Buildbot: refactor all build slave code

* Move common code into buildbot_utils.py
* Remove legacy code from removed builders
* Split code into smaller functions

Differential Revision: https://developer.blender.org/D5642

build_files/buildbot/buildbot_utils.py

@@ -0,0 +1,92 @@
+# ##### BEGIN GPL LICENSE BLOCK #####
+#
+#  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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ##### END GPL LICENSE BLOCK #####
+
+# <pep8 compliant>
+
+import argparse
+import os
+import subprocess
+import sys
+
+class Builder:
+    def __init__(self, name, branch):
+        self.name = name
+        self.branch = branch
+
+        # Buildbot runs from build/ directory
+        self.blender_dir = os.path.abspath(os.path.join('..', 'blender.git'))
+        self.build_dir = os.path.abspath(os.path.join('..', 'build', name))
+        self.install_dir = os.path.abspath(os.path.join('..', 'install', name))
+        self.upload_dir = os.path.abspath(os.path.join('..', 'install'))
+
+        # Detect platform
+        if name.startswith('mac'):
+            self.platform = 'mac'
+            self.command_prefix =  []
+        elif name.startswith('linux'):
+            self.platform = 'linux'
+            self.command_prefix =  ['scl', 'enable', 'devtoolset-6', '--']
+        elif name.startswith('win'):
+            self.platform = 'win'
+            self.command_prefix =  []
+        else:
+            raise ValueError('Unkonw platform for builder ' + self.platform)
+
+        # Always 64 bit now
+        self.bits = 64
+
+def create_builder_from_arguments():
+    parser = argparse.ArgumentParser()
+    parser.add_argument('builder_name')
+    parser.add_argument('branch', default='master', nargs='?')
+    args = parser.parse_args()
+    return Builder(args.builder_name, args.branch)
+
+
+class VersionInfo:
+    def __init__(self, builder):
+        # Get version information
+        buildinfo_h = os.path.join(builder.build_dir, "source", "creator", "buildinfo.h")
+        blender_h = os.path.join(builder.blender_dir, "source", "blender", "blenkernel", "BKE_blender_version.h")
+
+        version_number = int(self._parse_header_file(blender_h, 'BLENDER_VERSION'))
+        self.version = "%d.%d" % (version_number // 100, version_number % 100)
+        self.hash = self._parse_header_file(buildinfo_h, 'BUILD_HASH')[1:-1]
+
+    def _parse_header_file(self, filename, define):
+        import re
+        regex = re.compile("^#\s*define\s+%s\s+(.*)" % define)
+        with open(filename, "r") as file:
+            for l in file:
+                match = regex.match(l)
+                if match:
+                    return match.group(1)
+        return None
+
+
+def call(cmd, env=None, exit_on_error=True):
+    print(' '.join(cmd))
+
+    # Flush to ensure correct order output on Windows.
+    sys.stdout.flush()
+    sys.stderr.flush()
+
+    retcode = subprocess.call(cmd, env=env)
+    if exit_on_error and retcode != 0:
+        sys.exit(retcode)
+    return retcode