From 319a3c5fbe599d7845b73d4bca82129f0563a5aa Mon Sep 17 00:00:00 2001
From: TSUYUSATO Kitsune <make.just.on@gmail.com>
Date: Sat, 28 Apr 2018 21:12:35 +0900
Subject: [PATCH] docs command: don't show error on console when not a git
 repository  (#3700)

* Show warning message if cannot detect GitHub repository

* Remove warning message not to detect GitHub/GitLab repo
---
 src/compiler/crystal/tools/doc/generator.cr | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/compiler/crystal/tools/doc/generator.cr b/src/compiler/crystal/tools/doc/generator.cr
index ae94e6a2a2d9..1b0ce4363b54 100644
--- a/src/compiler/crystal/tools/doc/generator.cr
+++ b/src/compiler/crystal/tools/doc/generator.cr
@@ -300,6 +300,10 @@ class Crystal::Doc::Generator
   end
 
   def compute_repository
+    # check whether inside git work-tree
+    `git rev-parse --is-inside-work-tree >/dev/null 2>&1`
+    return unless $?.success?
+
     remotes = `git remote -v`
     return unless $?.success?