Mercurial > piecrust2

annotate piecrust/commands/builtin/scaffolding.py @ 411:e7b865f8f335

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
bake: Enable multiprocess baking. Baking is now done by running a worker per CPU, and sending jobs to them. This changes several things across the codebase: * Ability to not cache things related to pages other than the 'main' page (i.e. the page at the bottom of the execution stack). * Decouple the baking process from the bake records, so only the main process keeps track (and modifies) the bake record. * Remove the need for 'batch page getters' and loading a page directly from the page factories. There are various smaller changes too included here, including support for scope performance timers that are saved with the bake record and can be printed out to the console. Yes I got carried away. For testing, the in-memory 'mock' file-system doesn't work anymore, since we're spawning processes, so this is replaced by a 'tmpfs' file-system which is saved in temporary files on disk and deleted after tests have run.
author Ludovic Chabant <ludovic@chabant.com>
date Fri, 12 Jun 2015 17:09:19 -0700
parents dd25bd3ce1f9
children 5bbeb11fe8d9
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
100
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
1 import os
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
2 import os.path
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
3 import re
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
4 import io
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
5 import time
187
d5b7c2a4ec9d prepare: Add user-defined scaffolding templates.
Ludovic Chabant <ludovic@chabant.com>
parents: 165
diff changeset
6 import glob
100
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
7 import logging
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
8 import textwrap
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
9 from piecrust import RESOURCES_DIR
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
10 from piecrust.chefutil import print_help_item
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
11 from piecrust.commands.base import ExtendableChefCommand, ChefCommandExtension
242
f130365568ff internal: Code reorganization to put less stuff in `sources.base`.
Ludovic Chabant <ludovic@chabant.com>
parents: 187
diff changeset
12 from piecrust.sources.base import MODE_CREATING
f130365568ff internal: Code reorganization to put less stuff in `sources.base`.
Ludovic Chabant <ludovic@chabant.com>
parents: 187
diff changeset
13 from piecrust.sources.interfaces import IPreparingSource
100
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
14 from piecrust.uriutil import multi_replace
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
15
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
16
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
17 logger = logging.getLogger(__name__)
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
18
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
19
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
20 def make_title(slug):
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
21 slug = re.sub(r'[\-_]', ' ', slug)
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
22 return slug.title()
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
23
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
24
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
25 class PrepareCommand(ExtendableChefCommand):
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
26 """ Chef command for creating pages with some default content.
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
27 """
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
28 def __init__(self):
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
29 super(PrepareCommand, self).__init__()
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
30 self.name = 'prepare'
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
31 self.description = "Prepares new content for your website."
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
32
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
33 def setupParser(self, parser, app):
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
34 # Don't setup anything if this is a null app
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
35 # (for when `chef` is run from outside a website)
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
36 if app.root_dir is None:
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
37 return
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
38
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
39 subparsers = parser.add_subparsers()
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
40 for src in app.sources:
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
41 if not isinstance(src, IPreparingSource):
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
42 logger.debug("Skipping source '%s' because it's not "
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
43 "preparable." % src.name)
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
44 continue
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
45 if src.is_theme_source:
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
46 logger.debug("Skipping source '%s' because it's a theme "
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
47 "source." % src.name)
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
48 continue
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
49 p = subparsers.add_parser(
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
50 src.item_name,
165
8355eb9dd8fe prepare: Show a more friendly user message when no arguments are given.
Ludovic Chabant <ludovic@chabant.com>
parents: 100
diff changeset
51 help=("Creates an empty page in the '%s' source." %
8355eb9dd8fe prepare: Show a more friendly user message when no arguments are given.
Ludovic Chabant <ludovic@chabant.com>
parents: 100
diff changeset
52 src.name))
100
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
53 src.setupPrepareParser(p, app)
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
54 p.add_argument('-t', '--template', default='default',
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
55 help="The template to use, which will change the "
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
56 "generated text and header.")
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
57 p.set_defaults(source=src)
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
58
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
59 def run(self, ctx):
165
8355eb9dd8fe prepare: Show a more friendly user message when no arguments are given.
Ludovic Chabant <ludovic@chabant.com>
parents: 100
diff changeset
60 if not hasattr(ctx.args, 'source'):
8355eb9dd8fe prepare: Show a more friendly user message when no arguments are given.
Ludovic Chabant <ludovic@chabant.com>
parents: 100
diff changeset
61 raise Exception("No source specified. "
8355eb9dd8fe prepare: Show a more friendly user message when no arguments are given.
Ludovic Chabant <ludovic@chabant.com>
parents: 100
diff changeset
62 "Please run `chef prepare -h` for usage.")
8355eb9dd8fe prepare: Show a more friendly user message when no arguments are given.
Ludovic Chabant <ludovic@chabant.com>
parents: 100
diff changeset
63
100
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
64 app = ctx.app
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
65 source = ctx.args.source
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
66 metadata = source.buildMetadata(ctx.args)
363
dd25bd3ce1f9 serve: Refactoring and fixes to be able to serve taxonomy pages.
Ludovic Chabant <ludovic@chabant.com>
parents: 242
diff changeset
67 factory = source.findPageFactory(metadata, MODE_CREATING)
dd25bd3ce1f9 serve: Refactoring and fixes to be able to serve taxonomy pages.
Ludovic Chabant <ludovic@chabant.com>
parents: 242
diff changeset
68 path = factory.path
100
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
69 name, ext = os.path.splitext(path)
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
70 if ext == '.*':
165
8355eb9dd8fe prepare: Show a more friendly user message when no arguments are given.
Ludovic Chabant <ludovic@chabant.com>
parents: 100
diff changeset
71 path = '%s.%s' % (
8355eb9dd8fe prepare: Show a more friendly user message when no arguments are given.
Ludovic Chabant <ludovic@chabant.com>
parents: 100
diff changeset
72 name,
100
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
73 app.config.get('site/default_auto_format'))
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
74 if os.path.exists(path):
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
75 raise Exception("'%s' already exists." % path)
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
76
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
77 tpl_name = ctx.args.template
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
78 extensions = self.getExtensions(app)
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
79 ext = next(
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
80 filter(
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
81 lambda e: tpl_name in e.getTemplateNames(ctx.app),
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
82 extensions),
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
83 None)
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
84 if ext is None:
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
85 raise Exception("No such page template: %s" % tpl_name)
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
86
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
87 tpl_text = ext.getTemplate(ctx.app, tpl_name)
187
d5b7c2a4ec9d prepare: Add user-defined scaffolding templates.
Ludovic Chabant <ludovic@chabant.com>
parents: 165
diff changeset
88 if tpl_text is None:
d5b7c2a4ec9d prepare: Add user-defined scaffolding templates.
Ludovic Chabant <ludovic@chabant.com>
parents: 165
diff changeset
89 raise Exception("Error loading template: %s" % tpl_name)
100
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
90 title = (metadata.get('slug') or metadata.get('path') or
165
8355eb9dd8fe prepare: Show a more friendly user message when no arguments are given.
Ludovic Chabant <ludovic@chabant.com>
parents: 100
diff changeset
91 'Untitled page')
100
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
92 title = make_title(title)
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
93 tokens = {
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
94 '%title%': title,
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
95 '%time.today%': time.strftime('%Y/%m/%d'),
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
96 '%time.now%': time.strftime('%H:%M:%S')}
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
97 tpl_text = multi_replace(tpl_text, tokens)
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
98
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
99 logger.info("Creating page: %s" % os.path.relpath(path, app.root_dir))
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
100 if not os.path.exists(os.path.dirname(path)):
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
101 os.makedirs(os.path.dirname(path), 0o755)
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
102
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
103 with open(path, 'w') as f:
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
104 f.write(tpl_text)
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
105
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
106
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
107 class DefaultPrepareTemplatesCommandExtension(ChefCommandExtension):
187
d5b7c2a4ec9d prepare: Add user-defined scaffolding templates.
Ludovic Chabant <ludovic@chabant.com>
parents: 165
diff changeset
108 """ Provides the default scaffolding templates to the `prepare`
100
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
109 command.
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
110 """
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
111 def __init__(self):
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
112 super(DefaultPrepareTemplatesCommandExtension, self).__init__()
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
113 self.command_name = 'prepare'
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
114
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
115 def getTemplateNames(self, app):
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
116 return ['default', 'rss', 'atom']
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
117
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
118 def getTemplateDescription(self, app, name):
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
119 descs = {
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
120 'default': "The default template, for a simple page.",
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
121 'rss': "A fully functional RSS feed.",
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
122 'atom': "A fully functional Atom feed."}
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
123 return descs[name]
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
124
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
125 def getTemplate(self, app, name):
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
126 assert name in ['default', 'rss', 'atom']
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
127 src_path = os.path.join(RESOURCES_DIR, 'prepare', '%s.html' % name)
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
128 with open(src_path, 'r', encoding='utf8') as fp:
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
129 return fp.read()
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
130
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
131
187
d5b7c2a4ec9d prepare: Add user-defined scaffolding templates.
Ludovic Chabant <ludovic@chabant.com>
parents: 165
diff changeset
132 class UserDefinedPrepareTemplatesCommandExtension(ChefCommandExtension):
d5b7c2a4ec9d prepare: Add user-defined scaffolding templates.
Ludovic Chabant <ludovic@chabant.com>
parents: 165
diff changeset
133 """ Provides user-defined scaffolding templates to the `prepare`
d5b7c2a4ec9d prepare: Add user-defined scaffolding templates.
Ludovic Chabant <ludovic@chabant.com>
parents: 165
diff changeset
134 command.
d5b7c2a4ec9d prepare: Add user-defined scaffolding templates.
Ludovic Chabant <ludovic@chabant.com>
parents: 165
diff changeset
135 """
d5b7c2a4ec9d prepare: Add user-defined scaffolding templates.
Ludovic Chabant <ludovic@chabant.com>
parents: 165
diff changeset
136 def __init__(self):
d5b7c2a4ec9d prepare: Add user-defined scaffolding templates.
Ludovic Chabant <ludovic@chabant.com>
parents: 165
diff changeset
137 super(UserDefinedPrepareTemplatesCommandExtension, self).__init__()
d5b7c2a4ec9d prepare: Add user-defined scaffolding templates.
Ludovic Chabant <ludovic@chabant.com>
parents: 165
diff changeset
138 self.command_name = 'prepare'
d5b7c2a4ec9d prepare: Add user-defined scaffolding templates.
Ludovic Chabant <ludovic@chabant.com>
parents: 165
diff changeset
139
d5b7c2a4ec9d prepare: Add user-defined scaffolding templates.
Ludovic Chabant <ludovic@chabant.com>
parents: 165
diff changeset
140 def _getTemplatesDir(self, app):
d5b7c2a4ec9d prepare: Add user-defined scaffolding templates.
Ludovic Chabant <ludovic@chabant.com>
parents: 165
diff changeset
141 return os.path.join(app.root_dir, 'scaffold/pages')
d5b7c2a4ec9d prepare: Add user-defined scaffolding templates.
Ludovic Chabant <ludovic@chabant.com>
parents: 165
diff changeset
142
d5b7c2a4ec9d prepare: Add user-defined scaffolding templates.
Ludovic Chabant <ludovic@chabant.com>
parents: 165
diff changeset
143 def supports(self, app):
d5b7c2a4ec9d prepare: Add user-defined scaffolding templates.
Ludovic Chabant <ludovic@chabant.com>
parents: 165
diff changeset
144 return os.path.isdir(self._getTemplatesDir(app))
d5b7c2a4ec9d prepare: Add user-defined scaffolding templates.
Ludovic Chabant <ludovic@chabant.com>
parents: 165
diff changeset
145
d5b7c2a4ec9d prepare: Add user-defined scaffolding templates.
Ludovic Chabant <ludovic@chabant.com>
parents: 165
diff changeset
146 def getTemplateNames(self, app):
d5b7c2a4ec9d prepare: Add user-defined scaffolding templates.
Ludovic Chabant <ludovic@chabant.com>
parents: 165
diff changeset
147 names = os.listdir(self._getTemplatesDir(app))
d5b7c2a4ec9d prepare: Add user-defined scaffolding templates.
Ludovic Chabant <ludovic@chabant.com>
parents: 165
diff changeset
148 return map(lambda n: os.path.splitext(n)[0], names)
d5b7c2a4ec9d prepare: Add user-defined scaffolding templates.
Ludovic Chabant <ludovic@chabant.com>
parents: 165
diff changeset
149
d5b7c2a4ec9d prepare: Add user-defined scaffolding templates.
Ludovic Chabant <ludovic@chabant.com>
parents: 165
diff changeset
150 def getTemplateDescription(self, app, name):
d5b7c2a4ec9d prepare: Add user-defined scaffolding templates.
Ludovic Chabant <ludovic@chabant.com>
parents: 165
diff changeset
151 return "User-defined template."
d5b7c2a4ec9d prepare: Add user-defined scaffolding templates.
Ludovic Chabant <ludovic@chabant.com>
parents: 165
diff changeset
152
d5b7c2a4ec9d prepare: Add user-defined scaffolding templates.
Ludovic Chabant <ludovic@chabant.com>
parents: 165
diff changeset
153 def getTemplate(self, app, name):
d5b7c2a4ec9d prepare: Add user-defined scaffolding templates.
Ludovic Chabant <ludovic@chabant.com>
parents: 165
diff changeset
154 templates_dir = self._getTemplatesDir(app)
d5b7c2a4ec9d prepare: Add user-defined scaffolding templates.
Ludovic Chabant <ludovic@chabant.com>
parents: 165
diff changeset
155 pattern = os.path.join(templates_dir, '%s.*' % name)
d5b7c2a4ec9d prepare: Add user-defined scaffolding templates.
Ludovic Chabant <ludovic@chabant.com>
parents: 165
diff changeset
156 matches = glob.glob(pattern)
d5b7c2a4ec9d prepare: Add user-defined scaffolding templates.
Ludovic Chabant <ludovic@chabant.com>
parents: 165
diff changeset
157 if not matches:
d5b7c2a4ec9d prepare: Add user-defined scaffolding templates.
Ludovic Chabant <ludovic@chabant.com>
parents: 165
diff changeset
158 raise Exception("No such page scaffolding template: %s" % name)
d5b7c2a4ec9d prepare: Add user-defined scaffolding templates.
Ludovic Chabant <ludovic@chabant.com>
parents: 165
diff changeset
159 if len(matches) > 1:
d5b7c2a4ec9d prepare: Add user-defined scaffolding templates.
Ludovic Chabant <ludovic@chabant.com>
parents: 165
diff changeset
160 raise Exception(
d5b7c2a4ec9d prepare: Add user-defined scaffolding templates.
Ludovic Chabant <ludovic@chabant.com>
parents: 165
diff changeset
161 "More than one scaffolding template has name: %s" % name)
d5b7c2a4ec9d prepare: Add user-defined scaffolding templates.
Ludovic Chabant <ludovic@chabant.com>
parents: 165
diff changeset
162 with open(matches[0], 'r', encoding='utf8') as fp:
d5b7c2a4ec9d prepare: Add user-defined scaffolding templates.
Ludovic Chabant <ludovic@chabant.com>
parents: 165
diff changeset
163 return fp.read()
d5b7c2a4ec9d prepare: Add user-defined scaffolding templates.
Ludovic Chabant <ludovic@chabant.com>
parents: 165
diff changeset
164
d5b7c2a4ec9d prepare: Add user-defined scaffolding templates.
Ludovic Chabant <ludovic@chabant.com>
parents: 165
diff changeset
165
100
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
166 class DefaultPrepareTemplatesHelpTopic(ChefCommandExtension):
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
167 """ Provides help topics for the `prepare` command.
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
168 """
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
169 command_name = 'help'
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
170
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
171 def getHelpTopics(self):
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
172 return [('scaffolding',
165
8355eb9dd8fe prepare: Show a more friendly user message when no arguments are given.
Ludovic Chabant <ludovic@chabant.com>
parents: 100
diff changeset
173 "Available templates for the 'prepare' command.")]
100
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
174
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
175 def getHelpTopic(self, topic, app):
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
176 with io.StringIO() as tplh:
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
177 extensions = app.plugin_loader.getCommandExtensions()
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
178 for e in extensions:
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
179 if e.command_name == 'prepare' and e.supports(app):
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
180 for n in e.getTemplateNames(app):
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
181 d = e.getTemplateDescription(app, n)
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
182 print_help_item(tplh, n, d)
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
183 help_list = tplh.getvalue()
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
184
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
185 help_txt = (
165
8355eb9dd8fe prepare: Show a more friendly user message when no arguments are given.
Ludovic Chabant <ludovic@chabant.com>
parents: 100
diff changeset
186 textwrap.fill(
8355eb9dd8fe prepare: Show a more friendly user message when no arguments are given.
Ludovic Chabant <ludovic@chabant.com>
parents: 100
diff changeset
187 "Running the 'prepare' command will let "
8355eb9dd8fe prepare: Show a more friendly user message when no arguments are given.
Ludovic Chabant <ludovic@chabant.com>
parents: 100
diff changeset
188 "PieCrust setup a page for you in the correct place, with "
8355eb9dd8fe prepare: Show a more friendly user message when no arguments are given.
Ludovic Chabant <ludovic@chabant.com>
parents: 100
diff changeset
189 "some hopefully useful default text.") +
100
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
190 "\n\n" +
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
191 textwrap.fill("The following templates are available:") +
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
192 "\n\n" +
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
193 help_list)
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
194 return help_txt
69d5eecfa449 Better `prepare` command, with templates and help topics.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
195