Restore display of source sha-1 in jackdbus log

This commit changes build info to display info about jackdbus itself,
along with libjackserver.so provided build info

Fixes https://github.com/LADI/jackdbus/issues/1

dbus/jackdbus.c

@@ -35,6 +35,7 @@
 #include <unistd.h>
 
 #include "config.h"
+#include "version.h"
 
 #include "jackdbus.h"
 #include "controller.h"
@@ -899,7 +900,9 @@ main (int argc, char **argv)
     setup_sigsegv();
 
     jack_info("------------------");
-    jack_info("Controller activated. Version %s (%s) built on %s", jack_get_version_string(), JACK_VERSION, timestamp_str);
+    jack_info("jackdbus version %s built from %s on %s", JACK_VERSION, GIT_VERSION, timestamp_str);
+    jack_info("JACK server version %s", jack_get_version_string());
+    jack_info("jackdbus controller activated.");
 
     if (!dbus_threads_init_default())
     {

dbus/wscript

@@ -33,8 +33,6 @@ def options(opt):
 
 
 def configure(conf):
-    conf.define('JACK_VERSION', conf.env['JACK_VERSION'])
-
     if not conf.check_cfg(package='dbus-1 >= 1.0.0', args='--cflags --libs', mandatory=False):
         print(
             Logs.colors.RED + 'ERROR !! jackdbus will not be built because libdbus-dev is missing' + Logs.colors.NORMAL

wscript

@@ -25,12 +25,11 @@ import shutil
 import sys
 
 from waflib import Logs, Options, TaskGen
+from waflib import Context
 from waflib.Build import BuildContext, CleanContext, InstallContext, UninstallContext
 
-# see also common/JackConstants.h
-VERSION = '2.22'
-APPNAME = 'jack'
-JACK_API_VERSION = '0.1.0'
+VERSION = "2.22.1"
+APPNAME = 'jackdbus'
 
 # these variables are mandatory ('/' are converted automatically)
 top = '.'
@@ -155,14 +154,11 @@ def configure(conf):
 
     conf.load('autooptions')
 
-    conf.recurse('dbus')
-
     conf.env['LIB_PTHREAD'] = ['pthread']
     conf.env['LIB_DL'] = ['dl']
     conf.env['LIB_RT'] = ['rt']
     conf.env['LIB_M'] = ['m']
     conf.env['LIB_STDC++'] = ['stdc++']
-    conf.env['JACK_API_VERSION'] = JACK_API_VERSION
     conf.env['JACK_VERSION'] = VERSION
 
     conf.env['BINDIR'] = conf.env['PREFIX'] + '/bin'
@@ -194,10 +190,21 @@ def configure(conf):
         conf.env.append_unique('CFLAGS', '-g')
         conf.env.append_unique('LINKFLAGS', '-g')
 
+    conf.define('JACK_VERSION', conf.env['JACK_VERSION'])
     conf.write_config_header('config.h', remove=False)
 
+    conf.recurse('dbus')
+
     print()
-    print('LADI JACK ' + VERSION)
+    version_msg = APPNAME + "-" + VERSION
+    if os.access('version.h', os.R_OK):
+        data = open('version.h').read()
+        m = re.match(r'^#define GIT_VERSION "([^"]*)"$', data)
+        if m != None:
+            version_msg += " exported from " + m.group(1)
+    elif os.access('.git', os.R_OK):
+        version_msg += " git revision will be checked and eventually updated during build"
+    print(version_msg)
 
     conf.msg('Install prefix', conf.env['PREFIX'], color='CYAN')
     conf.msg('Library directory', conf.all_envs['']['LIBDIR'], color='CYAN')
@@ -234,8 +241,37 @@ def configure(conf):
         print(Logs.colors.NORMAL, end=' ')
     print()
 
+def git_ver(self):
+    bld = self.generator.bld
+    header = self.outputs[0].abspath()
+    if os.access('./version.h', os.R_OK):
+        header = os.path.join(os.getcwd(), out, "version.h")
+        shutil.copy('./version.h', header)
+        data = open(header).read()
+        m = re.match(r'^#define GIT_VERSION "([^"]*)"$', data)
+        if m != None:
+            self.ver = m.group(1)
+            Logs.pprint('BLUE', "tarball from git revision " + self.ver)
+        else:
+            self.ver = "tarball"
+        return
+
+    if bld.srcnode.find_node('.git'):
+        self.ver = bld.cmd_and_log("LANG= git rev-parse HEAD", quiet=Context.BOTH).splitlines()[0]
+        if bld.cmd_and_log("LANG= git diff-index --name-only HEAD", quiet=Context.BOTH).splitlines():
+            self.ver += "-dirty"
+
+        Logs.pprint('BLUE', "git revision " + self.ver)
+    else:
+        self.ver = "unknown"
+
+    fi = open(header, 'w')
+    fi.write('#define GIT_VERSION "%s"\n' % self.ver)
+    fi.close()
 
 def build(bld):
+    bld(rule=git_ver, target='version.h', update_outputs=True, always=True, ext_out=['.h'])
+
     # process subfolders from here
 
     if bld.env['IS_LINUX'] or bld.env['IS_FREEBSD']: