62 lines
3.1 KiB
Plaintext
62 lines
3.1 KiB
Plaintext
To compile `x-plugins`, you must clone the Elasticsearch repository into the same parent directory. For example:
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[source,bash]
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----
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$ mkdir elastic
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$ cd elastic
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$ git clone git@github.com:elastic/elasticsearch.git
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$ git clone git@github.com:elastic/x-plugins.git
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$ git clone git@github.com:elastic/kibana.git <1>
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----
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<1> For anyone doing UI development, it's also useful to have Kibana at the same level.
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Once cloned, any command should be executed from the **elasticsearch** directory. This ensures that the full dependency tree is available.
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[source,bash]
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----
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$ cd elasticsearch
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$ gradle clean test check <1>
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----
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<1> This will run the `clean` task, `test` task, and then the `check` task on _every_ project that has it. However, `check` requires that `test` be run, so it won't _rerun_ `test`. `clean` is unnecessary here, but people often use it anyway.
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If this command were run in a different order, then it would still follow the same rules, but the behavior would change:
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[source,bash]
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----
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$ gradle check test clean <1>
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----
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<1> It would run every task that `check` requires (e.g., `test` and `integTest`), skip `test` because it has already been run (indirectly by `check`), and then finally it would _wastefully_ delete every project output.
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As a quick helper, below are the equivalent commands from `maven` to `gradle`. You can also run `gradle tasks` to see all tasks that are available to run.
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[cols="3*", options="header"]
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|====
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| Maven | Gradle | Description
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| `clean` | `clean` | Delete anything that exists already. You do _not_ generally need to run `clean` with Gradle for any task that _Gradle_ manages the inputs/outputs (in other words, it knows when it needs to rebuild versus reuse).
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| `test` | `test` | Run all unit tests.
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| `verify` | `check` | Run all tests, plus extra checks (e.g., `checkStyle`, `forbiddenApis`, etc.).
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| `verify -Dskip.unit.tests` | `integTest` | Run only integration tests.
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| `package -DskipTests` | `assemble` | Output is in `${project.projectDir}/build/distributions`
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| `install -DskipTests` | `install` | Build jars and place them into the local _Maven_ repository (yes, even with Gradle).
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This should be unnecessary with the unified build!
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|====
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The full task list, with a minor breakout as a graph of dependencies can be seen with:
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[source,bash]
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----
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$ gradle tasks --all
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----
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Given that we currently have 80 projects, this can be extremely verbose.
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With Gradle, you can easily target specific `projects` to run commands against, and it will build all necessary dependencies to make it happen. For example, if you make a change to a specific test in the `x-pack` subproject, then you can specifically invoke its `test` task.
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[source,bash]
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----
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$ gradle :x-plugins:elasticsearch:x-pack:test -Dtests.class=*YourTests
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----
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This applies to any command that follows the Directed Acyclic Graph (DAG) for its dependencies. The above example would trigger Elasticsearch `core` to be built, as well as the test framework and any other dependencies that it may have.
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