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, 114 insertions, 0 deletions

diff --git a/src/python/SConscript b/src/python/SConscript
index 9ac7a5b44..b213243ff 100644
--- a/src/python/SConscript
+++ b/src/python/SConscript
@@ -60,6 +60,7 @@ PySource('m5.util', 'm5/util/multidict.py')
 PySource('m5.util', 'm5/util/orderdict.py')
 PySource('m5.util', 'm5/util/smartdict.py')
 PySource('m5.util', 'm5/util/sorteddict.py')
+PySource('m5.util', 'm5/util/terminal.py')
 
 SwigSource('m5.internal', 'swig/core.i')
 SwigSource('m5.internal', 'swig/debug.i')
diff --git a/src/python/m5/util/terminal.py b/src/python/m5/util/terminal.py
new file mode 100644
index 000000000..9038c1f54
--- /dev/null
+++ b/src/python/m5/util/terminal.py
@@ -0,0 +1,113 @@
+# Copyright (c) 2011 Advanced Micro Devices, Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met: redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer;
+# redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution;
+# neither the name of the copyright holders nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+# Author: Steve Reinhardt
+
+import sys
+
+# Intended usage example:
+#
+# if force_colors:
+#    from m5.util.terminal import termcap
+# elif no_colors:
+#    from m5.util.terminal import no_termcap as termcap
+# else:
+#    from m5.util.terminal import tty_termcap as termcap
+# print termcap.Blue + "This could be blue!" + termcap.Normal
+
+# ANSI color names in index order
+color_names = "Black Red Green Yellow Blue Magenta Cyan".split()
+
+# Character attribute capabilities.  Note that not all terminals
+# support all of these capabilities, or support them
+# differently/meaningfully.  For example:
+#
+# - In PuTTY (with the default settings), Dim has no effect, Standout
+#   is the same as Reverse, and Blink does not blink but switches to a
+#   gray background.
+#
+# Please feel free to add information about other terminals here.
+#
+capability_map = {
+         'Bold': 'bold',
+          'Dim': 'dim',
+        'Blink': 'blink',
+    'Underline': 'smul',
+      'Reverse': 'rev',
+     'Standout': 'smso',
+       'Normal': 'sgr0'
+}
+
+capability_names = capability_map.keys()
+
+def null_cap_string(s, *args):
+    return ''
+
+try:
+    import curses
+    curses.setupterm()
+    def cap_string(s, *args):
+        cap = curses.tigetstr(s)
+        if cap:
+            return curses.tparm(cap, *args)
+        else:
+            return ''
+except:
+    cap_string = null_cap_string
+
+class ColorStrings(object):
+    def __init__(self, cap_string):
+        for i, c in enumerate(color_names):
+            setattr(self, c, cap_string('setaf', i))
+        for name, cap in capability_map.iteritems():
+            setattr(self, name, cap_string(cap))
+
+termcap = ColorStrings(cap_string)
+no_termcap = ColorStrings(null_cap_string)
+
+if sys.stdout.isatty():
+    tty_termcap = termcap
+else:
+    tty_termcap = no_termcap
+
+def test_termcap(obj):
+    for c_name in color_names:
+        c_str = getattr(obj, c_name)
+        print c_str + c_name + obj.Normal
+        for attr_name in capability_names:
+            if attr_name == 'Normal':
+                continue
+            attr_str = getattr(obj, attr_name)
+            print attr_str + c_str + attr_name + " " + c_name + obj.Normal
+        print obj.Bold + obj.Underline + \
+              c_name + "Bold Underline " + c + obj.Normal
+
+if __name__ == '__main__':
+    print "=== termcap enabled ==="
+    test_termcap(termcap)
+    print termcap.Normal
+    print "=== termcap disabled ==="
+    test_termcap(no_termcap)