Initial implementation of trace for traceResolution in #691

[onigoetz]

Hi,

sorry for the long time between the initial discussion and the pull request. I tried to do the first implementation for issue #691

I tried to write a test but could not. When running them it gets stuck at the first test:

Uncaught AssertionError [ERR_ASSERTION]: patch0/output.txt is different between actual and expected
      + expected - actual

           Asset     Size  Chunks             Chunk Names
       bundle.js   A-NUMBER-OF kB       0  [emitted]  main
      -   [0] ./.test/aliasResolution/app.ts A-NUMBER-OF bytes {0} [built]
      +   [0] ./.test/aliasResolution/app.ts A-NUMBER-OF bytes {0}
          [1] ./.test/aliasResolution/common/components/myComponent.ts A-NUMBER-OF bytes {0} [built]

[johnnyreilly]

That's fine - talk to me how this would be used / what output you expect to see when you are using it.

Let's see if I can help you.

[johnnyreilly]

My guess is we can clone an existing test (aliasResolution perhaps), call it traceResolution perhaps.

Then:

• set the traceResolution: true in the tests tsconfig.json
• delete all expected output
• follow the instructions to generate a single test output (see here: https://github.com/TypeStrong/ts-loader/blob/master/test/comparison-tests/README.md )

[onigoetz]

Sooo, I did it .. good news is your instructions worked like a charm. Bad news, the stdout isn't stored in the expected output.

Also, the full path to the files is in the logs, which makes them un-reproducible.

What can I do to make it write the output to output.txt and automatically replace absolute paths ?

The Full output I get is the following :

Expected output redirected to stdout

======== Resolving type reference directive 'braces', containing file '/Users/onigoetz/Sites/Library/ts-loader/__inferred type names__.ts', root directory '/Users/onigoetz/Sites/Library/ts-loader/node_modules/@types'. ========
Resolving with primary search path '/Users/onigoetz/Sites/Library/ts-loader/node_modules/@types'.
'package.json' does not have a 'typings' field.
'package.json' does not have a 'types' field.
'package.json' has 'main' field '' that references '/Users/onigoetz/Sites/Library/ts-loader/node_modules/@types/braces'.
Found 'package.json' at '/Users/onigoetz/Sites/Library/ts-loader/node_modules/@types/braces/package.json'. Package ID is '@types/braces/.d.ts@2.3.0'.
'package.json' does not have a 'typings' field.
'package.json' does not have a 'types' field.
File '/Users/onigoetz/Sites/Library/ts-loader/node_modules/@types/braces/index.d.ts' exist - use it as a name resolution result.
Resolving real path for '/Users/onigoetz/Sites/Library/ts-loader/node_modules/@types/braces/index.d.ts', result '/Users/onigoetz/Sites/Library/ts-loader/node_modules/@types/braces/index.d.ts'.
======== Type reference directive 'braces' was successfully resolved to '/Users/onigoetz/Sites/Library/ts-loader/node_modules/@types/braces/index.d.ts', primary: true. ========
======== Resolving type reference directive 'micromatch', containing file '/Users/onigoetz/Sites/Library/ts-loader/__inferred type names__.ts', root directory '/Users/onigoetz/Sites/Library/ts-loader/node_modules/@types'.========
Resolving with primary search path '/Users/onigoetz/Sites/Library/ts-loader/node_modules/@types'.
'package.json' does not have a 'typings' field.
'package.json' does not have a 'types' field.
'package.json' has 'main' field '' that references '/Users/onigoetz/Sites/Library/ts-loader/node_modules/@types/micromatch'.
Found 'package.json' at '/Users/onigoetz/Sites/Library/ts-loader/node_modules/@types/micromatch/package.json'. Package ID is '@types/micromatch/.d.ts@3.1.0'.
'package.json' does not have a 'typings' field.
'package.json' does not have a 'types' field.
File '/Users/onigoetz/Sites/Library/ts-loader/node_modules/@types/micromatch/index.d.ts' exist - use it as a name resolution result.
Resolving real path for '/Users/onigoetz/Sites/Library/ts-loader/node_modules/@types/micromatch/index.d.ts', result '/Users/onigoetz/Sites/Library/ts-loader/node_modules/@types/micromatch/index.d.ts'.
======== Type reference directive 'micromatch' was successfully resolved to '/Users/onigoetz/Sites/Library/ts-loader/node_modules/@types/micromatch/index.d.ts', primary: true. ========
======== Resolving type reference directive 'semver', containing file '/Users/onigoetz/Sites/Library/ts-loader/__inferred type names__.ts', root directory '/Users/onigoetz/Sites/Library/ts-loader/node_modules/@types'. ========
Resolving with primary search path '/Users/onigoetz/Sites/Library/ts-loader/node_modules/@types'.
'package.json' does not have a 'typings' field.
'package.json' does not have a 'types' field.
'package.json' has 'main' field '' that references '/Users/onigoetz/Sites/Library/ts-loader/node_modules/@types/semver'.
Found 'package.json' at '/Users/onigoetz/Sites/Library/ts-loader/node_modules/@types/semver/package.json'. Package ID is '@types/semver/.d.ts@5.4.0'.
'package.json' does not have a 'typings' field.
'package.json' does not have a 'types' field.
File '/Users/onigoetz/Sites/Library/ts-loader/node_modules/@types/semver/index.d.ts' exist - use it as a name resolution result.
Resolving real path for '/Users/onigoetz/Sites/Library/ts-loader/node_modules/@types/semver/index.d.ts', result '/Users/onigoetz/Sites/Library/ts-loader/node_modules/@types/semver/index.d.ts'.
======== Type reference directive 'semver' was successfully resolved to '/Users/onigoetz/Sites/Library/ts-loader/node_modules/@types/semver/index.d.ts', primary: true. ========
======== Resolving module 'braces' from '/Users/onigoetz/Sites/Library/ts-loader/node_modules/@types/micromatch/index.d.ts'. ========
Module resolution kind is not specified, using 'NodeJs'.
Loading module 'braces' from 'node_modules' folder, target file type 'TypeScript'.
Directory '/Users/onigoetz/Sites/Library/ts-loader/node_modules/@types/micromatch/node_modules' does not exist, skipping all lookups in it.
Directory '/Users/onigoetz/Sites/Library/ts-loader/node_modules/@types/node_modules' does not exist, skipping all lookups in it.
'package.json' does not have a 'typings' field.
'package.json' does not have a 'types' field.
'package.json' has 'main' field 'index.js' that references '/Users/onigoetz/Sites/Library/ts-loader/node_modules/braces/index.js'.
Found 'package.json' at '/Users/onigoetz/Sites/Library/ts-loader/node_modules/braces/package.json'. Package ID is 'braces/i.d.ts@2.3.0'.
File '/Users/onigoetz/Sites/Library/ts-loader/node_modules/braces.ts' does not exist.
File '/Users/onigoetz/Sites/Library/ts-loader/node_modules/braces.tsx' does not exist.
File '/Users/onigoetz/Sites/Library/ts-loader/node_modules/braces.d.ts' does not exist.
'package.json' does not have a 'typings' field.
'package.json' does not have a 'types' field.
File '/Users/onigoetz/Sites/Library/ts-loader/node_modules/braces/index.ts' does not exist.
File '/Users/onigoetz/Sites/Library/ts-loader/node_modules/braces/index.tsx' does not exist.
File '/Users/onigoetz/Sites/Library/ts-loader/node_modules/braces/index.d.ts' does not exist.
'package.json' does not have a 'typings' field.
'package.json' does not have a 'types' field.
'package.json' has 'main' field '' that references '/Users/onigoetz/Sites/Library/ts-loader/node_modules/@types/braces'.
Found 'package.json' at '/Users/onigoetz/Sites/Library/ts-loader/node_modules/@types/braces/package.json'. Package ID is '@types/braces/.d.ts@2.3.0'.
File '/Users/onigoetz/Sites/Library/ts-loader/node_modules/@types/braces.d.ts' does not exist.
'package.json' does not have a 'typings' field.
'package.json' does not have a 'types' field.
File '/Users/onigoetz/Sites/Library/ts-loader/node_modules/@types/braces/index.d.ts' exist - use it as a name resolution result.
Resolving real path for '/Users/onigoetz/Sites/Library/ts-loader/node_modules/@types/braces/index.d.ts', result '/Users/onigoetz/Sites/Library/ts-loader/node_modules/@types/braces/index.d.ts'.
======== Module name 'braces' was successfully resolved to '/Users/onigoetz/Sites/Library/ts-loader/node_modules/@types/braces/index.d.ts'. ========

[johnnyreilly]

Oh wow. Yeah - that makes sense. Bottom line, this is a 1 line change - it doesn't break existing tests and it adds functionality. Merged.

[onigoetz]

Oh, thanks :) That was fast

[johnnyreilly]

Released with v3.5.0: https://github.com/TypeStrong/ts-loader/releases/tag/v3.5.0