Fixed #10752. Added more advanced bash completion. Thanks, Arthur Koziel.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@11526 bcc190cf-cafb-0310-a4f2-bffc1f526a37

AUTHORS

@@ -241,6 +241,7 @@ answer newbie questions, and generally made Django that much better:
     Igor Kolar <ike@email.si>
     Gasper Koren
     Martin Kosír <martin@martinkosir.net>
+    Arthur Koziel <http://arthurkoziel.com>
     Meir Kriheli <http://mksoft.co.il/>
     Bruce Kroeze <http://coderseye.com/>
     krzysiek.pawlik@silvermedia.pl

django/core/management/__init__.py

@@ -261,6 +261,82 @@ class ManagementUtility(object):
             sys.exit(1)
         return klass
 
+    def autocomplete(self):
+        """
+        Output completion suggestions for BASH.
+
+        The output of this function is passed to BASH's `COMREPLY` variable and
+        treated as completion suggestions. `COMREPLY` expects a space
+        separated string as the result.
+
+        The `COMP_WORDS` and `COMP_CWORD` BASH environment variables are used
+        to get information about the cli input. Please refer to the BASH
+        man-page for more information about this variables.
+
+        Subcommand options are saved as pairs. A pair consists of
+        the long option string (e.g. '--exclude') and a boolean
+        value indicating if the option requires arguments. When printing to
+        stdout, a equal sign is appended to options which require arguments.
+
+        Note: If debugging this function, it is recommended to write the debug
+        output in a separate file. Otherwise the debug output will be treated
+        and formatted as potential completion suggestions.
+        """
+        # Don't complete if user hasn't sourced bash_completion file.
+        if not os.environ.has_key('DJANGO_AUTO_COMPLETE'):
+            return
+
+        cwords = os.environ['COMP_WORDS'].split()[1:]
+        cword = int(os.environ['COMP_CWORD'])
+
+        try:
+            curr = cwords[cword-1]
+        except IndexError:
+            curr = ''
+
+        subcommands = get_commands().keys() + ['help']
+        options = [('--help', None)]
+
+        # subcommand
+        if cword == 1:
+            print ' '.join(filter(lambda x: x.startswith(curr), subcommands))
+        # subcommand options
+        # special case: the 'help' subcommand has no options
+        elif cwords[0] in subcommands and cwords[0] != 'help':
+            subcommand_cls = self.fetch_command(cwords[0])
+            # special case: 'runfcgi' stores additional options as
+            # 'key=value' pairs
+            if cwords[0] == 'runfcgi':
+                from django.core.servers.fastcgi import FASTCGI_OPTIONS
+                options += [(k, 1) for k in FASTCGI_OPTIONS]
+            # special case: add the names of installed apps to options
+            elif cwords[0] in ('dumpdata', 'reset', 'sql', 'sqlall',
+                               'sqlclear', 'sqlcustom', 'sqlindexes',
+                               'sqlreset', 'sqlsequencereset', 'test'):
+                try:
+                    from django.conf import settings
+                    # Get the last part of the dotted path as the app name.
+                    options += [(a.split('.')[-1], 0) for a in settings.INSTALLED_APPS]
+                except ImportError:
+                    # Fail silently if DJANGO_SETTINGS_MODULE isn't set. The
+                    # user will find out once they execute the command.
+                    pass
+            options += [(s_opt.get_opt_string(), s_opt.nargs) for s_opt in
+                        subcommand_cls.option_list]
+            # filter out previously specified options from available options
+            prev_opts = [x.split('=')[0] for x in cwords[1:cword-1]]
+            options = filter(lambda (x, v): x not in prev_opts, options)
+
+            # filter options by current input
+            options = [(k, v) for k, v in options if k.startswith(curr)]
+            for option in options:
+                opt_label = option[0]
+                # append '=' to options which require args
+                if option[1]:
+                    opt_label += '='
+                print opt_label
+        sys.exit(1)
+
     def execute(self):
         """
         Given the command-line arguments, this figures out which subcommand is
@@ -272,6 +348,7 @@ class ManagementUtility(object):
         parser = LaxOptionParser(usage="%prog subcommand [options] [args]",
                                  version=get_version(),
                                  option_list=BaseCommand.option_list)
+        self.autocomplete()
         try:
             options, args = parser.parse_args(self.argv)
             handle_default_options(options)

extras/django_bash_completion

@@ -31,136 +31,10 @@
 #
 # To uninstall, just remove the line from your .bash_profile and .bashrc.
 
-# Enable extended pattern matching operators.
-shopt -s extglob
-
 _django_completion()
 {
-    local cur prev opts actions action_shell_opts action_runfcgi_opts
-    COMPREPLY=()
-    cur="${COMP_WORDS[COMP_CWORD]}"
-    prev="${COMP_WORDS[COMP_CWORD-1]}"
-
-    # Standalone options
-    opts="--help --settings --pythonpath --noinput --noreload --format --indent --verbosity --adminmedia --version --locale --domain"
-    # Actions
-    actions="createcachetable createsuperuser compilemessages \
-             dbshell diffsettings dumpdata flush inspectdb loaddata \
-             makemessages reset runfcgi runserver shell sql sqlall sqlclear \
-             sqlcustom sqlflush sqlindexes sqlreset sqlsequencereset startapp \
-             startproject syncdb test validate"
-    # Action's options
-    action_shell_opts="--plain"
-    action_runfcgi_opts="host port socket method maxspare minspare maxchildren daemonize pidfile workdir"
-
-    if [[ # django-admin.py, django-admin, ./manage, manage.py
-          ( ${COMP_CWORD} -eq 1 &&
-            ( ${COMP_WORDS[0]} == django-admin.py ||
-              ${COMP_WORDS[0]} == django-admin ||
-              ${COMP_WORDS[0]} == ./manage.py ||
-              ${COMP_WORDS[0]} == manage.py ) )
-          ||
-          # python manage.py, /some/path/python manage.py (if manage.py exists)
-          ( ${COMP_CWORD} -eq 2 &&
-            ( $( basename -- ${COMP_WORDS[0]} ) == python?([1-9]\.[0-9]) ) &&
-            ( $( basename -- ${COMP_WORDS[1]} ) == manage.py) &&
-            ( -r ${COMP_WORDS[1]} ) ) 
-          ||
-          ( ${COMP_CWORD} -eq 2 &&
-            ( $( basename -- ${COMP_WORDS[0]} ) == python?([1-9]\.[0-9]) ) &&
-            ( $( basename -- ${COMP_WORDS[1]} ) == django-admin.py) &&
-            ( -r ${COMP_WORDS[1]} ) ) 
-          ||
-          ( ${COMP_CWORD} -eq 2 &&
-            ( $( basename -- ${COMP_WORDS[0]} ) == python?([1-9]\.[0-9]) ) &&
-            ( $( basename -- ${COMP_WORDS[1]} ) == django-admin) &&
-            ( -r ${COMP_WORDS[1]} ) ) ]] ; then
-
-        case ${cur} in
-            -*)
-                COMPREPLY=( $(compgen -W "${opts}" -- ${cur}) )
-                action=$COMPREPLY
-                return 0
-                ;;
-            *)
-                COMPREPLY=( $(compgen -W "${actions}" -- ${cur}) )
-                action=$COMPREPLY
-                return 0
-                ;;
-        esac
-    else
-        case ${prev} in
-            dumpdata|reset| \
-            sql|sqlall|sqlclear|sqlcustom|sqlindexes| \
-            sqlreset|sqlsequencereset|test)
-                # App completion
-                settings=""
-                # If settings.py in the PWD, use that
-                if [ -e settings.py ] ; then
-                    settings="$PWD/settings.py"
-                else
-                    # Use the ENV variable if it is set
-                    if [ $DJANGO_SETTINGS_MODULE ] ; then
-                        settings=$DJANGO_SETTINGS_MODULE
-                    fi
-                fi
-                # Couldn't find settings so return nothing
-                if [ -z $settings ] ; then
-                    COMPREPLY=()
-                # Otherwise inspect settings.py file
-                else
-                    apps=`sed -n "/INSTALLED_APPS = (/,/)/p" $settings | \
-                          grep -v "django.contrib" | 
-                          sed -n "s/^[ ]*'\(.*\.\)*\(.*\)'.*$/\2 /pg" | \
-                          tr -d "\n"`
-                    COMPREPLY=( $(compgen -W "${apps}" -- ${cur}) )
-                fi
-                return 0
-                ;;
-
-            createcachetable|cleanup|compilemessages|dbshell| \
-            diffsettings|inspectdb|makemessages| \
-            runserver|startapp|startproject|syncdb| \
-            validate)
-                COMPREPLY=()
-                return 0
-                ;;
-            shell)
-                COMPREPLY=( $(compgen -W "$action_shell_opts" -- ${cur}) )
-                return 0
-                ;;
-            runfcgi)
-                COMPREPLY=( $(compgen -W "$action_runfcgi_opts" -- ${cur}) )
-                return 0
-                ;;
-            host*|port*|socket*|method*|maxspare*|minspare*|maxchildren*|daemonize*|pidfile*|workdir*)
-                if [ "$action"  == "runfcgi" ] ; then
-                    COMPREPLY=( $(compgen -W "$action_runfcgi_opts" -- ${cur}) )
-                    return 0
-                fi
-                return 0
-                ;;
-            *)
-                #COMPREPLY=( $(compgen -W "auth core" -- ${cur}) )
-                COMPREPLY=()
-                return 0
-                ;;
-        esac
-    fi
+    COMPREPLY=( $( COMP_WORDS="${COMP_WORDS[*]}" \
+                   COMP_CWORD=$COMP_CWORD \
+	               DJANGO_AUTO_COMPLETE=1 $1 ) )
 }
-
-complete -F _django_completion django-admin.py manage.py django-admin
-
-# Support for multiple interpreters.
-unset pythons
-if command -v whereis &>/dev/null; then
-    python_interpreters=$(whereis python | cut -d " " -f 2-) 
-    for python in $python_interpreters; do
-        pythons="${pythons} $(basename -- $python)"
-    done
-    pythons=$(echo $pythons | tr " " "\n" | sort -u | tr "\n" " ")
-else
-    pythons=python    
-fi
-
-complete -F _django_completion -o default $pythons
+complete -F _django_completion -o default django-admin.py manage.py