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Implement a --add-simple-plugin option for calibre-debug that makes it easy to add calibre plugins distributed as .py files

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This commit is contained in:
Kovid Goyal 2009-04-12 10:25:17 -07:00
parent ffa6c73c8d
commit 2708065870
2 changed files with 60 additions and 30 deletions
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11
src/calibre/customize/ui.py
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@ -2,7 +2,7 @@ from __future__ import with_statement
__license__ = 'GPL v3'
__copyright__ = '2008, Kovid Goyal <kovid at kovidgoyal.net>'
import os, shutil, traceback, functools, sys
import os, shutil, traceback, functools, sys, re
from calibre.customize import Plugin, FileTypePlugin, MetadataReaderPlugin, \
MetadataWriterPlugin
@ -54,7 +54,14 @@ def load_plugin(path_to_zip_file):
for name in zf.namelist():
if name.lower().endswith('plugin.py'):
locals = {}
exec zf.read(name) in locals
raw = zf.read(name)
match = re.search(r'coding[:=]\s*([-\w.]+)', raw[:300])
encoding = 'utf-8'
if match is not None:
encoding = match.group(1)
raw = raw.decode(encoding)
raw = re.sub('\r\n', '\n', raw)
exec raw in locals
for x in locals.values():
if isinstance(x, type) and issubclass(x, Plugin):
if x.minimum_calibre_version > version or \

23
src/calibre/debug.py
View File

@ -31,6 +31,11 @@ Run an embedded python interpreter.
parser.add_option('--migrate', action='store_true', default=False,
help='Migrate old database. Needs two arguments. Path '
'to library1.db and path to new library folder.')
parser.add_option('--add-simple-plugin', default=None,
help='Add a simple plugin (i.e. a plugin that consists of only a '
'.py file), by specifying the path to the py file containing the '
'plugin code.')
return parser
def update_zipfile(zipfile, mod, path):
@ -115,6 +120,22 @@ def debug_device_driver():
print 'Total space:', d.total_space()
break
def add_simple_plugin(path_to_plugin):
import tempfile, zipfile, shutil
tdir = tempfile.mkdtemp()
open(os.path.join(tdir, 'custom_plugin.py'),
'wb').write(open(path_to_plugin, 'rb').read())
odir = os.getcwd()
os.chdir(tdir)
zf = zipfile.ZipFile('plugin.zip', 'w')
zf.write('custom_plugin.py')
zf.close()
from calibre.customize.ui import main
main(['calibre-customize', '-a', 'plugin.zip'])
os.chdir(odir)
shutil.rmtree(tdir)
def main(args=sys.argv):
opts, args = option_parser().parse_args(args)
@ -137,6 +158,8 @@ def main(args=sys.argv):
print 'You must specify the path to library1.db and the path to the new library folder'
return 1
migrate(args[1], args[2])
elif opts.add_simple_plugin is not None:
add_simple_plugin(opts.add_simple_plugin)
else:
from IPython.Shell import IPShellEmbed
ipshell = IPShellEmbed()