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1.1 ! root 1: /* ! 2: * rcsmerge operation ! 3: */ ! 4: #ifndef lint ! 5: static char rcsid[]= ! 6: "$Header: /arthur/src/local/bin/rcs/src/RCS/rcsmerge.c,v 4.3 87/10/18 10:38:02 narten Exp $ Purdue CS"; ! 7: #endif ! 8: /***************************************************************************** ! 9: * join 2 revisions with respect to a third ! 10: ***************************************************************************** ! 11: * ! 12: * Copyright (C) 1982 by Walter F. Tichy ! 13: * Purdue University ! 14: * Computer Science Department ! 15: * West Lafayette, IN 47907 ! 16: * ! 17: * All rights reserved. No part of this software may be sold or distributed ! 18: * in any form or by any means without the prior written permission of the ! 19: * author. ! 20: * Report problems and direct all inquiries to Tichy@purdue (ARPA net). ! 21: */ ! 22: ! 23: ! 24: /* $Log: rcsmerge.c,v $ ! 25: * Revision 4.3 87/10/18 10:38:02 narten ! 26: * Updating version numbers. Changes relative to version 1.1 ! 27: * actually relative to 4.1 ! 28: * ! 29: * Revision 1.3 87/09/24 14:00:31 narten ! 30: * Sources now pass through lint (if you ignore printf/sprintf/fprintf ! 31: * warnings) ! 32: * ! 33: * Revision 1.2 87/03/27 14:22:36 jenkins ! 34: * Port to suns ! 35: * ! 36: * Revision 1.1 84/01/23 14:50:36 kcs ! 37: * Initial revision ! 38: * ! 39: * Revision 4.1 83/03/28 11:14:57 wft ! 40: * Added handling of default branch. ! 41: * ! 42: * Revision 3.3 82/12/24 15:29:00 wft ! 43: * Added call to catchsig(). ! 44: * ! 45: * Revision 3.2 82/12/10 21:32:02 wft ! 46: * Replaced getdelta() with gettree(); improved error messages. ! 47: * ! 48: * Revision 3.1 82/11/28 19:27:44 wft ! 49: * Initial revision. ! 50: * ! 51: */ ! 52: #include "rcsbase.h" ! 53: #ifndef lint ! 54: static char rcsbaseid[] = RCSBASE; ! 55: #endif ! 56: ! 57: extern int cleanup(); /* cleanup after signals */ ! 58: extern char * mktempfile(); /*temporary file name generator */ ! 59: extern struct hshentry * genrevs(); /*generate delta numbers */ ! 60: extern int nerror; /*counter for errors */ ! 61: ! 62: char *RCSfilename; ! 63: char *workfilename; ! 64: char * temp1file, * temp2file; ! 65: ! 66: main (argc, argv) ! 67: int argc; char **argv; ! 68: { ! 69: char * cmdusage; ! 70: char command[NCPPN+revlength+40]; ! 71: int revnums; /* counter for revision numbers given */ ! 72: int tostdout; ! 73: char * rev1, * rev2; /*revision numbers*/ ! 74: char numericrev[revlength]; /* holds expanded revision number */ ! 75: struct hshentry * gendeltas[hshsize];/*stores deltas to be generated*/ ! 76: struct hshentry * target; ! 77: ! 78: catchints(); ! 79: cmdid = "rcsmerge"; ! 80: cmdusage = "command format:\n rcsmerge -p -rrev1 -rrev2 file\n rcsmerge -p -rrev1 file"; ! 81: revnums=0;tostdout=false; ! 82: ! 83: while (--argc,++argv, argc>=1 && ((*argv)[0] == '-')) { ! 84: switch ((*argv)[1]) { ! 85: case 'p': ! 86: tostdout=true; ! 87: /* falls into -r */ ! 88: case 'r': ! 89: if ((*argv)[2]!='\0') { ! 90: if (revnums==0) { ! 91: rev1= *argv+2; revnums=1; ! 92: } elif (revnums==1) { ! 93: rev2= *argv+2; revnums=2; ! 94: } else { ! 95: faterror("too many revision numbers"); ! 96: } ! 97: } /* do nothing for empty -r or -p */ ! 98: break; ! 99: ! 100: default: ! 101: faterror("unknown option: %s\n%s", *argv,cmdusage); ! 102: }; ! 103: } /* end of option processing */ ! 104: ! 105: if (argc<1) faterror("No input file\n%s",cmdusage); ! 106: if (revnums<1) faterror("no base revision number given"); ! 107: ! 108: /* now handle all filenames */ ! 109: ! 110: if (pairfilenames(argc,argv,true,false)==1) { ! 111: ! 112: if (argc>2 || (argc==2&&argv[1]!=nil)) ! 113: warn("too many arguments"); ! 114: diagnose("RCS file: %s",RCSfilename); ! 115: if (!(access(workfilename,4)==0)) ! 116: faterror("Can't open %s",workfilename); ! 117: ! 118: if (!trysema(RCSfilename,false)) goto end; /* give up */ ! 119: ! 120: gettree(); /* reads in the delta tree */ ! 121: ! 122: if (Head==nil) faterror("no revisions present"); ! 123: ! 124: ! 125: if (!expandsym(rev1,numericrev)) goto end; ! 126: if (!(target=genrevs(numericrev, (char *)nil, (char *)nil, (char *)nil,gendeltas))) goto end; ! 127: rev1=target->num; ! 128: if (revnums==1) /*get default for rev2 */ ! 129: rev2=Dbranch!=nil?Dbranch->num:Head->num; ! 130: if (!expandsym(rev2,numericrev)) goto end; ! 131: if (!(target=genrevs(numericrev, (char *)nil, (char *)nil, (char *)nil,gendeltas))) goto end; ! 132: rev2=target->num; ! 133: ! 134: temp1file=mktempfile("/tmp/",TMPFILE1); ! 135: temp2file=mktempfile("/tmp/",TMPFILE2); ! 136: ! 137: diagnose("retrieving revision %s",rev1); ! 138: VOID sprintf(command,"%s/co -q -p%s %s > %s\n", ! 139: TARGETDIR,rev1,RCSfilename,temp1file); ! 140: if (system(command)){ ! 141: faterror("co failed"); ! 142: } ! 143: diagnose("retrieving revision %s",rev2); ! 144: VOID sprintf(command,"%s/co -q -p%s %s > %s\n", ! 145: TARGETDIR,rev2,RCSfilename,temp2file); ! 146: if (system(command)){ ! 147: faterror("co failed"); ! 148: } ! 149: diagnose("Merging differences between %s and %s into %s%s", ! 150: rev1, rev2, workfilename, ! 151: tostdout?"; result to stdout":""); ! 152: ! 153: VOID sprintf(command,"%s %s%s %s %s %s %s\n",MERGE,tostdout?"-p ":"", ! 154: workfilename,temp1file,temp2file,workfilename,rev2); ! 155: if (system(command)) { ! 156: faterror("merge failed"); ! 157: } ! 158: } ! 159: ! 160: end: ! 161: VOID cleanup(); ! 162: exit(nerror!=0); ! 163: ! 164: } ! 165:
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