From 9d840758a8d195e52e8b7d08cd9c15f6b8259724 Mon Sep 17 00:00:00 2001
From: Maximilian Bosch <maximilian@mbosch.me>
Date: Fri, 4 Feb 2022 22:43:16 +0100
Subject: [PATCH] completions: pipe stderr to /dev/null

This fixes weird issues where e.g.

    nix build -L .#<tab>

deletes the current line from the prompt.
---
 misc/bash/completion.sh | 2 +-
 misc/zsh/completion.zsh | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/misc/bash/completion.sh b/misc/bash/completion.sh
index 8fc224792..045053dee 100644
--- a/misc/bash/completion.sh
+++ b/misc/bash/completion.sh
@@ -15,7 +15,7 @@ function _complete_nix {
         else
             COMPREPLY+=("$completion")
         fi
-    done < <(NIX_GET_COMPLETIONS=$cword "${words[@]/#\~/$HOME}")
+    done < <(NIX_GET_COMPLETIONS=$cword "${words[@]/#\~/$HOME}" 2>/dev/null)
     __ltrim_colon_completions "$cur"
 }
 
diff --git a/misc/zsh/completion.zsh b/misc/zsh/completion.zsh
index a902e37dc..e702c721e 100644
--- a/misc/zsh/completion.zsh
+++ b/misc/zsh/completion.zsh
@@ -4,7 +4,7 @@ function _nix() {
   local ifs_bk="$IFS"
   local input=("${(Q)words[@]}")
   IFS=$'\n'
-  local res=($(NIX_GET_COMPLETIONS=$((CURRENT - 1)) "$input[@]"))
+  local res=($(NIX_GET_COMPLETIONS=$((CURRENT - 1)) "$input[@]" 2>/dev/null))
   IFS="$ifs_bk"
   local tpe="${${res[1]}%%>	*}"
   local -a suggestions