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-rwxr-xr-xbin/unicorn40
-rw-r--r--lib/unicorn.rb38
-rwxr-xr-xt/t0002-config-conflict.sh49
3 files changed, 92 insertions, 35 deletions
diff --git a/bin/unicorn b/bin/unicorn
index 5af021d..0da0869 100755
--- a/bin/unicorn
+++ b/bin/unicorn
@@ -108,49 +108,19 @@ opts = OptionParser.new("", 24, '  ') do |opts|
   opts.parse! ARGV
 end
 
-config = ARGV[0] || "config.ru"
-abort "configuration file #{config} not found" unless File.exist?(config)
+ru = ARGV[0] || "config.ru"
+abort "configuration file #{ru} not found" unless File.exist?(ru)
 
-if config =~ /\.ru$/
+if ru =~ /\.ru$/
   # parse embedded command-line options in config.ru comments
-  if File.open(config, "rb") { |fp| fp.sysread(fp.stat.size) } =~ /^#\\(.*)/
+  if File.open(ru, "rb") { |fp| fp.sysread(fp.stat.size) } =~ /^#\\(.*)/
     opts.parse! $1.split(/\s+/)
   end
 end
 
 require 'pp' if $DEBUG
 
-app = lambda do ||
-  # require Rack as late as possible in case $LOAD_PATH is modified
-  # in config.ru or command-line
-  inner_app = case config
-  when /\.ru$/
-    raw = File.open(config, "rb") { |fp| fp.sysread(fp.stat.size) }
-    raw.sub!(/^__END__\n.*/, '')
-    eval("Rack::Builder.new {(#{raw}\n)}.to_app", nil, config)
-  else
-    require config
-    Object.const_get(File.basename(config, '.rb').capitalize)
-  end
-  pp({ :inner_app => inner_app }) if $DEBUG
-  case ENV["RACK_ENV"]
-  when "development"
-    Rack::Builder.new do
-      use Rack::CommonLogger, $stderr
-      use Rack::ShowExceptions
-      use Rack::Lint
-      run inner_app
-    end.to_app
-  when "deployment"
-    Rack::Builder.new do
-      use Rack::CommonLogger, $stderr
-      run inner_app
-    end.to_app
-  else
-    inner_app
-  end
-end
-
+app = Unicorn.builder(ru)
 listeners << "#{host}:#{port}" if set_listener
 
 if $DEBUG
diff --git a/lib/unicorn.rb b/lib/unicorn.rb
index 6dec03e..d3e9c3d 100644
--- a/lib/unicorn.rb
+++ b/lib/unicorn.rb
@@ -27,6 +27,44 @@ module Unicorn
     def run(app, options = {})
       HttpServer.new(app, options).start.join
     end
+
+    # This returns a lambda to pass in as the app, this does not "build" the
+    # app (which we defer based on the outcome of "preload_app" in the
+    # Unicorn config).  The returned lambda will be called when it is
+    # time to build the app.
+    def builder(ru)
+      lambda do ||
+        inner_app = case ru
+        when /\.ru$/
+          raw = File.open(ru, "rb") { |fp| fp.sysread(fp.stat.size) }
+          raw.sub!(/^__END__\n.*/, '')
+          eval("Rack::Builder.new {(#{raw}\n)}.to_app", TOPLEVEL_BINDING, ru)
+        else
+          require ru
+          Object.const_get(File.basename(ru, '.rb').capitalize)
+        end
+
+        pp({ :inner_app => inner_app }) if $DEBUG
+
+        # return value, matches rackup defaults based on env
+        case ENV["RACK_ENV"]
+        when "development"
+          Rack::Builder.new do
+            use Rack::CommonLogger, $stderr
+            use Rack::ShowExceptions
+            use Rack::Lint
+            run inner_app
+          end.to_app
+        when "deployment"
+          Rack::Builder.new do
+            use Rack::CommonLogger, $stderr
+            run inner_app
+          end.to_app
+        else
+          inner_app
+        end
+      end
+    end
   end
 
   # This is the process manager of Unicorn. This manages worker
diff --git a/t/t0002-config-conflict.sh b/t/t0002-config-conflict.sh
new file mode 100755
index 0000000..d7b2181
--- /dev/null
+++ b/t/t0002-config-conflict.sh
@@ -0,0 +1,49 @@
+#!/bin/sh
+. ./test-lib.sh
+t_plan 6 "config variables conflict with preload_app"
+
+t_begin "setup and start" && {
+        unicorn_setup
+        rtmpfiles ru rutmp
+
+        cat > $ru <<\EOF
+use Rack::ContentLength
+use Rack::ContentType, "text/plain"
+config = ru = { "hello" => "world" }
+run lambda { |env| [ 200, {}, [ ru.inspect << "\n" ] ] }
+EOF
+        echo 'preload_app true' >> $unicorn_config
+        unicorn -D -c $unicorn_config $ru
+        unicorn_wait_start
+}
+
+t_begin "hit with curl" && {
+        out=$(curl -sSf http://$listen/)
+        test x"$out" = x'{"hello"=>"world"}'
+}
+
+t_begin "modify rackup file" && {
+        sed -e 's/world/WORLD/' < $ru > $rutmp
+        mv $rutmp $ru
+}
+
+t_begin "reload signal succeeds" && {
+        kill -HUP $unicorn_pid
+        while ! egrep '(done|error) reloading' < $r_err >/dev/null
+        do
+                sleep 1
+        done
+
+        grep 'done reloading' $r_err >/dev/null
+}
+
+t_begin "hit with curl" && {
+        out=$(curl -sSf http://$listen/)
+        test x"$out" = x'{"hello"=>"WORLD"}'
+}
+
+t_begin "killing succeeds" && {
+        kill $unicorn_pid
+}
+
+t_done