From e32e2cdcbeb6c344abab389750e40316d9659f43 Mon Sep 17 00:00:00 2001
From: Xiao-Yong <jinxiaoyong@gmail.com>
Date: Thu, 21 Dec 2017 17:43:59 -0600
Subject: [PATCH] Initialize nimbleDir option from the environment variable
 NIMBLE_DIR (#417)

* Initialize options from the environment variable NIMBLE_DIR

* Tests for the existence of project.nim file

Matches nim's command line handling of 'nim c project'
The error message also states the files being tested.

* Fix deprecated warnings (#420)

* Fix deprecated warning

* Fix deprecation warnings

* Initialize options from the environment variable NIMBLE_DIR

* inform user about using NIMBLE_DIR env
---
 src/nimblepkg/options.nim | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/nimblepkg/options.nim b/src/nimblepkg/options.nim
index 4af9f0c..b220b42 100644
--- a/src/nimblepkg/options.nim
+++ b/src/nimblepkg/options.nim
@@ -319,7 +319,7 @@ proc parseFlag*(flag, val: string, result: var Options, kind = cmdLongOption) =
 proc initOptions*(): Options =
   result.action.typ = actionNil
   result.pkgInfoCache = newTable[string, PackageInfo]()
-  result.nimbleDir = ""
+  result.nimbleDir = getEnv("NIMBLE_DIR")
   result.verbosity = HighPriority
 
 proc parseMisc(options: var Options) =
@@ -366,6 +366,11 @@ proc parseCmdLine*(): Options =
   if result.action.typ == actionNil and not result.showVersion:
     result.showHelp = true
 
+  # Inform user that we use their environment variables.
+  if result.getNimbleDir == getEnv("NIMBLE_DIR"):
+    display("Info:", "Using the 'NIMBLE_DIR' environment variable.",
+            priority = HighPriority)
+
 proc getProxy*(options: Options): Proxy =
   ## Returns ``nil`` if no proxy is specified.
   var url = ""