config.py: Fixes package version checking regression

Previously webapp-config would not do any sanity checks when
setting the package version. After adding a sanity check in 1.54
I made the mistake of not being flexible enough and this caused
a regression that prevented web apps with versions such as
"20140929d"[1] to be installed. This commit fixes that while still
allowing for some sanity checking.

[1]: https://github.com/gentoo/webapp-config/issues/2

1 files changed, 12 insertions, 9 deletions

diff --git a/WebappConfig/config.py b/WebappConfig/config.py
index 6c915c3..3a176a0 100644
--- a/WebappConfig/config.py
+++ b/WebappConfig/config.py
@@ -996,17 +996,20 @@ class Config:
                     OUT.die('Invalid package name')
 
                 if len(args) > 1:
-                    argsvr = args[1].split('.')
-                    if len(argsvr) == 1:
-                        OUT.die('Invalid package version: %(pvr)s'
+                    pvr = args[1]
+                    has_int = False # A package version should have at least one
+                                    # numerical value, but we want to allow for
+                                    # the flexibility of having any alphanumeric
+                                    # value while checking to make sure it's sane.
+
+                    for char in pvr:
+                        if char.isdigit():
+                            has_int = True
+
+                    if not has_int:
+                        OUT.die('Invalid package version: "%(pvr)s"'
                                 % {'pvr': args[1]})
 
-                    pvr = ''
-                    for i in range(0, len(argsvr)):
-                        if not i == len(argsvr) - 1:
-                            pvr += argsvr[i] + '.'
-                        else:
-                            pvr += argsvr[i]
                     self.config.set('USER', 'pvr', pvr)
 
                 if (not options['dir'] and