From bf0b3f2a096832a9063f7816dcc14a0607f67271 Mon Sep 17 00:00:00 2001
From: Scott Bahling <sbahling@mudgum.net>
Date: Sun, 17 Mar 2013 21:26:02 +0100
Subject: initial commit

---
 panfry/cli.py | 144 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 144 insertions(+)
 create mode 100755 panfry/cli.py

(limited to 'panfry/cli.py')

diff --git a/panfry/cli.py b/panfry/cli.py
new file mode 100755
index 0000000..6b4a64d
--- /dev/null
+++ b/panfry/cli.py
@@ -0,0 +1,144 @@
+#
+# Copyright (c) 2013 Scott Bahling, <sbahling@mudgum.net>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program (see the file COPYING); if not, write to the
+# Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
+#
+################################################################
+#
+# cli.py
+# command line argument handling
+
+import yaml
+import argparse
+import copy
+
+__version__ = '0.0.1'
+
+#################################################################
+#
+# The argparse setup is mapped out
+# in a yaml based config called cli_config. The init_argparse
+# methd uses the cli_config to setup the main and sub command
+# parsers.
+#
+#################################################################
+
+#################################################################
+# Argument Parser configuration (YAML)
+#################################################################
+
+cli_config = """
+Args:
+  debug_enabled:
+    flags: [-d, --debug]
+    action: store_true
+    default: False
+    help: 'Turn on verbose messages.'
+
+  run_quiet:
+    flags: [-q, --quiet]
+    action: store_true
+    default: False
+    help: 'Turn off all (debug, warn, info) messages.'
+
+  logfile:
+    flags: [-L, --logfile]
+    default: ''
+    help: 'File to write logs to. Default ./pldptools.log'
+
+  pub_path:
+    flags: [-p, --pubdir]
+    default: './pub'
+    help: 'Directory to place generated documents'
+
+  src_path:
+    flags: [-s, --srcdir]
+    default: '.'
+    help: 'Directory where document source is located'
+
+  templates_path:
+    flags: [-T, --templates]
+    default: ''
+    help: 'Directory where document templates are located'
+
+  css:
+    flags: [-C, --css]
+    default: 'css/style.css'
+    help: |
+        css file for html pages.
+        Includes full path relative to html directory.
+
+
+Parser:
+  help:
+  args:
+    - debug_enabled
+    - run_quiet
+    - logfile
+
+Subparsers:
+  gen:
+    help: generate document from source
+    args:
+      - src_path
+      - pub_path
+      - templates_path
+      - css
+"""
+
+config = yaml.load(cli_config)
+
+parser_config = config.get('Parser', {})
+args = config.get('Args', {})
+subs = config.get('Subparsers', {})
+
+
+def _add_arg(parser, argtype):
+    opts = copy.copy(args.get(argtype))
+    if opts:
+        opts.setdefault('dest', argtype)
+        flags = opts.pop('flags', [])
+        parser.add_argument(*flags, **opts)
+    else:
+        print "Unknown argument type: %s" % argtype
+
+
+def init_argparser():
+
+    description = parser_config.get('description', '')
+    formatter_class = argparse.RawTextHelpFormatter
+    parser = argparse.ArgumentParser(description=description,
+                                     formatter_class=formatter_class,
+                                     )
+    subparsers = parser.add_subparsers()
+
+    version = 'Panfry version: %s' % __version__
+    parser.add_argument('--version', action='version', version=version)
+
+    # setup main parser
+    for item in config['Parser'].get('args', []):
+        _add_arg(parser, item)
+
+    # setup sub-command parsers
+    for sub, conf in subs.items():
+        subparser = subparsers.add_parser(sub,
+                                          help=conf.get('help', ''),
+                                          formatter_class=formatter_class,
+                                          )
+        subparser.set_defaults(cmd=sub)
+        for item in conf.get('args', []):
+            _add_arg(subparser, item)
+
+    return parser
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