Add new Options flavors. (Hartmut Goebel)

1 files changed, 85 insertions, 0 deletions

diff --git a/src/engine/SCons/Options/PathOption.py b/src/engine/SCons/Options/PathOption.py
new file mode 100644
index 0000000..cea4750
--- /dev/null
+++ b/src/engine/SCons/Options/PathOption.py
@@ -0,0 +1,85 @@
+"""engine.SCons.Options.PathOption
+
+This file defines an option type for SCons implementing 'package
+activation'.
+
+To be used whenever a 'package' may be enabled/disabled and the
+package path may be specified.
+
+Usage example:
+
+  Examples:
+      x11=no   (disables X11 support)
+      x11=yes  (will search for the package installation dir)
+      x11=/usr/local/X11 (will check this path for existance)
+
+  To replace autoconf's --with-xxx=yyy 
+
+  opts = Options()
+
+  opts = Options()
+  opts.Add(PathOption('qtdir',
+                      'where the root of Qt is installed',
+                      qtdir))
+  opts.Add(PathOption('qt_includes',
+                      'where the Qt includes are installed',
+                      '$qtdir/includes'))
+  opts.Add(PathOption('qt_libraries',
+                      'where the Qt library is installed',
+                      '$qtdir/lib'))
+
+"""
+
+#
+# __COPYRIGHT__
+#
+# 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.
+#
+
+__revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"
+
+__all__ = ('PathOption',)
+
+import os
+
+import SCons.Errors
+
+def _validator(key, val, env):
+    """
+    """
+    # todo: write validator, check for path
+    if not os.path.exists(val):
+        raise SCons.Errors.UserError(
+            'Path does not exist for option %s: %s' % (key, val))
+
+
+def PathOption(key, help, default):
+    # NB: searchfunc is currenty undocumented and unsupported
+    """
+    The input parameters describe a 'path list' option, thus they
+    are returned with the correct converter and validator appended. The
+    result is usable for input to opts.Add() .
+
+    A 'package list' option may either be 'all', 'none' or a list of
+    package names (seperated by space).
+    """
+    return (key, '%s ( /path/to/%s )' % (help, key), default,
+            _validator, None)
+