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flags.Help takes a summary string

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This commit is contained in:
bth 2026-01-20 20:17:32 -08:00
commit f645e18b5b
5 changed files with 45 additions and 32 deletions
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21
sort/sort.go
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@ -7,12 +7,15 @@ import (
"slices"
"strings"
cmdpkg "github.com/brtholomy/um/go/cmd"
"github.com/brtholomy/um/go/cmd"
"github.com/brtholomy/um/go/flags"
"github.com/brtholomy/um/go/pipe"
)
const cmd = cmdpkg.Sort
const (
CMD = cmd.Sort
SUMMARY = "sort a filelist using a provided key filelist"
)
type options struct {
Source flags.Flag[string]
@ -42,15 +45,15 @@ func parseArgs(args []string) options {
case arg == opts.Write.Long || arg == opts.Write.Short:
opts.Write.Val = true
case arg == opts.Help.Long || arg == opts.Help.Short:
flags.Help(cmd, opts)
flags.Help(CMD, SUMMARY, opts)
default:
flags.HelpInvalidArg(cmd, arg)
flags.Help(cmd, opts)
flags.HelpInvalidArg(CMD, arg)
flags.Help(CMD, SUMMARY, opts)
}
}
if !opts.Key.IsSet() {
flags.HelpRequired(cmd, opts.Key.Long)
flags.Help(cmd, opts)
flags.HelpRequired(CMD, opts.Key.Long)
flags.Help(CMD, SUMMARY, opts)
}
return opts
}
@ -69,7 +72,7 @@ func fileListSplit(f string) []string {
dat, err := os.ReadFile(f)
if err != nil {
// if this fails all is lost. just exit.
log.Fatalf("um %s: error opening file: %s\n%s", cmd, f, err)
log.Fatalf("um %s: error opening file: %s\n%s", CMD, f, err)
}
return strings.Split(string(dat), pipe.Newline)
}
@ -104,7 +107,7 @@ func sort(sslice []string, kmap map[string]int) string {
func write(file string, content string) {
if err := os.WriteFile(file, []byte(content), 0664); err != nil {
log.Fatalf("um %s: error writing file: %s\n%s", cmd, file, err)
log.Fatalf("um %s: error writing file: %s\n%s", CMD, file, err)
}
}