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start work on conditional file completion

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Isaac 2023-05-04 19:50:49 -07:00
parent 28efc85660
commit f12a10d888
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GPG key ID: E69FB5A841448A48
1 changed files with 16 additions and 9 deletions
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borgmatic/commands/completion.py
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@ -1,5 +1,6 @@
import shlex import shlex
from argparse import Action from argparse import Action
from textwrap import dedent
from borgmatic.commands import arguments from borgmatic.commands import arguments
@ -66,14 +67,20 @@ def bash_completion():
) )
def build_fish_flags(action: Action): def conditionally_emit_file_completion(action: Action):
''' '''
Given an argparse.Action instance, return a string containing the fish flags for that action. Given an argparse.Action instance, return a completion invocation that forces file completion
if the action takes a file argument and was the last action on the command line.
Otherwise, return an empty string.
''' '''
if action.metavar and action.metavar == 'PATH' or action.metavar == 'FILENAME': if not action.metavar:
return '-r -F' return ''
else:
return '-f' args = ' '.join(action.option_strings)
return dedent(f'''
complete -c borgmatic -a {args} -Fr -n "__borgmatic_last_arg {args}"''')
def fish_completion(): def fish_completion():
@ -105,18 +112,18 @@ def fish_completion():
+ (f'''set --local subparser_condition "not __fish_seen_subcommand_from {all_subparsers}"''',) + (f'''set --local subparser_condition "not __fish_seen_subcommand_from {all_subparsers}"''',)
+ ('\n# subparser completions',) + ('\n# subparser completions',)
+ tuple( + tuple(
f'''complete -c borgmatic -n "$subparser_condition" -a '{action_name}' -d {shlex.quote(subparser.description)} -f''' f'''complete -c borgmatic -f -n "$subparser_condition" -a '{action_name}' -d {shlex.quote(subparser.description)}'''
for action_name, subparser in subparsers.choices.items() for action_name, subparser in subparsers.choices.items()
) )
+ ('\n# global flags',) + ('\n# global flags',)
+ tuple( + tuple(
f'''complete -c borgmatic -a '{' '.join(action.option_strings)}' -d {shlex.quote(action.help)} {build_fish_flags(action)}''' f'''complete -c borgmatic -f -a '{' '.join(action.option_strings)}' -d {shlex.quote(action.help)}{conditionally_emit_file_completion(action)}'''
for action in top_level_parser._actions for action in top_level_parser._actions
if len(action.option_strings) > 0 if len(action.option_strings) > 0
) )
+ ('\n# subparser flags',) + ('\n# subparser flags',)
+ tuple( + tuple(
f'''complete -c borgmatic -a '{' '.join(action.option_strings)}' -d {shlex.quote(action.help)} -n "__fish_seen_subcommand_from {action_name}" {build_fish_flags(action)}''' f'''complete -c borgmatic -f -a '{' '.join(action.option_strings)}' -d {shlex.quote(action.help)} -n "__fish_seen_subcommand_from {action_name}"{conditionally_emit_file_completion(action)}'''
for action_name, subparser in subparsers.choices.items() for action_name, subparser in subparsers.choices.items()
for action in subparser._actions for action in subparser._actions
) )