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New CVS 1.12.9 format changes break some PCVS parsing


From: Adam Elliott
Subject: New CVS 1.12.9 format changes break some PCVS parsing
Date: Wed, 04 Aug 2004 20:04:42 -0400
User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7) Gecko/20040616

--text follows this line--
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In GNU Emacs 21.3.1 (i386-mingw-nt5.1.2600)
 of 2004-03-10 on NYAUMO
configured using `configure --with-gcc (3.2)'
Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: en_CA
  locale-coding-system: iso-latin-1
  default-enable-multibyte-characters: t

Please describe exactly what actions triggered the bug and the precise symptoms of the bug:


CVS was upgraded at my site (to 1.12.9) and the format of some of the messages returned have changed, breaking PCVS parsing. The symptom is that messages previously interpreted by PCVS as important and displayed in special formats (e.g. changing file state, putting version number beside, etc.) now fail the various regexps since the format change. Thus they are displayed as non-specific informative messages and the special behaviour is not being triggered.

All required changes to fix are probably in pcvs-parse.el.

What I've found so far:

* message returned immediately after a new file is added

Old message: use 'cvs commit' to add this file permanently
New message: use `cvs commit' to add this file permanently
(note orientation of opening quote)

  - easy to fix; change regexp

* message returned when committing files

Old message (commit):
cvs commit: Examining .
Checking in dummy;
/dev/tmep/tmep/dummy,v  <--  dummy
new revision: 1.3; previous revision: 1.2
done

New message (commit):
cvs commit: Examining .
/dev/tmep/tmep/dummy,v  <--  dummy
new revision: 1.3; previous revision: 1.2

  - introductory line ("Checking in") gone
  - "done" gone
  - comparable for removals ("Removing" and "done" gone)
- note that arrow line DOES NOT contain full path which introductory line did - causes problems when displaying the line after CVS operation completes: not "sorted" properly in tree (sorted to the root always because path information is not present)
    - not sure how to fix; parse and trim left side of arrow line?

* there may be others; change/release log for CVS is not specific as to which messages have changed although I'm sure source diffs would be useful here

Versions:

Emacs 21.3.1 for NT on WinXP
CVS 1.12.9 compiled from source under Cygwin (on WinXP)
- problem exhibited with local repository as well as with remote repository via SSH

Problem is platform-independent as best I can tell as it results from a deliberate change by the CVS developers.

Adam





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