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Cache content to speed up reading. Fixes #224.

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Cache read content so that it doesn't have to be read next time if its
source has not been modified.
This commit is contained in:
Ondrej Grover 2014-02-15 21:20:51 +01:00 • committed by Justin Mayer
commit fd77926700
9 changed files with 336 additions and 34 deletions
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19
pelican/__init__.py
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@ -260,6 +260,10 @@ def parse_arguments():
action='store_true',
help='Relaunch pelican each time a modification occurs'
' on the content files.')
parser.add_argument('-f', '--full-rebuild', action='store_true',
dest='full_rebuild', help='Rebuild everything by not loading from cache')
return parser.parse_args()
@ -275,6 +279,8 @@ def get_config(args):
config['THEME'] = abstheme if os.path.exists(abstheme) else args.theme
if args.delete_outputdir is not None:
config['DELETE_OUTPUT_DIRECTORY'] = args.delete_outputdir
if args.full_rebuild:
config['LOAD_CONTENT_CACHE'] = False
# argparse returns bytes in Py2. There is no definite answer as to which
# encoding argparse (or sys.argv) uses.
@ -327,6 +333,7 @@ def main():
print(' --- AutoReload Mode: Monitoring `content`, `theme` and'
' `settings` for changes. ---')
first_run = True # load cache on first run
while True:
try:
# Check source dir for changed files ending with the given
@ -335,9 +342,14 @@ def main():
# have changed, no matter what extension the filenames
# have.
modified = {k: next(v) for k, v in watchers.items()}
original_load_cache = settings['LOAD_CONTENT_CACHE']
if modified['settings']:
pelican, settings = get_instance(args)
if not first_run:
original_load_cache = settings['LOAD_CONTENT_CACHE']
# invalidate cache
pelican.settings['LOAD_CONTENT_CACHE'] = False
if any(modified.values()):
print('\n-> Modified: {}. re-generating...'.format(
@ -349,8 +361,15 @@ def main():
if modified['theme'] is None:
logger.warning('Empty theme folder. Using `basic` '
'theme.')
elif modified['theme']:
# theme modified, needs full rebuild -> no cache
if not first_run: # but not on first run
pelican.settings['LOAD_CONTENT_CACHE'] = False
pelican.run()
first_run = False
# restore original caching policy
pelican.settings['LOAD_CONTENT_CACHE'] = original_load_cache
except KeyboardInterrupt:
logger.warning("Keyboard interrupt, quitting.")