[OE-core] [PATCH v3] externalsrc: Handle .git not being a directory

[Burton, Ross]

On 8 August 2017 at 02:46, Joshua Watt <jpewhacker at gmail.com> wrote:

> +        git_dir = subprocess.check_output(['git', 'rev-parse',
> '--absolute-git-dir'], cwd=s_dir).decode("utf-8").rstrip()
>

Doesn't work with my old git:

bb.data_smart.ExpansionError: Failure expanding variable
do_compile[file-checksums], expression was ${@srctree_hash_files(d)} which
triggered exception FileNotFoundError: [Errno 2] No such file or directory:
'--absolute-git-dir/index'
Summary: There was 1 ERROR message shown, returning a non-zero exit code.

$ git rev-parse --absolute-git-dir
--absolute-git-dir
$ git --version
git version 2.11.0

Ross
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