2018-11-04 22:29:37 +05:30

74 lines
2.5 KiB
Ruby

#: * `desc` <formula>:
#: Display <formula>'s name and one-line description.
#:
#: * `desc` [`--search`|`--name`|`--description`] (<text>|`/`<text>`/`):
#: Search both name and description (`--search` or `-s`), just the names
#: (`--name` or `-n`), or just the descriptions (`--description` or `-d`) for
#: <text>. If <text> is flanked by slashes, it is interpreted as a regular
#: expression. Formula descriptions are cached; the cache is created on the
#: first search, making that search slower than subsequent ones.
require "descriptions"
require "search"
require "description_cache_store"
require "cli_parser"
module Homebrew
module_function
extend Search
def desc_args
Homebrew::CLI::Parser.new do
usage_banner <<~EOS
`desc` [<options>] (<text>|`/`<text>`/`|<formula>)
Display <formula>'s name and one-line description.
Formula descriptions are cached; the cache is created on the
first search, making that search slower than subsequent ones.
EOS
flag "-s", "--search=",
description: "Search both name and description for provided <text>. If <text> is flanked by "\
"slashes, it is interpreted as a regular expression."
flag "-n", "--name=",
description: "Search just the names for provided <text>. If <text> is flanked by slashes, it is "\
"interpreted as a regular expression."
flag "-d", "--description=",
description: "Search just the descriptions for provided <text>. If <text> is flanked by slashes, "\
"it is interpreted as a regular expression."
switch :verbose
end
end
def desc
desc_args.parse
search_type = []
search_type << :either if args.search
search_type << :name if args.name
search_type << :desc if args.description
if search_type.size > 1
odie "Pick one, and only one, of -s/--search, -n/--name, or -d/--description."
elsif search_type.present? && ARGV.named.empty?
odie "You must provide a search term."
end
results = if search_type.empty?
raise FormulaUnspecifiedError if ARGV.named.empty?
desc = {}
ARGV.formulae.each { |f| desc[f.full_name] = f.desc }
Descriptions.new(desc)
else
arg = ARGV.named.join(" ")
string_or_regex = query_regexp(arg)
CacheStoreDatabase.use(:descriptions) do |db|
cache_store = DescriptionCacheStore.new(db)
Descriptions.search(string_or_regex, search_type.first, cache_store)
end
end
results.print
end
end