[PR 1318][PR1318] introduces a monorepo member that's used as a DApp
dependency, but the present arrangement whereby `test_dapps/` is an embedded
monorepo makes it difficult to develop and test such packages in tandem with
changes to `test_dapps/packages/*`.
Reorganize `test_dapps/*` as members of the root monorepo and make various
adjustments accordingly. This makes it easy to develop test dapps and any
packages they depend on simultaneously, but we lose the CI/QA arrangement where
test dapps are run with an embark installed from fresh tarballs. That
arrangement, which is quite worthwhile as a means to detect problems arising
from transitive dependencies as soon as possible, will be re-introduced in
another PR, possibly involving an auxiliary repository such as
embark-framework/dapp-bin.
Since the `package.json` `"test"` scripts of `test_dapps/*` are now kicked off
as part of `yarn test` in the root, and since port allocation isn't fully
dynamic, it's important to run `yarn test` with `lerna run`'s `--concurrency=1`
option. For the same reasons, the root `ci` and `qa` scripts are similarly
restricted. In the future, this setup can be refactored and improved, along
with use of `lerna run`'s `--since` option to increase testing efficiency in
CI.
[PR1318]: https://github.com/embark-framework/embark/pull/1318
Setup a `babel.config.js` in the root of the monorepo to be used by
`packages/*`. It won't be used by some packages, e.g. `packages/embark-ui`, but
most of them should use it instead of rolling their own.
Allow for package-level modifications by specifying `babelrcRoots` in the root
`babel.config.js`
Use the babel `--root-mode upward` option in `packages/embark`'s `build`
script. Other packages intending to use the common config should do likewise.
Use a `.babelrc.js` in `packages/embark` to supply the package-specific
`ignore` settings.
Make packages used by the common config devDeps of the root.
Extract babel-related devDeps from `packages/embark`, but don't extract the
non-dev deps since those are used by embark's pipeline in a production
install. Normally, it should only be necessary to have `@babel/cli` and
`@babel/core` in devDeps, and possibly `@babel/runtime-corejs2` in deps, plus
any package-specific babel-related dev/deps. Once we deprecate the pipeline, we
can finish the extraction.
Use `ncu -f '/babel/' -u` to bump the versions of all babel-related deps in the
root and in `packages/embark`. We get better space/time savings from the yarn
workspace when versions match.
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
Add support to recursively import contracts. If we have three contracts
1. A imports B
2. B imports C
Then prior to this PR, contract A would import contract B, and a remapping would be added to the contract so the compiler would know how to find contract B. However, contract B imports contracts C, and because the `parseFileForImport` method was not recursive, the remappings were not able to go one level deeper to remap the path to contract C, and thus the compiler would not know how to locate contract C, and would complain with the error `File outside of allowed directories.`
With the introduction of this PR, the `parseFileForImport` method is now recursive, and so any contract imported is also checked for it's own imports that can be remapped. Specifically, this use case is applicable when there is a dependency containing contracts that imports one of it's own dependency's contracts, ie:
```
pragma solididty ^0.5.0;
import "dependency-1/contract-1.sol";
```
where the dependencies look like:
```
|- node_modules
|--- dependency-1
|----- contract-1.sol <--- contains import "dependency-2/contract-2.sol"
|--- dependency-2
|----- contract-2.sol
```
Add unit tests that verify recursive imports work.
Add embark depdendency that installs a contract used in the recursive unit tests.
All code to be run in the console is run through a completely sandboxed VM2 instance, instead of the default Node VM.
VM2 will only allow whitelisted packages in a `require` statement. The whitelisted packages needed to run EmbarkJS scripts are:
```
[
"@babel/runtime-corejs2/helpers/interopRequireDefault",
"@babel/runtime-corejs2/core-js/json/stringify",
"@babel/runtime-corejs2/core-js/promise",
"@babel/runtime-corejs2/core-js/object/assign",
"eth-ens-namehash"
]
```
This can be circumvented in an Embark context (ie Plugin) if needed, for example in a Plugin constructor:
```
Embark.events.emit('runcode:register', 'require', require('lodash'), false);
Embark.events.request("runcode:eval", "_.head(['a', 'b', 'c', 'd']);", (err, result) => {
if(err) return console.log('========> error: ' + err);
console.log('========> ' + result);
});
```
Will emit `========> a`.
NOTE: Attempts to use this method to override `require` and `eval` should be handled by Embark and not allowed.
NOTE: VM2 seems to allow `eval`, however it is in a completely sandboxed environment, so I'm unsure that we need to be too concerned with this. Thoughts?
Refactor tests to use standalone instance of the newly created VM class, so that code is not evaluated through the console. This was done based on the new unit test case where accounts are redefined in a subsequent unit test, which was not originally working with the initial VM2 PR.
Refactor `codeRunner`, put all code-affecting logic in the `VM` class.
Changed `runCode` to `VM` and converted to TypeScript
Add unit tests for `VM`.
The problems described in embark PR #1166 can be resolved by implementing the
blockchain proxy with `http-proxy` directly instead of using `express` together
with `http-proxy-middleware`. The ultimate cause of the buggy behavior (the
"stuck sockets" problems described in #1166) is unknown.
The need to swallow some errors as described in embark PR #1181 is also
eliminated by dropping `http-proxy-middleware` and `express`.
For reasons unknown, `ECONNRESET` errors on websocket connections to embark's
blockchain proxy are not automatically handled on Windows as they are on macOS
and Linux (or those errors aren't happening on those platforms, it's difficult
to determine). Explicitly swallow such errors so the blockchain process doesn't
crash. Prior to this PR, the crash-behavior can be reproduced on Windows by
running `embark blockchain` and `embark run` in separate terminals and quitting
`embark run` while `embark blockchain` is still running.
Consistently use the `simples` package's `WsParser` to process websocket
traffic instead of using `WsParser` for requests and the `ws` package's
`Websocket.Receiver` for responses.
Consistently use `pump` to connect parser streams instead of using `pump` in
some places and `chain` in others. Drop use of `cloneable` (and the package
dependency) since it was used previously in hopes it would fix the errors, but
it's unnecessary and didn't fix them.
The webpack process took quite a while to run, and there were no updates in the console while running.
This PR adds a spinner (when there is no dashboard) and status updates every 5 seconds. When there is a dashboard, the updates are added to a new line.
After (with dashboard):
After (`—nodashboard`):
Convert LongRunningProcessTimer to TypeScript
PR feedback and consistency changes
Changed the constructor signature to accept an options object instead of individual optional parameters, for readability.
Changed library_manager to use the spinner when not using the dashboard, for consistency’s sake. Additionally increased the update time for the library manager from 750ms to 1s.
Fix lint errors
Added `"variable-name": ["allow-leading-underscore”]` to `tslint.json` due to a lack of the ability to prefix backing variables with underscore. This is an [ongoing discussion](https://github.com/palantir/tslint/issues/1489), and something the community thinks should be implemented, as it the preferred way to use a property with backing variable in TypeScript.
**TL;DR**
These changes affect workflow with yarn. To prevent embark's `prepare` script
from running undesirably:
- If node_modules is in place and you're reinstalling after switching branches:
```
yarn run install_all
```
- If node_modules is missing (fresh clone or deleted):
```
EMBARK_NO_PREPARE=t yarn install && yarn run install_all
```
It's not recommended to set `EMBARK_NO_PREPARE` in your environment (e.g. in
`.bashrc`) since that would interfere with embark's `release` script if/when
you run it.
-----------------
**1.** Specify embark's build-related steps in the `prepare` script of
package.json.
When embark is installed directly from GitHub the `prepare` script results in a
"pre install" phase (handled automatically by npm/yarn) that fetches
devDependencies, builds embark (including embark-ui), packs a tarball with the
same steps (minus testing and tree-checking) as would happen during an embark
release, and finally does a production install from that tarball.
Important point: installs from GitHub must be performed with yarn; they're no
longer possible with npm since during the "pre install" phase npm will honor
embark's `.npmrc` and `"engines"` settings.
The following will work correctly after this commit is merged:
```
yarn [global] add git+https://github.com/embark-framework/embark.git
```
Use of "hosted git" shortcuts (e.g. `embark-framework/embark#bracnh`) won't
work correctly because yarn doesn't fully support them. See:
https://github.com/yarnpkg/yarn/issues/5235.
It's important to use `git+https` urls. Following a succesful install with
`git+https` it is possible to use a "hosted git" shortcut or `https` url, but
that's owing to a subtle and unreliable interaction between yarn's cache and
yarn's logic for installing from a url/shortcut.
**2.** Adjust the npm configs (`.npmrc`) for embark/-ui so that `yarn run [cmd]
[--opt]` can be used in place of `npm run [cmd] -- [--opt]`.
Either way is okay for running scripts, they're equivalent, but note the
requirement to use `--` before specifying command options with `npm run`.
**3.** Introduce yarn configs (`.yarnrc`) for embark/-ui and include the
`check-files` directive.
H/t to @alaibe for the recommendation.
**4.** Ignore embark's `dist/typings` and `scripts` directories when packing a
tarball.
**5.** Refactor embark/-ui's npm-scripts in relation to the `prepare` script,
and make other small improvements.
Notably, if the environment variable `EMBARK_NO_PREPARE` is truthy (from JS
perspective) then embark's `prepare` script will exit early. This prevents
`install_all` and `prepare` from getting stuck in a loop (`install:core` uses
cross-env to set `EMBARK_NO_PREPARE`) and provides a mechanism for users to
skip the `prepare` script when doing a fresh install:
```
EMBARK_NO_PREPARE=t yarn install
```
**6.** Give `.js` extensions to node scripts in embark's `scripts/`, remove the
shebang lines, and have npm-scripts explicitly invoke them with node.
This arrangement works for all platforms: Linux, macOS, and Windows.
**7.** Adjust travis and appveyor configs.
Since at present there aren't any tests or other CI steps that make use of
embark-ui's production build, set `EMBARK_NO_PREPARE` in the CI environments
and invoke `build:node` directly.
Check the working tree after `yarn install` for embark/-ui. This detects
situations where changes should have been committed to `yarn.lock` but were
not. Check the working tree again at the end to detect situations where ignore
files should have been adjusted but were not. Both checks could also detect
other surprising behavior that needs to be investigated. Any time the working
tree is not clean (there are untracked files or changes) CI will fail.
Drop CI runs for node 8.11.3 because that version ships with an older npm that
results in unstaged changes to the test apps' `package-lock.json` files,
causing the working tree check to fail at the end of the CI run. A simple
workaround isn't apparent, but the matter can be revisited.
**8.** Refactor embark's `release` script in light of the `prepare` script.
Notably, do the push step only after `npm publish` completes successfully. This
allows embark's `prepare` and `prepublishOnly` scripts to detect problems
before a commit and tag are pushed to GitHub, avoiding a need to rebase/revert
the remote release branch; the local branch will still need to have a commit
dropped and tag deleted before rerunning the `release` script.
Prompt the user if the `release` script is not being run in `--dry-run` mode.
Provide additional visual indicators of `--dry-run` mode.
Force the user to supply `--repo-branch [branch]` if the intention is to
release from a branch other than `master`.
Use proper stream parsing to consistently track JSON-RPC messages.
For HTTP POST requests use the `stream-json` package to assemble request and
response message objects.
For WebSocket requests continue to use `simples/lib/parsers/ws` to process
stream frames into messages. For Websocket responses use the Receiver class of
the `ws` package to process stream data into messages. In both cases, make use
of the `cloneable-readable` and `stream-chain` packages to avoid leaks.
This mishmash of stream parsing approaches is the result of much
experimentation to find a working solution. For example,
`simples/lib/parsers/ws` does't work for processing WebSocket responses and
`ws.Receiver` doesn't work for processing requests. Additional revisions may be
necessary.
Revise `blockchain_process/dev_funds.js` to use web3's HTTP provider if a DApp
disables the WebSocket proxy.
This commit automates our release process. It takes care of a couple of things:
- Bumps version number in package.json as needed, see below
- Generates changelog based on commit history
- Create release commit
- Tags release commit
- Pushes release commit including tags to upstream repository
- Publishes release on npm
There are a couple of options supported. The base command is run like this:
```
npm run release
```
This will do a minor bump and try to push to `origin` on `master`. However,
this can be altered with the following options.
```
npm run release -- --dry-run
```
Can be used to perform dry run and not actually committing, tagging, pushing,
publishing anything.
```
npm run release -- --release-as <something>
```
Something can be `minor`, `major`, `patch` or anything you want `foo`, `1.0.0` etc.
```
npm run release -- --prerelease alpha
```
Will create a prerelease version a la `4.0.0-alpha.x`.
```
npm run release -- --prerelease alpha --npm-dist-tag next
```
Publishes a dist tag on npm using dist tag `next`
```
npm run release -- --sign
```
Signs the release commit (you need to have PGP setup for that).
```
npm run release -- --repo-origin pascal --repo-branch foo/bar
```
Pushes the release commit into `pascal/foo/bar`.
yarn.lock files are generated for embark and embark-ui, and their package.json
files and other npm related files are updated to support and require using yarn
for development of embark itself and for embark's CI.
Jonathan Rainville
Michael Bradley, Jr
André Medeiros
Anthony Laibe
emizzle
Iuri Matias
Jordan Last
Pascal Precht
