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Length: 6541 (0x198d)
Types: TextFile
Names: »rcsclean.c«
└─⟦a05ed705a⟧ Bits:30007078 DKUUG GNU 2/12/89
└─⟦d7c6f1edc⟧ »./rcs.tar.Z«
└─⟦b893ff3cc⟧
└─⟦this⟧ »rcs/src/rcsclean.c«
/*
* RCS rcsclean operation
*/
static char rcsid[]=
"$Header $ Purdue CS";
/*****************************************************************************
* remove unneded working files
*****************************************************************************
*/
/* Copyright (C) 1982, 1988, 1989 Walter Tichy
Distributed under license by the Free Software Foundation, Inc.
This file is part of RCS.
RCS is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 1, or (at your option)
any later version.
RCS is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with RCS; see the file COPYING. If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
Report problems and direct all questions to:
rcs-bugs@cs.purdue.edu
*/
/* $Log: rcsclean.c,v $
* Revision 4.4 89/05/01 15:12:21 narten
* changed copyright header to reflect current distribution rules
*
* Revision 4.3 88/11/08 15:59:54 narten
* removed reference to TARGETDIR
*
* Revision 4.2 87/10/18 10:30:43 narten
* Updating version numbers. Changes relative to 1.1 are actually
* relative to 4.1
*
* Revision 1.2 87/09/24 13:59:13 narten
* Sources now pass through lint (if you ignore printf/sprintf/fprintf
* warnings)
*
* Revision 1.1 84/01/23 14:50:16 kcs
* Initial revision
*
* Revision 4.1 83/12/15 12:26:18 wft
* Initial revision.
*
*/
#include "rcsbase.h"
#define ERRCODE 2 /*error code for exit status */
static char rcsbaseid[] = RCSBASE;
extern int cleanup(); /* cleanup after signals */
extern char * mktempfile(); /*temporary file name generator */
extern int fterror(); /*forward for special fatal error func. */
extern struct hshentry * genrevs(); /*generate delta numbers */
extern int nerror; /*counter for errors */
extern int quietflag; /*suppresses diagnostics */
extern FILE * finptr; /* RCS input file */
extern FILE * fopen();
char *RCSfilename;
char *workfilename;
char * tempfile;
FILE * file1, * file2; /*file descriptors for comparison */
main (argc, argv)
int argc; char **argv;
{
char * cmdusage;
char command[NCPPN+revlength+40];
char * rev; /* revision number from command line */
char numericrev[revlength]; /* holds expanded revision number */
int revnums; /* number of -r options */
struct hshentry * gendeltas[hshsize];/*stores deltas to be generated*/
struct hshentry * target;
int filecounter;
register int c1; /* reading input */
int result; /* result of comparison */
int pairresult; /* reulst of pairfilenames */
catchints();
cmdid = "rcsclean";
cmdusage = "command format:\n rcsclean [-rrev] file";
filecounter=revnums=0;
quietflag=true; /* default no diagnostics */
while (--argc,++argv, argc>=1 && ((*argv)[0] == '-')) {
switch ((*argv)[1]) {
case 'r':
revno: if ((*argv)[2]!='\0') {
if (revnums==0) {
rev= *argv+2; revnums=1;
} else {
fterror("too many revision numbers");
}
} /* do nothing for empty -r */
break;
case 'D': /* debug option */
quietflag = false;
break;
default:
fterror("unknown option: %s\n%s", *argv,cmdusage);
};
} /* end of option processing */
if (argc<1) fterror("No input file\n%s",cmdusage);
/* now handle all filenames */
do {
finptr=NULL;
pairresult=pairfilenames(argc,argv,false,false);
if (pairresult==0) continue; /* error */
if (!(access(workfilename,4)==0)) {
diagnose("Can't open %s",workfilename);
continue;
} elsif (pairresult == -1) {
warn("Can't find RCS file for %s",workfilename);
continue;
}
diagnose("RCS file: %s",RCSfilename);
if (!trysema(RCSfilename,false)) continue; /* give up */
gettree(); /* reads in the delta tree */
if (Head==nil) {
error("no revisions present");
continue;
}
if (revnums==0)
rev=(Dbranch!=nil?Dbranch->num:Head->num); /* default rev1 */
if (!expandsym(rev,numericrev)) continue;
if (!(target=genrevs(numericrev,nil,nil,nil,gendeltas))) continue;
tempfile=mktempfile("/tmp/",TMPFILE1);
diagnose("retrieving revision %s",target->num);
VOID sprintf(command,"%s -q -p%s %s > %s\n",
CO ,target->num,RCSfilename,tempfile);
if (system(command)){
error("co failed");
continue;
}
/* now do comparison */
if ((file1=fopen(tempfile,"r"))==NULL) {
error("Can't open checked out file %s",tempfile);
continue;
}
if ((file2=fopen(workfilename,"r"))==NULL) {
error("Can't open %s",workfilename);
continue;
}
result=1;
while ((c1=getc(file1))==getc(file2)) {
if (c1==EOF) {
/* identical files; can remove working file */
result=0;
diagnose("files identical; %s removed",workfilename);
if (unlink(workfilename)!=0) {
error("Can't unlink %s",workfilename);
}
break;
}
}
fclose(file1); fclose(file2);
if (result==1) diagnose ("files different");
} while (cleanup(),
++argv, --argc >=1);
if (nerror>0) {
exit(ERRCODE);
} else {
exit(result);
}
}
fterror(e, e1, e2)
char * e, * e1, * e2;
/* prints error message and terminates program with ERRCODE */
{ nerror++;
VOID fprintf(stderr,"%s error: ",cmdid);
VOID fprintf(stderr,e, e1, e2);
VOID fprintf(stderr,"\n%s aborted\n",cmdid);
VOID cleanup();
exit(ERRCODE);
}