Date: Thu, 13 Mar 2003 18:15:32 +0300 (MSK) From: Dmitry Morozovsky <marck@rinet.ru> To: Tony Finch <dot@dotat.at> Cc: hackers@freebsd.org Subject: Re: FreeBSD-specific CVS: tagexpand question Message-ID: <20030313180755.Y46614@woozle.rinet.ru> In-Reply-To: <E18tUEU-0001R8-00@chiark.greenend.org.uk> References: <E18tUEU-0001R8-00@chiark.greenend.org.uk>
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On Thu, 13 Mar 2003, Tony Finch wrote:
TF> >Is there any way to tune FreeBSD-specific CVS (with CVSROOT/options support) to
TF> >provide the following functionality:
TF> >- ident keyword should be standard ($ Id $)
TF> >- it should be expanded as ($ CVSHeader $) to repo-relative path
TF>
TF> Why do you want to do that? It seems like a bad idea to me -- you should
TF> keep the semantics of CVS keywords constant, and you should keep per-
TF> project keywords as distinctive as possible to avoid clashes as source
TF> moves around.
Well, AFAIThink the semantics do not change -- just extends a bit, and
thus allow to be extensively checked for example by FreeBSD-styled CVSROOT
scripts like commit_prep.pl
BTW, I've written a little patch to CVS similar to peter's patches: it adds
idexpmode options to CVSROOT/options -- attached just in case anyone
interested.
Sincerely,
D.Marck [DM5020, DM268-RIPE, DM3-RIPN]
------------------------------------------------------------------------
*** Dmitry Morozovsky --- D.Marck --- Wild Woozle --- marck@rinet.ru ***
------------------------------------------------------------------------
# $Id: FreeBSD/Patches/cvs-idexpmode.patch,v 1.1 2003/03/13 12:53:15 marck Exp $
#
#-DSC-# idexpmode option for CVS
This patch adds new option for cvs. You can specify idexpmode=<MODE>
in CVSROOT/options admin file to select $ Id $ RCS keyword expansion mode.
MODE may be on of the following:
Id last path component; default
Header full path including repository root
CVSHeader path relative to repository root
Index: contrib/cvs/src/main.c
===================================================================
RCS file: /home/ncvs/src/contrib/cvs/src/main.c,v
retrieving revision 1.18.2.4
diff -u -r1.18.2.4 main.c
--- contrib/cvs/src/main.c 19 Dec 2002 21:17:56 -0000 1.18.2.4
+++ contrib/cvs/src/main.c 13 Mar 2003 12:26:14 -0000
@@ -1244,6 +1244,12 @@
rcs_incexc = buf + 10;
RCS_setincexc(rcs_incexc);
}
+ if (!strncmp(buf, "idexpmode=", 10)) {
+ char *rcs_idexpmode;
+
+ rcs_idexpmode = buf + 10;
+ RCS_setidexpmode(rcs_idexpmode);
+ }
/*
* OpenBSD has a "umask=" and "dlimit=" command, we silently
* ignore them here since they are not much use to us. cvsumask
Index: contrib/cvs/src/rcs.c
===================================================================
RCS file: /home/ncvs/src/contrib/cvs/src/rcs.c,v
retrieving revision 1.19.2.5
diff -u -r1.19.2.5 rcs.c
--- contrib/cvs/src/rcs.c 21 Jan 2003 22:26:44 -0000 1.19.2.5
+++ contrib/cvs/src/rcs.c 13 Mar 2003 12:26:14 -0000
@@ -3519,6 +3519,7 @@
KEYWORD_LOCALID
};
enum keyword keyword_local = KEYWORD_ID;
+enum keyword keyword_idexmode = KEYWORD_ID;
/* Convert an RCS date string into a readable string. This is like
the RCS date2str function. */
@@ -3757,11 +3758,15 @@
old_path = NULL;
if (kw == KEYWORD_HEADER ||
(kw == KEYWORD_LOCALID &&
- keyword_local == KEYWORD_HEADER))
+ keyword_local == KEYWORD_HEADER) ||
+ (kw == KEYWORD_ID &&
+ keyword_idexmode == KEYWORD_HEADER))
path = rcs->path;
else if (kw == KEYWORD_CVSHEADER ||
(kw == KEYWORD_LOCALID &&
- keyword_local == KEYWORD_CVSHEADER))
+ keyword_local == KEYWORD_CVSHEADER) ||
+ (kw == KEYWORD_ID &&
+ keyword_idexmode == KEYWORD_CVSHEADER))
path = getfullCVSname(rcs->path, &old_path);
else
path = last_component (rcs->path);
@@ -8627,6 +8632,25 @@
error(1, 0, "Unknown LocalId mode: %s", key);
}
free(copy);
+}
+
+void
+RCS_setidexpmode (arg)
+ const char *arg;
+{
+ char *key;
+
+ key = xstrdup(arg);
+ if (!strcmp(key, keywords[KEYWORD_ID].string))
+ keyword_idexmode = KEYWORD_ID;
+ else if (!strcmp(key, keywords[KEYWORD_HEADER].string))
+ keyword_idexmode = KEYWORD_HEADER;
+ else if (!strcmp(key, keywords[KEYWORD_CVSHEADER].string))
+ keyword_idexmode = KEYWORD_CVSHEADER;
+ else
+ error(1, 0, "Unknown id expand mode: %s", key);
+
+ free(key);
}
void
Index: contrib/cvs/src/rcs.h
===================================================================
RCS file: /home/ncvs/src/contrib/cvs/src/rcs.h,v
retrieving revision 1.7.2.4
diff -u -r1.7.2.4 rcs.h
--- contrib/cvs/src/rcs.h 19 Dec 2002 21:17:56 -0000 1.7.2.4
+++ contrib/cvs/src/rcs.h 13 Mar 2003 12:26:14 -0000
@@ -243,6 +243,7 @@
enum rcs_delta_op, char **, size_t *,
char **, size_t *));
void RCS_setincexc PROTO ((const char *arg));
+void RCS_setidexpmode PROTO ((const char *arg));
void RCS_setlocalid PROTO ((const char *arg));
char *make_file_label PROTO ((char *, char *, RCSNode *));
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