build: include git info
If enabled with --with-pkg-gitversion on ./configure, this will append
git version strings and branch information at the following places:
- overall version number: 0.99.21-g0123456
- login motd and show version: tag information + git id + branches
Sample output:
Hello, this is Quagga (version 0.99.21-g14b49ad-dirty).
Copyright 1996-2005 Kunihiro Ishiguro, et al.
This is a git build of quagga_0_99_21_release-106-g14b49ad-dirty
Associated branch(es):
local:master
[v2]: fix build without gitinfo (add "else" branch)
[v2]: fix for repos without any tags (different git describe output)
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
diff --git a/lib/.gitignore b/lib/.gitignore
index 00af85a..02aa432 100644
--- a/lib/.gitignore
+++ b/lib/.gitignore
@@ -5,6 +5,8 @@
*.la
version.c
version.h
+gitversion.h
+gitversion.h.tmp
.deps
.nfs*
.libs
diff --git a/lib/Makefile.am b/lib/Makefile.am
index e00ad54..690c18f 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -14,7 +14,7 @@
zclient.c sockopt.c smux.c agentx.c snmp.c md5.c if_rmap.c keychain.c privs.c \
sigevent.c pqueue.c jhash.c memtypes.c workqueue.c
-BUILT_SOURCES = memtypes.h route_types.h
+BUILT_SOURCES = memtypes.h route_types.h gitversion.h
libzebra_la_DEPENDENCIES = @LIB_REGEX@
@@ -36,3 +36,25 @@
route_types.h: $(srcdir)/route_types.txt $(srcdir)/route_types.pl
@PERL@ $(srcdir)/route_types.pl < $(srcdir)/route_types.txt > $@
+
+if GIT_VERSION
+
+# bit of a trick here to always have up-to-date git stamps without triggering
+# unneccessary rebuilds. .PHONY causes the .tmp file to be rebuilt always,
+# but if we use that on gitversion.h it'll ripple through the .c file deps.
+# (even if gitversion.h's file timestamp doesn't change, make will think it
+# did, because of .PHONY...)
+
+.PHONY: gitversion.h.tmp
+.SILENT: gitversion.h gitversion.h.tmp
+GITH=gitversion.h
+gitversion.h.tmp: $(srcdir)/../.git
+ @PERL@ $(srcdir)/gitversion.pl $(srcdir) > ${GITH}.tmp
+gitversion.h: gitversion.h.tmp
+ { test -f ${GITH} && diff -s -q ${GITH}.tmp ${GITH}; } || cp -v ${GITH}.tmp ${GITH}
+
+else
+.PHONY: gitversion.h
+gitversion.h:
+ /bin/true
+endif
diff --git a/lib/command.c b/lib/command.c
index 64563b5..3b3fada 100644
--- a/lib/command.c
+++ b/lib/command.c
@@ -84,7 +84,7 @@
"\r\n\
Hello, this is " QUAGGA_PROGNAME " (version " QUAGGA_VERSION ").\r\n\
" QUAGGA_COPYRIGHT "\r\n\
-\r\n";
+" GIT_INFO "\r\n";
static const struct facility_map {
@@ -2409,7 +2409,7 @@
{
vty_out (vty, "Quagga %s (%s).%s", QUAGGA_VERSION, host.name?host.name:"",
VTY_NEWLINE);
- vty_out (vty, "%s%s", QUAGGA_COPYRIGHT, VTY_NEWLINE);
+ vty_out (vty, "%s%s%s", QUAGGA_COPYRIGHT, GIT_INFO, VTY_NEWLINE);
return CMD_SUCCESS;
}
diff --git a/lib/gitversion.pl b/lib/gitversion.pl
new file mode 100644
index 0000000..448f13d
--- /dev/null
+++ b/lib/gitversion.pl
@@ -0,0 +1,47 @@
+#!/usr/bin/perl -w
+use strict;
+
+my $dir = shift;
+chdir $dir || die "$dir: $!\n";
+
+my $gitdesc = `git describe --always --dirty || echo -- \"0-gUNKNOWN\"`;
+chomp $gitdesc;
+my $gitsuffix = ($gitdesc =~ /([0-9a-fA-F]{7}(-dirty)?)$/) ? $1 : "-gUNKNOWN";
+
+printf STDERR "git suffix: %s\n", $gitsuffix;
+printf "#define GIT_SUFFIX \"%s\"\n", $gitsuffix;
+
+my $gitcommit = `git log -1 --format=\"%H\" || echo DEADBEEF`;
+chomp $gitcommit;
+open(BRANCHES, "git branch -a -v --abbrev=40|") || die "git branch: $!\n";
+my @names = ();
+while (<BRANCHES>) {
+ chomp $_;
+ if (/\s+(.*?)\s+$gitcommit/) {
+ my $branch = $1;
+ if ($branch =~ /^remotes\/(.*?)(\/.*)$/) {
+ my $path = $2;
+ my $url = `git config --get "remote.$1.url"`;
+ chomp $url;
+ $url =~ s/^(git:|https?:|git@)\/\/github\.com/github/i;
+ $url =~ s/^(ssh|git):\/\/git\.sv\.gnu\.org\/srv\/git\//savannah:/i;
+ $url =~ s/^(ssh|git):\/\/git\.savannah\.nongnu\.org\//savannah:/i;
+
+ push @names, $url.$path;
+ } else {
+ push @names, 'local:'.$branch;
+ }
+ }
+}
+
+printf STDERR "git branches: %s\n", join(", ", @names);
+
+my $cr = "\\r\\n\\";
+printf <<EOF, $gitdesc, join($cr."\n\\t", @names);
+#define GIT_INFO "$cr
+This is a git build of %s$cr
+Associated branch(es):$cr
+\\t%s$cr
+"
+EOF
+
diff --git a/lib/version.h.in b/lib/version.h.in
index 429474d..7e9985f 100644
--- a/lib/version.h.in
+++ b/lib/version.h.in
@@ -24,9 +24,20 @@
#ifndef _ZEBRA_VERSION_H
#define _ZEBRA_VERSION_H
+#ifdef GIT_VERSION
+#include "gitversion.h"
+#endif
+
+#ifndef GIT_SUFFIX
+#define GIT_SUFFIX ""
+#endif
+#ifndef GIT_INFO
+#define GIT_INFO ""
+#endif
+
#define QUAGGA_PROGNAME "@PACKAGE_NAME@"
-#define QUAGGA_VERSION "@PACKAGE_VERSION@"
+#define QUAGGA_VERSION "@PACKAGE_VERSION@" GIT_SUFFIX
#define ZEBRA_BUG_ADDRESS "@PACKAGE_BUGREPORT@"