From 21a368c1a8d22330a27381978984f1c7a33f4db6 Mon Sep 17 00:00:00 2001
From: Steven Knight <knight@baldmt.com>
Date: Fri, 21 Sep 2001 21:04:14 +0000
Subject: Have SCons report when something is up-to-date.

---
 etc/TestSCons.py    |  9 +++++++++
 src/script/scons.py | 27 +++++++++++++++++++++++++--
 test/Program.py     |  2 ++
 3 files changed, 36 insertions(+), 2 deletions(-)

diff --git a/etc/TestSCons.py b/etc/TestSCons.py
index b6f2c68..3141989 100644
--- a/etc/TestSCons.py
+++ b/etc/TestSCons.py
@@ -17,6 +17,7 @@ __revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"
 
 import os
 import os.path
+import string
 import TestCmd
 
 class TestFailed(Exception):
@@ -110,3 +111,11 @@ class TestSCons(TestCmd.TestCmd):
 	    print "Actual STDERR ============"
 	    print self.stderr()
 	    raise TestFailed
+
+    def up_to_date(self, arguments = None, **kw):
+	    kw['arguments'] = arguments
+	    s = ""
+	    for arg in string.split(arguments):
+		s = s + 'scons: "%s" is up to date.\n' % arg
+	    kw['stdout'] = s
+	    apply(self.run, [], kw)
diff --git a/src/script/scons.py b/src/script/scons.py
index a6a7f81..3b1a533 100644
--- a/src/script/scons.py
+++ b/src/script/scons.py
@@ -547,9 +547,32 @@ def main():
     if not targets:
 	targets = default_targets
 
+    # XXX Right now, this next block prints all "up to date" messages
+    # first, and then goes through and builds the other nodes:
+    #
+    #		$ scons aaa bbb ccc ddd
+    #		scons: "aaa" is up to date.
+    #		scons: "ccc" is up to date.
+    #		cc -o bbb bbb.c
+    #		cc -o ddd ddd.c
+    #
+    # When we get the real Task and Taskmaster classes, this should
+    # be changed to interact with the engine to deal with targets in
+    # the same order as specified:
+    #
+    #		$ scons aaa bbb ccc ddd
+    #		scons: "aaa" is up to date.
+    #		cc -o bbb bbb.c
+    #		scons: "ccc" is up to date.
+    #		cc -o ddd ddd.c
+    #
     calc = SCons.Sig.Calculator(SCons.Sig.MD5)
-    nodes = map(lambda x: SCons.Node.FS.default_fs.File(x), targets)
-    nodes = filter(lambda x, calc=calc: not calc.current(x), nodes)
+    nodes = []
+    for t in map(lambda x: SCons.Node.FS.default_fs.File(x), targets):
+	if calc.current(t):
+	    print 'scons: "%s" is up to date.' % t.path
+	else:
+	    nodes.append(t)
     
     taskmaster = Taskmaster(nodes)
 
diff --git a/test/Program.py b/test/Program.py
index 4189c46..0d760df 100644
--- a/test/Program.py
+++ b/test/Program.py
@@ -95,6 +95,7 @@ test.run(program = test.workpath('foo2'), stdout = "f2a.c\nf2b.c\nf2c.c\n")
 #XXXtest.run(program = test.workpath('foo3'), stdout = "f3a.c\nf3b.c\nf3c.c\n")
 
 #XXXtest.up_to_date(arguments = '.')
+test.up_to_date(arguments = 'foo1 foo2')
 
 test.write('f1.c', """
 int
@@ -122,6 +123,7 @@ test.run(program = test.workpath('foo2'), stdout = "f2a.c\nf2b.c\nf2c.c\n")
 #XXXtest.run(program = test.workpath('foo3'), stdout = "f3a.c\nf3b.c X\nf3c.c\n")
 
 #XXXtest.up_to_date(arguments = '.')
+test.up_to_date(arguments = 'foo1 foo2')
 
 # make sure the programs don't get rebuilt, because nothing changed:
 oldtime1 = os.path.getmtime(test.workpath('foo1'))
-- 
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