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goreleaser/www/docs/customization/universalbinaries.md
Carlos Alexandro Becker c457d8fff7
feat: allow to use .Path and .Name on universal binary post hooks (#2891)
* feat: allow to use .Path and .Name on universal binary post hooks

This allows the usage of `{{ .Path }}` and `{{ .Name }}` on post
templates.

Closes #2890

* docs: improve docs

* test: add more tests
2022-02-08 11:44:47 -03:00

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Markdown

# macOS Universal Binaries
GoReleaser can create _macOS Universal Binaries_ - also known as _Fat Binaries_.
Those binaries are in a special format that contains both `arm64` and `amd64` executables in a single file.
Here's how to use it:
```yaml
# .goreleaser.yaml
universal_binaries:
-
# ID of resulting universal binary.
#
# Defaults to the project name.
id: foo
# IDs to use to filter the built binaries.
#
# Defaults to the `id` field.
ids:
- build1
- build2
# Universal binary name template.
#
# You will want to change this if you have multiple builds!
#
# Defaults to '{{ .ProjectName }}'
name_template: '{{.ProjectName}}_{{.Version}}'
# Whether to remove the previous single-arch binaries from the artifact list.
# If left as false, your end release might have both several macOS archives: amd64, arm64 and all.
#
# Defaults to false.
replace: true
# Hooks can be used to customize the final binary,
# for example, to run generators.
# Those fields allow templates.
#
# Default is both hooks empty.
hooks:
pre: rice embed-go
post: ./script.sh {{ .Path }}
```
!!! tip
Learn more about the [name template engine](/customization/templates/).
For more info about hooks, see the [build section](/customization/build/#build-hooks).
The minimal configuration for most setups would look like this:
```yaml
# .goreleaser.yml
universal_binaries:
- replace: true
```
That config will join your default build macOS binaries into an Universal Binary,
removing the single-arch binaries from the artifact list.
From there, the `Arch` template variable for this file will be `all`.
You can use the Go template engine to remove it if you'd like.
!!! warning
You'll want to change `name_template` for each `id` you add in universal binaries, otherwise they'll have the same name.
Example:
```yaml
universal_binaries:
- id: foo
name_template: bin1
- id: bar
name_template: bin2
```
## Naming templates
Most fields that support [templating](/customization/templates/) will also
support the following build details:
| Key | Description |
|---------|-----------------------------------|
| .Os | `GOOS`, always `darwin` |
| .Arch | `GOARCH`, always `all` |
| .Arm | `GOARM`, always empty |
| .Ext | Extension, always empty |
| .Target | Build target, always `darwin_all` |
| .Path | The binary path |
| .Name | The binary name |
!!! tip
Notice that `.Path` and `.Name` will only be available after they are
evaluated, so they are mostly only useful in the `post` hooks.