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# Recipe creation tool - node.js NPM module support plugin
#
# Copyright (C) 2016 Intel Corporation
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
import os
import logging
import subprocess
import tempfile
import shutil
import json
from recipetool.create import RecipeHandler, split_pkg_licenses, handle_license_vars, check_npm
logger = logging.getLogger('recipetool')
tinfoil = None
def tinfoil_init(instance):
global tinfoil
tinfoil = instance
class NpmRecipeHandler(RecipeHandler):
lockdownpath = None
def _handle_license(self, data):
'''
Handle the license value from an npm package.json file
'''
license = None
if 'license' in data:
license = data['license']
if isinstance(license, dict):
license = license.get('type', None)
return license
def _shrinkwrap(self, srctree, localfilesdir, extravalues, lines_before):
try:
runenv = dict(os.environ, PATH=tinfoil.config_data.getVar('PATH', True))
bb.process.run('npm shrinkwrap', cwd=srctree, stderr=subprocess.STDOUT, env=runenv, shell=True)
except bb.process.ExecutionError as e:
logger.warn('npm shrinkwrap failed:\n%s' % e.stdout)
return
tmpfile = os.path.join(localfilesdir, 'npm-shrinkwrap.json')
shutil.move(os.path.join(srctree, 'npm-shrinkwrap.json'), tmpfile)
extravalues.setdefault('extrafiles', {})
extravalues['extrafiles']['npm-shrinkwrap.json'] = tmpfile
lines_before.append('NPM_SHRINKWRAP := "${THISDIR}/${PN}/npm-shrinkwrap.json"')
def _lockdown(self, srctree, localfilesdir, extravalues, lines_before):
runenv = dict(os.environ, PATH=tinfoil.config_data.getVar('PATH', True))
if not NpmRecipeHandler.lockdownpath:
NpmRecipeHandler.lockdownpath = tempfile.mkdtemp('recipetool-npm-lockdown')
bb.process.run('npm install lockdown --prefix %s' % NpmRecipeHandler.lockdownpath,
cwd=srctree, stderr=subprocess.STDOUT, env=runenv, shell=True)
relockbin = os.path.join(NpmRecipeHandler.lockdownpath, 'node_modules', 'lockdown', 'relock.js')
if not os.path.exists(relockbin):
logger.warn('Could not find relock.js within lockdown directory; skipping lockdown')
return
try:
bb.process.run('node %s' % relockbin, cwd=srctree, stderr=subprocess.STDOUT, env=runenv, shell=True)
except bb.process.ExecutionError as e:
logger.warn('lockdown-relock failed:\n%s' % e.stdout)
return
tmpfile = os.path.join(localfilesdir, 'lockdown.json')
shutil.move(os.path.join(srctree, 'lockdown.json'), tmpfile)
extravalues.setdefault('extrafiles', {})
extravalues['extrafiles']['lockdown.json'] = tmpfile
lines_before.append('NPM_LOCKDOWN := "${THISDIR}/${PN}/lockdown.json"')
def _handle_dependencies(self, d, deps, lines_before, srctree):
import scriptutils
# If this isn't a single module we need to get the dependencies
# and add them to SRC_URI
def varfunc(varname, origvalue, op, newlines):
if varname == 'SRC_URI':
if not origvalue.startswith('npm://'):
src_uri = origvalue.split()
changed = False
for dep, depdata in deps.items():
version = self.get_node_version(dep, depdata, d)
if version:
url = 'npm://registry.npmjs.org;name=%s;version=%s;subdir=node_modules/%s' % (dep, version, dep)
scriptutils.fetch_uri(d, url, srctree)
src_uri.append(url)
changed = True
if changed:
return src_uri, None, -1, True
return origvalue, None, 0, True
updated, newlines = bb.utils.edit_metadata(lines_before, ['SRC_URI'], varfunc)
if updated:
del lines_before[:]
for line in newlines:
# Hack to avoid newlines that edit_metadata inserts
if line.endswith('\n'):
line = line[:-1]
lines_before.append(line)
return updated
def _replace_license_vars(self, srctree, lines_before, handled, extravalues, d):
for item in handled:
if isinstance(item, tuple):
if item[0] == 'license':
del item
break
calledvars = []
def varfunc(varname, origvalue, op, newlines):
if varname in ['LICENSE', 'LIC_FILES_CHKSUM']:
for i, e in enumerate(reversed(newlines)):
if not e.startswith('#'):
stop = i
while stop > 0:
newlines.pop()
stop -= 1
break
calledvars.append(varname)
if len(calledvars) > 1:
# The second time around, put the new license text in
insertpos = len(newlines)
handle_license_vars(srctree, newlines, handled, extravalues, d)
return None, None, 0, True
return origvalue, None, 0, True
updated, newlines = bb.utils.edit_metadata(lines_before, ['LICENSE', 'LIC_FILES_CHKSUM'], varfunc)
if updated:
del lines_before[:]
lines_before.extend(newlines)
else:
raise Exception('Did not find license variables')
def process(self, srctree, classes, lines_before, lines_after, handled, extravalues):
import bb.utils
import oe
from collections import OrderedDict
if 'buildsystem' in handled:
return False
def read_package_json(fn):
with open(fn, 'r', errors='surrogateescape') as f:
return json.loads(f.read())
files = RecipeHandler.checkfiles(srctree, ['package.json'])
if files:
check_npm(tinfoil.config_data)
data = read_package_json(files[0])
if 'name' in data and 'version' in data:
extravalues['PN'] = data['name']
extravalues['PV'] = data['version']
classes.append('npm')
handled.append('buildsystem')
if 'description' in data:
extravalues['SUMMARY'] = data['description']
if 'homepage' in data:
extravalues['HOMEPAGE'] = data['homepage']
deps = data.get('dependencies', {})
updated = self._handle_dependencies(tinfoil.config_data, deps, lines_before, srctree)
if updated:
# We need to redo the license stuff
self._replace_license_vars(srctree, lines_before, handled, extravalues, tinfoil.config_data)
# Shrinkwrap
localfilesdir = tempfile.mkdtemp(prefix='recipetool-npm')
self._shrinkwrap(srctree, localfilesdir, extravalues, lines_before)
# Lockdown
self._lockdown(srctree, localfilesdir, extravalues, lines_before)
# Split each npm module out to is own package
npmpackages = oe.package.npm_split_package_dirs(srctree)
for item in handled:
if isinstance(item, tuple):
if item[0] == 'license':
licvalues = item[1]
break
if licvalues:
# Augment the license list with information we have in the packages
licenses = {}
license = self._handle_license(data)
if license:
licenses['${PN}'] = license
for pkgname, pkgitem in npmpackages.items():
_, pdata = pkgitem
license = self._handle_license(pdata)
if license:
licenses[pkgname] = license
# Now write out the package-specific license values
# We need to strip out the json data dicts for this since split_pkg_licenses
# isn't expecting it
packages = OrderedDict((x,y[0]) for x,y in npmpackages.items())
packages['${PN}'] = ''
pkglicenses = split_pkg_licenses(licvalues, packages, lines_after, licenses)
all_licenses = list(set([item for pkglicense in pkglicenses.values() for item in pkglicense]))
# Go back and update the LICENSE value since we have a bit more
# information than when that was written out (and we know all apply
# vs. there being a choice, so we can join them with &)
for i, line in enumerate(lines_before):
if line.startswith('LICENSE = '):
lines_before[i] = 'LICENSE = "%s"' % ' & '.join(all_licenses)
break
# Need to move S setting after inherit npm
for i, line in enumerate(lines_before):
if line.startswith('S ='):
lines_before.pop(i)
lines_after.insert(0, '# Must be set after inherit npm since that itself sets S')
lines_after.insert(1, line)
break
return True
return False
# FIXME this is duplicated from lib/bb/fetch2/npm.py
def _parse_view(self, output):
'''
Parse the output of npm view --json; the last JSON result
is assumed to be the one that we're interested in.
'''
pdata = None
outdeps = {}
datalines = []
bracelevel = 0
for line in output.splitlines():
if bracelevel:
datalines.append(line)
elif '{' in line:
datalines = []
datalines.append(line)
bracelevel = bracelevel + line.count('{') - line.count('}')
if datalines:
pdata = json.loads('\n'.join(datalines))
return pdata
# FIXME this is effectively duplicated from lib/bb/fetch2/npm.py
# (split out from _getdependencies())
def get_node_version(self, pkg, version, d):
import bb.fetch2
pkgfullname = pkg
if version != '*' and not '/' in version:
pkgfullname += "@'%s'" % version
logger.debug(2, "Calling getdeps on %s" % pkg)
runenv = dict(os.environ, PATH=d.getVar('PATH', True))
fetchcmd = "npm view %s --json" % pkgfullname
output, _ = bb.process.run(fetchcmd, stderr=subprocess.STDOUT, env=runenv, shell=True)
data = self._parse_view(output)
return data.get('version', None)
def register_recipe_handlers(handlers):
handlers.append((NpmRecipeHandler(), 60))
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