Mercurial Repositories > eric / file diff

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/eric6/CondaInterface/__init__.py	Sun Apr 14 15:09:21 2019 +0200
@@ -0,0 +1,135 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2019 Detlev Offenbach <detlev@die-offenbachs.de>
+#
+
+"""
+Package implementing the various conda related modules.
+"""
+
+from __future__ import unicode_literals
+try:
+    str = unicode
+except NameError:
+    pass
+
+import json
+
+from PyQt5.QtCore import QCoreApplication, QProcess
+
+import Preferences
+
+__CondaVersion = tuple()
+__CondaVersionStr = ""
+__CondaRootPrefix = ""
+__CondaUserConfig = ""
+
+__initialized = False
+
+
+def __initializeCondaInterface():
+    """
+    Private module function to (re-)initialize the conda interface.
+    """
+    global __CondaVersionStr, __CondaVersion, __CondaRootPrefix, \
+        __CondaUserConfig, __initialized
+    
+    if not __initialized:
+        exe = Preferences.getConda("CondaExecutable")
+        if not exe:
+            exe = "conda"
+        
+        proc = QProcess()
+        proc.start(exe, ["info", "--json"])
+        if not proc.waitForStarted(15000):
+            __CondaVersionStr = QCoreApplication.translate(
+                "CondaInterface",
+                '<conda not found or not configured.>')
+        else:
+            proc.waitForFinished(15000)
+            output = str(proc.readAllStandardOutput(),
+                         Preferences.getSystem("IOEncoding"),
+                         'replace').strip()
+            try:
+                jsonDict = json.loads(output)
+            except Exception:
+                __CondaVersionStr = QCoreApplication.translate(
+                    "CondaInterface",
+                    '<conda returned invalid data.>')
+                return
+            
+            __CondaVersionStr = jsonDict["conda_version"]
+            __CondaVersion = tuple(
+                int(i) for i in __CondaVersionStr.split(".")
+            )
+            __CondaRootPrefix = jsonDict["root_prefix"]
+            if "user_rc_path" in jsonDict:
+                __CondaUserConfig = jsonDict["user_rc_path"]
+            elif "rc_path" in jsonDict:
+                __CondaUserConfig = jsonDict["rc_path"]
+            
+            __initialized = True
+
+
+def condaVersion():
+    """
+    Module function to get the conda version.
+    
+    @return tuple containing the conda version
+    @rtype tuple of (int, int, int)
+    """
+    __initializeCondaInterface()
+    return __CondaVersion
+
+
+def condaVersionStr():
+    """
+    Module function to get the conda version as a string.
+    
+    @return conda version as a string
+    @rtype str
+    """
+    __initializeCondaInterface()
+    return __CondaVersionStr
+
+
+def rootPrefix():
+    """
+    Module function to get the root prefix.
+    
+    @return root prefix
+    @rtype str
+    """
+    __initializeCondaInterface()
+    return __CondaRootPrefix
+
+
+def userConfiguration():
+    """
+    Module function to get the path of the user configuration file.
+    
+    @return path of the user configuration file
+    @rtype str
+    """
+    __initializeCondaInterface()
+    return __CondaUserConfig
+
+
+def isCondaAvailable():
+    """
+    Module function to check the availability of conda.
+    
+    @return flag indicating conda availability
+    @rtype bool
+    """
+    __initializeCondaInterface()
+    return bool(__CondaVersion)
+
+
+def resetInterface():
+    """
+    Module function to reset the conda interface.
+    """
+    global __initialized
+    
+    __initialized = False