diff options
Diffstat (limited to 'usage.go')
| -rw-r--r-- | usage.go | 14 |
1 files changed, 3 insertions, 11 deletions
@@ -3,20 +3,12 @@ package arg import ( "fmt" "io" - "os" "strings" ) // the width of the left column const colWidth = 25 -// to allow monkey patching in tests -var ( - stdout io.Writer = os.Stdout - stderr io.Writer = os.Stderr - osExit = os.Exit -) - // Fail prints usage information to stderr and exits with non-zero status func (p *Parser) Fail(msg string) { p.failWithSubcommand(msg, p.cmd) @@ -39,9 +31,9 @@ func (p *Parser) FailSubcommand(msg string, subcommand ...string) error { // failWithSubcommand prints usage information for the given subcommand to stderr and exits with non-zero status func (p *Parser) failWithSubcommand(msg string, cmd *command) { - p.writeUsageForSubcommand(p.stderr, cmd) - fmt.Fprintln(p.stderr, "error:", msg) - p.osExit(-1) + p.writeUsageForSubcommand(p.config.Out, cmd) + fmt.Fprintln(p.config.Out, "error:", msg) + p.config.Exit(-1) } // WriteUsage writes usage information to the given writer |