mattn b17f477585 Reduce the number of git processes for faster operation (#937) ...

* Make git operation faster

When using many plugins, vim-plug may spawn many git processes for them.

* get revision
* get branch
* get remote.origin.url

This is too heavy. especially on Windows. This change get revision, branch,
remote origin url directly from .git directory.

This idea is borrowed from @k-takata's commit for minpac.

Executing external programs is slow especially on Windows.
Read the information directly from .git directory.

* Copied from devel branch of minpac

* Avoid errors

* Show errors

* Use empty()

* Use empty string instead of v:null

* Check spec.branch is empty

* Use branch

* Fix branch and revision

* Remove l: and use s:trim

* Fix and simplify s:git_get_remote_origin_url

* Do not cut off commit hash for correctness

Co-authored-by: Junegunn Choi <junegunn.c@gmail.com>

2020-09-08 22:13:21 +09:00

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