mirror of
https://github.com/julia-actions/setup-julia.git
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155 lines
5.7 KiB
Markdown
155 lines
5.7 KiB
Markdown
# setup-julia Action
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[](https://dependabot.com)
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This action sets up a Julia environment for use in actions by downloading a specified version of Julia and adding it to PATH.
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## Table of Contents
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- [Table of Contents](#table-of-contents)
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- [Usage](#usage)
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- [Basic](#basic)
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- [Julia Versions](#julia-versions)
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- [Matrix Testing](#matrix-testing)
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- [Versioning](#versioning)
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- [Future plans & ideas](#future-plans--ideas)
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- [Licence info](#licence-info)
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## Usage
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See [action.yml](action.yml).
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You can find a list of example workflows making use of this action here: [julia-actions/example-workflows](https://github.com/julia-actions/example-workflows).
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### Basic
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```yaml
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steps:
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- uses: actions/checkout@v1.0.0
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- uses: julia-actions/setup-julia@v0.2
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with:
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version: 1.0.4
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- run: julia -e 'println("Hello, World!")'
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```
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### Julia Versions
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You can either specify specific Julia versions or version ranges. If you specify a version range, the **highest** available Julia version that matches the range will be selected.
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**Warning:** It is strongly recommended to wrap versions in quotes. Otherwise, the YAML parser used by GitHub Actions parses certain versions as numbers which causes the wrong version to be selected. For example, `1.0` is parsed as `1`.
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#### Examples
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- `1.2.0` is a valid semver version. The action will try to download exactly this version. If it's not available, the build step will fail.
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- `1.0` is a version range that will match the highest available Julia version that starts with `1.0`, e.g. `1.0.5`.
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- `^1.3.0-rc1` is a caret version range that includes preleases. It matches all versions `≥ 1.3.0-rc1` and `< 1.4.0`.
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Internally the action uses node's semver package to resolve version ranges. Its [documentation](https://github.com/npm/node-semver#advanced-range-syntax) contains more details on the version range syntax.
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#### WARNING: Version ranges are experimental and potentially out of date
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Currently the list of available versions is hardcoded. You have to use the latest version of the action to be able to install the latest Julia versions. Once available we will use a list of versions provided on julialang.org.
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### Matrix Testing
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#### 64-bit Julia only
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```yaml
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jobs:
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test:
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runs-on: ${{ matrix.os }}
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strategy:
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matrix:
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julia-version: ['1.0', '1.2.0', '^1.3.0-rc1']
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os: [ubuntu-latest, windows-latest, macOS-latest]
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steps:
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- uses: actions/checkout@v1.0.0
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- name: "Set up Julia"
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uses: julia-actions/setup-julia@v0.2
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with:
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version: ${{ matrix.julia-version }}
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- run: julia -e 'println("Hello, World!")'
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```
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#### 32-bit Julia
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```yaml
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jobs:
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test:
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runs-on: ${{ matrix.os }}
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strategy:
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matrix:
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julia-version: ['1.0', '1.2.0', '^1.3.0-rc1']
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julia-arch: [x64, x86]
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os: [ubuntu-latest, windows-latest, macOS-latest]
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# 32-bit Julia binaries are not available on macOS
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exclude:
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- os: macOS-latest
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julia-arch: x86
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steps:
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- uses: actions/checkout@v1.0.0
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- name: "Set up Julia"
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uses: julia-actions/setup-julia@v0.2
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with:
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version: ${{ matrix.julia-version }}
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arch: ${{ matrix.julia-arch }}
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- run: julia -e 'println("Hello, World!")'
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```
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Alternatively, you can include specific version and OS combinations that will use 32-bit Julia:
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```yaml
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jobs:
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test:
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runs-on: ${{ matrix.os }}
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strategy:
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matrix:
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julia-version: ['1.0', '1.2.0', '^1.3.0-rc1']
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os: [ubuntu-latest, windows-latest, macOS-latest]
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# Additionally create a job using 32-bit Julia 1.0.4 on windows-latest
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include:
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- os: windows-latest
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julia-version: ['1.0.4']
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julia-arch: x86
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steps:
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- uses: actions/checkout@v1.0.0
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- name: "Set up Julia"
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uses: julia-actions/setup-julia@v0.2
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with:
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version: ${{ matrix.julia-version }}
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- run: julia -e 'println("Hello, World!")'
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```
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## Versioning
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This action follows [GitHub's advice](https://help.github.com/en/articles/about-actions#versioning-your-action) on versioning actions, with an additional `latest` tag.
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If you don't want to deal with updating the version of the action, similiarly to how Travis CI handles it, use `latest` or major version branches. [Dependabot](https://dependabot.com/) can also be used to automatically create Pull Requests to update actions used in your workflows.
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It's unlikely, but not impossible, that there will be breaking changes post-v1.0.0 unless a new major version of Julia is introduced.
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You can specify commits, branches or tags in your workflows as follows:
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```yaml
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steps:
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- uses: julia-actions/setup-julia@6ae948d # commit SHA
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- uses: julia-actions/setup-julia@master # branch
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- uses: julia-actions/setup-julia@latest # latest version tag (may break existing workflows)
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- uses: julia-actions/setup-julia@v1 # major version tag
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- uses: julia-actions/setup-julia@v0.1.0 # specific version tag
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```
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## Future plans & ideas
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In no particular order:
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* Check if a cached version of Julia is available instead of installing it everytime CI runs ([waiting on GitHub to add proper caching](https://twitter.com/natfriedman/status/1164210683979812869))
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* Add support for nightly Julia builds.
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* Add CI script that checks if tags have been updated on release.
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* Hash and signature checks.
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## Licence info
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Parts of this software have been derived from the `setup-go` [action](https://github.com/actions/setup-go) and the [TypeScript Action Template](https://github.com/actions/typescript-action), both released by GitHub under the MIT licence.
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