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system([...]): Set v:shell_error=-1 if not executable.

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Do _not_ set v:shell_error on parameter validation error.

system([...]) does not invoke a shell, so this change is somewhat
questionable. But `:help v:shell_error` is sufficiently vague to allow
-1 in this case.
This commit is contained in:
Rui Abreu Ferreira 2016-09-30 15:29:50 +01:00 committed by Justin M. Keyes
parent 4178e865d5
commit 1e079fa987
2 changed files with 11 additions and 1 deletions
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6
src/nvim/eval.c
View File

@ -16994,8 +16994,12 @@ static void get_system_output_as_rettv(typval_T *argvars, typval_T *rettv,
}
// get shell command to execute
char **argv = tv_to_argv(&argvars[0], NULL, NULL);
bool executable = true;
char **argv = tv_to_argv(&argvars[0], NULL, &executable);
if (!argv) {
if (!executable) {
set_vim_var_nr(VV_SHELL_ERROR, (long)-1);
}
xfree(input);
return; // Already did emsg.
}

6
test/functional/eval/system_spec.lua
View File

@ -33,9 +33,15 @@ describe('system()', function()
local printargs_path = helpers.nvim_dir..'/printargs-test'
.. (helpers.os_name() == 'windows' and '.exe' or '')
it('sets v:shell_error if cmd[0] is not executable', function()
call('system', { 'this-should-not-exist' })
eq(-1, eval('v:shell_error'))
end)
it('quotes arguments correctly #5280', function()
local out = call('system',
{ printargs_path, [[1]], [[2 "3]], [[4 ' 5]], [[6 ' 7']] })
eq(0, eval('v:shell_error'))
eq([[arg1=1;arg2=2 "3;arg3=4 ' 5;arg4=6 ' 7';]], out)