Basil Mathew
2018-02-02 04:41:59 UTC
Hello all,
I am fairly new to SCons and to Python; hence, please excuse if this is a
silly question.
I am using SCons version "v2.4.0.rel_2.4.0:3365:9259ea1c13d7". I was
playing around with some very basic topics in SCons to get myself
acquainted with SCons when I came across the strange scenario that SCons
does not execute the builder when I rename one of the input file to a
target without changing its content. I was really surprised since I was
expecting the SCons to recognize that the input files list has
changed(though not its content) and execute the builder. Please see the
content of the SConstruct file that I have been using.
import os
import sys
import SCons
import subprocess
DefaultEnvironment(tools = [])
input_files_list = []
process_option_list = []
process_exec_cmd_line = ''
target_name = ''
def command_process_executor_builder(target, source, env):
target_file_path_name = target[0].get_abspath()
print "############### Executing Process"
return None
def build():
global input_files_list, process_option_list, process_exec_cmd_line,
target_name
env = DefaultEnvironment(tools = [])
a = Action(command_process_executor_builder, varlist=['my_arg',
'PROCESS_EXEC_CMD_LINE', 'PROCESS_OPTION_LIST'])
proc_exec_bldr = Builder(action = a)
env['my_arg'] = 'default-value'
env['PROCESS_EXEC_CMD_LINE'] = process_exec_cmd_line
env['PROCESS_OPTION_LIST'] = process_option_list
env.Append(BUILDERS = {'Foo' : proc_exec_bldr})
result1 = env.Foo("__proc_done.txt", [
"src/work/dds/codeSymbols.grl",
"src/work/dds/gtypes_dds_1.grl",
"src/work/dds/iopt_memmap.grl",
"src/work/dds/@ecu_add_test.grl"
]
)
build()
I was wondering if this is the default behaviour of SCons when it comes to
renaming input files or if there is some mistake with the way I am using
SCons. If this is indeed the default behaviour of SCons, can some one let
me know the reason behind this.
Thank you
Basil Mathew
I am fairly new to SCons and to Python; hence, please excuse if this is a
silly question.
I am using SCons version "v2.4.0.rel_2.4.0:3365:9259ea1c13d7". I was
playing around with some very basic topics in SCons to get myself
acquainted with SCons when I came across the strange scenario that SCons
does not execute the builder when I rename one of the input file to a
target without changing its content. I was really surprised since I was
expecting the SCons to recognize that the input files list has
changed(though not its content) and execute the builder. Please see the
content of the SConstruct file that I have been using.
import os
import sys
import SCons
import subprocess
DefaultEnvironment(tools = [])
input_files_list = []
process_option_list = []
process_exec_cmd_line = ''
target_name = ''
def command_process_executor_builder(target, source, env):
target_file_path_name = target[0].get_abspath()
print "############### Executing Process"
return None
def build():
global input_files_list, process_option_list, process_exec_cmd_line,
target_name
env = DefaultEnvironment(tools = [])
a = Action(command_process_executor_builder, varlist=['my_arg',
'PROCESS_EXEC_CMD_LINE', 'PROCESS_OPTION_LIST'])
proc_exec_bldr = Builder(action = a)
env['my_arg'] = 'default-value'
env['PROCESS_EXEC_CMD_LINE'] = process_exec_cmd_line
env['PROCESS_OPTION_LIST'] = process_option_list
env.Append(BUILDERS = {'Foo' : proc_exec_bldr})
result1 = env.Foo("__proc_done.txt", [
"src/work/dds/codeSymbols.grl",
"src/work/dds/gtypes_dds_1.grl",
"src/work/dds/iopt_memmap.grl",
"src/work/dds/@ecu_add_test.grl"
]
)
build()
I was wondering if this is the default behaviour of SCons when it comes to
renaming input files or if there is some mistake with the way I am using
SCons. If this is indeed the default behaviour of SCons, can some one let
me know the reason behind this.
Thank you
Basil Mathew