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c538bfbc8f
create sub packages delete unused code delete code from not use command cmdRouter,cmdTest, cmdRundocs make command plugins check with gosimple,staticcheck,go vet,unused,unconvert
95 lines
2.2 KiB
Go
95 lines
2.2 KiB
Go
package commands
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import (
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"flag"
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"io"
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"os"
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"strings"
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"github.com/beego/bee/logger/colors"
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"github.com/beego/bee/utils"
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)
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// Command is the unit of execution
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type Command struct {
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// Run runs the command.
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// The args are the arguments after the command name.
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Run func(cmd *Command, args []string) int
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// PreRun performs an operation before running the command
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PreRun func(cmd *Command, args []string)
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// UsageLine is the one-line Usage message.
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// The first word in the line is taken to be the command name.
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UsageLine string
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// Short is the short description shown in the 'go help' output.
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Short string
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// Long is the long message shown in the 'go help <this-command>' output.
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Long string
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// Flag is a set of flags specific to this command.
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Flag flag.FlagSet
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// CustomFlags indicates that the command will do its own
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// flag parsing.
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CustomFlags bool
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// output out writer if set in SetOutput(w)
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output *io.Writer
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}
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var AvailableCommands = []*Command{}
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var cmdUsage = `Use {{printf "bee help %s" .Name | bold}} for more information.{{endline}}`
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// Name returns the command's name: the first word in the Usage line.
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func (c *Command) Name() string {
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name := c.UsageLine
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i := strings.Index(name, " ")
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if i >= 0 {
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name = name[:i]
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}
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return name
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}
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// SetOutput sets the destination for Usage and error messages.
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// If output is nil, os.Stderr is used.
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func (c *Command) SetOutput(output io.Writer) {
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c.output = &output
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}
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// Out returns the out writer of the current command.
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// If cmd.output is nil, os.Stderr is used.
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func (c *Command) Out() io.Writer {
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if c.output != nil {
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return *c.output
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}
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return colors.NewColorWriter(os.Stderr)
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}
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// Usage puts out the Usage for the command.
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func (c *Command) Usage() {
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utils.Tmpl(cmdUsage, c)
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os.Exit(2)
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}
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// Runnable reports whether the command can be run; otherwise
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// it is a documentation pseudo-command such as import path.
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func (c *Command) Runnable() bool {
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return c.Run != nil
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}
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func (c *Command) Options() map[string]string {
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options := make(map[string]string)
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c.Flag.VisitAll(func(f *flag.Flag) {
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defaultVal := f.DefValue
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if len(defaultVal) > 0 {
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options[f.Name+"="+defaultVal] = f.Usage
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} else {
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options[f.Name] = f.Usage
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}
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})
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return options
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}
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