diff options
Diffstat (limited to 'src/engine/SCons/Script/SConscript.py')
| -rw-r--r-- | src/engine/SCons/Script/SConscript.py | 28 |
1 files changed, 26 insertions, 2 deletions
diff --git a/src/engine/SCons/Script/SConscript.py b/src/engine/SCons/Script/SConscript.py index 5c4a2b3..a8aa732 100644 --- a/src/engine/SCons/Script/SConscript.py +++ b/src/engine/SCons/Script/SConscript.py @@ -47,6 +47,7 @@ import os import os.path import string import sys +import traceback def do_nothing(text): pass HelpFunction = do_nothing @@ -172,7 +173,7 @@ def SConscript(*ls, **kw): else: f = SCons.Node.FS.default_fs.File(str(fn)) if f.rexists(): - file = open(f.rstr(), "r") + _file_ = open(f.rstr(), "r") SCons.Node.FS.default_fs.chdir(f.dir) if sconscript_chdir: old_dir = os.getcwd() @@ -183,7 +184,13 @@ def SConscript(*ls, **kw): # be easily imported sys.path = [os.path.abspath(str(f.dir))] + sys.path - exec file in stack[-1].globals + # This is the magic line that actually reads up and + # executes the stuff in the SConscript file. We + # look for the "exec _file_ " from the beginning + # of this line to find the right stack frame (the + # next one) describing the SConscript file and line + # number that creates a node. + exec _file_ in stack[-1].globals else: sys.stderr.write("Ignoring missing SConscript '%s'\n" % f.path) @@ -202,6 +209,23 @@ def SConscript(*ls, **kw): return results[0] else: return tuple(results) + +def annotate(node): + """Annotate a node with the stack frame describing the + SConscript file and line number that created it.""" + stack = traceback.extract_stack() + last_text = "" + for frame in stack: + # If the script text of the previous frame begins with the + # magic "exec _file_ " string, then this frame describes the + # SConscript file and line number that caused this node to be + # created. Record the tuple and carry on. + if not last_text is None and last_text[:12] == "exec _file_ ": + node.creator = frame + return + last_text = frame[3] + +SCons.Node.Annotate = annotate def Default(*targets): global default_targets |