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* use 1.'s for ordered list * fix whitespace in ordered list * use active voice * capitalize SemVer * Remove fluff word * use active voice * update paragraph, needs further work * explain how to pin to a specific Go lang version * change Go version from 1.14.2 -> 1.14.12 * strip patch level from Go version, explain why
45 lines
2.4 KiB
Markdown
45 lines
2.4 KiB
Markdown
---
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title: Go Modules
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description: Go modules support in Renovate
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---
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# Automated Dependency Updates for Go Modules
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Renovate supports upgrading dependencies in `go.mod` files and their accompanying `go.sum` checksums.
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## How It Works
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1. Renovate searches in each repository for any `go.mod` files
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1. Renovate extracts existing dependencies from `require` statements
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1. Renovate resolves the dependency's source repository and checks for SemVer tags if found. Otherwise commits and `v0.0.0-....` syntax will be used
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1. If Renovate finds an update, Renovate will update `go.mod` to the new value
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1. Renovate runs `go get` to update the `go.sum` files
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1. If the user has enabled the option `gomodTidy` in the [`postUpdateOptions`](https://docs.renovatebot.com/configuration-options/#postupdateoptions) array, then Renovate runs `go mod tidy`, which itself can update `go.mod` and `go.sum`
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1. `go mod vendor` is run if vendored modules are detected
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1. A PR will be created with `go.mod`,`go.sum`, and any updated vendored files updated in the one commit
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1. If the source repository has either a "changelog" file or uses GitHub releases, then Release Notes for each version will be embedded in the generated PR
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## Enabling Go Modules Updating
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Renovate updates Go Modules by default.
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To install Renovate Bot itself, either enable the [Renovate App](https://github.com/apps/renovate) on GitHub, or check out [Renovate OSS](https://github.com/renovatebot/renovate) for self-hosted.
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## Technical Details
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#### Module Tidying
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Go Modules tidying is not enabled by default, and is opt-in via the [`postUpdateOptions`](https://docs.renovatebot.com/configuration-options/#postupdateoptions) config option.
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The reason for this is that a `go mod tidy` command may make changes to `go.mod` and `go.sum` that are completely unrelated to the updated module(s) in the PR, and so may be confusing to some users.
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#### Module Vendoring
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Vendoring of Go Modules is done automatically if `vendor/modules.txt` is present.
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Renovate will commit all files changed within the `vendor/` folder.
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#### Go binary version
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By default, Renovate will keep up with the very latest version of `go`.
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You can "pin" the `go` version that Renovate uses.
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Say you want Renovate to use Go version 1.14, you can do this by adding `go 1.14` to your `go.mod` file.
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We do not support pinning Go versions to a specific patch level, so you cannot use `go 1.14.12`, but you can use `go 1.14` in your `go.mod` file.
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