rewrite zsh completion generation

This commit is contained in:
Paul Seyfert 2021-03-06 00:06:35 +01:00
parent b8b622fbeb
commit b3ab97c05e
2 changed files with 36 additions and 39 deletions

View File

@ -3,26 +3,8 @@
__youtube_dl() {
local curcontext="$curcontext" fileopts diropts cur prev
typeset -A opt_args
fileopts="{{fileopts}}"
diropts="{{diropts}}"
cur=$words[CURRENT]
case $cur in
:)
_arguments '*: :(::ytfavorites ::ytrecommended ::ytsubscriptions ::ytwatchlater ::ythistory)'
;;
*)
prev=$words[CURRENT-1]
if [[ ${prev} =~ ${fileopts} ]]; then
_path_files
elif [[ ${prev} =~ ${diropts} ]]; then
_path_files -/
elif [[ ${prev} == "--recode-video" ]]; then
_arguments '*: :(mp4 flv ogg webm mkv)'
else
_arguments '*: :({{flags}})'
fi
;;
esac
_arguments {{args}} \
'*: :(::ytfavorites ::ytrecommended ::ytsubscriptions ::ytwatchlater ::ythistory)'
}
__youtube_dl

View File

@ -4,6 +4,7 @@ from __future__ import unicode_literals
import os
from os.path import dirname as dirn
import sys
import optparse
sys.path.insert(0, dirn(dirn((os.path.abspath(__file__)))))
import youtube_dl
@ -15,31 +16,45 @@ ZSH_COMPLETION_TEMPLATE = "devscripts/zsh-completion.in"
def build_completion(opt_parser):
opts = [opt for group in opt_parser.option_groups
for opt in group.option_list]
opts_file = [opt for opt in opts if opt.metavar == "FILE"]
opts_dir = [opt for opt in opts if opt.metavar == "DIR"]
fileopts = []
for opt in opts_file:
# escaping is hard:
# - help may contain colons
# - metavar must have colons : escaped
# - single quotes must be removed
# - help must have square brackets [] escaped
def metaparse(opt):
if "--recode-video" == opt.get_opt_string():
return ":{}:(mp4 flv ogg webm mkv)".format(opt.metavar)
if opt.metavar is None:
return ""
if opt.metavar == "FILE":
return ":FILE:_files"
if opt.metavar == "DIR":
return ":DIR:_directories"
else:
return ":{}:".format(opt.metavar.replace(":", "\\:"))
def helpescape(opthelp):
if opthelp == optparse.SUPPRESS_HELP:
return ""
return "[{}]".format(opthelp.replace("'", "\"").replace("]", "\\]").replace("[", "\\["))
def optionexclude(opt):
# When an argument has a long and short version, the arguments entry shall be
# _arguments \
# "(-t --thing)"{-t,--thing}"[do things]:WHAT_THING:"
# i.e. in parentheses with space the explanation of redundancy and in curly braces
# regular shell expansion to create two mostly identical entries.
if opt._short_opts:
fileopts.extend(opt._short_opts)
if opt._long_opts:
fileopts.extend(opt._long_opts)
return "({0} {1})'{{{0},{1}}}'".format(opt._short_opts[0], opt.get_opt_string())
return "{}".format(opt.get_opt_string())
diropts = []
for opt in opts_dir:
if opt._short_opts:
diropts.extend(opt._short_opts)
if opt._long_opts:
diropts.extend(opt._long_opts)
flags = [opt.get_opt_string() for opt in opts]
mytest = ["'{}{}{}'".format(optionexclude(opt), helpescape(opt.help), metaparse(opt)) for opt in opts]
with open(ZSH_COMPLETION_TEMPLATE) as f:
template = f.read()
template = template.replace("{{fileopts}}", "|".join(fileopts))
template = template.replace("{{diropts}}", "|".join(diropts))
template = template.replace("{{flags}}", " ".join(flags))
template = template.replace("{{args}}", " \\\n ".join(mytest))
with open(ZSH_COMPLETION_FILE, "w") as f:
f.write(template)