Enhanced --debug=explain output. Breaks out sources, depends, and implicit components to dependency list. Updated test. TODO: better formatting

1 files changed, 10 insertions, 4 deletions

diff --git a/src/engine/SCons/Node/__init__.py b/src/engine/SCons/Node/__init__.py
index 131953b..ca6e6ee 100644
--- a/src/engine/SCons/Node/__init__.py
+++ b/src/engine/SCons/Node/__init__.py
@@ -1666,9 +1666,16 @@ class Node(object, with_metaclass(NoSlotsPyPy)):
                     lines.append("`%s' changed\n" % stringify(k))
 
         if len(lines) == 0 and old_bkids != new_bkids:
-            lines.append("the dependency order changed:\n" +
-                         "%sold: %s\n" % (' '*15, list(map(stringify, old_bkids))) +
-                         "%snew: %s\n" % (' '*15, list(map(stringify, new_bkids))))
+            lines.append("the dependency order changed:\n")
+            lines.append("->Sources\n")
+            for (o,n) in map(None, old.bsources, new.bsources):
+                lines.append("Old:%s\tNew:%s\n"%(o,n))
+            lines.append("->Depends\n")
+            for (o,n) in map(None, old.bdepends, new.bdepends):
+                lines.append("Old:%s\tNew:%s\n"%(o,n))
+            lines.append("->Implicit\n")
+            for (o,n) in map(None, old.bimplicit, new.bimplicit):
+                lines.append("Old:%s\tNew:%s\n"%(o,n))
 
         if len(lines) == 0:
             def fmt_with_title(title, strlines):
@@ -1711,7 +1718,6 @@ class Walker(object):
     This is depth-first, children are visited before the parent.
     The Walker object can be initialized with any node, and
     returns the next node on the descent with each get_next() call.
-    'kids_func' is an optional function that will be called to
     get the children of a node instead of calling 'children'.
     'cycle_func' is an optional function that will be called
     when a cycle is detected.