[equo] warn user if equo/entropy version mismatch

client/equo.py

@@ -24,8 +24,8 @@ from entropy.exceptions import SystemDatabaseError, OnlineMirrorError, \
     SPMError, IncorrectParameter
 from entropy.output import red, darkred, darkgreen, TextInterface, \
     print_generic, print_error, print_warning, readtext, nocolor, \
-    is_stdout_a_tty
-from text_tools import print_menu, print_bascomp
+    is_stdout_a_tty, bold, purple, blue
+from text_tools import print_menu, print_bascomp, read_equo_release
 from entropy.const import etpConst, etpUi, const_convert_to_rawstring
 import entropy.tools
 try:
@@ -762,7 +762,8 @@ if (not options) or ("--help" in options):
 
 # print version
 if options[0] == "--version":
-    print_generic("equo: "+etpConst['entropyversion'])
+    print_generic("entropy: "+etpConst['entropyversion'])
+    print_generic("equo: "+read_equo_release())
     raise SystemExit(0)
 elif options[0] == "--info":
     import text_rescue
@@ -923,10 +924,23 @@ def install_exception_handler():
 def uninstall_exception_handler():
     sys.excepthook = sys.__excepthook__
 
-
+def warn_version_mismatch():
+    equo_ver = read_equo_release()
+    entropy_ver = etpConst['entropyversion']
+    if equo_ver != entropy_ver:
+        print_warning("")
+        print_warning("%s: %s" % (
+            bold(_("Entropy/Equo version mismatch")),
+            purple(_("it could make your system explode!")),))
+        print_warning("(%s [equo] & %s [entropy])" % (
+            blue(equo_ver),
+            blue(entropy_ver),))
+        print_warning("")
 
 def main():
 
+    warn_version_mismatch()
+
     install_exception_handler()
 
     rc = -10

client/text_tools.py

@@ -251,4 +251,25 @@ def enlightenatom(atom):
         rev = '-%s' % (rev,)
     return "%s%s%s%s%s%s%s" % (purple(operator), teal(cat + "/"),
         darkgreen(name), purple("-"+pv), purple(rev), brown(entropy_tag),
-        teal(entropy_rev),)
+        teal(entropy_rev),)
+
+def read_equo_release():
+    """
+    Read Equo release.
+
+    @rtype: None
+    @return: None
+    """
+    # handle Entropy Version
+    revision_file = "../client/revision"
+    if not os.path.isfile(revision_file):
+        revision_file = os.path.join(etpConst['installdir'],
+            'client/revision')
+    if os.path.isfile(revision_file) and \
+        os.access(revision_file, os.R_OK):
+
+        with open(revision_file, "r") as rev_f:
+            myrev = rev_f.readline().strip()
+            return myrev
+
+    return "0"