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provider: make has('ruby') only return 1 if gem is installed (#7944)

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Marco Hinz 2018-02-01 13:14:29 +01:00 committed by GitHub
parent f8010ea3ec
commit 6710164c2c
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1 changed files with 12 additions and 1 deletions
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13
src/nvim/eval.c
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@ -1279,7 +1279,7 @@ varnumber_T call_func_retnr(char_u *func, int argc,
char *call_func_retstr(const char *const func, const int argc,
const char_u *const *const argv,
const bool safe)
FUNC_ATTR_NONNULL_ALL FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_MALLOC
FUNC_ATTR_NONNULL_ARG(1) FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_MALLOC
{
typval_T rettv;
// All arguments are passed as strings, no conversion to number.
@ -10733,6 +10733,17 @@ static void f_has(typval_T *argvars, typval_T *rettv, FunPtr fptr)
n = true;
}
if (STRICMP(name, "ruby") == 0 && n == true) {
char *rubyhost = call_func_retstr("provider#ruby#Detect", 0, NULL, true);
if (rubyhost) {
if (*rubyhost == NUL) {
// Invalid rubyhost executable. Gem is probably not installed.
n = false;
}
xfree(rubyhost);
}
}
rettv->vval.v_number = n;
}