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flags : Help string using reflection iteration over fields

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This commit is contained in:
bth 2026-01-18 14:48:58 -08:00
commit 0422b4a146
3 changed files with 43 additions and 13 deletions
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22
tag/tag.go
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@ -7,9 +7,10 @@ import (
)
type options struct {
query flags.Arg
date flags.Flag[string]
invert flags.Flag[bool]
Query flags.Arg
Date flags.Flag[string]
Invert flags.Flag[bool]
Help flags.Flag[bool]
}
func InitOpts() options {
@ -17,6 +18,7 @@ func InitOpts() options {
flags.Arg{"", "tag query"},
flags.Flag[string]{"--date", "-d", "", "date range"},
flags.Flag[bool]{"--invert", "-i", false, "invert match"},
flags.Flag[bool]{"--help", "-h", false, "show help"},
}
}
@ -26,25 +28,27 @@ func ParseArgs(args []string) options {
return opts
}
if !flags.HasDashPrefix(args[0]) {
opts.query.Val = args[0]
opts.Query.Val = args[0]
}
for i, arg := range args {
switch arg {
case opts.invert.Long, opts.invert.Short:
opts.invert.Val = true
case opts.date.Long, opts.date.Short:
case opts.Invert.Long, opts.Invert.Short:
opts.Invert.Val = true
case opts.Date.Long, opts.Date.Short:
if flags.MissingValueArg(args, i) {
flags.HelpMissingVal(arg)
break
}
opts.date.Val = args[i+1]
opts.Date.Val = args[i+1]
case opts.Help.Long, opts.Help.Short:
flags.Help("tag", opts)
return opts
}
}
return opts
}
func Tag(args []string) {
fmt.Printf("args: %#v\n", args)
opts := ParseArgs(args)
fmt.Println(opts)
}