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refactor: refactor the gflag parse to sub-pkg /gflag
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,4 +1,4 @@ | ||
| package helper | ||
| package gflag | ||
|
|
||
| import ( | ||
| "fmt" | ||
|
|
||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,100 @@ | ||
| package gflag | ||
|
|
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| import ( | ||
| "strings" | ||
|
|
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| "github.com/gookit/gcli/v3/helper" | ||
| "github.com/gookit/goutil/arrutil" | ||
| "github.com/gookit/goutil/comdef" | ||
| "github.com/gookit/goutil/strutil" | ||
| ) | ||
|
|
||
| func sepStr(seps []string) string { | ||
| if len(seps) > 0 { | ||
| return seps[0] | ||
| } | ||
| return comdef.DefaultSep | ||
| } | ||
|
|
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| // allowed keys on struct tag. | ||
| var flagTagKeys = arrutil.Strings{"name", "shorts", "desc", "default", "required"} | ||
|
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| // parse tag named k-v value. item split by ';' | ||
| // | ||
| // eg: "name=int0;shorts=i;required=true;desc=int option message" | ||
| // | ||
| // supported field name: | ||
| // | ||
| // name | ||
| // desc | ||
| // shorts | ||
| // required | ||
| // default | ||
| func parseNamedRule(name, rule string) (mp map[string]string) { | ||
| ss := strutil.Split(rule, ";") | ||
| if len(ss) == 0 { | ||
| return | ||
| } | ||
|
|
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| mp = make(map[string]string, len(flagTagKeys)) | ||
| for _, s := range ss { | ||
| if strings.ContainsRune(s, '=') == false { | ||
| helper.Panicf("parse tag error on field '%s': item must match `KEY=VAL`", name) | ||
| } | ||
|
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| kvNodes := strings.SplitN(s, "=", 2) | ||
| key, val := kvNodes[0], strings.TrimSpace(kvNodes[1]) | ||
| if !flagTagKeys.Has(key) { | ||
| helper.Panicf("parse tag error on field '%s': invalid key name '%s'", name, key) | ||
| } | ||
|
|
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| mp[key] = val | ||
| } | ||
| return | ||
| } | ||
|
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| // ParseSimpleRule struct tag value use simple rule. each item split by ';' | ||
| // | ||
| // - format: "desc;required;default;shorts" | ||
| // | ||
| // eg: | ||
| // | ||
| // "int option message;required;i" | ||
| // "int option message;;a,b" | ||
| // "int option message;;a,b;23" | ||
| // | ||
| // returns field name: | ||
| // | ||
| // name | ||
| // desc | ||
| // shorts | ||
| // required | ||
| // default | ||
| func ParseSimpleRule(name, rule string) (mp map[string]string) { | ||
| ss := strutil.SplitNTrimmed(rule, ";", 4) | ||
| ln := len(ss) | ||
| if ln == 0 { | ||
| return | ||
| } | ||
|
|
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| mp = make(map[string]string, ln) | ||
| mp["desc"] = ss[0] | ||
| if ln == 1 { | ||
| return | ||
| } | ||
|
|
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| required := ss[1] | ||
| if required == "required" { | ||
| required = "true" | ||
| } | ||
|
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| mp["required"] = required | ||
|
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| // has shorts and default | ||
| if ln > 3 { | ||
| mp["default"], mp["shorts"] = ss[2], ss[3] | ||
| } else if ln > 2 { | ||
| mp["default"] = ss[2] | ||
| } | ||
| return | ||
| } |
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