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//go:build mage
package main
import (
"fmt"
"os"
"path/filepath"
"github.com/magefile/mage/mg"
"github.com/magefile/mage/sh"
)
const (
binaryName = "loadbars"
shareName = "loadbars"
)
// Default sets the default target (build).
func Default() { mg.Deps(Build) }
// Build compiles the loadbars binary.
func Build() error {
return sh.RunV("go", "build", "-o", binaryName, "./cmd/loadbars")
}
// Test runs the test suite.
func Test() error {
return sh.RunV("go", "test", "./...")
}
// Install builds and installs the binary, script, and NOTICE under DESTDIR.
// Usage: DESTDIR=/tmp/install mage install (or mage install for DESTDIR empty)
func Install() error {
mg.Deps(Build)
dest := getDestDir()
binDir := filepath.Join(dest, "usr", "bin")
shareDir := filepath.Join(dest, "usr", "share", shareName)
scriptsDir := filepath.Join(shareDir, "scripts")
if err := os.MkdirAll(binDir, 0755); err != nil {
return fmt.Errorf("mkdir %s: %w", binDir, err)
}
if err := os.MkdirAll(scriptsDir, 0755); err != nil {
return fmt.Errorf("mkdir %s: %w", scriptsDir, err)
}
if err := sh.Copy(filepath.Join(binDir, binaryName), binaryName); err != nil {
return fmt.Errorf("copy binary: %w", err)
}
if err := sh.Copy(filepath.Join(scriptsDir, "loadbars-remote.sh"), "scripts/loadbars-remote.sh"); err != nil {
return fmt.Errorf("copy script: %w", err)
}
if err := sh.Copy(filepath.Join(shareDir, "NOTICE"), "NOTICE"); err != nil {
return fmt.Errorf("copy NOTICE: %w", err)
}
fmt.Printf("Installed to %s (binary: %s/usr/bin/%s)\n", dest, dest, binaryName)
return nil
}
// Uninstall removes files installed by Install from DESTDIR.
func Uninstall() error {
return deinstall()
}
// Deinstall is an alias for Uninstall.
func Deinstall() error {
return deinstall()
}
func deinstall() error {
dest := getDestDir()
if dest == "" {
return fmt.Errorf("DESTDIR must be set to uninstall (e.g. DESTDIR=/tmp/install mage uninstall)")
}
paths := []string{
filepath.Join(dest, "usr", "bin", binaryName),
filepath.Join(dest, "usr", "share", shareName, "scripts", "loadbars-remote.sh"),
filepath.Join(dest, "usr", "share", shareName, "NOTICE"),
}
for _, p := range paths {
if err := os.Remove(p); err != nil && !os.IsNotExist(err) {
return fmt.Errorf("remove %s: %w", p, err)
}
}
// Remove empty dirs
_ = os.Remove(filepath.Join(dest, "usr", "share", shareName, "scripts"))
_ = os.Remove(filepath.Join(dest, "usr", "share", shareName))
fmt.Printf("Uninstalled from %s\n", dest)
return nil
}
func getDestDir() string {
if d := os.Getenv("DESTDIR"); d != "" {
return filepath.Clean(d)
}
return ""
}
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