t/lib-httpd.sh: skip tests if NO_CURL is defined

If we built git without curl, we can't actually test against
an http server. In fact, all of the test scripts which
include lib-httpd.sh already perform this check, with one
exception: t5540. For those scripts, this is a noop, and for
t5540, this is a bugfix (it used to fail when built with
NO_CURL, though it could go unnoticed if you had a stale
git-remote-https in your build directory).
Noticed-by: NJunio C Hamano <junio@pobox.com>
Signed-off-by: NJeff King <peff@peff.net>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

t/lib-httpd.sh

@@ -30,6 +30,12 @@
 # Copyright (c) 2008 Clemens Buchacher <drizzd@aon.at>
 #
 
+if test -n "$NO_CURL"
+then
+	skip_all='skipping test, git built without http support'
+	test_done
+fi
+
 test_tristate GIT_TEST_HTTPD
 if test "$GIT_TEST_HTTPD" = false
 then

t/t5539-fetch-http-shallow.sh

@@ -3,12 +3,6 @@
 test_description='fetch/clone from a shallow clone over http'
 
 . ./test-lib.sh
-
-if test -n "$NO_CURL"; then
-	skip_all='skipping test, git built without http support'
-	test_done
-fi
-
 . "$TEST_DIRECTORY"/lib-httpd.sh
 start_httpd
 

t/t5541-http-push-smart.sh

@@ -6,11 +6,6 @@
 test_description='test smart pushing over http via http-backend'
 . ./test-lib.sh
 
-if test -n "$NO_CURL"; then
-	skip_all='skipping test, git built without http support'
-	test_done
-fi
-
 ROOT_PATH="$PWD"
 . "$TEST_DIRECTORY"/lib-httpd.sh
 . "$TEST_DIRECTORY"/lib-terminal.sh

t/t5542-push-http-shallow.sh

@@ -3,12 +3,6 @@
 test_description='push from/to a shallow clone over http'
 
 . ./test-lib.sh
-
-if test -n "$NO_CURL"; then
-	say 'skipping test, git built without http support'
-	test_done
-fi
-
 . "$TEST_DIRECTORY"/lib-httpd.sh
 start_httpd
 

t/t5550-http-fetch-dumb.sh

@@ -2,12 +2,6 @@
 
 test_description='test dumb fetching over http via static file'
 . ./test-lib.sh
-
-if test -n "$NO_CURL"; then
-	skip_all='skipping test, git built without http support'
-	test_done
-fi
-
 . "$TEST_DIRECTORY"/lib-httpd.sh
 start_httpd
 

t/t5551-http-fetch-smart.sh

@@ -2,12 +2,6 @@
 
 test_description='test smart fetching over http via http-backend'
 . ./test-lib.sh
-
-if test -n "$NO_CURL"; then
-	skip_all='skipping test, git built without http support'
-	test_done
-fi
-
 . "$TEST_DIRECTORY"/lib-httpd.sh
 start_httpd
 

t/t5561-http-backend.sh

@@ -2,12 +2,6 @@
 
 test_description='test git-http-backend'
 . ./test-lib.sh
-
-if test -n "$NO_CURL"; then
-	skip_all='skipping test, git built without http support'
-	test_done
-fi
-
 . "$TEST_DIRECTORY"/lib-httpd.sh
 start_httpd