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Diffstat (limited to 'src/cmd/go/internal/base/base.go')
| -rw-r--r-- | src/cmd/go/internal/base/base.go | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/cmd/go/internal/base/base.go b/src/cmd/go/internal/base/base.go index db3ebef933..004588c732 100644 --- a/src/cmd/go/internal/base/base.go +++ b/src/cmd/go/internal/base/base.go @@ -56,6 +56,20 @@ var Go = &Command{ // Commands initialized in package main } +// hasFlag reports whether a command or any of its subcommands contain the given +// flag. +func hasFlag(c *Command, name string) bool { + if f := c.Flag.Lookup(name); f != nil { + return true + } + for _, sub := range c.Commands { + if hasFlag(sub, name) { + return true + } + } + return false +} + // LongName returns the command's long name: all the words in the usage line between "go" and a flag or argument, func (c *Command) LongName() string { name := c.UsageLine |