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[src/trunk]: src/usr.bin Add a program to find the latest timestamp in a cvs ...
details: https://anonhg.NetBSD.org/src/rev/40e85d846bef
branches: trunk
changeset: 343191:40e85d846bef
user: christos <christos%NetBSD.org@localhost>
date: Sun Jan 24 17:08:16 2016 +0000
description:
Add a program to find the latest timestamp in a cvs repository
diffstat:
usr.bin/Makefile | 4 +-
usr.bin/cvslatest/Makefile | 6 +
usr.bin/cvslatest/cvslatest.1 | 76 ++++++++++++++++
usr.bin/cvslatest/cvslatest.c | 195 ++++++++++++++++++++++++++++++++++++++++++
4 files changed, 279 insertions(+), 2 deletions(-)
diffs (truncated from 307 to 300 lines):
diff -r e1f57f71809d -r 40e85d846bef usr.bin/Makefile
--- a/usr.bin/Makefile Sun Jan 24 16:47:50 2016 +0000
+++ b/usr.bin/Makefile Sun Jan 24 17:08:16 2016 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.223 2016/01/14 04:27:26 christos Exp $
+# $NetBSD: Makefile,v 1.224 2016/01/24 17:08:16 christos Exp $
# from: @(#)Makefile 8.3 (Berkeley) 1/7/94
.include <bsd.own.mk>
@@ -7,7 +7,7 @@
banner basename biff bthset btkey btpin \
bzip2 bzip2recover c89 c99 cal calendar cap_mkdb cdplay \
checknr chflags chpass cksum cmp cleantags col colcrt colrm \
- column comm compress config crunch csplit ctags cut \
+ column comm compress config crunch csplit ctags cut cvslatest \
deroff db dirname du \
eject elf2aout elf2ecoff env error expand extattr \
false fdformat fgen fincore find finger flock fmt fold fpr from \
diff -r e1f57f71809d -r 40e85d846bef usr.bin/cvslatest/Makefile
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/usr.bin/cvslatest/Makefile Sun Jan 24 17:08:16 2016 +0000
@@ -0,0 +1,6 @@
+# $NetBSD: Makefile,v 1.1 2016/01/24 17:08:16 christos Exp $
+
+WARNS=6
+PROG= cvslatest
+
+.include <bsd.prog.mk>
diff -r e1f57f71809d -r 40e85d846bef usr.bin/cvslatest/cvslatest.1
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/usr.bin/cvslatest/cvslatest.1 Sun Jan 24 17:08:16 2016 +0000
@@ -0,0 +1,76 @@
+.\" $NetBSD: cvslatest.1,v 1.1 2016/01/24 17:08:16 christos Exp $
+.\" Copyright (C) 2015 Thomas Klausner
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\" notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\" notice, this list of conditions and the following disclaimer in
+.\" the documentation and/or other materials provided with the
+.\" distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS
+.\" OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+.\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
+.\" DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+.\" GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+.\" IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+.\" OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+.\" IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+.\"
+.Dd January 7, 2016
+.Dt CVSLATEST 1
+.Os
+.Sh NAME
+.Nm cvslatest
+.Nd find latest timestamp in a set of CVS trees
+.Sh SYNOPSIS
+.Nm
+.Op Fl di
+.Op Fl n Ar name
+.Ar dir Op ...
+.Sh DESCRIPTION
+.Nm
+recursively scans the directories given on the command line
+and looks for
+.Xr cvs 1
+.Pa CVS/Entries
+files.
+.Nm
+then reads these files and parses the timestamps inside.
+Finally,
+.Nm
+prints the UNIX timestamp (seconds since UNIX epoch) of the
+newest file found.
+.Pp
+Supported options:
+.Bl -tag -width XnXnameXX
+.It Fl d
+Turn on debugging output.
+.It Fl i
+Ignore malformed timestamps in
+.Pa CVS/Entries
+files.
+.It Fl n Ar name
+Use
+.Ar name
+instead of
+.Pa CVS
+as the
+.Xr cvs 1
+information directory.
+.El
+.Sh EXIT STATUS
+.Ex -std
+.Sh SEE ALSO
+.Xr cvs 1 ,
+.Xr date 1
+.Sh RETURN VALUES
+.Ex -std
+.Sh AUTHORS
+.An Christos Zoulas Aq Mt christos%NetBSD.org@localhost
diff -r e1f57f71809d -r 40e85d846bef usr.bin/cvslatest/cvslatest.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/usr.bin/cvslatest/cvslatest.c Sun Jan 24 17:08:16 2016 +0000
@@ -0,0 +1,195 @@
+/* $NetBSD: cvslatest.c,v 1.1 2016/01/24 17:08:16 christos Exp $ */
+
+/*-
+ * Copyright (c) 2016 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Christos Zoulas.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#include <sys/cdefs.h>
+__RCSID("$NetBSD: cvslatest.c,v 1.1 2016/01/24 17:08:16 christos Exp $");
+
+/*
+ * Find the latest timestamp in a set of CVS trees, by examining the
+ * Entries files
+ */
+
+#include <sys/param.h>
+#include <sys/types.h>
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <err.h>
+#include <fts.h>
+#include <time.h>
+
+static int debug = 0;
+static int ignore = 0;
+
+struct latest {
+ time_t time;
+ char path[MAXPATHLEN];
+};
+
+static void
+printlat(const struct latest *lat)
+{
+ fprintf(stderr, "%s %s", lat->path, ctime(&lat->time));
+}
+
+static void
+getrepo(const char *path, char *repo, size_t maxrepo)
+{
+ FILE *fp;
+ char name[MAXPATHLEN];
+ char *ptr;
+
+ snprintf(name, sizeof(name), "%s/Repository", path);
+ if ((fp = fopen(name, "r")) == NULL)
+ err(EXIT_FAILURE, "Can't open `%s'", name);
+ if (fgets(repo, (int)maxrepo, fp) == NULL)
+ err(EXIT_FAILURE, "Can't read `%s'", name);
+ if ((ptr = strchr(repo, '\n')) == NULL)
+ errx(EXIT_FAILURE, "Malformed line in `%s'", name);
+ *ptr = '\0';
+ fclose(fp);
+}
+
+static void
+getlatest(const char *path, const char *repo, struct latest *lat)
+{
+ static const char fmt[] = "%a %b %d %H:%M:%S %Y";
+ char name[MAXPATHLEN];
+ char entry[MAXPATHLEN * 2];
+ char *fn, *dt, *p;
+ time_t t;
+ struct tm tm;
+ FILE *fp;
+
+ snprintf(name, sizeof(name), "%s/Entries", path);
+ if ((fp = fopen(name, "r")) == NULL)
+ err(EXIT_FAILURE, "Can't open `%s'", name);
+
+ while (fgets(entry, (int)sizeof(entry), fp) != NULL) {
+ if (entry[0] != '/')
+ continue;
+ if ((fn = strtok(entry, "/")) == NULL)
+ goto mal;
+ if (strtok(NULL, "/") == NULL)
+ goto mal;
+ if ((dt = strtok(NULL, "/")) == NULL)
+ goto mal;
+ if ((p = strptime(dt, fmt, &tm)) == NULL || *p) {
+ warnx("Malformed time `%s' in `%s'", dt, name);
+ if (!ignore)
+ exit(EXIT_FAILURE);
+ }
+ if ((t = mktime(&tm)) == (time_t)-1)
+ errx(EXIT_FAILURE, "Time conversion `%s' in `%s'",
+ dt, name);
+ if (lat->time == 0 || lat->time < t) {
+ lat->time = t;
+ snprintf(lat->path, sizeof(lat->path),
+ "%s/%s", repo, fn);
+ if (debug)
+ printlat(lat);
+ }
+ }
+
+ fclose(fp);
+ return;
+
+mal:
+ errx(EXIT_FAILURE, "Malformed line in `%s'", name);
+}
+
+static void
+cvsscan(char **pathv, const char *name, struct latest *lat)
+{
+ FTS *dh;
+ char repo[MAXPATHLEN];
+ FTSENT *entry;
+
+ lat->time = 0;
+
+ dh = fts_open(pathv, FTS_PHYSICAL, NULL);
+ if (dh == NULL)
+ err(EXIT_FAILURE, "fts_open `%s'", pathv[0]);
+
+ while ((entry = fts_read(dh)) != NULL) {
+ if (entry->fts_info != FTS_D)
+ continue;
+
+ if (strcmp(entry->fts_name, name) != 0)
+ continue;
+
+ getrepo(entry->fts_path, repo, sizeof(repo));
+ getlatest(entry->fts_path, repo, lat);
+ }
+
+ (void)fts_close(dh);
+}
+
+static __dead void
+usage(void)
+{
+ fprintf(stderr, "Usage: %s [-di] [-n <name>] <path> ...\n",
+ getprogname());
+ exit(EXIT_FAILURE);
+}
+
+int
+main(int argc, char *argv[])
+{
+ struct latest lat;
+ const char *name = "CVS";
+ int c;
+
+ while ((c = getopt(argc, argv, "din:")) != -1)
+ switch (c) {
+ case 'i':
+ ignore++;
+ break;
+ case 'd':
+ debug++;
+ break;
+ case 'n':
+ name = optarg;
+ break;
+ default:
+ usage();
+ }
+
+ if (argc == optind)
+ usage();
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