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authorDavid Robillard <d@drobilla.net>2019-04-21 20:04:13 +0200
committerDavid Robillard <d@drobilla.net>2019-04-21 22:45:04 +0200
commit5c679f18dd57c88c1c4a37cd15559510108b359a (patch)
tree29da84cc58755ead3e66a7f2e4ba412688ae12ad /waflib/extras/run_py_script.py
parentada3add535204d69b5f29a41fe03ed71330d4cfd (diff)
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Switch to using a submodule for autowaf
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diff --git a/waflib b/waflib
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+Subproject 2314e236ca6e7d94a26c3c17091da0f25f5867f
diff --git a/waflib/extras/run_py_script.py b/waflib/extras/run_py_script.py
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-#!/usr/bin/env python
-# encoding: utf-8
-# Hans-Martin von Gaudecker, 2012
-
-"""
-Run a Python script in the directory specified by **ctx.bldnode**.
-
-Select a Python version by specifying the **version** keyword for
-the task generator instance as integer 2 or 3. Default is 3.
-
-If the build environment has an attribute "PROJECT_PATHS" with
-a key "PROJECT_ROOT", its value will be appended to the PYTHONPATH.
-Same a string passed to the optional **add_to_pythonpath**
-keyword (appended after the PROJECT_ROOT).
-
-Usage::
-
- ctx(features='run_py_script', version=3,
- source='some_script.py',
- target=['some_table.tex', 'some_figure.eps'],
- deps='some_data.csv',
- add_to_pythonpath='src/some/library')
-"""
-
-import os, re
-from waflib import Task, TaskGen, Logs
-
-
-def configure(conf):
- """TODO: Might need to be updated for Windows once
- "PEP 397":http://www.python.org/dev/peps/pep-0397/ is settled.
- """
- conf.find_program('python', var='PY2CMD', mandatory=False)
- conf.find_program('python3', var='PY3CMD', mandatory=False)
- if not conf.env.PY2CMD and not conf.env.PY3CMD:
- conf.fatal("No Python interpreter found!")
-
-class run_py_2_script(Task.Task):
- """Run a Python 2 script."""
- run_str = '${PY2CMD} ${SRC[0].abspath()}'
- shell=True
-
-class run_py_3_script(Task.Task):
- """Run a Python 3 script."""
- run_str = '${PY3CMD} ${SRC[0].abspath()}'
- shell=True
-
-@TaskGen.feature('run_py_script')
-@TaskGen.before_method('process_source')
-def apply_run_py_script(tg):
- """Task generator for running either Python 2 or Python 3 on a single
- script.
-
- Attributes:
-
- * source -- A **single** source node or string. (required)
- * target -- A single target or list of targets (nodes or strings)
- * deps -- A single dependency or list of dependencies (nodes or strings)
- * add_to_pythonpath -- A string that will be appended to the PYTHONPATH environment variable
-
- If the build environment has an attribute "PROJECT_PATHS" with
- a key "PROJECT_ROOT", its value will be appended to the PYTHONPATH.
- """
-
- # Set the Python version to use, default to 3.
- v = getattr(tg, 'version', 3)
- if v not in (2, 3):
- raise ValueError("Specify the 'version' attribute for run_py_script task generator as integer 2 or 3.\n Got: %s" %v)
-
- # Convert sources and targets to nodes
- src_node = tg.path.find_resource(tg.source)
- tgt_nodes = [tg.path.find_or_declare(t) for t in tg.to_list(tg.target)]
-
- # Create the task.
- tsk = tg.create_task('run_py_%d_script' %v, src=src_node, tgt=tgt_nodes)
-
- # custom execution environment
- # TODO use a list and os.sep.join(lst) at the end instead of concatenating strings
- tsk.env.env = dict(os.environ)
- tsk.env.env['PYTHONPATH'] = tsk.env.env.get('PYTHONPATH', '')
- project_paths = getattr(tsk.env, 'PROJECT_PATHS', None)
- if project_paths and 'PROJECT_ROOT' in project_paths:
- tsk.env.env['PYTHONPATH'] += os.pathsep + project_paths['PROJECT_ROOT'].abspath()
- if getattr(tg, 'add_to_pythonpath', None):
- tsk.env.env['PYTHONPATH'] += os.pathsep + tg.add_to_pythonpath
-
- # Clean up the PYTHONPATH -- replace double occurrences of path separator
- tsk.env.env['PYTHONPATH'] = re.sub(os.pathsep + '+', os.pathsep, tsk.env.env['PYTHONPATH'])
-
- # Clean up the PYTHONPATH -- doesn't like starting with path separator
- if tsk.env.env['PYTHONPATH'].startswith(os.pathsep):
- tsk.env.env['PYTHONPATH'] = tsk.env.env['PYTHONPATH'][1:]
-
- # dependencies (if the attribute 'deps' changes, trigger a recompilation)
- for x in tg.to_list(getattr(tg, 'deps', [])):
- node = tg.path.find_resource(x)
- if not node:
- tg.bld.fatal('Could not find dependency %r for running %r' % (x, src_node.abspath()))
- tsk.dep_nodes.append(node)
- Logs.debug('deps: found dependencies %r for running %r', tsk.dep_nodes, src_node.abspath())
-
- # Bypass the execution of process_source by setting the source to an empty list
- tg.source = []
-