selfupdate

Documentation

Overview

Package selfupdate replaces the running binary with the latest GitHub release after verifying its SHA-256 checksum.

Index

• func IsNewer(latest, current string) bool
• type Result
  • func Available(ctx context.Context, current string) (Result, error)
  • func Run(ctx context.Context, current string) (Result, error)

Functions

func IsNewer

func IsNewer(latest, current string) bool

IsNewer reports whether release version latest is strictly newer than the installed current. A plain string compare would "update" whenever the strings differ — downgrading a newer local/dev build, or re-installing an older release after the latest was yanked. semver.Compare needs a leading "v"; an unparseable current (e.g. a "dev" build) sorts below any real release, so it still updates.

Types

type Result

type Result struct {
	Updated bool
	From    string
	To      string
}

Result reports the outcome of a check/update.

func Available

func Available(ctx context.Context, current string) (Result, error)

Available reports whether a newer release exists (no changes applied).

func Run

func Run(ctx context.Context, current string) (Result, error)

Run downloads the latest release for this OS/arch, verifies its checksum and atomically replaces the current binary.