new method ConsoleApplication.acquire_input() to read stdin friendly

weboob/applications/boobmsg/boobmsg.py

@@ -230,12 +230,7 @@ class Boobmsg(ReplApplication):
         """
         receivers, text = self.parse_command_args(line, 2, 1)
         if text is None:
-            if self.interactive:
-                print 'Reading message content from stdin... Type ctrl-D ' \
-                      'from an empty line to post message.'
-            text = sys.stdin.read()
-            if sys.stdin.encoding:
-                text = text.decode(sys.stdin.encoding)
+            text = self.acquire_input()
 
         if self.options.skip_empty and not text.strip():
             return

weboob/applications/pastoob/pastoob.py

@@ -77,7 +77,7 @@ class Pastoob(ReplApplication):
         The filename can be '-' for reading standard input (pipe).
         """
         if not filename or filename == '-':
-            contents = sys.stdin.read().decode(sys.stdin.encoding or locale.getpreferredencoding())
+            contents = self.acquire_input()
         else:
             try:
                 with codecs.open(filename, encoding=locale.getpreferredencoding()) as fp:

weboob/applications/weboobcfg/weboobcfg.py

@@ -107,7 +107,7 @@ class WeboobCfg(ReplApplication):
             print >>sys.stderr, 'Error: backend "%s" does not support accounts management' % backend_name
             return 1
 
-        mail = sys.stdin.read()
+        mail = self.acquire_input()
         if not backend.confirm_account(mail):
             print >>sys.stderr, 'Error: Unable to confirm account creation'
             return 1

weboob/tools/application/console.py

@@ -23,6 +23,7 @@ import getpass
 import logging
 import sys
 import os
+import locale
 
 from weboob.capabilities.account import ICapAccount, Account, AccountRegisterError
 from weboob.core.backendscfg import BackendAlreadyExists
@@ -186,7 +187,7 @@ class ConsoleApplication(BaseApplication):
         backends = [(b.name, b) for b in self.enabled_backends]
         if unique_backend and not backend_name:
             if len(backends) == 1:
-                backend_name = backends[0]
+                backend_name = backends[0][0]
             else:
                 raise BackendNotGiven(_id, backends)
         if backend_name is not None and not backend_name in dict(backends):
@@ -413,6 +414,13 @@ class ConsoleApplication(BaseApplication):
 
         return v.get()
 
+    def acquire_input(self):
+        if sys.stdin.isatty():
+            print 'Reading content from stdin... Type ctrl-D ' \
+                  'from an empty line to stop.'
+        text = sys.stdin.read()
+        return text.decode(sys.stdin.encoding or locale.getpreferredencoding())
+
     def bcall_error_handler(self, backend, error, backtrace):
         """
         Handler for an exception inside the CallErrors exception.