[Mesa-dev] [PATCH] meson: Add script to use VERSION file for getting version

[Dylan Baker]

Meson has up until this point set it's version in the root meson.build
script. While there are other build systems them creates "one more
thing" to duplicate between meson and every other build system, this
script is a simple "read, strip, print" sort of deal to allow meson to
read the VERSION file.

I chose to implement this in python since python is portable, and to
keep the meson.build script clean. This is also complicated by the fact
that the project() call *must* be the first non-comment,non-blank in the
toplevel meson.build script.

Signed-off-by: Dylan Baker <dylanx.c.baker at intel.com>
---
 meson.build                  |  2 +-
 scripts/meson_get_version.py | 35 +++++++++++++++++++++++++++++++++++
 2 files changed, 36 insertions(+), 1 deletion(-)
 create mode 100644 scripts/meson_get_version.py

diff --git a/meson.build b/meson.build
index 6ad8c8bbf4b..3f77380f7df 100644
--- a/meson.build
+++ b/meson.build
@@ -21,7 +21,7 @@
 project(
   'mesa',
   ['c', 'cpp'],
-  version : '17.3.0-devel',
+  version : run_command(find_program('scripts/meson_get_version.py')).stdout(),
   license : 'MIT',
   meson_version : '>= 0.42',
   default_options : ['c_std=c99', 'cpp_std=c++11']
diff --git a/scripts/meson_get_version.py b/scripts/meson_get_version.py
new file mode 100644
index 00000000000..a221e26f250
--- /dev/null
+++ b/scripts/meson_get_version.py
@@ -0,0 +1,35 @@
+#!/usr/bin/env python
+# encoding=utf-8
+# Copyright © 2017 Intel Corporation
+
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+from __future__ import print_function
+import os
+
+
+def main():
+    filename = os.path.join(os.environ['MESON_SOURCE_ROOT'], 'VERSION')
+    with open(filename) as f:
+        version = f.read().strip()
+    print(version, end='')
+
+
+if __name__ == '__main__':
+    main()
-- 
2.14.3