Peter Scheibel 284ae9d1cc Resources: use expanded archive name by default (#11688) ... For resources, it is desirable to use the expanded archive name of the resource as the name of the directory when adding it to the root staging area. #11528 established 'spack-src' as the universal directory where source files are placed, which also affected the behavior of resources managed with Stages. This adds a new property ('srcdir') to Stage to remember the name of the expanded source directory, and uses this as the default name when placing a resource directory in the root staging area. This also: * Ensures that downloaded sources are archived using the expanded archive name (otherwise Spack will not be able to determine the original directory name when using a cached archive). * Updates working_dir context manager to guarantee restoration of original working directory when an exception occurs * Adds a "temp_cwd" context manager which creates a temporary directory and sets it as the working directory		2019-06-20 11:09:31 -07:00
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spack	Resources: use expanded archive name by default (#11688)	2019-06-20 11:09:31 -07:00