Create snapshots for buildsystem directories during configure time.
This class will be extended in follow up commits to snapshot
all values in the cmState.
8dc3a67c cmMakefile: Out-of-line the directory methods.
0f3c8cfa cmMakefile: Use method abstraction to access directories.
b288a997 cmMakefile: Rename SetStart* directory API to SetCurrent*.
932d53bc cmMakefile: Remove redundant method duplication.
32b8f03a cmMakefile: Port users of GetStart* methods to new names.
54d6a918 cmMakefile: Rename GetCurrent{Output,Binary}Directory.
55d80d0a cmMakefile: Rename GetCurrent{,Source}Directory.
b23cf06f cmake: Remove redundant start directories.
fcf246ac cmMakefile: Populate Home directories on initialize.
8878bea7 cmake: Initialize Home directories on cmake for find-package mode.
044dc815 Use the Home directories from the cmake class where intended.
d67e8f24 cmake: Fix directory used to find the cache
1ea085d1 cmMakefile: Initialize dir definitions early.
f034bb2f Remove redundant calls to MakeStartDirectoriesCurrent.
3a68c323 cmMakefile: Fix wrong parameter names.
They are maintained as containing the same content as the 'home'
directories, but they are never read from.
Fix some comments and help strings which confused the two by
name. They actually mean what is called CMAKE_SOURCE_DIR in
cmake code.
Call the Internal method with equivalent parameters, passing a null first
argument.
A duplicate path computation exists inside the external_in condition now,
but that is harmless at this point.
Because all external callers of this method pass a null first
parameter, this change has no effect for them.
This also makes it obvious that the CMAKE_PARENT_LIST_FILE is set to
the name of the file being read itself for CMakeLists.txt files,
which may not make any sense.
Global properties are already global in scope, so remove the
overload for specifying it and port users of the API.
The call from cmMakefile::GetProperty can be simplified because
the scope is only used during chaining, and there is no further
chaining after processing global properties.
At this point, it is an interface to the cache. It will be extended
to be a universal interface for access to and manipulation of
configuration-time data (defintions, properties on targets,
directories, source files etc).
This will allow porting all command implementations away
from the cmMakefile and cmTarget classes, and result in something
more-purely related to configuration-time processing of cmake
commands. That should serve at least the following goals:
* Split the CMake implementation more definitively into three
stages: Configuration, computation and generation, and be able to
implement each optimally for memory access patterns etc.
* Make better IDE integration possible by making more configuration
data available.
* Make it possiblte to use a smaller library than CMakeLib.a in
cpack and ctest, resulting in smaller executables.
* Make it possible to run the configure step multiple times in
the same CMake run (#14539).
Manage its lifetime in the cmake class, and add a convenience accessor
to cmMakefile.
Stephen Kelly
Brad King