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- /*
- * 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 5.3 90/07/15 20:24:41 lfk
- * Most major fixes added between rev 5.1 and rev 5.5:
- * signals fixed so they work on MS-DOS
- * Added MKS arguments code so argv can be large
- * added code to handle slashes a'la Unix
- * added more file extensions to system from MS-DOS
- *
- * Revision 5.2 90/07/15 11:32:33 ROOT_DOS
- * DOS version of RCS 4.0 checked in for MODS
- * by lfk@athena.mit.edu
- * Also update to MSC 6.0
- *
- * 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();
-
- #ifdef MSDOS
- extern char *gettmpdir();
- char tmpdir[NCPPN];
- #endif /* MSDOS */
-
- char *RCSfilename;
- char *workfilename;
- char * tempfile;
- FILE * file1, * file2; /*file descriptors for comparison */
-
-
- #ifdef MKS
- main(int argc, char *argv[], char *env[])
- #else
- main (argc, argv)
- int argc;
- char * argv[];
- #endif /* MKS */
- {
- 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 */
- #ifdef MKS
- int z = 0;
- int ARGC = 0;
- char **tmp;
- char *env_name;
- # define MAXARGS 500 /* This means 500 items on the command line */
- if (!(tmp = (char **)malloc(sizeof(char *)*(MAXARGS+1)))) {
- fprintf(stderr, "%s: can't allocate space for arguments\n",argv[0]);
- exit(1);
- }
- for ( z = 0 ; env[z] != NULL; z++) { /* loop through environment */
- if (*env[z] == '~') { /* testing for entries begining with '~' */
- *++env[z]; /* increment pointer to delete '~' */
- tmp[ARGC++] = env[z]; /* add it to our new array */
- if (z >= MAXARGS) {
- fprintf(stderr, "%s: can't handle any more arguments\n", argv[0]);
- goto list;
- }
- }
- else if (*env[z] == '_') { /* testing for entries begining with _ */
- *++env[z] ; *++env[z]; /* move past the '_' and the '=' */
- env_name = env[z]; /* copy the name */
- }
- }
- list:
- if ( STREQ( (char *) argv[0] , env_name ) ) { /* test name against startup args */
- /* environment arguments meant for this program */
- # ifdef DEBUG
- printf("Using shell supplied args\n");
- # endif
- argc = ARGC;
- tmp[ARGC] = NULL; /* the terminal NULL */
- argv = tmp;
- }
- # ifdef DEBUG
- else
- printf("Using startup supplied args\n");
- # endif /* debug */
- #endif /* MKS */
-
- 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);
-
- #ifdef MSDOS
- strcpy( tmpdir, gettmpdir() );
- #endif /* MSDOS */
-
- /* 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;
-
- #ifdef MSDOS
- tempfile=mktempfile( tmpdir ,TMPFILE1);
- #else
- tempfile=mktempfile("/tmp/",TMPFILE1);
- #endif /* MSDOS */
- 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);
- }
-
-