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system(), jobstart(): raise error on non-executable #11234

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* tv_to_argv: error when cmd is not executable
  Callers always assume that emsg was emitted:
  - https://github.com/neovim/neovim/blob/57fbf288/src/nvim/eval.c#L12509
  - https://github.com/neovim/neovim/blob/57fbf288/src/nvim/eval.c#L17923
  - https://github.com/neovim/neovim/blob/57fbf288/src/nvim/eval.c#L18202
* test/functional/provider: display reason from missing_provider
* provider#node#Detect: skip / handle non-existing node executable
This commit is contained in:
Daniel Hahler
2019-12-24 07:53:56 +01:00
committed by Justin M. Keyes
parent 53fe877a97
commit b3686b1597
8 changed files with 28 additions and 16 deletions
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3
runtime/autoload/provider/node.vim
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@@ -51,6 +51,9 @@ function! provider#node#Detect() abort
if exists('g:node_host_prog')
return expand(g:node_host_prog)
endif
if !executable('node')
return ''
endif
if !s:is_minimum_version(v:null, 6, 0)
return ''
endif