Massimiliano Culpo e3af8ed454 Added a sub-command to show if packages are relocatable (#9199) ... * Added the `spack buildcache preview` sub-command This is similar to `spack spec -I` but highlights which nodes in a DAG are relocatable and which are not. spec.tree has been generalized a little to accept a status function, instead of always showing the install status The current implementation works only for ELF, and needs to be generalized to other platforms. * Added a test to check if an executable is relocatable or not This test requires a few commands to be present in the environment. Currently it will run only under python 3.7 (which uses Xenial instead of Trusty). * Added tests for the 'buildcache preview' command. * Fixed codebase after rebase * Fixed the list of apt addons for Python 3.7 in travis.yaml * Only check ELF executables and shared libraries. Skip checking virtual or external packages. (#229) * Fixed flake8 issues * Add handling for macOS mach binaries (#231)		2019-02-28 15:36:47 -06:00
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spack	Added a sub-command to show if packages are relocatable (#9199)	2019-02-28 15:36:47 -06:00