mirror of
https://github.com/ipfs/kubo.git
synced 2026-02-22 19:07:48 +08:00
104 lines
2.6 KiB
Go
104 lines
2.6 KiB
Go
package main
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import (
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"encoding/json"
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"fmt"
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"net/http"
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"os"
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semver "github.com/coreos/go-semver/semver"
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"github.com/jbenet/go-ipfs/Godeps/_workspace/src/github.com/jbenet/commander"
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u "github.com/jbenet/go-ipfs/util"
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)
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// The IPFS version.
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const (
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Version = "0.1.0"
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EndpointURLLatestReleases = "https://api.github.com/repos/jbenet/go-ipfs/tags"
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VersionErrorShort = `Warning: You are running version %s of go-ipfs. The latest version is %s.`
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VersionErrorLong = `
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Warning: You are running version %s of go-ipfs. The latest version is %s.
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Since this is alpha software, it is strongly recommended you update.
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You can update go-ipfs by running
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ipfs version update
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You can silence this message by running
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ipfs config update.check ignore
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`
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)
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var cmdIpfsVersion = &commander.Command{
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UsageLine: "version",
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Short: "Show ipfs version information.",
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Long: `ipfs version - Show ipfs version information.
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Returns the current version of ipfs and exits.
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`,
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Run: versionCmd,
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}
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var currentVersion *semver.Version
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func init() {
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var err error
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currentVersion, err = semver.NewVersion(Version)
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if err != nil {
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fmt.Printf("The const Version literal in version.go needs to be in semver format: %s \n", Version)
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os.Exit(1)
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}
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cmdIpfsVersion.Flag.Bool("number", false, "show only the number")
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}
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func versionCmd(c *commander.Command, _ []string) error {
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number := c.Flag.Lookup("number").Value.Get().(bool)
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if !number {
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u.POut("ipfs version ")
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}
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u.POut("%s\n", Version)
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return nil
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}
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func checkForUpdates() error {
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resp, err := http.Get(EndpointURLLatestReleases)
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if err != nil {
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// can't reach the endpoint, coud be firewall, or no internet connection or something else
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// will just silently move on
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return nil
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}
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var body interface{}
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_ = json.NewDecoder(resp.Body).Decode(&body)
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releases, ok := body.([]interface{})
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if !ok {
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// the response body does not seem to meet specified Github API format
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// https://developer.github.com/v3/repos/#list-tags
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// will just silently move on
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return nil
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}
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for _, r := range releases {
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release, ok := r.(map[string]interface{})
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if !ok {
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continue
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}
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tagName, ok := release["name"].(string)
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if !ok {
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continue
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}
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if len(tagName) > 0 && tagName[0] == 'v' {
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// both 'v0.1.0' and '0.1.0' semver tagname conventions can be encountered
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tagName = tagName[1:]
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}
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releaseVersion, err := semver.NewVersion(tagName)
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if err != nil {
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continue
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}
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if currentVersion.LessThan(*releaseVersion) {
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return fmt.Errorf(VersionErrorLong, Version, tagName)
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}
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}
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return nil
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}
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