From db478fb7b2d8047403b71208af73b400bcf7a3e2 Mon Sep 17 00:00:00 2001
From: Uladzislau Shablinski <vladshablinsky@gmail.com>
Date: Sun, 2 Oct 2016 12:18:07 +0300
Subject: [PATCH] list: fix exit code for --verbose and --pinned

`brew list --verbose <formulae>` lists only those kegs that
are installed and exits with 0 if all <formulae> installed.
If one or more formulae from <formulae> are not installed, the
command lists only installed versions and exits with 1.

`brew --pinned formula` exits with 1 if formula is not pinned.

Fixes #1172
---
 Library/Homebrew/cmd/list.rb | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Library/Homebrew/cmd/list.rb b/Library/Homebrew/cmd/list.rb
index d2eebb5f1b..43a03829e0 100644
--- a/Library/Homebrew/cmd/list.rb
+++ b/Library/Homebrew/cmd/list.rb
@@ -106,7 +106,11 @@ module Homebrew
     names = if ARGV.named.empty?
       Formula.racks
     else
-      ARGV.named.map { |n| HOMEBREW_CELLAR+n }.select(&:exist?)
+      racks = ARGV.named.map { |n| HOMEBREW_CELLAR+n }
+      racks.select do |rack|
+        Homebrew.failed = true unless rack.exist?
+        rack.exist?
+      end
     end
     if ARGV.include? "--pinned"
       pinned_versions = {}