CommandLine uses Paperclip.options[:swallow_stderr] as a default if no :swallow_stderr option is specified.

(cherry picked from commit 753b8b9fc2cb24c9006fe2e6f48d4fe57519eb7a)

Author: keithpitt

lib/paperclip/command_line.rb

@@ -8,7 +8,7 @@ def initialize(binary, params = "", options = {})
       @binary            = binary.dup
       @params            = params.dup
       @options           = options.dup
-      @swallow_stderr    = @options.delete(:swallow_stderr)
+      @swallow_stderr    = @options.has_key?(:swallow_stderr) ? @options.delete(:swallow_stderr) : Paperclip.options[:swallow_stderr]
       @expected_outcodes = @options.delete(:expected_outcodes)
       @expected_outcodes ||= [0]
     end

test/command_line_test.rb

@@ -7,21 +7,22 @@ def setup
   end
 
   should "take a command and parameters and produce a shell command for bash" do
-    cmd = Paperclip::CommandLine.new("convert", "a.jpg b.png")
+    cmd = Paperclip::CommandLine.new("convert", "a.jpg b.png", :swallow_stderr => false)
     assert_equal "convert a.jpg b.png", cmd.command
   end
 
   should "be able to set a path and produce commands with that path" do
     Paperclip::CommandLine.path = "/opt/bin"
-    cmd = Paperclip::CommandLine.new("convert", "a.jpg b.png")
+    cmd = Paperclip::CommandLine.new("convert", "a.jpg b.png", :swallow_stderr => false)
     assert_equal "/opt/bin/convert a.jpg b.png", cmd.command
   end
 
   should "be able to interpolate quoted variables into the parameters" do
     cmd = Paperclip::CommandLine.new("convert",
                                      ":one :{two}",
                                      :one => "a.jpg",
-                                     :two => "b.png")
+                                     :two => "b.png",
+                                     :swallow_stderr => false)
     assert_equal "convert 'a.jpg' 'b.png'", cmd.command
   end
 
@@ -30,15 +31,17 @@ def setup
     cmd = Paperclip::CommandLine.new("convert",
                                      ":one :{two}",
                                      :one => "a.jpg",
-                                     :two => "b.png")
+                                     :two => "b.png",
+                                     :swallow_stderr => false)
     assert_equal 'convert "a.jpg" "b.png"', cmd.command
   end
 
   should "be able to quote and interpolate dangerous variables" do
     cmd = Paperclip::CommandLine.new("convert",
                                      ":one :two",
                                      :one => "`rm -rf`.jpg",
-                                     :two => "ha'ha.png")
+                                     :two => "ha'ha.png",
+                                     :swallow_stderr => false)
     assert_equal "convert '`rm -rf`.jpg' 'ha'\\''ha.png'", cmd.command
   end
 
@@ -47,7 +50,8 @@ def setup
     cmd = Paperclip::CommandLine.new("convert",
                                      ":one :two",
                                      :one => "`rm -rf`.jpg",
-                                     :two => "ha'ha.png")
+                                     :two => "ha'ha.png",
+                                     :swallow_stderr => false)
     assert_equal %{convert "`rm -rf`.jpg" "ha'ha.png"}, cmd.command
   end
 
@@ -80,15 +84,15 @@ def setup
   end
 
   should "run the #command it's given and return the output" do
-    cmd = Paperclip::CommandLine.new("convert", "a.jpg b.png")
+    cmd = Paperclip::CommandLine.new("convert", "a.jpg b.png", :swallow_stderr => false)
     cmd.class.stubs(:"`").with("convert a.jpg b.png").returns(:correct_value)
     with_exitstatus_returning(0) do
       assert_equal :correct_value, cmd.run
     end
   end
 
   should "raise a PaperclipCommandLineError if the result code isn't expected" do
-    cmd = Paperclip::CommandLine.new("convert", "a.jpg b.png")
+    cmd = Paperclip::CommandLine.new("convert", "a.jpg b.png", :swallow_stderr => false)
     cmd.class.stubs(:"`").with("convert a.jpg b.png").returns(:correct_value)
     with_exitstatus_returning(1) do
       assert_raises(Paperclip::PaperclipCommandLineError) do
@@ -100,7 +104,8 @@ def setup
   should "not raise a PaperclipCommandLineError if the result code is expected" do
     cmd = Paperclip::CommandLine.new("convert",
                                      "a.jpg b.png",
-                                     :expected_outcodes => [0, 1])
+                                     :expected_outcodes => [0, 1],
+                                     :swallow_stderr => false)
     cmd.class.stubs(:"`").with("convert a.jpg b.png").returns(:correct_value)
     with_exitstatus_returning(1) do
       assert_nothing_raised do
@@ -110,7 +115,7 @@ def setup
   end
 
   should "log the command" do
-    cmd = Paperclip::CommandLine.new("convert", "a.jpg b.png")
+    cmd = Paperclip::CommandLine.new("convert", "a.jpg b.png", :swallow_stderr => false)
     cmd.class.stubs(:'`')
     Paperclip.expects(:log).with("convert a.jpg b.png")
     cmd.run