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Re: cvs 1.11.2 rdiff fails with binary files


From: tony
Subject: Re: cvs 1.11.2 rdiff fails with binary files
Date: Thu, 21 Nov 2002 16:43:54 -0500
User-agent: Internet Messaging Program (IMP) 3.1

> Tony,
> 
> Assuming Larry doesn't want to argue with me, could you resubmit this
> 
> patch with a test case and maybe documentation, as per the HACKING
> file 
> in the top level of the source distribution?
> 
> Thanks,
> 
> Derek


***CHANGELOG***

NEWS: Note that rdiff now handles binary files in the same way as the patch 
utility. 

***NEWS***

* The "cvs rdiff" command no longer attempts to diff files marked as binary.  
Instead, it prints a "Binary files foo:1.1 and foo:1.2 differ" message, just 
like the patch utility.


***PATCH***

diff -urN cvs-1.11.1p1-orig/src/patch.c cvs-1.11.1p1-apc/src/patch.c
--- cvs-1.11.1p1-orig/src/patch.c       Tue Apr 24 14:14:53 2001
+++ cvs-1.11.1p1-apc/src/patch.c        Wed Oct 30 15:32:38 2002
@@ -590,6 +592,28 @@
        case 0:                         /* nothing to do */
            break;
        case 1:
+           /* If files differ and are marked as binary, just output message */
+           if (rcsfile->expand != NULL && strcmp(rcsfile->expand, "b") == 0)
+           {
+               cvs_output("Binary files ", 0);
+               cvs_output(finfo->fullname, 0);
+               cvs_output(":", 1);
+               if (vers_tag)
+                   cvs_output(vers_tag, 0);
+               else
+                   cvs_output("missing", 0);
+               cvs_output(" and ", 0);
+               cvs_output(finfo->fullname, 0);
+               cvs_output(":", 1);
+               if (vers_head) 
+                   cvs_output(vers_head, 0);
+               else
+                   cvs_output("removed", 0);
+               cvs_output(" differ",0);
+               cvs_output("\n",1);
+               break;
+           }
+
            /*
             * The two revisions are really different, so read the first two
             * lines of the diff output file, and munge them to include more


***TEST***

                # APC - test rdiff_skip_binary
                # rdiff should warn and skip binary files like patch does
                mkdir testimport
                cd testimport
                echo "not a real binary file" > fakebinary
                ${AWK} 'BEGIN { printf "address@hidden", 2, 10, 137, 13, 10 }' \
                    </dev/null | ${TR} '@' '\000' > realbinary
                echo "just a text file" > textfile
                dotest_sort rdiff-10.0-skip_binary-do_import \
                  "${testcvs} import -I ! -m skip-binary-import 
trdiff_skip_binary TRDIFF T10" \
'

N trdiff_skip_binary/fakebinary
N trdiff_skip_binary/realbinary
N trdiff_skip_binary/textfile
No conflicts created by this import'
                dotest rdiff-10.1-skip_binary-do_checkout \
                  "${testcvs} co trdiff_skip_binary " \
"${PROG}"' [a-z]*: Updating trdiff_skip_binary
U trdiff_skip_binary/fakebinary
U trdiff_skip_binary/realbinary
U trdiff_skip_binary/textfile'
                cd trdiff_skip_binary
                dotest rdiff-10.3-skip_binary-do_makebinary \
                  "${testcvs} admin -kb fakebinary realbinary" \
"RCS file: ${CVSROOT_DIRNAME}/trdiff_skip_binary/fakebinary,v
done
RCS file: ${CVSROOT_DIRNAME}/trdiff_skip_binary/realbinary,v
done"
                dotest rdiff-10.4-skip_binary-do_update \
                  "${testcvs} update" \
"${PROG}"' [a-z]*: Updating \.
U fakebinary
U realbinary'
                cat realbinary realbinary > realbinary.new
                mv realbinary.new realbinary
                echo "more text" >> fakebinary
                echo "more text" >> textfile
                dotest rdiff-10.4-skip_binary-do_commit \
                  "${testcvs} commit -m skip-binary-commit" \
"${PROG}"' [a-z]*: Examining \.
Checking in fakebinary;
'"${CVSROOT_DIRNAME}"'/trdiff_skip_binary/fakebinary,v  <--  fakebinary
new revision: 1\.2; previous revision: 1\.1
done
Checking in realbinary;
'"${CVSROOT_DIRNAME}"'/trdiff_skip_binary/realbinary,v  <--  realbinary
new revision: 1\.2; previous revision: 1\.1
done
Checking in textfile;
'"${CVSROOT_DIRNAME}"'/trdiff_skip_binary/textfile,v  <--  textfile
new revision: 1\.2; previous revision: 1\.1
done'
                dotest rdiff-10.5-reset_ts-do_rdiff \
                  "${testcvs} rdiff -u -r1\.1 trdiff_skip_binary" \
"${PROG}"' [a-z]*: Diffing trdiff_skip_binary
Binary files trdiff_skip_binary/fakebinary:1\.1 and 
trdiff_skip_binary/fakebinary:1\.2 differ
Binary files trdiff_skip_binary/realbinary:1\.1 and 
trdiff_skip_binary/realbinary:1\.2 differ
Index: trdiff_skip_binary/textfile
diff -u trdiff_skip_binary/textfile:1\.1 trdiff_skip_binary/textfile:1\.2
--- trdiff_skip_binary/textfile:1\.1    .*
+++ trdiff_skip_binary/textfile .*
@@ -1 +1,2 @@
 just a text file
+more text'
                cd ../..
                rm -r testimport
                rm -rf ${CVSROOT_DIRNAME}/trdiff_skip_binary





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