jsonc-cli

Read and modify JSONC documents (JSON with comments). A CLI front-end for the jsonc-parser npm package.

Installation

npm install -g jsonc-cli

Usage

jsonc <cmd> [args]

Commands:
  jsonc modify           Modify a JSONC document from stdin. Formatting options
                         are only applied to the injected JSON
  jsonc format           Format a JSONC document from stdin
  jsonc read [JSONPath]  Prints the JSON value at the given path in a JSONC
                         document from stdin

Options:
  --version  Show version number                                       [boolean]
  --help     Show help                                                 [boolean]

Examples

Print a value

echo '{"animal":"dog"}' | jsonc read '["animal"]' -r

will print dog

To print without newline add -n

Format document

echo '{"animal":"dog" // with some comments\n}' | jsonc format

will print

{
  "animal": "dog" // with some comments
}

Modify document

echo '{"animal":"dog"}' | jsonc modify -p '["animal"]' -v '"cat"'

will print

{"animal":"cat"}

Write to file

echo '{"animal":"dog"}' | jsonc read '["animal"]' -r -f output.txt
cat output.txt # dog

Modify a file

It is important to add the -n when you modify to prevent additional trailing new lines to be added

cat .vscode/settings.json | jsonc modify -n -p '["typescript.tsdk"]' -v '"app/node_modules/typescript/lib"' -f .vscode/settings.json