* 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>
Specify PIPE as stdin for subprocess.Pipe for gvim.exe.
Also fixes some ruby implementation.
* windows doesn't have pgrep.
* windows can't handle SIGTERM.
* windows can't handle /dev/null
* redraw always
