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Get the latest release version from GitHub Release
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,65 @@ | ||
| package command | ||
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| import ( | ||
| "fmt" | ||
| "strings" | ||
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| "github.com/minamijoyo/tfupdate/release" | ||
| flag "github.com/spf13/pflag" | ||
| ) | ||
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| // ReleaseCommand is a command which gets the latest release version. | ||
| type ReleaseCommand struct { | ||
| Meta | ||
| url string | ||
| } | ||
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| // Run runs the procedure of this command. | ||
| func (c *ReleaseCommand) Run(args []string) int { | ||
| cmdFlags := flag.NewFlagSet("release", flag.ContinueOnError) | ||
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| if err := cmdFlags.Parse(args); err != nil { | ||
| c.UI.Error(fmt.Sprintf("failed to parse arguments: %s", err)) | ||
| return 1 | ||
| } | ||
|
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| if len(cmdFlags.Args()) != 1 { | ||
| c.UI.Error(fmt.Sprintf("The command expects 1 argument, but got %#v", cmdFlags.Args())) | ||
| c.UI.Error(c.Help()) | ||
| return 1 | ||
| } | ||
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| c.url = cmdFlags.Arg(0) | ||
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| r, err := release.NewRelease("github", c.url) | ||
| if err != nil { | ||
| c.UI.Error(err.Error()) | ||
| return 1 | ||
| } | ||
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| v, err := release.ResolveVersionAlias(r, "latest") | ||
| if err != nil { | ||
| c.UI.Error(err.Error()) | ||
| return 1 | ||
| } | ||
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| c.UI.Output(v) | ||
| return 0 | ||
| } | ||
|
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| // Help returns long-form help text. | ||
| func (c *ReleaseCommand) Help() string { | ||
| helpText := ` | ||
| Usage: tfupdate release [options] <URL> | ||
| Arguments | ||
| URL A URL of the release repository | ||
| (e.g. https://github.com/terraform-providers/terraform-provider-aws) | ||
| ` | ||
| return strings.TrimSpace(helpText) | ||
| } | ||
|
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| // Synopsis returns one-line help text. | ||
| func (c *ReleaseCommand) Synopsis() string { | ||
| return "Get the latest release version" | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,52 @@ | ||
| package release | ||
|
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| import ( | ||
| "context" | ||
| "fmt" | ||
| "regexp" | ||
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| "github.com/google/go-github/v28/github" | ||
| "github.com/pkg/errors" | ||
| ) | ||
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| // GitHubRelease is a release implementation which provides version information with GitHub Release. | ||
| type GitHubRelease struct { | ||
| client *github.Client | ||
| owner string | ||
| repo string | ||
| } | ||
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| // NewGitHubRelease is a factory method which returns an GitHubRelease instance. | ||
| func NewGitHubRelease(url string) (Release, error) { | ||
| re := regexp.MustCompile(`https://github.com/(.+)/(.+)`) | ||
| matched := re.FindStringSubmatch(url) | ||
| if len(matched) != 3 { | ||
| return nil, errors.Errorf("failed to parse url: %s, matched: %#v", url, matched) | ||
| } | ||
| owner := matched[1] | ||
| repo := matched[2] | ||
|
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| return &GitHubRelease{ | ||
| client: github.NewClient(nil), | ||
| owner: owner, | ||
| repo: repo, | ||
| }, nil | ||
| } | ||
|
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| // Latest returns a latest version. | ||
| func (r *GitHubRelease) Latest() (string, error) { | ||
| release, _, err := r.client.Repositories.GetLatestRelease(context.Background(), r.owner, r.repo) | ||
|
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| if err != nil { | ||
| return "", fmt.Errorf("failed to get the latest release from github.com/%s/%s: %s", r.owner, r.repo, err) | ||
| } | ||
|
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| name := *release.Name | ||
|
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| // if a name starts with `v`, remove it. | ||
| if name[0] == 'v' { | ||
| return name[1:], nil | ||
| } | ||
|
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| return name, nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,32 @@ | ||
| package release | ||
|
|
||
| import ( | ||
| "github.com/pkg/errors" | ||
| ) | ||
|
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| // Release is an interface which provides version information. | ||
| type Release interface { | ||
| // Latest returns a latest version. | ||
| Latest() (string, error) | ||
| } | ||
|
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| // NewRelease is a factory method which returns a Release implementation. | ||
| func NewRelease(releaseType string, url string) (Release, error) { | ||
| switch releaseType { | ||
| case "github": | ||
| return NewGitHubRelease(url) | ||
| default: | ||
| return nil, errors.Errorf("failed to new release. unknown type: %s", releaseType) | ||
| } | ||
| } | ||
|
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| // ResolveVersionAlias resolves a version alias. | ||
| func ResolveVersionAlias(r Release, alias string) (string, error) { | ||
| switch alias { | ||
| case "latest": | ||
| return r.Latest() | ||
| default: | ||
| // if an alias does not match keywords, just return alias as a version. | ||
| return alias, nil | ||
| } | ||
| } |