unstacktracify

Have you ever been faced with a stacktrace that looks like this?

``
TypeError h is not a function. (In 'h()', 'h' is undefined)
main.jsbundle:954:5353
main.jsbundle:112:423 p
main.jsbundle:112:1740
main.jsbundle:112:423 p
main.jsbundle:112:898 n
main.jsbundle:112:1273
main.jsbundle:50:205 c
main.jsbundle:50:1623 b
main.jsbundle:50:488 _
[native code] value
[native code] value
`

or worse, one that looks like this?

`
Error: Syntax Error
! at ms (source.js:2:2440991)
! at ms (source.js:2:2441064)
! at ds (source.js:2:2440502)
! at Oc (source.js:2:2454651)
! at t.unstable_runWithPriority (source.js:2:783491)
! at Go (source.js:2:2400035)
! at wc (source.js:2:2452730)
! at sc (source.js:2:2448884)
! at source.js:2:2400326
! at t.unstable_runWithPriority (source.js:2:783491)
`

...perhaps from production from a minified web JS bundle or a React Native error report.

stacktracify takes a source map and a stack trace from your clipboard (or from a file) and outputs a readable stacktrace with proper line numbers for each line

Example output:
`
TypeError h is not a function. (In 'h()', 'h' is undefined)
at getAuthToken (logic/api.js:67:20)
at authRequest (logic/api.js:127:8)
at data (logic/SaveQueue.js:30:20)
at op (logic/SaveQueue.js:43:29)
at __callImmediates (node_modules/react-native/Libraries/BatchedBridge/MessageQueue.js:143:11)
`

Install

`
yarn add unstacktracify
`

Usage

Copy a minified stacktrace to your clipboard - then run:

`
yarn stacktracify /path/to/source-maps
`

Can also read stacktrace from file. For more info:
`
yarn stacktracify --help
``

See also

- https://github.com/gabmontes/source-map-cli (only takes one line at a time)
- https://github.com/janekp/mapstrace (not a CLI, not easy to use for any stack trace)