[src/trunk]: src/usr.bin/cvslatest deal with cvs meta-data directories not ca...

[christos <christos%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/528f53c512c3
branches:  trunk
changeset: 831096:528f53c512c3
user:      christos <christos%NetBSD.org@localhost>
date:      Sun Mar 11 14:59:41 2018 +0000

description:
deal with cvs meta-data directories not called CVS.

diffstat:

 usr.bin/cvslatest/cvslatest.c |  54 ++++++++++++++++++++++++++++++++++++++++--
 1 files changed, 51 insertions(+), 3 deletions(-)

diffs (93 lines):

diff -r 837dc0e7896e -r 528f53c512c3 usr.bin/cvslatest/cvslatest.c
--- a/usr.bin/cvslatest/cvslatest.c     Sun Mar 11 13:38:02 2018 +0000
+++ b/usr.bin/cvslatest/cvslatest.c     Sun Mar 11 14:59:41 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: cvslatest.c,v 1.6 2017/09/24 09:43:27 joerg Exp $      */
+/*     $NetBSD: cvslatest.c,v 1.7 2018/03/11 14:59:41 christos Exp $   */
 
 /*-
  * Copyright (c) 2016 The NetBSD Foundation, Inc.
@@ -38,7 +38,7 @@
 #endif
 
 #include <sys/cdefs.h>
-__RCSID("$NetBSD: cvslatest.c,v 1.6 2017/09/24 09:43:27 joerg Exp $");
+__RCSID("$NetBSD: cvslatest.c,v 1.7 2018/03/11 14:59:41 christos Exp $");
 
 /*
  * Find the latest timestamp in a set of CVS trees, by examining the
@@ -52,6 +52,7 @@
 #include <string.h>
 #include <stdlib.h>
 #include <unistd.h>
+#include <dirent.h>
 #include <err.h>
 #include <fts.h>
 #include <time.h>
@@ -174,11 +175,55 @@
        exit(EXIT_FAILURE);
 }
 
+static int
+checkDir(char *path, size_t pathlen, const char *name)
+{
+       static const char *files[] = {
+               "Entries", "Root", "Repository",
+       };
+       size_t i;
+
+       for (i = 0; i < __arraycount(files); i++) {
+               snprintf(path, pathlen, "%s/%s", name, files[i]);
+               if (access(path, F_OK) == -1)
+                       return 0;
+       }
+
+       return 1;
+}
+
+static const char *
+findCVSDir(char *path, size_t pathlen, const char *name)
+{
+       DIR *dirp;
+       struct dirent *dp;
+       const char *n;
+
+       if ((dirp = opendir(name)) == NULL)
+               err(EXIT_FAILURE, "Can't open `%s'", name);
+
+       while ((dp = readdir(dirp)) != NULL) {
+               n = dp->d_name;
+               if (n[0] == '.' && (n[1] == '\0' ||
+                   (n[1] == '.' && n[2] == '\0')))
+                       continue;
+               if (checkDir(path, pathlen, n))
+                       goto out;
+       }
+       n = "CVS";
+out:
+       closedir(dirp);
+       strlcpy(path, n, pathlen);
+       return path;
+}
+
+
 int
 main(int argc, char *argv[])
 {
        struct latest lat;
-       const char *name = "CVS";
+       const char *name = NULL;
+       char path[MAXPATHLEN];
        int c;
 
        while ((c = getopt(argc, argv, "din:")) != -1)
@@ -202,6 +247,9 @@
        // So that mktime behaves consistently
        setenv("TZ", "UTC", 1);
 
+       if (name == NULL)
+               name = findCVSDir(path, sizeof(path), argv[optind]);
+
        cvsscan(argv + optind, name, &lat);
        if (debug)
                printlat(&lat);