gopinath-langote#96 Preliminary command completion

onebuild/1build_completion.sh

@@ -0,0 +1,7 @@
+#!/usr/bin/bash
+_1build_completions()
+{
+    COMPREPLY=($(compgen -W "$(1build -lr | sed 's/\\t//')" -- "${COMP_WORDS[COMP_CWORD]}"))
+}
+
+complete -F _1build_completions 1build

onebuild/action_to_command_lookup.py

@@ -2,6 +2,7 @@
 from onebuild.help_command import HelpCommand
 from onebuild.init_command import InitCommand
 from onebuild.list_command import ListCommand
+from onebuild.list_raw_command import ListRawCommand
 from onebuild.perform_command import PerformCommand
 from onebuild.version_command import VersionCommand
 
@@ -13,6 +14,7 @@ def __init__(self):
             PredefinedActions.HELP: HelpCommand(),
             PredefinedActions.INIT: InitCommand(),
             PredefinedActions.LIST: ListCommand(),
+            PredefinedActions.LIST_RAW: ListRawCommand(),
             PredefinedActions.VERSION: VersionCommand(),
             PredefinedActions.PERFORM: PerformCommand()
         })

onebuild/input_parser.py

@@ -24,6 +24,12 @@ def argument_parser():
         default=False,
         help="Show all available commands - from `1build.yaml` file"
     )
+    parser.add_argument(
+        '-lr', '--listraw',
+        action='store_true',
+        default=False,
+        help="Show all available command names - from `1build.yaml` file"
+    )
     parser.add_argument(
         '-v', '--version',
         dest='version',
@@ -50,6 +56,8 @@ def command_to_run(arg_parser, arguments):
         return PredefinedActions.INIT
     if args.list:
         return PredefinedActions.LIST
+    if args.listraw:
+        return PredefinedActions.LIST_RAW
     if len(args.command) == 0:
         return PredefinedActions.HELP
 

onebuild/list_raw_command.py

@@ -0,0 +1,10 @@
+from onebuild.command import Command
+from onebuild.config_parser import parse_project_config
+from onebuild.utils import config_string
+
+
+class ListRawCommand(Command):
+
+    def execute(self, arg_parser, arguments, build_file_name, command_name):
+        project = parse_project_config(build_file_name)
+        print(project.get_command_names())

onebuild/predefined_actions.py

@@ -2,5 +2,6 @@ class PredefinedActions:
     VERSION = "ONEBUILD_VERSION"
     HELP = "ONEBUILD_HELP"
     LIST = "ONEBUILD_LIST"
+    LIST_RAW = "ONEBUILD_LIST_RAW"
     INIT = "ONEBUILD_INIT"
     PERFORM = "ONEBUILD_PERFROM"

onebuild/project.py

@@ -42,3 +42,6 @@ def available_commands(self):
     def __str__(self):
         return "project: " + self.name + "\ncommands:\n" + \
                self.available_commands()
+
+    def get_command_names(self):
+        return "\n".join(map(lambda command: command.name, self.commands))