postgrest 0.3.0.1

Make postgrest test compatible with ruby 1.8

Remove call to Process.spawn, and replace with fork, exec, and
Process.detach.

Closes Homebrew/legacy-homebrew#46773.

Signed-off-by: Dominyk Tiller <dominyktiller@gmail.com>

Formula/postgrest.rb

@@ -6,8 +6,8 @@ class Postgrest < Formula
 
   desc "Serves a fully RESTful API from any existing PostgreSQL database."
   homepage "https://github.com/begriffs/postgrest"
-  url "https://github.com/begriffs/postgrest/archive/v0.2.12.0.tar.gz"
-  sha256 "9f7277720b947b06eb53ac0a54686eb437253d417695bc756220e703532a725a"
+  url "https://github.com/begriffs/postgrest/archive/v0.3.0.1.tar.gz"
+  sha256 "d2e92795a480e3a06d625905fb20bce30e5b86af6525cdec809e6a88200efab8"
 
   bottle do
     sha256 "fc88d2190b524fde39a99855c134e5b5ed68499b5533566c097dd495f9fcfa47" => :el_capitan
@@ -39,16 +39,21 @@ def install
 
     begin
       system "#{pg_bin}/createdb", "-w", "-p", pg_port, "-U", pg_user, test_db
-      pid = Process.spawn("postgrest -d #{test_db} -P #{pg_port} " \
-                          "-U #{pg_user} -a #{pg_user} -p 55560",
-                          :out => "/dev/null", :err => "/dev/null")
+      pid = fork do
+        exec "postgrest", "postgres://#{pg_user}@localhost:#{pg_port}/#{test_db}",
+          "-a", pg_user, "-p", "55560"
+      end
+      Process.detach(pid)
       sleep(5) # Wait for the server to start
       response = Net::HTTP.get(URI("http://localhost:55560"))
       assert_equal "[]", response
     ensure
-      Process.kill("TERM", pid) if pid
-      system "#{pg_bin}/pg_ctl", "-D", testpath/test_db, "stop",
-        "-s", "-m", "fast"
+      begin
+        Process.kill("TERM", pid) if pid
+      ensure
+        system "#{pg_bin}/pg_ctl", "-D", testpath/test_db, "stop",
+          "-s", "-m", "fast"
+      end
     end
   end
 end