[gem-book] Improve `onlyFile` · mantou132/gem@7d620ba

The following actions uses node12 which is deprecated and will be forced to run on node16: actions/checkout@v2, actions/setup-node@v1. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/

Run yarn run lint: packages/gem-book/src/bin/builder.ts#L143

Unexpected console statement

Run yarn run lint: packages/gem-book/src/bin/builder.ts#L152

Unexpected console statement

Run yarn run lint: packages/gem-book/src/bin/builder.ts#L157

Unexpected console statement

Run yarn run lint: packages/gem-book/src/bin/builder.ts#L189

Unexpected console statement

Run yarn run lint: packages/gem-book/src/bin/index.ts#L228

Caution: `mkdirp` also has a named export `sync`. Check if you meant to write `import {sync} from 'mkdirp'` instead

Run yarn run lint: packages/gem-book/src/bin/index.ts#L233

Unexpected console statement

Run yarn run lint: packages/gem-book/src/bin/utils.ts#L16

'NavItem' is defined but never used. Allowed unused vars must match /^_/u

Run yarn run lint: packages/gem-book/src/bin/utils.ts#L18

'normalizeId' is defined but never used. Allowed unused vars must match /^_/u

Run yarn run lint: packages/gem-book/src/bin/utils.ts#L112

Unexpected console statement

Run yarn run lint: packages/gem-book/src/bin/utils.ts#L188

Unexpected console statement

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