[Scons-users] Pass custom arguments to a builder

[Gary Oberbrunner]

On Mon, Jan 20, 2014 at 3:12 AM, delbert dev <delbertum at gmail.com> wrote:

> def my_action(source, target, env):

>     with zipfile.ZipFile(env['src_file'] , "r") as z:

>         z.extractall(env['out_folder'])

>     print "Extracted : " + env['src_file'] +  " to: " + env['out_folder']

>

> # First "envocation"

> my_cmd_builder = Builder(action=my_action, src_file=gtestOutputFile,

> out_folder=outdir)

> env.Append( BUILDERS = {'MyCmd' : my_cmd_builder } )

> extract_gtest_cmd = env.MyCmd(["Extract gtest"], os.popen('which

> bash').read().strip())


If I understand correctly, the only reason you create two builders is
to change src_file.  You don't need to do that.  All builder calls
allow you to specify "environment overrides" as keyword args, so:
extract_gtest_cmd = env.MyCmd(["Extract gtest"], os.popen('which
bash').read().strip(), src_file=gtestOutputFile)
extract_gmock_cmd = env.MyCmd(["Extract gmock"], os.popen('which
bash').read().strip(), src_file=gmockOutputFile)

Also, and this is important, action functions like your my_action take
target, source, env; you have source, target, env.

-- 
Gary