From ab30e05396a0704e975f3539071d677e38e011ec Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lo=C3=AFc=20Hoguin?= <essen@ninenines.eu>
Date: Tue, 29 Sep 2015 18:49:00 +0200
Subject: Add a test for SKIP_DEPS

Also don't delete DEPS_DIR if SKIP_DEPS is set.
---
 core/deps.mk      |  2 ++
 test/core_deps.mk | 39 ++++++++++++++++++++++++++++++++++++++-
 2 files changed, 40 insertions(+), 1 deletion(-)

diff --git a/core/deps.mk b/core/deps.mk
index 8bc7b44..18ae0f8 100644
--- a/core/deps.mk
+++ b/core/deps.mk
@@ -605,10 +605,12 @@ distclean-apps:
 	done
 endif
 
+ifndef SKIP_DEPS
 distclean:: distclean-deps
 
 distclean-deps:
 	$(gen_verbose) rm -rf $(DEPS_DIR)
+endif
 
 # External plugins.
 
diff --git a/test/core_deps.mk b/test/core_deps.mk
index 5b928f1..21dd5c6 100644
--- a/test/core_deps.mk
+++ b/test/core_deps.mk
@@ -1,6 +1,6 @@
 # Core: Packages and dependencies.
 
-CORE_DEPS_CASES = apps apps-conflict apps-deep-conflict apps-dir apps-new-app apps-new-lib apps-new-tpl apps-only build-c-8cc build-c-imagejs build-erl build-js dep-commit dir doc fetch-cp fetch-custom fetch-fail-bad fetch-fail-unknown fetch-git fetch-hex fetch-hg fetch-legacy fetch-svn ignore no-autopatch no-autopatch-erlang-mk no-autopatch-rebar order-first order-top otp pkg rel search shell test
+CORE_DEPS_CASES = apps apps-conflict apps-deep-conflict apps-dir apps-new-app apps-new-lib apps-new-tpl apps-only build-c-8cc build-c-imagejs build-erl build-js dep-commit dir doc fetch-cp fetch-custom fetch-fail-bad fetch-fail-unknown fetch-git fetch-hex fetch-hg fetch-legacy fetch-svn ignore no-autopatch no-autopatch-erlang-mk no-autopatch-rebar order-first order-top otp pkg rel search shell skip test
 CORE_DEPS_TARGETS = $(addprefix core-deps-,$(CORE_DEPS_CASES))
 CORE_DEPS_CLEAN_TARGETS = $(addprefix clean-,$(CORE_DEPS_TARGETS))
 
@@ -1137,6 +1137,43 @@ core-deps-shell: build clean-core-deps-shell
 		false = lists:member(tddreloader, Deps), \
 		halt()"
 
+core-deps-skip: build clean-core-deps-skip
+
+	$i "Bootstrap a new OTP library named $(APP)"
+	$t mkdir $(APP)/
+	$t cp ../erlang.mk $(APP)/
+	$t $(MAKE) -C $(APP) -f erlang.mk bootstrap-lib $v
+
+	$i "Add Cowboy to the list of dependencies"
+	$t perl -ni.bak -e 'print;if ($$.==1) {print "DEPS = cowboy\n"}' $(APP)/Makefile
+
+ifdef LEGACY
+	$i "Add Cowboy to the applications key in the .app.src file"
+	$t perl -ni.bak -e 'print;if ($$.==7) {print "\t\tcowboy,\n"}' $(APP)/src/$(APP).app.src
+endif
+
+	$i "Build the application with SKIP_DEPS=1"
+	$t $(MAKE) -C $(APP) SKIP_DEPS=1 $v
+
+	$i "Check that no dependencies were fetched"
+	$t test ! -e $(APP)/deps
+
+	$i "Build the application"
+	$t $(MAKE) -C $(APP) $v
+
+	$i "Check that all dependencies were fetched"
+	$t test -d $(APP)/deps/cowlib
+	$t test -d $(APP)/deps/cowboy
+	$t test -d $(APP)/deps/ranch
+
+	$i "Distclean with SKIP_DEPS=1"
+	$t $(MAKE) -C $(APP) distclean SKIP_DEPS=1 $v
+
+	$i "Check that no dependencies were removed"
+	$t test -d $(APP)/deps/cowlib
+	$t test -d $(APP)/deps/cowboy
+	$t test -d $(APP)/deps/ranch
+
 core-deps-test: build clean-core-deps-test
 
 	$i "Bootstrap a new OTP library named $(APP)"
-- 
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