72 lines
2.3 KiB
Python
Executable File
72 lines
2.3 KiB
Python
Executable File
#!/usr/bin/python
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"""
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See https://edx-wiki.atlassian.net/wiki/display/ENG/PO+File+workflow
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This task merges and compiles the human-readable .pofiles on the
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local filesystem into machine-readable .mofiles. This is typically
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necessary as part of the build process since these .mofiles are
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needed by Django when serving the web app.
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The configuration file (in mitx/conf/locale/config) specifies which
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languages to generate.
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"""
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import os
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from polib import pofile
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from config import BASE_DIR, CONFIGURATION
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from execute import execute, remove_file, LOG
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def merge(locale, target='django.po'):
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"""
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For the given locale, merge django-partial.po, messages.po, mako.po -> django.po
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"""
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LOG.info('Merging locale={0}'.format(locale))
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locale_directory = CONFIGURATION.get_messages_dir(locale)
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files_to_merge = ('django-partial.po', 'messages.po', 'mako.po')
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validate_files(locale_directory, files_to_merge)
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# merged file is merged.po
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merge_cmd = 'msgcat -o merged.po ' + ' '.join(files_to_merge)
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execute(merge_cmd, working_directory=locale_directory)
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# clean up redunancies in the metadata
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merged_filename = os.path.join(locale_directory, 'merged.po')
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clean_metadata(merged_filename)
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# rename merged.po -> django.po (default)
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django_filename = os.path.join(locale_directory, target)
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os.rename(merged_filename, django_filename) # can't overwrite file on Windows
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def clean_metadata(file):
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"""
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Clean up redundancies in the metadata caused by merging.
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This reads in a PO file and simply saves it back out again.
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"""
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po = pofile(file)
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po.save()
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def validate_files(dir, files_to_merge):
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"""
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Asserts that the given files exist.
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files_to_merge is a list of file names (no directories).
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dir is the directory in which the files should appear.
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raises an Exception if any of the files are not in dir.
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"""
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for path in files_to_merge:
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pathname = os.path.join(dir, path)
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if not os.path.exists(pathname):
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raise Exception("File not found: {0}".format(pathname))
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def main ():
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for locale in CONFIGURATION.get_locales():
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merge(locale)
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compile_cmd = 'django-admin.py compilemessages'
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execute(compile_cmd, working_directory=BASE_DIR)
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if __name__ == '__main__':
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main()
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