X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/593ed179715e007763a027919b38b69b8bb7d59d..91dc5f1d7f5ad9eb2640f6089e2d0476cbf87c8e:/sdk/cli/bin/arv-run-pipeline-instance?ds=sidebyside

diff --git a/sdk/cli/bin/arv-run-pipeline-instance b/sdk/cli/bin/arv-run-pipeline-instance
index 70e2f42ede..bcb11d1d70 100755
--- a/sdk/cli/bin/arv-run-pipeline-instance
+++ b/sdk/cli/bin/arv-run-pipeline-instance
@@ -17,7 +17,7 @@ begin
   require 'trollop'
   require 'google/api_client'
 rescue LoadError => l
-  puts $:
+  $stderr.puts $:
   abort <<-EOS
 #{$0}: fatal: #{l.message}
 Some runtime dependencies may be missing.
@@ -132,7 +132,7 @@ if $options[:instance]
     abort "#{$0}: syntax error: --instance cannot be combined with --template or --submit."
   end
 elsif not $options[:template]
-  puts "error: you must supply a --template or --instance."
+  $stderr.puts "error: you must supply a --template or --instance."
   p.educate
   abort
 end
@@ -364,22 +364,25 @@ class WhRunPipelineInstance
     @components.each do |componentname, component|
       component[:script_parameters].each do |parametername, parameter|
         parameter = { :value => parameter } unless parameter.is_a? Hash
-        value =
-          (params["#{componentname}::#{parametername}"] ||
-           parameter[:value] ||
-           (parameter[:output_of].nil? &&
-            (params[parametername.to_s] ||
-             parameter[:default])) ||
-           nil)
-        if value.nil? and
-            ![false,'false',0,'0'].index parameter[:required]
-          if parameter[:output_of]
-            if not @components[parameter[:output_of].intern]
-              errors << [componentname, parametername, "output_of refers to nonexistent component '#{parameter[:output_of]}'"]
-            end
-            next
+        if params.has_key?("#{componentname}::#{parametername}")
+          value = params["#{componentname}::#{parametername}"]
+        elsif parameter.has_key?(:value)
+          value = parameter[:value]
+        elsif parameter.has_key?(:output_of)
+          if !@components[parameter[:output_of].intern]
+            errors << [componentname, parametername, "output_of refers to nonexistent component '#{parameter[:output_of]}'"]
+          else
+            # value will be filled in later when the upstream
+            # component's output becomes known
           end
+          next
+        elsif params.has_key?(parametername.to_s)
+          value = params[parametername.to_s]
+        elsif parameter.has_key?(:default)
+          value = parameter[:default]
+        else
           errors << [componentname, parametername, "required parameter is missing"]
+          next
         end
         debuglog "parameter #{componentname}::#{parametername} == #{value}"