Add script to build docker images and build wxpython using them

docker/tasks.py

@@ -0,0 +1,82 @@
+#!/usr/bin/python
+#----------------------------------------------------------------------
+# Name:        tasks.py
+# Purpose:     Invoke-based set of commands for dealing with wxPython's
+#              Docker files, images and performing wxPython builds.
+#
+# Author:      Robin Dunn
+#
+# Created:     1-July-2019
+# Copyright:   (c) 2019 by Total Control Software
+# License:     wxWindows License
+#----------------------------------------------------------------------
+
+import os
+import glob
+from invoke import task, run
+
+
+HERE = os.path.abspath(os.path.dirname(__file__))
+
+
+@task(
+    help={'upload':'Upload the resulting images to docker hub',
+          'image':'Name of a docker image to build. May be specified more than once. Defaults to all.',
+          },
+    iterable=['image'],
+)
+def build_images(ctx, image, upload=False ):
+    """
+    Build the docker images.
+    """
+    if image == []:
+        image = _get_all_distros()
+
+    os.chdir(HERE)
+    dist=os.path.abspath('../dist')
+    for img_name in image:
+        # build it
+        ctx.run('docker build --no-cache '
+                '-f {name}/Dockerfile '
+                '-t wxpython/build:{name}  .'.format(name=img_name),
+                pty=True, echo=True)
+        # test it
+        ctx.run('docker run -it --rm -v {}:/dist '
+                'wxpython/build:{} hello.sh'.format(dist, img_name),
+                pty=True, echo=True)
+
+    if upload:
+        print('Do image upload here...')
+
+
+@task(
+    help={
+        'image':'Name of a docker image to use for building. May be specified more than once. Defaults to all.',
+        'port': 'One of gtk2, gtk3 or all. Defaults to all.',
+        'venv': 'The name of a Python virtual environment to use for the build, like Py27, Py36, etc. Defaults to all.'
+    },
+    iterable=['image'],
+)
+def build_wxpython(ctx, image, venv='all', port='all', upload=False, release=False):
+    """
+    Use docker images to build wxPython.
+
+    This command requires that there is a wxPython source archive in the ../dist
+    folder, such as one produced by `python build.py sdist` or one from a
+    release or snapshot build of wxPython.
+    """
+    if image == []:
+        image = _get_all_distros()
+
+    os.chdir(HERE)
+    dist=os.path.abspath('../dist')
+    for img_name in image:
+        ctx.run('docker run -it --rm -v {}:/dist '
+                'wxpython/build:{} do-build.sh {} {}'.format(dist, img_name, venv, port),
+                pty=True, echo=True)
+
+
+def _get_all_distros():
+    os.chdir(HERE)
+    all_matching = glob.glob("*-*")
+    return all_matching