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Annotation of src/usr.bin/rcs/rcsclean.c, Revision 1.1

1.1     ! joris       1: /*     $OpenBSD: rcsdiff.c,v 1.1 2005/10/06 01:24:25 joris Exp $       */
        !             2: /*
        !             3:  * Copyright (c) 2005 Joris Vink <joris@openbsd.org>
        !             4:  * All rights reserved.
        !             5:  *
        !             6:  * Redistribution and use in source and binary forms, with or without
        !             7:  * modification, are permitted provided that the following conditions
        !             8:  * are met:
        !             9:  *
        !            10:  * 1. Redistributions of source code must retain the above copyright
        !            11:  *    notice, this list of conditions and the following disclaimer.
        !            12:  * 2. The name of the author may not be used to endorse or promote products
        !            13:  *    derived from this software without specific prior written permission.
        !            14:  *
        !            15:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
        !            16:  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
        !            17:  * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
        !            18:  * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
        !            19:  * EXEMPLARY, OR CONSEQUENTIAL  DAMAGES (INCLUDING, BUT NOT LIMITED TO,
        !            20:  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
        !            21:  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
        !            22:  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
        !            23:  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
        !            24:  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
        !            25:  */
        !            26:
        !            27: #include <sys/param.h>
        !            28: #include <sys/stat.h>
        !            29:
        !            30: #include <dirent.h>
        !            31: #include <stdio.h>
        !            32: #include <stdlib.h>
        !            33: #include <string.h>
        !            34: #include <unistd.h>
        !            35:
        !            36: #include "diff.h"
        !            37: #include "log.h"
        !            38: #include "rcs.h"
        !            39: #include "rcsprog.h"
        !            40:
        !            41: extern char *__progname;
        !            42: static int rcsclean_file(char *, RCSNUM *);
        !            43:
        !            44: int
        !            45: rcsclean_main(int argc, char **argv)
        !            46: {
        !            47:        int i, ch;
        !            48:        RCSNUM *rev;
        !            49:        DIR *dirp;
        !            50:        struct dirent *dp;
        !            51:
        !            52:        rev = RCS_HEAD_REV;
        !            53:
        !            54:        while ((ch = getopt(argc, argv, "qV")) != -1) {
        !            55:                switch (ch) {
        !            56:                case 'q':
        !            57:                        verbose = 0;
        !            58:                        break;
        !            59:                case 'V':
        !            60:                        printf("%s\n", rcs_version);
        !            61:                        exit(0);
        !            62:                default:
        !            63:                        break;
        !            64:                }
        !            65:        }
        !            66:
        !            67:        argc -= optind;
        !            68:        argv += optind;
        !            69:
        !            70:        if (argc == 0) {
        !            71:                if ((dirp = opendir(".")) == NULL) {
        !            72:                        cvs_log(LP_ERRNO, "failed to open directory '.'");
        !            73:                        (usage)();
        !            74:                        exit(1);
        !            75:                }
        !            76:
        !            77:                while ((dp = readdir(dirp)) != NULL) {
        !            78:                        if (dp->d_type == DT_DIR)
        !            79:                                continue;
        !            80:                        rcsclean_file(dp->d_name, rev);
        !            81:                }
        !            82:
        !            83:                closedir(dirp);
        !            84:        } else {
        !            85:                for (i = 0; i < argc; i++)
        !            86:                        rcsclean_file(argv[i], rev);
        !            87:        }
        !            88:
        !            89:        return (0);
        !            90: }
        !            91:
        !            92: void
        !            93: rcsclean_usage(void)
        !            94: {
        !            95:        fprintf(stderr, "usage %s [file] ...\n", __progname);
        !            96: }
        !            97:
        !            98: static int
        !            99: rcsclean_file(char *fname, RCSNUM *rev)
        !           100: {
        !           101:        int match;
        !           102:        RCSFILE *file;
        !           103:        char fpath[MAXPATHLEN];
        !           104:        RCSNUM *frev;
        !           105:        BUF *b1, *b2;
        !           106:        char *s1, *s2, *c1, *c2;
        !           107:
        !           108:        match = 1;
        !           109:        if (rcs_statfile(fname, fpath, sizeof(fpath)) < 0)
        !           110:                return (-1);
        !           111:
        !           112:        if ((file = rcs_open(fpath, RCS_RDWR)) == NULL)
        !           113:                return (-1);
        !           114:
        !           115:        if (rev == RCS_HEAD_REV)
        !           116:                frev = file->rf_head;
        !           117:        else
        !           118:                frev = rev;
        !           119:
        !           120:        if ((b1 = rcs_getrev(file, frev)) == NULL) {
        !           121:                cvs_log(LP_ERR, "failed to get needed revision");
        !           122:                rcs_close(file);
        !           123:                return (-1);
        !           124:        }
        !           125:
        !           126:        if ((b2 = cvs_buf_load(fname, BUF_AUTOEXT)) == NULL) {
        !           127:                cvs_log(LP_ERRNO, "failed to load '%s'", fname);
        !           128:                rcs_close(file);
        !           129:                return (-1);
        !           130:        }
        !           131:
        !           132:        cvs_buf_putc(b1, '\0');
        !           133:        cvs_buf_putc(b2, '\0');
        !           134:
        !           135:        c1 = cvs_buf_release(b1);
        !           136:        c2 = cvs_buf_release(b2);
        !           137:
        !           138:        for (s1 = c1, s2 = c2; *s1 && *s2; *s1++, *s2++) {
        !           139:                if (*s1 != *s2) {
        !           140:                        match = 0;
        !           141:                        break;
        !           142:                }
        !           143:        }
        !           144:
        !           145:        free(c1);
        !           146:        free(c2);
        !           147:
        !           148:        if (match) {
        !           149:                if (verbose)
        !           150:                        printf("rm -f %s\n", fname);
        !           151:                (void)unlink(fname);
        !           152:        }
        !           153:
        !           154:        rcs_close(file);
        !           155:        return (0);
        !           156: }