* [ANNOUNCEMENT] Updated: rcs-5.9.2
@ 2014-07-03 18:01 Achim Gratz
2014-07-03 18:17 ` Gold star " Christopher Faylor
0 siblings, 1 reply; 5+ messages in thread
From: Achim Gratz @ 2014-07-03 18:01 UTC (permalink / raw)
To: cygwin
This release brings RCS to version 5.9.2 for both architectures and
includes a patch for the RCS work file corruption problem that has been
discussed on the Cygwin mailing list and reported to rcs-bugs:
http://article.gmane.org/gmane.comp.version-control.rcs.bugs/2772
Thanks to Don Hatch for a demonstrator script and Peter Wagemans for an
analysis of the failure mode.
I'm taking over on request from Dr. Volker Zell, the previous
maintainer. Thank you, Volker.
--8<---------------cut here---------------start------------->8---
NEWS for GNU RCS (Revision Control System)
- 5.9.2 | 2013-11-28
- bugfixes
- avoid possibly failing command in backticks
Some versions of Solaris /bin/sh would cause the extract-help
build script to exit failurefully when the grep command in the
backticks failed (in the presence of "set -e"). Sigh.
- handle low-memory situations like RCS 5.7 (mostly)
For reading comma-v files, RCS 5.7 tries mmap(2), in-core
snarfing, and stdio access, falling back to slower methods
on failure of the faster method. RCS 5.8 maintained the order,
but did not fall back; on failure, it gave up immediately.
This change was originally viewed as a feature, but lately it
seemed more like a bug.
Now, RCS 5.7 behavior is for the most part restored. The
exception is when env var ‘RCS_MEM_LIMIT’ is set; in that case,
failure of a fast method does not fall back to the slower one.
- default for env var ‘RCS_MEM_LIMIT’ relaxed
This used to be 256 kilobytes, a reasonable value a long time
ago, but ridiculously low nowadays. Now, it is "unlimited",
which is more in line w/ the GNU philosophy, anyway:
(info "(standards) Semantics")
Since the env var is mostly intended for testing RCS, you can
normally leave it unset. (Probably it will be removed in a
future release.)
- maintenance tools updated
- automake (GNU automake) 1.14
- gnulib-tool (GNU gnulib 2013-11-28 08:46:06) 0.1.21-37f8a
- 5.9.1 | 2013-10-04
- bugfixes
- specify ‘diff --binary’ consistently for non-POSIX systems
On non-POSIX systems, in some cases, ‘rcs frob’ used to omit
‘--binary’ from the command-line to the underlying diff(1).
Now, that is done in all cases.
- portability fixes
- avoid ‘grep -q’
GNU grep understands ‘grep -q’ but some others do not.
(info "(autoconf) Limitations of Usual Tools")
- avoid ‘$<’ in makefile
GNU make understands ‘$<’ but some others do not.
(info "(autoconf) $< in Ordinary Make Rules")
- avoid backslash in backticks
The /bin/sh scripts used in "make" and "make check" now avoid
using a backslash in backticks, which can cause problems for
Solaris 9 /bin/sh (and maybe other /bin/sh implementations).
- ‘PROGRAM --help’ shows home page / "gethelp" info
This is for compliance w/ the GNU coding standards.
(info "(standards) --help")
- maintenance tools updated
- automake (GNU automake) 1.13.4
- gnulib-tool (GNU gnulib 2013-10-03 04:59:38) 0.0.8036-28df8
- 5.9.0 | 2013-05-06
- distribution now .tar.lz and .tar.xz
If you have GNU tar, you can use "tar xf" and it will DTRT.
If not, you can use "lzip -dc TARBALL | tar xf -" to unpack
the .tar.lz, or "xz -dc TARBALL | tar xf -" for the .tar.xz.
- planned retirement
- configure option ‘--enable-compat2’
This option enables reading of files written by RCS 2.x (before
RCS was GNU, even), but the file format became obsolete in 1982.
Support for it WILL BE REMOVED in a near future GNU RCS release.
- common option ‘-V’
This option is obsoleted by ‘--version’ (since 5.8, 2011-08-30).
Support for it WILL BE REMOVED in some future GNU RCS release.
Its use now produces a warning to stderr.
Please note that ‘-VN’ (N ∈ {3,4,5}) is a separate issue.
- bugs fixed
- ‘rcsmerge --help’ mentions ‘-A’, ‘-E’, ‘-e’
These options are accepted and internally passed to diff3(1).
- ‘ident -VN’ and ‘merge -VN’ now signal error
For these commands, the argument to ‘-V’ has no meaning.
Previously, such invocations would display version info,
ignoring the arg. Now they signal a "bad option" error.
- new features
- ident(1) recognizes Subversion "fixed-width keyword syntax"
In addition to the normal keyword pattern, for Subversion 1.2
(and later) compatibility, ident(1) also recognizes patterns
having one of the forms:
$KEYWORD:: TEXT $
;; two colons and space after keyword
;; space before ending $
$KEYWORD:: TEXT#$
;; two colons and space after keyword
;; hash before ending $
- new co(1) option ‘-S’ for "self-same" mode
In this mode, the owner of a lock is unimportant, just that it
exists. Effectively, this prevents you from checking out the
same revision twice.
$ whoami
ttn
$ co -l -f z
RCS/z,v --> z
revision 1.1 (locked)
done
$ co -S -l -f z
RCS/z,v --> z
co: RCS/z,v: Revision 1.1 is already locked by ttn.
- several RCS commands "internalized" into rcs(1)
As part of an ongoing effort to modernize the command-line
interface of GNU RCS, the previously standalone programs:
ci, co, rcs, rcsclean, rcsdiff, rcsmerge, rlog
can now be invoked as "rcs PROGRAM". In this case, we call
PROGRAM a "command", and also provide some aliases. E.g., you
can type "rcs diff" in addition to "rcs rcsdiff" (and "rcsdiff",
of course). We plan to support standalone (w/o "rcs" prefix)
invocation from the shell at least through the 5.x series of
releases -- not indefinitely, but for a good while, yet.
The rcs(1) program itself now supports ‘--commands’ to list all
the commands, ‘--aliases’ to list their aliases, as well as
‘--help COMAMND’ to show the help for COMMAND.
Note that programs ident(1) and merge(1) remain standalone.
Lastly, in the manual, section "Invoking rcs" now describes both
"modern" and "legacy" usages. Also, the internalized commands
invocations mentions both "rcs COMMAND" and "PROGRAM" styles.
- ‘--help’ output includes a one-line description
E.g., "merge --help" says: "Three-way file merge".
- most long options can be recognized if partially specified
With the exception of "rcs --help COMMAND", where "--help" must
be spelled out in full, all long options can now be recognized
even if partially specified. For example, "rcs --al" is
recognized as "rcs --aliases".
- updated portability
Several more Gnulib (http://www.gnu.org/software/gnulib) modules
are now in use.
- new cross-compilation support
The configure script now assigns "pessimistic defaults" when
cross-compiling. See new section "cross-compilation" in README.
- effects of ‘-VN’ (N ∈ {3,4,5}) documented
See (info "(rcs) Misc common options").
- maintenance tools updated
- gnulib-tool (GNU gnulib 2013-05-01 06:14:19) 0.0.7913-5191
--8<---------------cut here---------------end--------------->8---
Regards,
Achim.
--
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* Gold star Re: [ANNOUNCEMENT] Updated: rcs-5.9.2
2014-07-03 18:01 [ANNOUNCEMENT] Updated: rcs-5.9.2 Achim Gratz
@ 2014-07-03 18:17 ` Christopher Faylor
2014-07-04 14:19 ` Andrew Schulman
0 siblings, 1 reply; 5+ messages in thread
From: Christopher Faylor @ 2014-07-03 18:17 UTC (permalink / raw)
To: cygwin
On Thu, Jul 03, 2014 at 07:59:42PM +0200, Achim Gratz wrote:
>This release brings RCS to version 5.9.2 for both architectures and
>includes a patch for the RCS work file corruption problem that has been
>discussed on the Cygwin mailing list and reported to rcs-bugs:
Could we get a gold star for Achim here? He's fixed a long-standing
problem in RCS and taken over maintainership.
Thanks Achim.
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* Re: Gold star Re: [ANNOUNCEMENT] Updated: rcs-5.9.2
2014-07-03 18:17 ` Gold star " Christopher Faylor
@ 2014-07-04 14:19 ` Andrew Schulman
2014-07-06 22:08 ` Keith Christian
0 siblings, 1 reply; 5+ messages in thread
From: Andrew Schulman @ 2014-07-04 14:19 UTC (permalink / raw)
To: cygwin
> On Thu, Jul 03, 2014 at 07:59:42PM +0200, Achim Gratz wrote:
> >This release brings RCS to version 5.9.2 for both architectures and
> >includes a patch for the RCS work file corruption problem that has been
> >discussed on the Cygwin mailing list and reported to rcs-bugs:
>
> Could we get a gold star for Achim here? He's fixed a long-standing
> problem in RCS and taken over maintainership.
>
> Thanks Achim.
Awarded! http://cygwin.com/goldstars/#AG
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Gold star Re: [ANNOUNCEMENT] Updated: rcs-5.9.2
2014-07-04 14:19 ` Andrew Schulman
@ 2014-07-06 22:08 ` Keith Christian
2014-07-07 1:39 ` Will Parsons
0 siblings, 1 reply; 5+ messages in thread
From: Keith Christian @ 2014-07-06 22:08 UTC (permalink / raw)
To: cygwin
I use RCS every work day, it's a small, fast, flexible productivity
tool, sometimes with a timed loop to save rapid editing sessions when
I'm brainstorming.....maybe that edit a few hours ago was worth saving
after all, and with RCS I can get it back.
Thank you for updating it and becoming its new maintainer.
On Fri, Jul 4, 2014 at 8:18 AM, Andrew Schulman <schulman.andrew@epa.gov> wrote:
>> On Thu, Jul 03, 2014 at 07:59:42PM +0200, Achim Gratz wrote:
>> >This release brings RCS to version 5.9.2 for both architectures and
>> >includes a patch for the RCS work file corruption problem that has been
>> >discussed on the Cygwin mailing list and reported to rcs-bugs:
>>
>> Could we get a gold star for Achim here? He's fixed a long-standing
>> problem in RCS and taken over maintainership.
>>
>> Thanks Achim.
>
> Awarded! http://cygwin.com/goldstars/#AG
>
>
> --
> Problem reports: http://cygwin.com/problems.html
> FAQ: http://cygwin.com/faq/
> Documentation: http://cygwin.com/docs.html
> Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
>
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Gold star Re: [ANNOUNCEMENT] Updated: rcs-5.9.2
2014-07-06 22:08 ` Keith Christian
@ 2014-07-07 1:39 ` Will Parsons
0 siblings, 0 replies; 5+ messages in thread
From: Will Parsons @ 2014-07-07 1:39 UTC (permalink / raw)
To: cygwin
Keith Christian wrote:
> I use RCS every work day, it's a small, fast, flexible productivity
> tool, sometimes with a timed loop to save rapid editing sessions when
> I'm brainstorming.....maybe that edit a few hours ago was worth saving
> after all, and with RCS I can get it back.
>
> Thank you for updating it and becoming its new maintainer.
Seconded. Sometimes RCS is looked down upon now-adays as being
superseded by more modern revision control systems, but I, too, find
it invaluable both on Cygwin and other platforms that I work on.
Thanks for the continued maintenance.
> On Fri, Jul 4, 2014 at 8:18 AM, Andrew Schulman <schulman.andrew@epa.gov> wrote:
>>> On Thu, Jul 03, 2014 at 07:59:42PM +0200, Achim Gratz wrote:
>>> >This release brings RCS to version 5.9.2 for both architectures and
>>> >includes a patch for the RCS work file corruption problem that has been
>>> >discussed on the Cygwin mailing list and reported to rcs-bugs:
>>>
>>> Could we get a gold star for Achim here? He's fixed a long-standing
>>> problem in RCS and taken over maintainership.
>>>
>>> Thanks Achim.
>>
>> Awarded! http://cygwin.com/goldstars/#AG
--
Will
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2014-07-03 18:01 [ANNOUNCEMENT] Updated: rcs-5.9.2 Achim Gratz
2014-07-03 18:17 ` Gold star " Christopher Faylor
2014-07-04 14:19 ` Andrew Schulman
2014-07-06 22:08 ` Keith Christian
2014-07-07 1:39 ` Will Parsons
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