// Plugin attempts to find and execute a plugin based on a command.
//
// Exit code 99 means the plugin was never executed. Code 1 means the program
// exited badly.
func Plugin(command string, args []string) {
cwd, err := os.Getwd()
if err != nil {
msg.ExitCode(99)
msg.Die("Could not get working directory: %s", err)
}
cmd := "glide-" + command
var fullcmd string
if fullcmd, err = exec.LookPath(cmd); err != nil {
fullcmd = cwd + "/" + cmd
if _, err := os.Stat(fullcmd); err != nil {
msg.ExitCode(99)
msg.Die("Command %s does not exist.", cmd)
}
}
// Turning os.Args first argument from `glide` to `glide-command`
args[0] = cmd
// Removing the first argument (command)
removed := false
for i, v := range args {
if removed == false && v == command {
args = append(args[:i], args[i+1:]...)
removed = true
}
}
pa := os.ProcAttr{
Files: []*os.File{os.Stdin, os.Stdout, os.Stderr},
Dir: cwd,
}
msg.Debug("Delegating to plugin %s (%v)\n", fullcmd, args)
proc, err := os.StartProcess(fullcmd, args, &pa)
if err != nil {
msg.Err("Failed to execute %s: %s", cmd, err)
os.Exit(98)
}
if _, err := proc.Wait(); err != nil {
msg.Err(err.Error())
os.Exit(1)
}
}
// EnsureConfig loads and returns a config file.
//
// Any error will cause an immediate exit, with an error printed to Stderr.
func EnsureConfig() *cfg.Config {
yamlpath, err := gpath.Glide()
if err != nil {
msg.ExitCode(2)
msg.Die("Failed to find %s file in directory tree: %s", gpath.GlideFile, err)
}
yml, err := ioutil.ReadFile(yamlpath)
if err != nil {
msg.ExitCode(2)
msg.Die("Failed to load %s: %s", yamlpath, err)
}
conf, err := cfg.ConfigFromYaml(yml)
if err != nil {
msg.ExitCode(3)
msg.Die("Failed to parse %s: %s", yamlpath, err)
}
b := filepath.Dir(yamlpath)
buildContext, err := util.GetBuildContext()
if err != nil {
msg.Die("Failed to build an import context while ensuring config: %s", err)
}
cwd, err := os.Getwd()
if err != nil {
msg.Err("Unable to get the current working directory")
} else {
// Determining a package name requires a relative path
b, err = filepath.Rel(b, cwd)
if err == nil {
name := buildContext.PackageName(b)
if name != conf.Name {
msg.Warn("The name listed in the config file (%s) does not match the current location (%s)", conf.Name, name)
}
} else {
msg.Warn("Problem finding the config file path (%s) relative to the current directory (%s): %s", b, cwd, err)
}
}
err = mirrors.Load()
if err != nil {
msg.Err("Unable to load mirrors: %s", err)
}
return conf
}
// EnsureConfig loads and returns a config file.
//
// Any error will cause an immediate exit, with an error printed to Stderr.
func EnsureConfig() *cfg.Config {
yamlpath, err := gpath.Glide()
if err != nil {
msg.ExitCode(2)
msg.Die("Failed to find %s file in directory tree: %s", gpath.GlideFile, err)
}
yml, err := ioutil.ReadFile(yamlpath)
if err != nil {
msg.ExitCode(2)
msg.Die("Failed to load %s: %s", yamlpath, err)
}
conf, err := cfg.ConfigFromYaml(yml)
if err != nil {
msg.ExitCode(3)
msg.Die("Failed to parse %s: %s", yamlpath, err)
}
return conf
}