import requests
import os
import re
import sys
import json
import pkg_resources
from pkg_resources import parse_version
from .funcs import Environment
from pwem import Domain
from pyworkflow.utils import redStr, yellowStr
from pyworkflow.utils.path import cleanPath
from pyworkflow import LAST_VERSION, CORE_VERSION, Config
from importlib import reload
NULL_VERSION = "0.0.0"
# This constant is used in order to install all plugins taking into account a
# json file
DEVEL_VERSION = "999.9.9"
REPOSITORY_URL = Config.SCIPION_PLUGIN_JSON
if REPOSITORY_URL is None:
REPOSITORY_URL = Config.SCIPION_PLUGIN_REPO_URL
PIP_BASE_URL = 'https://pypi.python.org/pypi'
PIP_CMD = '{0} -m pip install %(installSrc)s'.format(
Environment.getPython())
PIP_UNINSTALL_CMD = '{0} -m pip uninstall -y %s'.format(
Environment.getPython())
[docs]class PluginInfo(object):
def __init__(self, pipName="", name="", pluginSourceUrl="", remote=True,
plugin=None, **kwargs):
self.pipName = pipName
self.name = name
self.pluginSourceUrl = pluginSourceUrl
self.remote = remote
# things from pypi
self.homePage = ""
self.summary = ""
self.author = ""
self.email = ""
self.compatibleReleases = {}
self.latestRelease = ""
# things we have when installed
self.dirName = ""
self.pipVersion = ""
self.binVersions = []
self.pluginEnv = None
# Distribution
self._dist = None
self._plugin = plugin
if self.remote:
self.setRemotePluginInfo()
else:
self.setFakedRemotePluginInfo()
self.setLocalPluginInfo() # get local info if installed
# ###################### Install funcs ############################
[docs] def install(self):
"""Installs both pip module and default binaries of
the plugin"""
self.installPipModule()
self.installBin()
self.setLocalPluginInfo()
def _getDistribution(self):
if self._dist is None:
try:
self._dist = pkg_resources.get_distribution(self.pipName)
except:
pass
return self._dist
def _getPlugin(self):
if self._plugin is None:
try:
dirname = self.getDirName()
self._plugin = Config.getDomain().getPluginModule(dirname)
except:
pass
return self._plugin
[docs] def hasPipPackage(self):
"""Checks if the current plugin is installed via pip"""
return self._getDistribution() is not None
[docs] def isInstalled(self):
"""Checks if the current plugin is installed (i.e. has pip package).
NOTE: we might want to change definition of isInstalled, hence the extra function."""
reload(pkg_resources)
return self.hasPipPackage()
[docs] def installPipModule(self, version=""):
"""Installs the version specified of the pip plugin, as long as it is compatible
with the current Scipion version. If no version specified, will install latest
compatible one."""
environment = Environment()
if not version:
version = self.latestRelease
elif version not in self.compatibleReleases:
if self.compatibleReleases:
print('%s version %s not compatible with current Scipion '
'version %s.' % (self.pipName, version, LAST_VERSION))
print("Please choose a compatible release: %s" % " ".join(
self.compatibleReleases.keys()))
else:
print("%s has no compatible versions with current Scipion "
"version %s." % (self.pipName, LAST_VERSION))
return False
if version == NULL_VERSION:
print("Plugin %s is not available for this Scipion %s yet" % (self.pipName, LAST_VERSION))
return False
if self.pluginSourceUrl:
if os.path.exists(self.pluginSourceUrl):
# install from dir in editable mode
installSrc = '-e %s' % self.pluginSourceUrl
target = "%s*" % self.pipName
else:
# path doesn't exist, we assume is git and force install
installSrc = '--upgrade git+%s' % self.pluginSourceUrl
target = "%s*" % self.pipName.replace('-', '_')
else:
# install from pypi
installSrc = "%s==%s" % (self.pipName, version)
target = "%s*" % self.pipName.replace('-', '_')
cmd = PIP_CMD % {'installSrc': installSrc}
pipModule = environment.addPipModule(self.pipName,
target=target,
pipCmd=cmd)
# check if we're doing a version change of an already installed plugin
reloadPkgRes = self.isInstalled()
environment.execute()
# we already have a dir for the plugin:
if reloadPkgRes:
# if plugin was already installed, pkg_resources has the old one
# so it needs a reload
reload(pkg_resources)
self.dirName = self.getDirName()
Domain.refreshPlugin(self.dirName)
return True
[docs] def installBin(self, args=None):
"""Install binaries of the plugin. Args is the list of args to be
passed to the install environment."""
environment = self.getInstallenv(envArgs=args)
environment.execute()
[docs] def uninstallBins(self, binList=None):
"""Uninstall binaries of the plugin.
:param binList: if given, will uninstall the binaries in it. The binList
may contain strings with only the name of the binary or
name and version in the format name-version
:returns None
"""
if binList is None:
binList = self.binVersions
binFolder = Environment.getEmFolder()
for binVersion in binList:
f = os.path.join(binFolder, binVersion)
if os.path.exists(f):
print('Removing %s binaries...' % binVersion)
realPath = os.path.realpath(f) # in case it's a link
cleanPath(f, realPath)
print('Binary %s has been uninstalled successfully ' % binVersion)
else:
print('The binary %s does not exist ' % binVersion)
return
[docs] def uninstallPip(self):
"""Removes pip package from site-packages"""
print('Removing %s plugin...' % self.pipName)
import subprocess
args = (PIP_UNINSTALL_CMD % self.pipName).split()
subprocess.call(PIP_UNINSTALL_CMD % self.pipName, shell=True,
stdout=sys.stdout,
stderr=sys.stderr)
# ###################### Remote data funcs ############################
[docs] def getPipJsonData(self):
""""Request json data from pypi, return json content"""
pipData = requests.get("%s/%s/json" % (PIP_BASE_URL, self.pipName))
if pipData.ok:
pipData = pipData.json()
return pipData
else:
print("Warning: Couldn't get remote plugin data for %s" % self.pipName)
return {}
[docs] def getCompatiblePipReleases(self, pipJsonData=None):
"""Get pip releases of this plugin that are compatible with
current Scipion version. Returns dict with all compatible releases and
a special key "latest" with the most recent one."""
if pipJsonData is None:
pipJsonData = self.getPipJsonData()
reg = r'scipion-([\d.]*\d)'
releases = {}
latestCompRelease = NULL_VERSION
for release, releaseData in pipJsonData['releases'].items():
releaseData = releaseData[0]
scipionVersions = [parse_version(v)
for v in re.findall(reg,
releaseData['comment_text'])]
if len(scipionVersions) != 0:
releases[release] = releaseData
if any([v == parse_version(CORE_VERSION)
for v in scipionVersions]):
if parse_version(latestCompRelease) < parse_version(release):
latestCompRelease = release
else:
print(yellowStr("WARNING: %s's release %s did not specify a "
"compatible Scipion version. Please, remove this "
"release from pypi") % (self.pipName, release))
releases['latest'] = latestCompRelease
return releases
[docs] def setRemotePluginInfo(self):
"""Sets value for the attributes that need to be obtained from pypi"""
reg = r'scipion-([\d.]*\d)'
pipData = self.getPipJsonData()
if not pipData:
return
info = pipData['info']
releases = self.getCompatiblePipReleases(pipJsonData=pipData)
self.homePage = info['home_page']
self.summary = info['summary']
self.author = info['author']
self.email = info['author_email']
self.compatibleReleases = releases
self.latestRelease = releases['latest']
[docs] def setFakedRemotePluginInfo(self):
"""Sets value for the attributes that need to be obtained from json file"""
self.homePage = self.pluginSourceUrl
self.compatibleReleases = {DEVEL_VERSION: {'upload_time': ' devel_mode'}}
self.latestRelease = DEVEL_VERSION
self.author = ' Developer mode'
# ###################### Local data funcs ############################
[docs] def setLocalPluginInfo(self):
"""Sets value for the attributes that can be obtained locally if the
plugin is installed."""
if self.isInstalled():
metadata = {}
# Take into account 2 cases here:
# A.: plugin is a proper pipmodule and is installed as such
# B.: Plugin is not yet a pipmodule but a local folder.
try:
package = pkg_resources.get_distribution(self.pipName)
keys = ['Name', 'Version', 'Summary', 'Home-page', 'Author',
'Author-email']
pattern = r'(.*): (.*)'
for line in package._get_metadata(package.PKG_INFO):
match = re.match(pattern, line)
if match:
key = match.group(1)
if key in keys:
metadata[key] = match.group(2)
keys.remove(key)
if not len(keys):
break
self.pipVersion = metadata.get('Version', "")
self.dirName = self.getDirName()
self.binVersions = self.getBinVersions()
except:
# Case B: code local but not yet a pipmodule.
pass
if not self.remote:
# only do this if we don't already have it from remote
self.homePage = metadata.get('Home-page', "")
self.summary = metadata.get('Summary', "")
self.author = metadata.get('Author', "")
self.email = metadata.get('Author-email', "")
[docs] def getPluginClass(self):
""" Tries to find the Plugin object."""
pluginModule = self._getPlugin()
if pluginModule is not None:
pluginClass = pluginModule._pluginInstance
else:
print("Warning: couldn't find Plugin for %s" % self.pipName)
print("Dirname: %s" % self.getDirName())
pluginClass = None
return pluginClass
[docs] def getInstallenv(self, envArgs=None):
"""Reads the defineBinaries function from Plugin class and returns an
Environment object with the plugin's binaries."""
if envArgs is None:
envArgs = dict()
env = Environment(**envArgs)
env.setDefault(False)
plugin = self.getPluginClass()
if plugin is not None:
try:
plugin.defineBinaries(env)
except Exception as e:
print("Couldn't get binaries definition of %s plugin: %s" % (self.name, e))
import traceback
traceback.print_exc()
return env
else:
return None
[docs] def getBinVersions(self):
"""Get list with names of binaries of this plugin"""
env = Environment()
env.setDefault(False)
defaultTargets = [target.getName() for target in env.getTargetList()]
plugin = self.getPluginClass()
if plugin is not None:
try:
plugin.defineBinaries(env)
except Exception as e:
print(
redStr("Error retrieving plugin %s binaries: " % self.name), e)
binVersions = [target.getName() for target in env.getTargetList() if target.getName() not in defaultTargets]
return binVersions
[docs] def getDirName(self):
"""Get the name of the folder that contains the plugin code
itself (e.g. to import the _plugin object.)"""
# top level file is a file included in all pip packages that contains
# the name of the package's top level directory
try:
return pkg_resources.get_distribution(self.pipName).get_metadata('top_level.txt').strip()
except Exception as e:
return None
[docs] def printBinInfoStr(self):
"""Returns string with info of binaries installed to print in console
with flag --help"""
try:
env = self.getInstallenv()
return env.printHelp().split('\n', 1)[1]
except IndexError as noBins:
return " ".rjust(14) + "No binaries information defined.\n"
except Exception as e:
return " ".rjust(14) + "Error getting binaries info: %s" % \
str(e) + "\n"
[docs] def getPluginName(self):
"""Return the plugin name"""
return self.name
[docs] def getPipName(self):
"""Return the plugin pip name"""
return self.pipName
[docs] def getPipVersion(self):
"""Return the plugin pip version"""
return self.pipVersion
[docs] def getSourceUrl(self):
"""Return the plugin source url"""
return self.pluginSourceUrl
[docs] def getHomePage(self):
"""Return the plugin Home page"""
return self.homePage
[docs] def getSummary(self):
"""Return the plugin summary"""
return self.summary
[docs] def getAuthor(self):
"""Return the plugin author"""
return self.author
[docs] def getReleaseDate(self, release):
"""Return the uploaded date from the release"""
return self.compatibleReleases[release]['upload_time']
[docs] def getLatestRelease(self):
"""Get the plugin latest release"""
return self.latestRelease
[docs]class PluginRepository(object):
def __init__(self, repoUrl=REPOSITORY_URL):
self.repoUrl = repoUrl
self.plugins = None
[docs] @staticmethod
def getBinToPluginDict():
localPlugins = Domain.getPlugins()
binToPluginDict = {}
for p, pobj in localPlugins.items():
pinfo = PluginInfo(name=p, plugin=pobj, remote=False)
pbins = pinfo.getBinVersions()
binToPluginDict.update({k: p for k in pbins})
pbinsNoVersion = set([b.split('-', 1)[0] for b in pbins])
binToPluginDict.update({k: p for k in pbinsNoVersion})
return binToPluginDict
[docs] def getPlugins(self, pluginList=None, getPipData=False):
"""Reads available plugins from self.repoUrl and returns a dict with
PluginInfo objects. Params:
- pluginList: A list with specific plugin pip-names we want to get.
- getPipData: If true, each PluginInfo object will try to get the data
of the plugin from pypi."""
pluginsJson = {}
if self.plugins is None:
self.plugins = {}
if os.path.isfile(self.repoUrl):
with open(self.repoUrl) as f:
pluginsJson = json.load(f)
getPipData = False
else:
try:
r = requests.get(self.repoUrl)
getPipData = True
except requests.ConnectionError as e:
print("\nWARNING: Error while trying to connect with a server:\n"
" > Please, check your internet connection!\n")
print(e)
return self.plugins
if r.ok:
pluginsJson = r.json()
else:
print("WARNING: Can't get Scipion's plugin list, the plugin "
"repository is not available")
return self.plugins
availablePlugins = pluginsJson.keys()
if pluginList is None:
targetPlugins = availablePlugins
else:
targetPlugins = set(availablePlugins).intersection(set(pluginList))
if len(targetPlugins) < len(pluginList):
wrongPluginNames = set(pluginList) - set(availablePlugins)
print("WARNING - The following plugins didn't match available "
"plugin names:")
print(" ".join(wrongPluginNames))
print("You can see the list of available plugins with the following command:\n"
"scipion installp --help")
for pluginName in targetPlugins:
pluginsJson[pluginName].update(remote=getPipData)
pluginInfo = PluginInfo(**pluginsJson[pluginName])
if pluginInfo.getLatestRelease() != NULL_VERSION:
self.plugins[pluginName] = pluginInfo
return self.plugins
[docs] def printPluginInfoStr(self, withBins=False, withUpdates=False):
"""Returns string to print in console which plugins are installed.
:param withBins: If true, will add binary info for the plugins installed
:param withUpdates: If true, will check if the installed plugins have new releases.
:return A string with the plugin information summarized"""
def ansi(n):
"""Return function that escapes text with ANSI color n."""
return lambda txt: '\x1b[%dm%s\x1b[0m' % (n, txt)
black, red, green, yellow, blue, magenta, cyan, white = map(ansi,
range(30, 38))
printStr = ""
pluginDict = self.getPlugins(getPipData=withUpdates)
if pluginDict:
withBinsStr = "Installed plugins and their %s" % green("binaries") \
if withBins else "Available plugins"
printStr += ("%s: "
"([ ] not installed, [X] seems already installed)\n\n" % withBinsStr)
keys = sorted(pluginDict.keys())
for name in keys:
plugin = pluginDict[name]
if withBins and not plugin.isInstalled():
continue
printStr += "{0:30} {1:10} [{2}]".format(name,
plugin.pipVersion,
'X' if plugin.isInstalled() else ' ')
if withUpdates and plugin.isInstalled():
if plugin.latestRelease != plugin.pipVersion:
printStr += yellow('\t(%s available)' % plugin.latestRelease)
printStr += "\n"
if withBins:
printStr += green(plugin.printBinInfoStr())
else:
printStr = "List of available plugins in plugin repository inaccessible at this time."
return printStr
[docs]def installBinsDefault():
""" Returns the default behaviour for installing binaries
By default it is TRUE, define "SCIPION_DONT_INSTALL_BINARIES" to anything to deactivate binaries installation"""
return os.environ.get("SCIPION_DONT_INSTALL_BINARIES", True) == True