nyc 15.x / next version of istanbul libraries

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 (#1103)
• Remove vestigial environmental variables (#1078)
• Use istanbul-lib-processinfo from nyc
• Use @istanbuljs/load-nyc-config from nyc
• Deprecate istanbul-api (istanbuljs/istanbuljs#378)
• Redesign istanbul-lib-report summarizer API (istanbuljs/istanbuljs#390)
• Remove config loading from test-exclude (istanbuljs/istanbuljs#392)
• Use basename of source to construct cache filenames (istanbuljs/caching-transform#13)
• New release of spawn-wrap (istanbuljs/spawn-wrap#90)
• Resolve istanbul-reports regressions
• Troubleshoot issue with --all run against pre-instrumented files (#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.

[coreyfarrell]

nyc 15.0.0-beta.0 is published to npm under the next tag, change-log pasted below. babel-plugin-istanbul 6.0.0-beta.0 is also published to npm next tag.

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⚠ 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)
• 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-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)