Fix idempotency issues in build_essential on the mac #10647
Merged
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2 issues this solves:
On some systems the Command Line Tools aren't showing up in the install history plist we're parsing. This means we attempt to install the tools each time chef runs, which takes a LONG time even on a top of the line mac. It was suggested in mac admins slack to just use xcode-select -p which lists the command line tools path or exits 2 if not installed.
When the :upgrade action is used we were parsing out the software update list twice for no reason, which made it take even longer.
Signed-off-by: Tim Smith tsmith@chef.io