diff options
Diffstat (limited to 'Godeps/_workspace/src/gopkg.in/urfave/cli.v1/errors.go')
-rw-r--r-- | Godeps/_workspace/src/gopkg.in/urfave/cli.v1/errors.go | 92 |
1 files changed, 0 insertions, 92 deletions
diff --git a/Godeps/_workspace/src/gopkg.in/urfave/cli.v1/errors.go b/Godeps/_workspace/src/gopkg.in/urfave/cli.v1/errors.go deleted file mode 100644 index ea551be16..000000000 --- a/Godeps/_workspace/src/gopkg.in/urfave/cli.v1/errors.go +++ /dev/null @@ -1,92 +0,0 @@ -package cli - -import ( - "fmt" - "io" - "os" - "strings" -) - -// OsExiter is the function used when the app exits. If not set defaults to os.Exit. -var OsExiter = os.Exit - -// ErrWriter is used to write errors to the user. This can be anything -// implementing the io.Writer interface and defaults to os.Stderr. -var ErrWriter io.Writer = os.Stderr - -// MultiError is an error that wraps multiple errors. -type MultiError struct { - Errors []error -} - -// NewMultiError creates a new MultiError. Pass in one or more errors. -func NewMultiError(err ...error) MultiError { - return MultiError{Errors: err} -} - -// Error implents the error interface. -func (m MultiError) Error() string { - errs := make([]string, len(m.Errors)) - for i, err := range m.Errors { - errs[i] = err.Error() - } - - return strings.Join(errs, "\n") -} - -// ExitCoder is the interface checked by `App` and `Command` for a custom exit -// code -type ExitCoder interface { - error - ExitCode() int -} - -// ExitError fulfills both the builtin `error` interface and `ExitCoder` -type ExitError struct { - exitCode int - message string -} - -// NewExitError makes a new *ExitError -func NewExitError(message string, exitCode int) *ExitError { - return &ExitError{ - exitCode: exitCode, - message: message, - } -} - -// Error returns the string message, fulfilling the interface required by -// `error` -func (ee *ExitError) Error() string { - return ee.message -} - -// ExitCode returns the exit code, fulfilling the interface required by -// `ExitCoder` -func (ee *ExitError) ExitCode() int { - return ee.exitCode -} - -// HandleExitCoder checks if the error fulfills the ExitCoder interface, and if -// so prints the error to stderr (if it is non-empty) and calls OsExiter with the -// given exit code. If the given error is a MultiError, then this func is -// called on all members of the Errors slice. -func HandleExitCoder(err error) { - if err == nil { - return - } - - if exitErr, ok := err.(ExitCoder); ok { - if err.Error() != "" { - fmt.Fprintln(ErrWriter, err) - } - OsExiter(exitErr.ExitCode()) - return - } - - if multiErr, ok := err.(MultiError); ok { - for _, merr := range multiErr.Errors { - HandleExitCoder(merr) - } - } -} |