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jpt (JSON Power Tool)

Change Log

v1.0.9

  • Fixed issue with the JSONPath engine that caused object members named values with an array as the value, to return malformed paths ending in a [NaN]

v1.0.8

  • OPTIND and OPTARG now declared as local variables within jpt due to issues when embedded in bash scripts which uses global variables for them that are not sanitized within functions as it is for zsh

  • Minified version (jpt.min) was not ES5 due to changes in Closure (my bad) this caused issues in macOS 10.15 and under, this has been addressed.

v1.0.7

  • Reverted back to standard /usr/bin sh-bang paths, using env can cause issues with upgraded shells

v1.0.6b

  • Textual output (-T) now escapes solidus/backslashes \ with \\, when encoding (-E) for escaped formats (hex, octal, Unicode code points) or if whitespace escaping (-e) is specified but without -E encoding.

v1.0.5

  • fixed handling of keypaths with multiple escaped periods

v1.0.4

  • Support and refinements for JSONPath "existence test" in filter expressions for nodes that contain data that evaluates as "falsey" (e.g. zero, negative numbers, empty strings, null, and false).

  • Negation operator (!) now works on both existence tests and standard comparison operations in filter expressions

  • For example:

% jpt -i0 '$[?(@.falsey)]' <<< '[{"falsey":0}]'
{"falsey":0}

% jpt -i0 $'$[?(!@.a && !@.b)]' <<< '[{"a":5,"b":9},{"c":3,"d":4}]'
{"c":3,"d":4}
  • -W flag to also encode whitespace when outputting encoded text with -T and -E <value> where the modes typically only encodes non-ASCII text, for example octal output suitable for fstab:
% jpt -S -W -T -EO <<< 'Macintosh HD'
Macintosh\040HD
  • Fixed bug in closure compiled minified version that affected filters. Now using whitespace only compilation level.
  • More forgiving of jq-isms in queries: a single . acts as root, .[ at the beginning is treated as $[
v1.0.3 (this is not the release you are looking for)

v1.0.2

  • Disables xtrace while inside the function for quieter debugging of your scripts
  • plutil-style keypaths are now accepted
  • jq-style paths that begin with [ or . are now accepted (jq pipes | are not support)
  • jpt function now runs in a subshell, so shell variables no longer need use local to avoid name collisions with global variables
  • Cleanup of shell syntax for test from chained -a and -o style boolean operators to discrete && and || expressions

v1.0.1

  • Help text from jpt -h now pipes through less for pagination (and has one less typo!)
  • If no inputs are detected (via file path, pipe, or file redirection) jpt displays info and exits instead of waiting for input
% jpt  
jpt (v1.0.1) - JSON Power Tool (https://github.com/brunerd/jpt)
Usage: jpt [options] [query] [filepath] (see jpt -h for more help...)
  • Fixes pkg installer bug if /usr/local/bin did not exist

v1.0.0 bug fixes and enhancements

Notable new features include:

  • The ability to parse and generate JSON Text Sequences, NDJSON/JSON Lines, and "concatenated JSON"
  • The ability to parse "JSON5" and rehabilitate back to JSON with conversion options for NaN and Infinity number types
  • Two new merge modes: merge0 to merge object properties that DO NOT intersect with source JSON and merge1 to merge only ones that do
  • Revamped hex, binary and octal numeric encoding modes using ECMAScript notation
  • Continued support for JSONPath object literals (-L mode) now with record separator support for multiple JSON texts
  • Truncated JSON can be detected and capped for recovery.

Read more about jpt at: https://www.brunerd.com/blog/category/projects/jpt/

Installation Notes: The package is not notarized (because it breaks on older macOS). Simply right-click in Finder and choose Open to allow Gatekeeper bypass. You can also remove the quarantine by opening Terminal and running this command: xattr -rc <drag in file from Finder>

The installer pkg includes both the full script (jpt) and the minified version (jpt.min) installed to /usr/local/jpt/ with a soft link to jpt created in /usr/local/bin. The minified version jpt.min is for easy inclusion in your shell scripts while jpt is for standalone use.