init

2018-06-12 21:01:05 +02:00
commit 6bfb8402f0
201 changed files with 53127 additions and 0 deletions
--- a/scons-configure-cache.py
+++ b/scons-configure-cache.py
@@ -0,0 +1,141 @@
+#! /usr/bin/env python
+#
+# SCons - a Software Constructor
+#
+# Copyright (c) 2001 - 2017 The SCons Foundation
+#
+# 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
+
+__revision__ = "src/script/scons-configure-cache.py rel_3.0.0:4395:8972f6a2f699 2017/09/18 12:59:24 bdbaddog"
+
+__version__ = "3.0.0"
+
+__build__ = "rel_3.0.0:4395:8972f6a2f699"
+
+__buildsys__ = "ubuntu-16"
+
+__date__ = "2017/09/18 12:59:24"
+
+__developer__ = "bdbaddog"
+
+import argparse
+import glob
+import json
+import os
+
+def rearrange_cache_entries(current_prefix_len, new_prefix_len):
+    print('Changing prefix length from', current_prefix_len, 'to', new_prefix_len)
+    dirs = set()
+    old_dirs = set()
+    for file in glob.iglob(os.path.join('*', '*')):
+        name = os.path.basename(file)
+        dir = name[:current_prefix_len].upper()
+        if dir not in old_dirs:
+            print('Migrating', dir)
+            old_dirs.add(dir)
+        dir = name[:new_prefix_len].upper()
+        if dir not in dirs:
+            os.mkdir(dir)
+            dirs.add(dir)
+        os.rename(file, os.path.join(dir, name))
+
+    # Now delete the original directories
+    for dir in old_dirs:
+        os.rmdir(dir)
+
+# This dictionary should have one entry per entry in the cache config
+# Each entry should have the following:
+#   implicit - (optional) This is to allow adding a new config entry and also
+#              changing the behaviour of the system at the same time. This
+#              indicates the value the config entry would have had if it had been
+#              specified.
+#   default - The value the config entry should have if it wasn't previously
+#             specified
+#   command-line - parameters to pass to ArgumentParser.add_argument
+#   converter - (optional) Function to call if it's necessary to do some work
+#               if this configuration entry changes
+config_entries = {
+    'prefix_len' : { 
+        'implicit' : 1, 
+        'default' : 2 ,
+        'command-line' : {
+            'help' : 'Length of cache file name used as subdirectory prefix',
+            'metavar' : '<number>',
+            'type' : int
+            },
+        'converter' : rearrange_cache_entries
+    }
+}
+parser = argparse.ArgumentParser(
+    description = 'Modify the configuration of an scons cache directory',
+    epilog = '''
+             Unless you specify an option, it will not be changed (if it is
+             already set in the cache config), or changed to an appropriate
+             default (it it is not set).
+             '''
+    )
+
+parser.add_argument('cache-dir', help='Path to scons cache directory')
+for param in config_entries:
+    parser.add_argument('--' + param.replace('_', '-'), 
+                        **config_entries[param]['command-line'])
+parser.add_argument('--version', action='version', version='%(prog)s 1.0')
+
+# Get the command line as a dict without any of the unspecified entries.
+args = dict([x for x in vars(parser.parse_args()).items() if x[1]])
+
+# It seems somewhat strange to me, but positional arguments don't get the -
+# in the name changed to _, whereas optional arguments do...
+os.chdir(args['cache-dir'])
+del args['cache-dir']
+
+if not os.path.exists('config'):
+    # Validate the only files in the directory are directories 0-9, a-f
+    expected = [ '{:X}'.format(x) for x in range(0, 16) ]
+    if not set(os.listdir('.')).issubset(expected):
+        raise RuntimeError("This doesn't look like a version 1 cache directory")
+    config = dict()
+else:
+    with open('config') as conf:
+        config = json.load(conf)
+
+# Find any keys that aren't currently set but should be
+for key in config_entries:
+    if key not in config:
+        if 'implicit' in config_entries[key]:
+            config[key] = config_entries[key]['implicit']
+        else:
+            config[key] = config_entries[key]['default']
+        if key not in args:
+            args[key] = config_entries[key]['default']
+
+#Now we go through each entry in args to see if it changes an existing config
+#setting.
+for key in args:
+    if args[key] != config[key]:        
+        if 'converter' in config_entries[key]:
+            config_entries[key]['converter'](config[key], args[key])
+        config[key] = args[key]
+
+# and write the updated config file
+with open('config', 'w') as conf:
+    json.dump(config, conf)