From b3b530edae1195b363c831c4bc623bd486cdb660 Mon Sep 17 00:00:00 2001
From: Ahmed W <oneofone@gmail.com>
Date: Sun, 1 Oct 2023 09:33:35 -0500
Subject: [PATCH] feat(ignore_stdout): option to ignore stdout (#4)

---
 doc/HELPERS.md                            |  2 ++
 lua/null-ls/helpers/generator_factory.lua | 10 +++++++++-
 lua/null-ls/helpers/make_builtin.lua      |  1 +
 3 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/doc/HELPERS.md b/doc/HELPERS.md
index c7e4e56f..8ccfbe83 100644
--- a/doc/HELPERS.md
+++ b/doc/HELPERS.md
@@ -254,6 +254,8 @@ with the following changes:
 
 - `ignore_stderr`: set to `true` by default.
 
+- `ignore_stdout`: set to `false` by default.
+
 - `on_output`: will always return an edit that will replace the current buffer's
   content with formatter output. As a result, other options that depend on
   `on_output`, such as `format`, will not have an effect.
diff --git a/lua/null-ls/helpers/generator_factory.lua b/lua/null-ls/helpers/generator_factory.lua
index 8c81cd46..9d16d8d6 100644
--- a/lua/null-ls/helpers/generator_factory.lua
+++ b/lua/null-ls/helpers/generator_factory.lua
@@ -101,13 +101,14 @@ local line_output_wrapper = function(params, done, on_output)
 end
 
 return function(opts)
-    local command, args, env, on_output, format, ignore_stderr, from_stderr, to_stdin, check_exit_code, timeout, to_temp_file, from_temp_file, use_cache, runtime_condition, cwd, dynamic_command, multiple_files, temp_dir, prepend_extra_args =
+    local command, args, env, on_output, format, ignore_stderr, ignore_stdout, from_stderr, to_stdin, check_exit_code, timeout, to_temp_file, from_temp_file, use_cache, runtime_condition, cwd, dynamic_command, multiple_files, temp_dir, prepend_extra_args =
         opts.command,
         opts.args,
         opts.env,
         opts.on_output,
         opts.format,
         opts.ignore_stderr,
+        opts.ignore_stdout,
         opts.from_stderr,
         opts.to_stdin,
         opts.check_exit_code,
@@ -148,6 +149,7 @@ return function(opts)
             },
             from_stderr = { from_stderr, "boolean", true },
             ignore_stderr = { ignore_stderr, "boolean", true },
+            ignore_stdout = { ignore_stdout, "boolean", true },
             to_stdin = { to_stdin, "boolean", true },
             check_exit_code = { check_exit_code, "function", true },
             timeout = { timeout, "number", true },
@@ -205,6 +207,12 @@ return function(opts)
                 log:trace("error output: " .. (error_output or "nil"))
                 log:trace("output: " .. (output or "nil"))
 
+                if ignore_stdout then
+                    if error_output then
+                        log:trace("ignoring stdout due to generator options")
+                    end
+                    output = nil
+                end
                 if ignore_stderr then
                     if error_output then
                         log:trace("ignoring stderr due to generator options")
diff --git a/lua/null-ls/helpers/make_builtin.lua b/lua/null-ls/helpers/make_builtin.lua
index ce4fe061..1eb046c8 100644
--- a/lua/null-ls/helpers/make_builtin.lua
+++ b/lua/null-ls/helpers/make_builtin.lua
@@ -36,6 +36,7 @@ local function make_builtin(opts)
         diagnostics_postprocess = opts.diagnostics_postprocess,
         dynamic_command = opts.dynamic_command,
         ignore_stderr = opts.ignore_stderr,
+        ignore_stdout = opts.ignore_stdout,
         runtime_condition = opts.runtime_condition,
         timeout = opts.timeout,
         to_temp_file = opts.to_temp_file,