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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
src/nvim/eval.c
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@@ -12536,6 +12536,9 @@ static char **tv_to_argv(typval_T *cmd_tv, const char **cmd, bool *executable)
char *exe_resolved = NULL;
if (!arg0 || !os_can_exe(arg0, &exe_resolved, true)) {
if (arg0 && executable) {
char buf[IOSIZE];
snprintf(buf, sizeof(buf), "'%s' is not executable", arg0);
EMSG3(_(e_invargNval), "cmd", buf);
*executable = false;
}
return NULL;