167 lines
4.0 KiB
C
167 lines
4.0 KiB
C
/*
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* Copyright (c) 1996, 1997 Shigio Yamaguchi. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Shigio Yamaguchi.
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* 4. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* find.c 20-Oct-97
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*
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*/
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#include <stdio.h>
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#include <string.h>
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#include <sys/types.h>
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#include <regex.h>
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#include <sys/param.h>
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#include "gparam.h"
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#include "find.h"
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#include "die.h"
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#include "locatestring.h"
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/*
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* usage of findxxx()
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*
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* findopen();
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* while (path = findread(&length)) {
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* ...
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* }
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* findclose();
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*
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*/
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static char *skippath[] = {
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"y.tab.c",
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"y.tab.h",
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"SCCS/",
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"RCS/",
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};
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static char *ext[] = {
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"c",
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"h",
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"y",
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"s",
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"S",
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};
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static char findcom[MAXCOMLINE+1];
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static regex_t skip_area;
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static regex_t *skip;
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static FILE *ip;
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static int opened;
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int
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issource(path)
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char *path;
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{
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char *p;
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if (!(p = locatestring(path, ".", 2)))
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return 0;
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++p;
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if (sizeof(ext) != 0) {
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int i, lim = sizeof(ext)/sizeof(char *);
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for (i = 0; i < lim; i++)
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if (*ext[i] == *p && !strcmp(ext[i], p))
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return 1;
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}
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return 0;
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}
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void
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findopen(void)
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{
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char edit[512], *p, *q;
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int i, lim;
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if (opened)
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die("nested call to findopen.");
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opened = 1;
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p = findcom;
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strcpy(p, "find . \\( -type f -o -type l \\) \\(");
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p += strlen(p);
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lim = sizeof(ext)/sizeof(char *);
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for (i = 0; i < lim; i++) {
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sprintf(p, " -name '*.%s'%s", ext[i], (i + 1 < lim) ? " -o" : "");
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p += strlen(p);
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}
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sprintf(p, " \\) -print");
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if (sizeof(skippath) != 0) {
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int i, lim = sizeof(skippath)/sizeof(char *);
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/*
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* construct regular expression.
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*/
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p = edit;
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*p++ = '(';
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for (i = 0; i < lim; i++) {
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*p++ = '/';
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for (q = skippath[i]; *q; q++) {
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if (*q == '.')
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*p++ = '\\';
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*p++ = *q;
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}
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if (*(q - 1) != '/')
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*p++ = '$';
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*p++ = '|';
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}
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*(p - 1) = ')';
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*p = 0;
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/*
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* compile regular expression.
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*/
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skip = &skip_area;
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if (regcomp(skip, edit, REG_EXTENDED|REG_NEWLINE) != 0)
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die("cannot compile regular expression.");
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} else {
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skip = (regex_t *)0;
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}
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if (!(ip = popen(findcom, "r")))
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die("cannot execute find.");
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}
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char *
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findread(length)
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int *length;
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{
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static char path[MAXPATHLEN+1];
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char *p;
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while (fgets(path, MAXPATHLEN, ip)) {
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if (!skip || regexec(skip, path, 0, 0, 0) != 0) {
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p = path + strlen(path) - 1;
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if (*p != '\n')
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die("output of find(1) is wrong (findread).");
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*p = 0;
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if (length)
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*length = p - path;
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return path;
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}
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}
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return (char *)0;
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}
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void
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findclose(void)
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{
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pclose(ip);
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opened = 0;
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}
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