mirror of
https://github.com/ItsDrike/dotfiles.git
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112 lines
3.4 KiB
Bash
112 lines
3.4 KiB
Bash
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#!/bin/sh
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# rm_trailing_slashes(string)
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#
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# Prints a string without any trailing slashes.
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# This is used because cheat.sh doesn't play nicely with multiple slashes in
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# URLs.
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rm_trailing_slashes() {
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string="$1"
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last_char="$(printf "$string" | tail -c 1)"
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if [ "$last_char" = "/" ]; then
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echo "$(rm_trailing_slashes "${string%?}")"
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else
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echo "$string"
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fi
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}
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# pick_category(must_match, query, argument, recurse)
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#
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# Pick cheat.sh category.
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# if must_match is 1, only allow listed options to be picked.
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# if query is specified, pick sub-category of it, else pick global categories.
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# if argument is specified, optionally perform must_match check and print it.
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# if recurse is 1, if the selected option ends with /, run the function again.
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#
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# Prints the chosen category
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pick_category() {
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must_match="$1"
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query="$(rm_trailing_slashes "$2")"
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argument="$3"
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recurse="$4"
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# Query all possible options
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if [ -n "$query" ]; then
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url="cheat.sh/$query/:list"
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else
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url="cheat.sh/:list"
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fi
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selectable="$(curl -s "$url")"
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# If argument is specified, print it, optionally perform must_match check.
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if [ -n "$argument" ]; then
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if [ "$must_match" -ne 1 ] || echo "$selectable" | grep -qe "\b$1\b"; then
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selected="$argument"
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else
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echo "Invalid selection: '$argument'"
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echo "For all selections, query $url"
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exit 1
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fi
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# Select the option with fzf, optionally allow other matches if must_match isn't set.
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else
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if [ "$must_match" -ne 1 ]; then
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if [ -z "$selectable" ]; then
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header="No selections found, you can use empty query to show category help, or type a custom query."
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else
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header="Use alt-enter to enter non-listed query. You can use empty queries to show category help."
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fi
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selected="$(printf "\n$selectable" | \
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fzf --bind=alt-enter:print-query \
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--print-query \
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--prompt="cheat.sh/$query query>" \
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--header="$header"\
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)"
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else
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selected=$(printf "$selectable" | fzf --prompt="cheat.sh/$query category>")
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if [ $? -ne 0 ]; then
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echo "Invalid selection: '$selected'"
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echo "For all selections, query $url"
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exit 1
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fi
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fi
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selected=$(printf "$selected" | tail -1)
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fi
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# Replace spaces with '+' (cheat.sh resolves those as spaces)
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selected="$(echo "$selected" | tr ' ' '+')"
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# Prepend the original query, if we have one
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# Print the selected category, or subcategory with the category
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if [ -n "$query" ]; then
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result="$query/$selected"
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else
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result="$selected"
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fi
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# Recurse, if specified and the result ended with /
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if [ "$recurse" -eq 1 ]; then
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if [ "$(printf "$selected" | tail -c 1)" = "/" ]; then
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result="$(pick_category "$must_match" "$result" "$argument" 1)"
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fi
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fi
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# Print the result
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printf "$result"
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}
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# Select the cheatsheat category (language/core-util/...)
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query=$(pick_category 1 "" "$1" 0)
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# If the query isn't already complete, select a sub-category
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if ! echo "$query" | grep -qe ":"; then
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query="$(pick_category 0 "$query" "$2" 1)"
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fi
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# Construct the URL from given query and print it
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url="cheat.sh/$query"
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echo "$url"
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# Show the output of cheat.sh request
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curl -s "$url"
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