nyc 15.x / next version of istanbul libraries

[coreyfarrell]

The following major/breaking changes are currently planned for nyc 15 and the next version of istanbul libraries:

• Require Node.js 8 / drop Node.js 6
• Expand default extension list (Expand default extension list #1103)
• Remove vestigial environmental variables (chore: remove vestigial environment variables #1078)
• Use istanbul-lib-processinfo from nyc
• Use @istanbuljs/load-nyc-config from nyc
• Deprecate istanbul-api (fix: Deprecate istanbul-api. istanbuljs#378)
• Redesign istanbul-lib-report summarizer API (Redesign istanbul-lib-report summarizer API istanbuljs#390)
• Remove config loading from test-exclude (Remove config loading from test-exclude? istanbuljs#392)
• Use basename of source to construct cache filenames (Drop Node.js 6, add support for filenamePrefix callback caching-transform#13)
• New release of spawn-wrap (Update roadmap spawn-wrap#90)
• Resolve istanbul-reports regressions
• Troubleshoot issue with --all run against pre-instrumented files (Inconsistent nyc baseline coverage results with pre-instrumented code #1208)
• Find a solution for nyc node --require esm in latest versions of node.js Unfixable

This tracking ticket will be updated as progress is made, it will be closed when nyc@15.0.0 is released.

[mightyiam]

Thank you for all of the work, @coreyfarrell and everyone else who might have contributed.

Trying to be helpful by adding a PR here. It has CI.
https://github.com/mightyiam/shields-badge-data/pull/109

[mightyiam]

https://github.com/mightyiam/shields-badge-data/pull/120 👍

[coreyfarrell]

nyc 15.0.0-beta.1 is now published to npm next tag. Updated change-log below.

---

⚠ BREAKING CHANGES

• The flow and jsx parser plugins are no longer
  enabled by default.
• Node.js 8 is now required to run nyc
• Remove NYC_ROOT_ID and NYC_INSTRUMENTER environmental
  variables.
• The root field has been removed from processinfo
  files.

Bug Fixes

• Avoid source-map module during signal-exit handler (#1191) (83eb629)
• Correct handling of source-maps for pre-instrumented files (#1216) (8411a26), closes #1208
• Drop coverage produced by nyc --all for files that were tested (#1155) (fc1bbbf), closes #1113 #1124 #1148
• Honor eager setting (false by default) (#1179) (c18fb0a)
• Remove vestigial environment variables (#1078) (cfd3da0)

Features

• Add --use-spawn-wrap=true option (#1169) (df4de4d)
• Add .cjs, .mjs, .ts, .tsx, .jsx to default extensions (#1110) (914b776), closes #1103
• Allow nyc instrument to instrument code in place (#1149) (7783284)
• Drop node.js 6, upgrade dependencies (#1134) (00c3b34)
• Use @istanbuljs/schema for yargs setup (#1194) (fd40d49)
• Use istanbul-lib-processinfo (#1145) (7943413)
• Use source base name to prefix cache files (#1144) (5c1b7a9)

[coreyfarrell]

nyc 15.0.0 and babel-plugin-istanbul 6.0.0 are now published to npm under the next tag. Some minor changes to reporting and some internal changes since the last update here. Any testing would be appreciated, let me know of any issues.

The intent is for these to become the final releases. CHANGELOG is now updated in the master branch.

[coreyfarrell]

nyc 15.0.0 and babel-plugin-istanbul 6.0.0 are now latest on npm.

[harpal-sgh]

I am getting 0% for statements, lines, functions -
===================== Coverage summary ===============================
Statements : 0% ( 0/34 )
Branches : 100% ( 0/0 )
Functions : 0% ( 0/4 )
Lines : 0% ( 0/34 )

nyc": "^15.0.0",

"scripts": {
"test": "serverless-bundle test",
"test-nyc": "nyc npm test"
},

I do have few tests for all the files.

[Codex-]

Had that as well but found it was a bad setting in .nycrc that we had from the old days