smash the HEAD with the contents of b_cmd. HEAD_PRE_CMD_SMASH and

[fs/lustre-release.git] / lustre / scripts / version_tag.pl

diff --git a/lustre/scripts/version_tag.pl b/lustre/scripts/version_tag.pl
new file mode 100644 (file)
index 0000000..334d2d6
--- /dev/null
+++ b/lustre/scripts/version_tag.pl
@@ -0,0 +1,188 @@
+#!/usr/bin/perl
+# -*- Mode: perl; indent-tabs-mode: nil; cperl-indent-level: 4 -*-
+
+use strict;
+use diagnostics;
+use IO::File;
+use Time::Local;
+
+my $pristine = 1;
+my $kernver;
+
+# Use the CVS tag first otherwise use the portals version
+sub get_tag()
+{
+    my $tag;
+    my $line;
+
+    my $tagfile = new IO::File;
+    if (!$tagfile->open("CVS/Tag")) {
+        my $verfile = new IO::File;
+        if (!$verfile->open("portals/include/config.h")) {
+          return "UNKNOWN";
+        }
+        while(defined($line = <$verfile>)) {
+            $line =~ /\#define VERSION "(.*)"/;
+            if ($1) {
+                $tag = $1;
+                last;
+            }
+        }
+        $verfile->close();
+        return $tag
+    } else {
+        my $tmp = <$tagfile>;
+        $tagfile->close();
+
+        $tmp =~ m/T(.*)/;
+        return $1;
+    }
+}
+
+sub get_latest_mtime()
+{
+    my %months=("Jan" => 0, "Feb" => 1, "Mar" => 2, "Apr" => 3, "May" => 4,
+                "Jun" => 5, "Jul" => 6, "Aug" => 7, "Sep" => 8, "Oct" => 9,
+                "Nov" => 10, "Dec" => 11);
+
+    my $last_mtime = 0;
+    my @entries = `find . -name Entries`;
+    my $entry_file;
+    foreach $entry_file (@entries) {
+        chomp($entry_file);
+        my $entry = new IO::File;
+        if (!$entry->open($entry_file)) {
+            die "unable to open $entry_file: $!\n";
+        }
+        my $line;
+        while (defined($line = <$entry>)) {
+            chomp($line);
+            #print "line: $line\n";
+            my ($junk, $file, $version, $date) = split(/\//, $line);
+
+            #print "junk: $junk\nfile: $file\nver: $version\ndate: $date\n";
+            #print "last_mtime: " . localtime($last_mtime) . "\n";
+
+            if ($junk eq "D" ||
+                $file eq "lustre.spec.in" ||
+                $file !~ m/\.(c|h|am|in)$/) {
+                next;
+            }
+
+            my $cur_dir = $entry_file;
+            $cur_dir =~ s/\/CVS\/Entries$//;
+            my @statbuf = stat("$cur_dir/$file");
+            my $mtime = $statbuf[9];
+            if (!defined($mtime)) {
+                next;
+            }
+            my $local_date = gmtime($mtime);
+            if ($local_date ne $date &&
+                $file ne "lustre.spec.in") {
+                #print "$file : " . localtime($mtime) . "\n";
+                $pristine = 0;
+            }
+
+            if ($mtime > $last_mtime) {
+                $last_mtime = $mtime;
+            }
+
+            if ($date) {
+                my @t = split(/ +/, $date);
+                if (int(@t) != 5) {
+                    #print "skipping: $date\n";
+                    next;
+                }
+                my ($hours, $min, $sec) = split(/:/, $t[3]);
+                my ($mon, $mday, $year) = ($t[1], $t[2], $t[4]);
+                my $secs = 0;
+                $mon = $months{$mon};
+                $secs = timelocal($sec, $min, $hours, $mday, $mon, $year);
+                if ($secs > $last_mtime) {
+                    $last_mtime = $secs;
+                }
+            }
+        }
+        $entry->close();
+    }
+    return $last_mtime;
+}
+
+sub get_linuxdir()
+{
+    my $config = new IO::File;
+    my ($line, $dir);
+    if (!$config->open("Makefile")) {
+        die "Run ./configure first\n";
+    }
+    while (defined($line = <$config>)) {
+        chomp($line);
+        if ($line =~ /LINUX :?= (.*)/) {
+            $dir = $1;
+            last;
+        }
+    }
+    $config->close();
+    my $ver = new IO::File;
+    if (!$ver->open("$dir/include/linux/version.h")) {
+        die "Run make dep on $dir\n";
+    }
+    while(defined($line = <$ver>)) {
+        $line =~ /\#define UTS_RELEASE "(.*)"/;
+        if ($1) {
+            $kernver = $1;
+            last;
+        }
+    }
+    $ver->close();
+    chomp($kernver);
+    $dir =~ s/\//\./g;
+    return $dir;
+}
+
+sub generate_ver($$$)
+{
+    my $tag = shift;
+    my $mtime = shift;
+    my $linuxdir = shift;
+
+    #print "localtime: " . localtime($mtime) . "\n";
+
+    my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday, $isdst) =
+      localtime($mtime);
+    $year += 1900;
+    $mon++;
+    my $show_last = sprintf("%04d%02d%02d%02d%02d%02d", $year, $mon, $mday,
+                            $hour, $min, $sec);
+
+    print "#define BUILD_VERSION \"";
+    if ($pristine) {
+        print "$tag-$show_last-PRISTINE-$linuxdir-$kernver\"\n";
+    } else {
+        print "$tag-$show_last-CHANGED-$linuxdir-$kernver\"\n";
+    }
+}
+chomp(my $cwd = `pwd`);
+
+# ARGV[0] = srcdir
+# ARGV[1] = builddir
+
+# for get_latest_mtime and get_tag you need to be in srcdir
+
+if ($ARGV[0]) {
+    chdir($ARGV[0]);
+}
+my $tag = get_tag();
+my $mtime = get_latest_mtime();
+
+# for get_linuxdir you need to be in builddir 
+
+if ($ARGV[1]) {
+   chdir($cwd);
+   chdir($ARGV[1]);
+}
+my $linuxdir = get_linuxdir();
+
+generate_ver($tag, $mtime, $linuxdir);
+
+exit(0);