  "x:\\mozilla\\xpfe\\components";
$dest_tree = "h:\\builds\\mozilla\\xpfe\\components";


#//--------------------------------------------------------------------------------------------------
#// _copyFile. Copy file from src to dest, converting linebreaks if necessary
#//--------------------------------------------------------------------------------------------------
sub _copyFile($;$;$;$)
{
    my($srcdir, $destdir, $file, $backup) = @_;

    my($srcfile) = $srcdir.$dirsep.$file;
    my($dstfile) = $destdir.$dirsep.$file;
    
    if ($backup)
    {
        my($counter) = 0;
        
        while (-f $dstfile."-".$counter)
        {
            $counter ++;
        }
        
        rename($dstfile, $dstfile."-".$counter) or die "Failed to rename file\n";
    }
    
    print "Copying $file over to dest\n";

    my($newdest) = $dstfile."_temp";
    
    open(SRCFILE, "< $srcfile")     or die "Can't open source file $srcfile\n";
    open(NEWDEST, "> $newdest")     or die "Can't open dest file $newdest\n";
    
    while (<SRCFILE>)
    {
        chomp($_);
        print NEWDEST $_.$dst_linebreaks;
    }
    
    close(SRCFILE);
    close(NEWDEST);
    
    if (!$backup) {
        unlink($dstfile)  or die "Failed to remove $dstfile\n";
    }
    rename($newdest, $dstfile)      or die "Failed to rename $newdest\n";
}


#//--------------------------------------------------------------------------------------------------
#// _readCVSInfo. Suck in the CVS info from the Entries file
#//--------------------------------------------------------------------------------------------------

sub _readCVSInfo($)
{
    my($cvsDir) = @_;

    my($entries_file_name) = $cvsDir.$dirsep."CVS".$dirsep."Entries";
    
    # print "Reading $entries_file_name\n";
    open(ENTRIES, $entries_file_name) || die "Could not open file $entries_file_name";

    my(%cvs_entries);
    
    # Read in the path if available    
    while (defined ($line = <ENTRIES>))
    {
        chomp($line);
        
        #parse out the line. Format is:
        #   files:    /filename/version/date/options/tag
        #   dirs:     D/dirname////
        #   dir?      D
        # because we might be reading an entries file from another platform, with
        # different linebreaks, be anal about cleaning up $line.
                
        if ($line =~ /^?\/(.+)\/(.+)\/(.+)\/(.*)\/(.*)?$/)
        {
            my($filename) = $1;
            my($version) = $2;
            my($date) = $3;
            my($options) = $4;
            my($tag) = $5;
            
            my(%cvs_file) = (
                "version"   => $version,
                "date"      => $date,
                "options"   => $options,
                "tag"       => $tag
            );
                        
            # print $filename." ".$version." ".$date." ".$options." ".$tag."\n";
            $cvs_entries{$filename} = \%cvs_file;
        }
    }
   
    close ENTRIES;

    return %cvs_entries;
}


#//--------------------------------------------------------------------------------------------------
#// _fileIsModified. compare mod date with CVS entries to see if a file is modified
#//--------------------------------------------------------------------------------------------------
sub _fileIsModified($;$;$)
{
    my($entries, $dir, $file) = @_;

    my($abs_file) = $dir.$dirsep.$file;

    if (exists($entries->{$file}))
    {
        my($date) = $entries->{$file}->{"date"};
        
        # stat the file to get its date
        my($file_data) = stat($abs_file) || die "Could not stat $file\n";
        my($mod_string) = scalar(gmtime($file_data->mtime));

       return ($mod_string ne $date);
    }
    else
    {
        return 0;    
    }
}


#//--------------------------------------------------------------------------------------------------
#// _processFile. args: entries hash, dir, filename
#//--------------------------------------------------------------------------------------------------

sub _processFile($;$;$;$;$)
{
    my($src_entries, $dest_entries, $srcdir, $destdir, $file) = @_;

    my($abs_file) = $srcdir.$dirsep.$file;
            
    if (exists($src_entries->{$file}))
    {
        my($file_entry) = $src_entries->{$file};
        my($version) = $file_entry->{"version"};
        
        if (_fileIsModified($src_entries, $srcdir, $file))
        {
            my($rel_file) = $abs_file;
            $rel_file =~ s/^$src_tree//;
            
            # print "ĽĘFile $rel_file is modified\n";
            
            # check CVS version in dest
            my($dest_entry) = $dest_entries->{$file};
            if ($dest_entry)
            {
                my($dest_version) = $dest_entry->{"version"};
                my($versions_match) = ($version == $dest_version);
                my($dest_modified) = _fileIsModified($dest_entries, $destdir, $file);
                                
                if ($versions_match)
                {
                    # ok, we can copy the file over now, backing up dest if it is modified
                    _copyFile($srcdir, $destdir, $file, $dest_modified);
                }
                else
                {
                    print "File $rel_file is version $version in the src tree, but $dest_version in dest. This file will not be copied.\n";
                }
            }
            else
            {
                print "No CVS entry found in destination tree for $rel_file\n";
            }
        }
    }
    else
    {
        print "No entry for file $file\n";
    }
}


#//--------------------------------------------------------------------------------------------------
#// _traverseDir. Traverse one dir, recurse for each found dir.
#//--------------------------------------------------------------------------------------------------

sub _traverseDir($;$)
{
    my($srcdir, $destdir) = @_;

    opendir(DIR, $srcdir) or die "Cannot open dir $srcdir\n";
    my @files = readdir(DIR);
    closedir DIR;
    
    # suck in the CVS info for this dir, if there is a CVS dir
    unless (-e $srcdir.$dirsep."CVS".$dirsep."Entries" && -e $destdir.$dirsep."CVS".$dirsep."Entries") {
        print "$srcdir is not a CVS directory in both source and dest\n";
        return;
    }
    
    print " Doing $srcdir\n";
    
    my(%src_entries)  = _readCVSInfo($srcdir);
    my(%dest_entries) = _readCVSInfo($destdir);

    my $file;    
    foreach $file (@files)
    {        
        my $filepath = $srcdir.$dirsep.$file;
                
        if (-d $filepath)
        {
            if ($file ne "CVS")     # ignore 'CVS' dirs
            {
                # print "Going into $filepath\n";            
                _traverseDir($filepath, $destdir.$dirsep.$file);
            }
        }
        else
        {
            # process this file
            _processFile(\%src_entries, \%dest_entries, $srcdir, $destdir, $file);
        }
    }
}

#//--------------------------------------------------------------------------------------------------
#// MigrateChanges
#//--------------------------------------------------------------------------------------------------
sub MigrateChanges($;$)
{
    my($srcdir, $destdir) = @_;

    # Check that src and dest exist
    if (! -d $srcdir) {
        die "Source directory $srcdir does not exist\n";
    }

    if (! -d $destdir) {
        die "Dest directory $destdir does not exist\n";
    }

    print "---------------------------------------------------------\n";
    print "Migrating changes from\n  $srcdir\nto\n  $destdir\n";
    print "---------------------------------------------------------\n";
    _traverseDir($srcdir, $destdir);
    print "---------------------------------------------------------\n";
}


MigrateChanges($src_tree, $dest_tree);