hugo/commands/genautocomplete.go
Bjørn Erik Pedersen 3f0f7eed68 Improve error handling in commands
Cobra, the CLI commander in use in Hugo, has some long awaited improvements in the error handling department.
This enables a more centralized error handling approach.

This commit introduces that by changing all the command funcs to `RunE`:

* The core part of the error logging, usage logging and `os.Exit(-1)` is now performed in one place and that one place only.
* The usage text is now only shown on invalid arguments etc. (user errors)

Fixes #1502
2015-12-02 07:07:05 -07:00

56 lines
1.6 KiB
Go

package commands
import (
"github.com/spf13/cobra"
jww "github.com/spf13/jwalterweatherman"
)
var autocompleteTarget string
// bash for now (zsh and others will come)
var autocompleteType string
var genautocompleteCmd = &cobra.Command{
Use: "autocomplete",
Short: "Generate shell autocompletion script for Hugo",
Long: `Generates a shell autocompletion script for Hugo.
NOTE: The current version supports Bash only.
This should work for *nix systems with Bash installed.
By default, the file is written directly to /etc/bash_completion.d
for convenience, and the command may need superuser rights, e.g.:
$ sudo hugo genautocomplete
Add ` + "`--completionfile=/path/to/file`" + ` flag to set alternative
file-path and name.
Logout and in again to reload the completion scripts,
or just source them in directly:
$ . /etc/bash_completion`,
RunE: func(cmd *cobra.Command, args []string) error {
if autocompleteType != "bash" {
return newUserError("Only Bash is supported for now")
}
err := cmd.Root().GenBashCompletionFile(autocompleteTarget)
if err != nil {
return err
} else {
jww.FEEDBACK.Println("Bash completion file for Hugo saved to", autocompleteTarget)
}
return nil
},
}
func init() {
genautocompleteCmd.PersistentFlags().StringVarP(&autocompleteTarget, "completionfile", "", "/etc/bash_completion.d/hugo.sh", "Autocompletion file")
genautocompleteCmd.PersistentFlags().StringVarP(&autocompleteType, "type", "", "bash", "Autocompletion type (currently only bash supported)")
// For bash-completion
genautocompleteCmd.PersistentFlags().SetAnnotation("completionfile", cobra.BashCompFilenameExt, []string{})
}