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# JSON Tools
# Adds command line aliases useful for dealing with JSON
# Check that user-defined method is installed
if [[ -n "$JSONTOOLS_METHOD" ]]; then
(( $+commands[$JSONTOOLS_METHOD] )) || unset JSONTOOLS_METHOD
fi
# If method undefined, find the first one that is installed
if [[ -z "$JSONTOOLS_METHOD" ]]; then
for JSONTOOLS_METHOD in node python ruby; do
# If method found, break out of loop
(( $+commands[$JSONTOOLS_METHOD] )) && break
# Otherwise unset the variable
unset JSONTOOLS_METHOD
done
# If no methods were found, exit the plugin
[[ -n "$JSONTOOLS_METHOD" ]] || return 1
fi
# Define json tools for each method
case "$JSONTOOLS_METHOD" in
node)
# node doesn't make it easy to deal with stdin, so we pass it as an argument with xargs -0
function pp_json() {
xargs -0 node -e 'console.log(JSON.stringify(JSON.parse(process.argv[1]), null, 4));'
}
function is_json() {
xargs -0 node -e '
try {
json = JSON.parse(process.argv[1]);
console.log("true");
process.exit(0);
} catch (e) {
console.log("false");
process.exit(1);
}
'
}
function urlencode_json() {
xargs -0 node -e "console.log(encodeURIComponent(process.argv[1]))"
}
function urldecode_json() {
xargs -0 node -e "console.log(decodeURIComponent(process.argv[1]))"
}
;;
python)
function pp_json() {
python -c 'import sys; del sys.path[0]; import runpy; runpy._run_module_as_main("json.tool")'
}
function is_json() {
python -c '
import sys; del sys.path[0];
import json
try:
json.loads(sys.stdin.read())
print("true"); sys.exit(0)
except ValueError:
print("false"); sys.exit(1)
'
}
function urlencode_json() {
python -c '
import sys; del sys.path[0];
from urllib.parse import quote_plus
print(quote_plus(sys.stdin.read()))
'
}
function urldecode_json() {
python -c '
import sys; del sys.path[0];
from urllib.parse import unquote_plus
print(unquote_plus(sys.stdin.read()))
'
}
;;
ruby)
function pp_json() {
ruby -e '
require "json"
require "yaml"
puts JSON.parse(STDIN.read).to_yaml
'
}
function is_json() {
ruby -e '
require "json"
begin
puts !!JSON.parse(STDIN.read); exit(0)
rescue JSON::ParserError
puts false; exit(1)
end
'
}
function urlencode_json() {
ruby -e 'require "cgi"; puts CGI.escape(STDIN.read)'
}
function urldecode_json() {
ruby -e 'require "cgi"; puts CGI.unescape(STDIN.read)'
}
;;
esac
unset JSONTOOLS_METHOD
## Add NDJSON support
function {pp,is,urlencode,urldecode}_ndjson() {
local json jsonfunc="${0//ndjson/json}"
while read -r json; do
$jsonfunc <<< "$json"
done
}
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