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55 lines
3.1 KiB
Markdown
55 lines
3.1 KiB
Markdown
## .tool-versions
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Whenever `.tool-versions` file is present in a directory, the tool versions it declares will be used in that directory and any subdirectories.
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?> Global defaults can be set in the file `$HOME/.tool-versions`
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This is what a `.tool-versions` file looks like:
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```
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ruby 2.5.3
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nodejs 10.15.0
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```
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The versions can be in the following format:
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- `10.15.0` - an actual version. Plugins that support downloading binaries, will download binaries.
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- `ref:v1.0.2-a` or `ref:39cb398vb39` - tag/commit/branch to download from github and compile
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- `path:/src/elixir` - a path to custom compiled version of a tool to use. For use by language developers and such.
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- `system` - this keyword causes asdf to passthrough to the version of the tool on the system that is not managed by asdf.
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Multiple versions can be set by separating them with a space. For example, to use
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Python 3.7.2, fallback to Python 2.7.15 and finally to the system Python, the
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following line can be added to `.tool-versions`.
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```
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python 3.7.2 2.7.15 system
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```
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To install all the tools defined in a `.tool-versions` file run `asdf install` with no other arguments in the directory containing the `.tool-versions` file.
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To install a single tool defined in a `.tool-versions` file run `asdf install <name>` in the directory containing the `.tool-versions` file. The tool will be installed at the version specified in the `.tool-versions` file.
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Edit the file directly or use `asdf local` (or `asdf global`) which updates it.
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## \$HOME/.asdfrc
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Add a `.asdfrc` file to your home directory and asdf will use the settings specified in the file. The file should be formatted like this:
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```
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legacy_version_file = yes
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```
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**Settings**
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- `legacy_version_file` - defaults to `no`. If set to yes it will cause plugins that support this feature to read the version files used by other version managers (e.g. `.ruby-version` in the case of Ruby's `rbenv`).
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- `use_release_candidates` - defaults to `no`. If set to yes it will cause the `asdf update` command to upgrade to the latest release candidate release instead of the latest semantic version.
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- `always_keep_download` - defaults to `no`. If set to `yes` it will cause `asdf install` always keep the source code or binary it downloads. If set to `no` the source code or binary downloaded by `asdf install` will be deleted after successful installation.
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## Environment Variables
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- `ASDF_CONFIG_FILE` - Defaults to `~/.asdfrc` as described above. Can be set to any location.
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- `ASDF_DEFAULT_TOOL_VERSIONS_FILENAME` - The filename of the file storing the tool names and versions. Defaults to `.tool-versions`. Can be any valid filename. Typically you should not override the default value unless you know you want asdf to ignore `.tool-versions` files.
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- `ASDF_DIR` - Defaults to `~/.asdf` - Location of the `asdf` scripts. If you install `asdf` to some other directory, set this to that directory. For example, if you are installing via the AUR, you should set this to `/opt/asdf-vm`.
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- `ASDF_DATA_DIR` - Defaults to `~/.asdf` - Location where `asdf` install plugins, shims and installs. Can be set to any location before sourcing `asdf.sh` or `asdf.fish` mentioned in the section above.
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