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Enable caching by default with default input (#332)
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dsame authored Mar 10, 2023
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99 changes: 66 additions & 33 deletions README.md
Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,16 @@ This action sets up a go environment for use in actions by:
- Optionally downloading and caching a version of Go by version and adding to `PATH`.
- Registering problem matchers for error output.

# V4

The V4 edition of the action offers:

- Enabled caching by default

The action will try to enable caching unless the `cache` input is explicitly set to false.

Please see "[Caching dependency files and build outputs](https://github.com/actions/setup-go#caching-dependency-files-and-build-outputs)" for more information.

# V3

The V3 edition of the action offers:
Expand All @@ -19,9 +29,14 @@ The V3 edition of the action offers:
- stable and oldstable aliases
- Bug Fixes (including issues around version matching and semver)

The action will first check the local cache for a version match. If a version is not found locally, it will pull it from the `main` branch of the [go-versions](https://github.com/actions/go-versions/blob/main/versions-manifest.json) repository. On miss or failure, it will fall back to downloading directly from [go dist](https://storage.googleapis.com/golang). To change the default behavior, please use the [check-latest input](#check-latest-version).
The action will first check the local cache for a version match. If a version is not found locally, it will pull it from
the `main` branch of the [go-versions](https://github.com/actions/go-versions/blob/main/versions-manifest.json)
repository. On miss or failure, it will fall back to downloading directly
from [go dist](https://storage.googleapis.com/golang). To change the default behavior, please use
the [check-latest input](#check-latest-version).

**Note:** The `setup-go` action uses executable binaries which are built by Golang side. The action does not build golang from source code.
**Note:** The `setup-go` action uses executable binaries which are built by Golang side. The action does not build
golang from source code.

Matching by [semver spec](https://github.com/npm/node-semver):

Expand Down Expand Up @@ -78,14 +93,17 @@ steps:
- run: go run hello.go
```
## Check latest version
The `check-latest` flag defaults to `false`. Use the default or set `check-latest` to `false` if you prefer stability and if you want to ensure a specific Go version is always used.
The `check-latest` flag defaults to `false`. Use the default or set `check-latest` to `false` if you prefer stability
and if you want to ensure a specific Go version is always used.

If `check-latest` is set to `true`, the action first checks if the cached version is the latest one. If the locally cached version is not the most up-to-date, a Go version will then be downloaded. Set `check-latest` to `true` if you want the most up-to-date Go version to always be used.
If `check-latest` is set to `true`, the action first checks if the cached version is the latest one. If the locally
cached version is not the most up-to-date, a Go version will then be downloaded. Set `check-latest` to `true` if you
want the most up-to-date Go version to always be used.

> Setting `check-latest` to `true` has performance implications as downloading Go versions is slower than using cached versions.
> Setting `check-latest` to `true` has performance implications as downloading Go versions is slower than using cached
> versions.

```yaml
steps:
Expand All @@ -99,11 +117,14 @@ steps:

## Using stable/oldstable aliases

If `stable` is provided, action will get the latest stable version from the [`go-versions`](https://github.com/actions/go-versions/blob/main/versions-manifest.json) repository manifest.
If `stable` is provided, action will get the latest stable version from
the [`go-versions`](https://github.com/actions/go-versions/blob/main/versions-manifest.json) repository manifest.

If `oldstable` is provided, when current release is 1.19.x, action will resolve version as 1.18.x, where x is the latest patch release.
If `oldstable` is provided, when current release is 1.19.x, action will resolve version as 1.18.x, where x is the latest
patch release.

**Note:** using these aliases will result in same version as using corresponding minor release with `check-latest` input set to `true`
**Note:** using these aliases will result in same version as using corresponding minor release with `check-latest` input
set to `true`

```yaml
steps:
Expand All @@ -125,48 +146,47 @@ steps:

## Caching dependency files and build outputs:

The action has a built-in functionality for caching and restoring go modules and build outputs. It uses [actions/cache](https://github.com/actions/cache) under the hood but requires less configuration settings. The `cache` input is optional, and caching is turned off by default.
The action has a built-in functionality for caching and restoring go modules and build outputs. It
uses [toolkit/cache](https://github.com/actions/toolkit/tree/main/packages/cache) under the hood but requires less configuration settings.
The `cache` input is optional, and caching is turned on by default.

The action defaults to search for the dependency file - go.sum in the repository root, and uses its hash as a part of the cache key. Use `cache-dependency-path` input for cases when multiple dependency files are used, or they are located in different subdirectories.
The action defaults to search for the dependency file - go.sum in the repository root, and uses its hash as a part of
the cache key. Use `cache-dependency-path` input for cases when multiple dependency files are used, or they are located
in different subdirectories.

**Caching without specifying dependency file path**
```yaml
steps:
- uses: actions/checkout@v3
- uses: actions/setup-go@v3
with:
go-version: '1.17'
check-latest: true
cache: true
- run: go run hello.go
```
If some problem that prevents success caching happens then the action issues the warning in the log and continues the execution of the pipeline.

**Caching in monorepos**

```yaml
steps:
- uses: actions/checkout@v3
- uses: actions/setup-go@v3
with:
go-version: '1.17'
check-latest: true
cache: true
cache-dependency-path: subdir/go.sum
- run: go run hello.go
```

## Getting go version from the go.mod file

The `go-version-file` input accepts a path to a `go.mod` file or a `go.work` file that contains the version of Go to be used by a project. As the `go.mod` file contains only major and minor (e.g. 1.18) tags, the action will search for the latest available patch version sequentially in the runner's directory with the cached tools, in the [versions-manifest.json](https://github.com/actions/go-versions/blob/main/versions-manifest.json) file or at the go servers.
The `go-version-file` input accepts a path to a `go.mod` file or a `go.work` file that contains the version of Go to be
used by a project. As the `go.mod` file contains only major and minor (e.g. 1.18) tags, the action will search for the
latest available patch version sequentially in the runner's directory with the cached tools, in
the [versions-manifest.json](https://github.com/actions/go-versions/blob/main/versions-manifest.json) file or at the go
servers.

If both the `go-version` and the `go-version-file` inputs are provided then the `go-version` input is used.
> The action will search for the `go.mod` file relative to the repository root

```yaml
steps:
- uses: actions/checkout@v3
- uses: actions/setup-go@v3
with:
go-version-file: 'path/to/go.mod'
- run: go version
- uses: actions/checkout@v3
- uses: actions/setup-go@v3
with:
go-version-file: 'path/to/go.mod'
- run: go version
```

## Matrix testing
Expand Down Expand Up @@ -195,13 +215,23 @@ The `go-version` input supports the following syntax:
- Specific versions: `1.15`, `1.16.1`, `1.17.0-rc.2`, `1.16.0-beta.1`
- SemVer's version range syntax: `^1.13.1`, `>=1.18.0-rc.1`

For more information about semantic versioning, please refer to [semver](https://github.com/npm/node-semver) documentation.
For more information about semantic versioning, please refer to [semver](https://github.com/npm/node-semver)
documentation.

## Using `setup-go` on GHES

`setup-go` comes pre-installed on the appliance with GHES if Actions is enabled. When dynamically downloading Go distributions, `setup-go` downloads distributions from [`actions/go-versions`](https://github.com/actions/go-versions) on github.com (outside of the appliance). These calls to `actions/go-versions` are made via unauthenticated requests, which are limited to [60 requests per hour per IP](https://docs.github.com/en/rest/overview/resources-in-the-rest-api#rate-limiting). If more requests are made within the time frame, then you will start to see rate-limit errors during downloading that looks like: `##[error]API rate limit exceeded for...`. After that error the action will try to download versions directly from https://storage.googleapis.com/golang, but it also can have rate limit so it's better to put token.
`setup-go` comes pre-installed on the appliance with GHES if Actions is enabled. When dynamically downloading Go
distributions, `setup-go` downloads distributions from [`actions/go-versions`](https://github.com/actions/go-versions)
on github.com (outside of the appliance). These calls to `actions/go-versions` are made via unauthenticated requests,
which are limited
to [60 requests per hour per IP](https://docs.github.com/en/rest/overview/resources-in-the-rest-api#rate-limiting). If
more requests are made within the time frame, then you will start to see rate-limit errors during downloading that looks
like: `##[error]API rate limit exceeded for...`. After that error the action will try to download versions directly
from https://storage.googleapis.com/golang, but it also can have rate limit so it's better to put token.

To get a higher rate limit, you can [generate a personal access token on github.com](https://github.com/settings/tokens/new) and pass it as the `token` input for the action:
To get a higher rate limit, you
can [generate a personal access token on github.com](https://github.com/settings/tokens/new) and pass it as the `token`
input for the action:

```yaml
uses: actions/setup-go@v3
Expand All @@ -210,7 +240,10 @@ with:
go-version: 1.18
```

If the runner is not able to access github.com, any Go versions requested during a workflow run must come from the runner's tool cache. See "[Setting up the tool cache on self-hosted runners without internet access](https://docs.github.com/en/enterprise-server@3.2/admin/github-actions/managing-access-to-actions-from-githubcom/setting-up-the-tool-cache-on-self-hosted-runners-without-internet-access)" for more information.
If the runner is not able to access github.com, any Go versions requested during a workflow run must come from the
runner's tool cache.
See "[Setting up the tool cache on self-hosted runners without internet access](https://docs.github.com/en/enterprise-server@3.2/admin/github-actions/managing-access-to-actions-from-githubcom/setting-up-the-tool-cache-on-self-hosted-runners-without-internet-access)"
for more information.

# License

Expand Down
2 changes: 1 addition & 1 deletion action.yml
Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,7 @@ inputs:
default: ${{ github.server_url == 'https://github.com' && github.token || '' }}
cache:
description: Used to specify whether caching is needed. Set to true, if you'd like to enable caching.
default: false
default: true
cache-dependency-path:
description: 'Used to specify the path to a dependency file - go.sum'
architecture:
Expand Down
19 changes: 16 additions & 3 deletions dist/cache-save/index.js
Original file line number Diff line number Diff line change
Expand Up @@ -60356,7 +60356,7 @@ function run() {
if (typeof error === 'string') {
message = error;
}
core.setFailed(message);
core.warning(message);
}
});
}
Expand All @@ -60379,6 +60379,10 @@ const cachePackages = () => __awaiter(void 0, void 0, void 0, function* () {
if (nonExistingPaths.length) {
logWarning(`Cache folder path is retrieved but doesn't exist on disk: ${nonExistingPaths.join(', ')}`);
}
if (!primaryKey) {
core.info('Primary key was not generated. Please check the log messages above for more errors or information');
return;
}
if (primaryKey === state) {
core.info(`Cache hit occurred on the primary key ${primaryKey}, not saving cache.`);
return;
Expand Down Expand Up @@ -60457,8 +60461,17 @@ const getPackageManagerInfo = (packageManager) => __awaiter(void 0, void 0, void
});
exports.getPackageManagerInfo = getPackageManagerInfo;
const getCacheDirectoryPath = (packageManagerInfo) => __awaiter(void 0, void 0, void 0, function* () {
const pathList = yield Promise.all(packageManagerInfo.cacheFolderCommandList.map((command) => __awaiter(void 0, void 0, void 0, function* () { return exports.getCommandOutput(command); })));
const cachePaths = pathList.filter(item => item);
const pathOutputs = yield Promise.allSettled(packageManagerInfo.cacheFolderCommandList.map((command) => __awaiter(void 0, void 0, void 0, function* () { return exports.getCommandOutput(command); })));
const results = pathOutputs.map(item => {
if (item.status === 'fulfilled') {
return item.value;
}
else {
core.info(`[warning]getting cache directory path failed: ${item.reason}`);
}
return '';
});
const cachePaths = results.filter(item => item);
if (!cachePaths.length) {
throw new Error(`Could not get cache folder paths.`);
}
Expand Down
20 changes: 17 additions & 3 deletions dist/setup/index.js
Original file line number Diff line number Diff line change
Expand Up @@ -63130,8 +63130,17 @@ const getPackageManagerInfo = (packageManager) => __awaiter(void 0, void 0, void
});
exports.getPackageManagerInfo = getPackageManagerInfo;
const getCacheDirectoryPath = (packageManagerInfo) => __awaiter(void 0, void 0, void 0, function* () {
const pathList = yield Promise.all(packageManagerInfo.cacheFolderCommandList.map((command) => __awaiter(void 0, void 0, void 0, function* () { return exports.getCommandOutput(command); })));
const cachePaths = pathList.filter(item => item);
const pathOutputs = yield Promise.allSettled(packageManagerInfo.cacheFolderCommandList.map((command) => __awaiter(void 0, void 0, void 0, function* () { return exports.getCommandOutput(command); })));
const results = pathOutputs.map(item => {
if (item.status === 'fulfilled') {
return item.value;
}
else {
core.info(`[warning]getting cache directory path failed: ${item.reason}`);
}
return '';
});
const cachePaths = results.filter(item => item);
if (!cachePaths.length) {
throw new Error(`Could not get cache folder paths.`);
}
Expand Down Expand Up @@ -63605,7 +63614,12 @@ function run() {
if (cache && cache_utils_1.isCacheFeatureAvailable()) {
const packageManager = 'default';
const cacheDependencyPath = core.getInput('cache-dependency-path');
yield cache_restore_1.restoreCache(parseGoVersion(goVersion), packageManager, cacheDependencyPath);
try {
yield cache_restore_1.restoreCache(parseGoVersion(goVersion), packageManager, cacheDependencyPath);
}
catch (error) {
core.warning(`Restore cache failed: ${error.message}`);
}
}
// add problem matchers
const matchersPath = path_1.default.join(__dirname, '../..', 'matchers.json');
Expand Down
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