502 Commits

Author	SHA1	Message	Date
emizzle	0ba16278bd	fix(@embark/test_app): Fix tests as paths have chagned ... The latest lerna changes have changed the HTTP paths of some test files used in the repo. This PR updates the paths to their new location.	2019-02-04 22:52:08 -06:00
Michael Bradley, Jr	7a93e4b6a7	build: implement a monorepo with Lerna ... TL;DR ===== `yarn install` in a fresh clone of the repo. `yarn reboot` when switching branches. When pulling in these changes, there may be untracked files at the root in all/some of: ``` .embark/ .nyc_output/ coverage/ dist/ embark-ui/ test_apps/ ``` They can be safely deleted since those paths are no longer in use at the root. Many of the scripts in the top-level `package.json` support Lerna's [filter options]. For example: `yarn build --scope embark` build only `packages/embark`. `yarn build --ignore embark-ui` build everything except `packages/embark-ui`. Scoping scripts will be more useful when there are more packages in the monorepo and, for example, `yarn start` doesn't need to be invoked for all of them while working on just a few of them simultaneously, e.g `embark` and `embarkjs`. It's also possible to `cd` into a particular package and run its scripts directly: ``` cd packages/embark && yarn watch ``` Hot Topics & Questions ====================== What should be done about the [README][embark-readme] for `packages/embark`? Should the top-level README be duplicated in that package? Lerna is setup to use [Fixed/Locked mode][fixed-locked], and accordingly `packages/embark-ui` is set to `4.0.0-beta.0`. The same will be true when adding embarkjs, swarm-api, etc. to the monorepo. Is this acceptable or do we want to use [Independent mode][independent]? Scripts ======= If a package doesn't have a matching script, `lerna run` skips it automatically. For example, `packages/embark-ui` doesn't have a `typecheck` script. `yarn build` ------------ Runs babel, webpack, etc. according to a package's `build` script. `yarn build:no-ui` is a shortcut for `yarn build --ignore embark-ui`. `yarn ci` --------- Runs a series of scripts relevant in a CI context according to a package's `ci` script. For `packages/embark` that's `lint typecheck build test package`. Also runs the `ci` script of the embedded `test_dapps` monorepo. `yarn clean` ------------ Runs rimraf, etc. according to a package's `clean` script. `yarn globalize` ---------------- Makes the development embark available on the global PATH, either via symlink (Linux, macOS) or a shim script (Windows). `yarn lint` ----------- Runs eslint, etc. according to a package's `lint` script. `yarn package` -------------- Invokes `npm pack` according to a package's `package` script. `yarn qa` --------- Very similar to `ci`, runs a series of scripts according to a package's `qa` script. The big difference between `ci` and `qa` is that at the top-level `qa` first kicks off `reboot:full`. There is a `preqa` script ([invoked automatically][npm-scripts]), which is a bit of a wart. It makes sure that `embark reset` can be run successfully in `packages/embark/templates/*` when the `reboot` script invokes the `reset` script. The `qa` script is invoked by `yarn release` before the latter proceeds to invoke `lerna publish`. `yarn reboot` ------------- Invokes the `reset` script and then does `yarn install`. The `reboot:full` variant invokes `reset:full` and then does `yarn install`. `yarn release` -------------- Works in concert with [lerna publish], which will prompt to verify the version before proceeding. Use `n` to cancel instead of `ctrl-c` as `lerna publish` has been seen to occasionally misbehave when not exited cleanly (e.g. creating a tag when it shouldn't have). ``` yarn release [bump] [--options] ``` * `[bump]` see [`publish` positionals][pub-pos] and [`version` positionals][ver-pos]; an exact version can also be specified. * `--preid` prerelease identifier, e.g. `beta`; when doing a prerelease bump will default to whatever identifier is currently in use. * `--dist-tag` registry distribution tag, defaults to `latest`. * `--message` commit message format, defaults to `chore(release): %v`. * `--sign` indicates that the git commit and tag should be signed; not signed by default. * `--release-branch` default is `master`; must match the current branch. * `--git-remote` default is `origin`. * `--registry` default is `https://registry.npmjs.org/` per the top-level [`lerna.json`][lerna-json]. To release `4.0.0-beta.1` as `embark@next` (assuming version is currently at `4.0.0-beta.0`) could do: ``` yarn release prerelease --dist-tag next ``` For *test releases* (there is no longer a `--dry-run` option) [verdaccio] and a filesystem git remote can be used. Condensend instructions: ``` mkdir -p ~/temp/clones && cd ~/temp/clones git clone git@github.com:embark-framework/embark.git cd ~/repos/embark git remote add FAKEembark ~/temp/clones/embark ``` in another terminal: ``` npm i -g verdaccio && verdaccio ``` in the first terminal: ``` yarn release --git-remote FAKEembark --registry http://localhost:4873/ ``` `yarn reset` ------------ Invokes cleaning and resetting steps according to a package's `reset` script. The big difference between `clean` and `reset` is that `reset` is intended to delete a package's `node_modules`. The `reset:full` variant deletes the monorepo's top-level `node_modules` at the end. That shouldn't be necessary too often, e.g. in day-to-day work when switching branches, which is why there is `reboot` / `reset` vs. `reboot:full` / `reset:full`. Errors may be seen related to invocation of `embark reset` if embark is not built, but `reset` will still complete successfully. `yarn start` ------------ Runs babel, webpack, tsc, etc. (in parallel, in watch mode) according to a package's `start` script. `yarn test` ----------- Run mocha, etc. according to a package's `test` script. The `test:full` variant runs a series of scripts: `lint typecheck test test_dapps`. `yarn test_dapps` ----------------- Runs the `test` script of the embedded `test_dapps` monorepo. The `test_dapps:ci` and `test_dapps:qa` variants run the `ci` and `qa` scripts of the embedded `test_dapps` monorepo, respectively. `yarn typecheck` ---------------- Runs tsc, etc. according to a package's `typecheck` script. Notes ===== `npx` is used in some of the top-level and package scripts to ensure the scripts can run even if `node_modules` is missing. [`"nohoist"`][nohoist] specifies a couple of embark packages because [`restrictPath`][restrictpath] is interfering with access to modules that are located in a higher-up `node_modules`. All dependencies in `packages/embark-ui` have been made `devDependencies` since its production build is self-contained. `packages/embark`'s existing CHANGELOG's formatting has been slightly adjusted to match the formatting that Lerna will use going forward (entries in the log haven't been modified). Lerna will generate a CHANGELOG at the top-level and in each package. Since we're transitioning to a monorepo, things may look a little wonky with respect to old entries in `packages/embark/CHANGELOG.md` and going forward we need to consider how scoping our commits corresponds to member-packages of the monorepo. In `packages/embark`, `test` invokes `scripts/test`, which starts a child process wherein `process.env.DAPP_PATH` is a temporary path that has all of `packages/embark/dist/test` copied into it, so that paths to test helpers/fixtures don't need to be prefixed with `dist/test/` and so that a `.embark` directory doesn't get written into `packages/embark`. The `"engines"` specified in top-level and packages' `package.json` reflect a node and npm pair that match (a source of confusion in the past). The pair was chosen according to the first post v5 npm that's bundled with node. A `"runtime"` key/object has been introduced in `packages/embark/package.json` which is used as the basis for specifying the minimum version of node that can be used to run embark, and that's what is checked by `bin/embark`. Some changes have been introduced, e.g. in `lib/core/config` and `lib/utils/solidity/remapImports` so that it's *not* implicitly assumed that `process.env.DAPP_PATH` / `fs.dappPath()` are the same as `process.cwd()`. There are probably several++ places where that assumption is still in effect, and we should work to identify and correct them. `embark reset` now deletes `embarkArtifacts/` within a dapp root, and `embarkArtifacts/` is git-ignored. `lib/core/env` adds all `node_modules` relative to `process.env.EMBARK_PATH` to `NODE_PATH` so that embark's modules can be resolved as expected whether embark's `node_modules` have been deduped or are installed in npm's flat "global style". `checkDependencies` has been inlined (see `lib/utils/checkDependencies`) and slightly modified to support dependencies that have been hoisted into a higher-up `node_modules`, e.g. as part of a yarn workspace. eslint has been disabled for that script to avoid more involved changes to it. `test_apps` is not in `packages/embark`; rather, there is `test_dapps` at the top-level of the monorepo. `test_dapps` is an embedded monorepo, and its `ci` / `qa` scripts `npm install` embark from freshly built tarballs of the packages in the outer monorepo and then use that installation to run `embark test` in the dapps. This should allow us to rapidly detect breakage related to auto-bumps in transitive dependencies. [filter options]: https://github.com/lerna/lerna/tree/master/core/filter-options [embark-readme]: https://github.com/embark-framework/embark/blob/build/lerna/packages/embark/README.md [fixed-locked]: https://github.com/lerna/lerna#fixedlocked-mode-default [independent]: https://github.com/lerna/lerna#independent-mode [npm-scripts]: https://docs.npmjs.com/misc/scripts [lerna publish]: https://github.com/lerna/lerna/tree/master/commands/publish [pub-pos]: https://github.com/lerna/lerna/tree/master/commands/publish#positionals [ver-pos]: https://github.com/lerna/lerna/tree/master/commands/version#positionals [lerna-json]: https://github.com/embark-framework/embark/blob/build/lerna/lerna.json#L11 [verdaccio]: https://www.npmjs.com/package/verdaccio [nohoist]: https://github.com/embark-framework/embark/blob/build/lerna/package.json#L52-L55 [restrictpath]: https://github.com/embark-framework/embark/blob/build/lerna/packages/embark/src/lib/core/fs.js#L9	2019-02-04 14:28:49 -06:00