[Scons-users] How to tell if a node is an explicit command-line argument?

[William Blevins]

Bill,

Long story short, I was investigating making a new debug option.  The
option would perform print env.Dump() for a node's builder environment, but
I wanted to print on for explicit targets.

Here is a working patch delta, but my check seems a bit sketchy.

diff -r e6d4edfedcb4 src/engine/SCons/Node/__init__.py
--- a/src/engine/SCons/Node/__init__.py    Mon Jun 29 07:04:53 2015 -0400
+++ b/src/engine/SCons/Node/__init__.py    Mon Jun 29 10:54:02 2015 -0400
@@ -1141,6 +1141,12 @@
         the command interpreter literally."""
         return 1

+    def generate_dump(self):
+        env = self.get_build_env()
+        if env:
+            return env.Dump()
+        return None
+
     def render_include_tree(self):
         """
         Return a text representation, suitable for displaying to the
diff -r e6d4edfedcb4 src/engine/SCons/Script/Main.py
--- a/src/engine/SCons/Script/Main.py    Mon Jun 29 07:04:53 2015 -0400
+++ b/src/engine/SCons/Script/Main.py    Mon Jun 29 10:54:02 2015 -0400
@@ -300,6 +300,13 @@
                 if tree:
                     print
                     print tree
+
+        if self.options.debug_dump:
+            t = self.targets[0]
+            if t.get_path() in SCons.Script.COMMAND_LINE_TARGETS:
+                print 'Environment dump for node: ' + str(t)
+                print t.generate_dump()
+
         SCons.Taskmaster.OutOfDateTask.postprocess(self)

     def make_ready(self):
@@ -653,6 +660,7 @@
     if "findlibs" in debug_values:
         SCons.Scanner.Prog.print_find_libs = "findlibs"
     options.debug_includes = ("includes" in debug_values)
+    options.debug_dump = ("dump" in debug_values)
     print_memoizer = ("memoizer" in debug_values)
     if "memory" in debug_values:
         memory_stats.enable(sys.stdout)
diff -r e6d4edfedcb4 src/engine/SCons/Script/SConsOptions.py
--- a/src/engine/SCons/Script/SConsOptions.py    Mon Jun 29 07:04:53 2015
-0400
+++ b/src/engine/SCons/Script/SConsOptions.py    Mon Jun 29 10:54:02 2015
-0400
@@ -673,7 +673,7 @@
         "tree"          : '; please use --tree=all instead',
     }

-    debug_options = ["count", "duplicate", "explain", "findlibs",
+    debug_options = ["count", "duplicate", "dump", "explain", "findlibs",
                      "includes", "memoizer", "memory", "objects",
                      "pdb", "prepare", "presub", "stacktrace",
                      "time"]


V/R,
William

On Sat, Jul 25, 2015 at 4:00 PM, William Blevins <wblevins001 at gmail.com>
wrote:

> SCons.Node has a function set_explicit, but after reading the function
> description, I don't think that is what this does?
>
> On Sat, Jul 25, 2015 at 3:56 PM, Bill Deegan <bill at baddogconsulting.com>
> wrote:
>
>> William,
>>
>>
>> On Sat, Jul 25, 2015 at 3:53 PM, William Blevins <wblevins001 at gmail.com>
>> wrote:
>>
>>>
>>>
>>> On Sat, Jul 25, 2015 at 3:52 PM, William Blevins <wblevins001 at gmail.com>
>>> wrote:
>>>
>>>> Yes, but here is an example in case:
>>>>
>>>> File "a.c" exists
>>>> File "b.c" exists
>>>>
>>>> FS node representing "a.c" is node_a and representing "b.c" is node_b
>>>>
>>>> If I run "scons" or "scons a.o", then node_b.is_explicit_target (or
>>>> some other function name) returns False.
>>>> If I run "scons b.o" or "scons a.o b.o", then node_b.is_explicit_target
>>>> return True for both cases, but node_b.is_explicit_target return True only
>>>> for the second case.
>>>>
>>>>
>>> Copy-pasta error fixed below:
>>> If I run "scons b.o" or "scons a.o b.o", then node_b.is_explicit_target
>>> return True for both cases, but node_a.is_explicit_target return True only
>>> for the second case.
>>>
>>
>> Isn't this what you'd expect?
>> I guess I'm missing where this doesn't answer your original question?
>> Also you can get the list of  command line arguments raw..
>>
>> -Bill
>>
>>
>>>
>>>
>>>
>>>> V/R,
>>>> William
>>>>
>>>> On Sat, Jul 25, 2015 at 3:32 PM, Bill Deegan <bill at baddogconsulting.com
>>>> > wrote:
>>>>
>>>>> So you mean if scons was run as: scons a/b/c/d.exe ?
>>>>>
>>>>> On Sat, Jul 25, 2015 at 2:13 PM, William Blevins <
>>>>> wblevins001 at gmail.com> wrote:
>>>>>
>>>>>> Is there an easy way to determine if a Node was specified explicitly
>>>>>> as a command-line argument?
>>>>>>
>>>>>> V/R,
>>>>>> William
>>>>>>
>>>>>> _______________________________________________
>>>>>> Scons-users mailing list
>>>>>> Scons-users at scons.org
>>>>>> https://pairlist4.pair.net/mailman/listinfo/scons-users
>>>>>>
>>>>>>
>>>>>
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>>>>>
>>>>
>>>
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>>
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>
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