Give access to git revision, and make test mode accessible.

6 files changed, 99 insertions, 0 deletions

diff --git a/.gitignore b/.gitignore
index dcffabcc..f9e62ff5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,3 +5,4 @@ build
 .lock*
 doc/html
 doc/latex
+src/git_commit.cc
diff --git a/src/git_commit.h b/src/git_commit.h
new file mode 100644
index 00000000..377fefbb
--- /dev/null
+++ b/src/git_commit.h
@@ -0,0 +1,6 @@
+
+namespace libdcp {
+
+extern char const * git_commit;
+	
+}
diff --git a/src/test_mode.cc b/src/test_mode.cc
new file mode 100644
index 00000000..2ff806fa
--- /dev/null
+++ b/src/test_mode.cc
@@ -0,0 +1,40 @@
+/*
+    Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+/** @file  src/test_mode.cc
+ *  @brief A method to enable test mode for libdcp.
+ */
+
+#include "KM_prng.h"
+#include "test_mode.h"
+#include "metadata.h"
+
+/** Calling this will seed the random number generator used to
+ *  generate UUIDs with a known value, and set the DCP issue
+ *  date to 1st January 2012 at midnight.  This means that
+ *  two runs of libdcp with the same inputs will produce
+ *  the same output.
+ */
+
+void
+libdcp::enable_test_mode ()
+{
+	Kumu::libdcp_test = true;
+	Metadata::instance()->issue_date = "2012-01-01T00:00:00+00:00";
+}
diff --git a/src/test_mode.h b/src/test_mode.h
new file mode 100644
index 00000000..b2e671d5
--- /dev/null
+++ b/src/test_mode.h
@@ -0,0 +1,29 @@
+/*
+    Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+/** @file  src/test_mode.h
+ *  @brief A method to enable test mode for libdcp.
+ */
+
+namespace libdcp
+{
+
+extern void enable_test_mode ();
+
+}
diff --git a/src/wscript b/src/wscript
index a57bb75b..b0e7f8be 100644
--- a/src/wscript
+++ b/src/wscript
@@ -12,6 +12,8 @@ def build(bld):
                  picture_asset.cc
                  util.cc
                  metadata.cc
+                 git_commit.cc
+                 test_mode.cc
                  """
 
     headers = """
diff --git a/wscript b/wscript
index c1538ceb..b70a8e2d 100644
--- a/wscript
+++ b/wscript
@@ -1,3 +1,5 @@
+import subprocess
+
 APPNAME = 'libdcp'
 VERSION = '0.03pre'
 
@@ -25,6 +27,8 @@ def configure(conf):
     conf.recurse('asdcplib')
 
 def build(bld):
+    create_stored_commit()
+
     bld(source = 'libdcp.pc.in',
         version = VERSION,
         includedir = '%s/include' % bld.env.PREFIX,
@@ -37,3 +41,20 @@ def build(bld):
 
 def dist(ctx):
     ctx.excl = 'TODO core *~ .git build .waf* .lock* doc/*~ src/*~ test/ref/*~'
+
+def create_stored_commit():
+    cmd = "LANG= git log --abbrev HEAD^..HEAD ."
+    output = subprocess.Popen(cmd, shell=True, stderr=subprocess.STDOUT, stdout=subprocess.PIPE).communicate()[0].splitlines()
+    o = output[0].decode('utf-8')
+    commit = o.replace ("commit ", "")[0:10]
+
+    try:
+        text =  '#include "git_commit.h"\n'
+        text += 'char const * libdcp::git_commit = \"%s\";\n' % commit
+        print('Writing git commit info to src/git_commit.cc')
+        o = open('src/git_commit.cc', 'w')
+        o.write(text)
+        o.close()
+    except IOError:
+        print('Could not open src/git_commit.cc for writing\n')
+        sys.exit(-1)