mirror of https://github.com/zulip/zulip.git
135 lines
5.2 KiB
Python
Executable File
135 lines
5.2 KiB
Python
Executable File
#!/usr/bin/env python
|
|
|
|
# Minifies JavaScripts, creating source maps
|
|
|
|
from __future__ import absolute_import
|
|
from __future__ import print_function
|
|
|
|
import os
|
|
import subprocess
|
|
import optparse
|
|
import sys
|
|
import six
|
|
|
|
from typing import Optional, Set
|
|
|
|
parser = optparse.OptionParser()
|
|
parser.add_option('--prev-deploy', nargs=1, metavar='DIR',
|
|
help='A previous deploy from which to reuse files if possible')
|
|
(options, args) = parser.parse_args()
|
|
prev_deploy = options.prev_deploy
|
|
|
|
# We have to pull out JS_SPECS, defined in our settings file, so we know what
|
|
# JavaScript source files to minify (and what output files to create).
|
|
sys.path.insert(0, os.path.join(os.path.dirname(__file__), '..'))
|
|
os.environ['DJANGO_SETTINGS_MODULE'] = 'zproject.settings'
|
|
from django.conf import settings
|
|
|
|
os.chdir(settings.DEPLOY_ROOT)
|
|
|
|
STATIC_PATH = 'static/'
|
|
|
|
# Compile Handlebars templates
|
|
subprocess.check_call(['tools/compile-handlebars-templates'])
|
|
|
|
# Create webpack bundle
|
|
subprocess.check_call(['tools/webpack'])
|
|
|
|
def get_changed_source_files(other_checkout):
|
|
# type: (Optional[str]) -> Optional[Set[str]]
|
|
""" Get list of changed static files since other_checkout.
|
|
If git fails to return a reasonable looking list, this returns None,
|
|
in which case it should be assumed no files can be reused from
|
|
other_checkout. """
|
|
|
|
try:
|
|
git_dir = os.path.join(other_checkout, '.git')
|
|
old_commit_sha1 = subprocess.check_output(['git', 'rev-parse', 'HEAD'],
|
|
env={'GIT_DIR': git_dir}, universal_newlines=True)
|
|
old_commit_sha1 = old_commit_sha1.rstrip()
|
|
|
|
git_diff = subprocess.check_output(['git', 'diff', '--name-only',
|
|
old_commit_sha1], universal_newlines=True)
|
|
except subprocess.CalledProcessError:
|
|
# If git returned an error, assume we can't reuse any files, and
|
|
# regenerate everything.
|
|
print("Warning: git returned an error when comparing to the previous")
|
|
print ("deploy in %s. Will re-minify JavaScript instead of reusing"
|
|
% (other_checkout,))
|
|
return None
|
|
|
|
changed = set() # type: Set[str]
|
|
for filename in git_diff.split('\n'):
|
|
if not filename.startswith(STATIC_PATH):
|
|
continue # Ignore non-static files.
|
|
|
|
if filename.endswith('.handlebars'):
|
|
continue
|
|
|
|
changed.add(filename)
|
|
|
|
return changed
|
|
|
|
|
|
changed_files = set() # type: Set[str]
|
|
if prev_deploy:
|
|
changed_files = get_changed_source_files(prev_deploy)
|
|
if changed_files is None:
|
|
prev_deploy = None
|
|
|
|
# Always use the newly compiled handlebars templates and webpack bundle.
|
|
if prev_deploy:
|
|
changed_files.add(os.path.join(STATIC_PATH, 'templates/compiled.js'))
|
|
changed_files.add(os.path.join(STATIC_PATH, 'js/bundle.js'))
|
|
|
|
JS_SPECS = settings.JS_SPECS
|
|
CLOSURE_BINARY = '/usr/bin/closure-compiler'
|
|
if not os.path.exists(CLOSURE_BINARY):
|
|
CLOSURE_BINARY = 'tools/closure-compiler/run'
|
|
if not os.path.exists(CLOSURE_BINARY):
|
|
print("closure-compiler not installed; the Vagrant tools/provision.py installs it via apt "\
|
|
"or you can manually unpack http://dl.google.com/closure-compiler/compiler-latest.zip to "\
|
|
"tools/closure-compiler")
|
|
sys.exit(1)
|
|
|
|
# Where to put minified JS and source maps
|
|
MIN_DIR = os.path.join(STATIC_PATH, 'min/')
|
|
MAP_DIR = os.path.join(STATIC_PATH, 'source-map/')
|
|
subprocess.check_call(['mkdir', '-p', MIN_DIR, MAP_DIR])
|
|
|
|
for js_group, filespec in six.iteritems(JS_SPECS):
|
|
# JS_SPECS look like 'js/foobar.js'.
|
|
# changed_files look like 'static/js/foobar.js'.
|
|
# So we prepend 'static/' to the JS_SPECS so these match up.
|
|
in_files = [os.path.join(STATIC_PATH, filename)
|
|
for filename in filespec['source_filenames']]
|
|
|
|
out_file = os.path.join(MIN_DIR, os.path.basename(filespec['output_filename']))
|
|
map_file = os.path.join(MAP_DIR, os.path.basename(filespec['output_filename'])
|
|
+ '.map')
|
|
|
|
if (not 'force_minify' in filespec) and (prev_deploy and len(set(in_files) & changed_files) == 0):
|
|
# Try to reuse the output file from previous deploy
|
|
try:
|
|
for dest in [out_file, map_file]:
|
|
src = os.path.join(prev_deploy, dest)
|
|
os.path.getsize(src) # Just to throw error if it doesn't exist.
|
|
if os.path.abspath(src) != os.path.abspath(dest):
|
|
subprocess.check_call(['cp', src, dest])
|
|
continue # Copy succeeded, so go on to next file.
|
|
except (subprocess.CalledProcessError, OSError):
|
|
pass # Copy failed, so fall through to minification instead.
|
|
|
|
# No previous deploy, or a source file has changed, or copying was
|
|
# supposed to work but failed. Thus, minify the JS anew.
|
|
# (N.B. we include STATIC_HEADER_FILE before the JavaScripts.
|
|
# This way it doesn't throw off the source map.)
|
|
cmd = '%s --language_in ECMASCRIPT5 --create_source_map %s %s %s' % (
|
|
CLOSURE_BINARY, map_file,
|
|
settings.STATIC_HEADER_FILE, ' '.join(in_files))
|
|
js = subprocess.check_output(cmd, shell=True)
|
|
|
|
# Write out the JS
|
|
with open(out_file, 'wb') as fp:
|
|
fp.write(js)
|