scons: show sources and targets when building, and colorize output.

I like the brevity of Ali's recent change, but the ambiguity of
sometimes showing the source and sometimes the target is a little
confusing.  This patch makes scons typically list all sources and
all targets for each action, with the common path prefix factored
out for brevity.  It's a little more verbose now but also more
informative.

Somehow Ali talked me into adding colors too, which is a whole
'nother story.

2 files changed, 1 insertions, 3 deletions

diff --git a/src/arch/SConscript b/src/arch/SConscript
index 620de4d1c..8c537182d 100644
--- a/src/arch/SConscript
+++ b/src/arch/SConscript
@@ -118,7 +118,7 @@ def isa_desc_action_func(target, source, env):
     cpu_models = [CpuModel.dict[cpu] for cpu in models]
     parser = isa_parser.ISAParser(target[0].dir.abspath, cpu_models)
     parser.parse_isa_desc(source[0].abspath)
-isa_desc_action = MakeAction(isa_desc_action_func, " [ISA DESC] $STRIP_SOURCE")
+isa_desc_action = MakeAction(isa_desc_action_func, Transform("ISA DESC", 1))
 
 # Also include the CheckerCPU as one of the models if it is being
 # enabled via command line.
diff --git a/src/arch/isa_parser.py b/src/arch/isa_parser.py
index 2a03f1968..00bfd33d2 100755
--- a/src/arch/isa_parser.py
+++ b/src/arch/isa_parser.py
@@ -1980,13 +1980,11 @@ StaticInstPtr
             old_contents = f.read()
             f.close()
             if contents != old_contents:
-                print 'Updating', file
                 os.remove(file) # in case it's write-protected
                 update = True
             else:
                 print 'File', file, 'is unchanged'
         else:
-            print ' [GENERATE]', file
             update = True
         if update:
             f = open(file, 'w')