it's well within expectations that they do not exist at the time of
configuration (especially when shadow building).
additionally, keeping the validation info (macros and environment)
up-to-date would require a notification infrastructure which is just not
worth the effort.
Existing Directory checks for whether the directory exists, which
Directory does not. Also changes all existing PathChoosers from
Directory to ExistingDirectory as that does not change behaviour.
* Move the environment model code to utils and export it
* rename the environmenteditmodel files to environmentwidget
(which is the class they actually contain)
Reviewed-by: dt
do not inject SOURCEDIR and BUILDDIR into the environment of
build steps and run configurations any more.
instead, all custom executable paths, argument lists and working
directories now support the %{sourceDir} and %{buildDir} macros.
this approach is more elegant and more scalable.
get away from argument stringlists. instead, use native shell command
lines which support quoting/splitting, environment variable expansion
and redirections with well-understood semantics.
Task-number: QTCREATORBUG-542
Task-number: QTCREATORBUG-1564
