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utils.go
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/
utils.go
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package main
import (
"fmt"
"io/fs"
"strings"
"unicode"
"unicode/utf8"
"github.com/gobwas/glob"
)
func newGlobMatcher(ptn string) (func(string) bool, error) {
g, err := glob.Compile(ptn)
if err != nil {
return nil, fmt.Errorf("inalid glob pattern: %w", err)
}
return g.Match, nil
}
func newGlobFileMatcher(ptn string) (func(fs.FileInfo) bool, error) {
m, err := newGlobMatcher(ptn)
if err != nil {
return nil, err
}
return func(fi fs.FileInfo) bool {
return m(fi.Name())
}, nil
}
func camelToSnake(s string) string {
const underscore = '_'
var result strings.Builder
result.Grow(len(s) + 5)
var buf [utf8.UTFMax]byte
var prev rune
var pos int
for i, r := range s {
pos += utf8.EncodeRune(buf[:], r)
// read next rune
var next rune
if pos < len(s) {
next, _ = utf8.DecodeRuneInString(s[pos:])
}
if i > 0 && prev != underscore && r != underscore && unicode.IsUpper(r) && (unicode.IsLower(next)) {
result.WriteRune(underscore)
}
result.WriteRune(unicode.ToUpper(r))
prev = r
}
return result.String()
}
// un-escape -types and -files globs: '*' -> *, "foo" -> foo
// if first and last characters are quotes, remove them.
func unescapeGlob(s string) string {
if len(s) >= 2 && ((s[0] == '"' && s[len(s)-1] == '"') || (s[0] == '\'' && s[len(s)-1] == '\'')) {
return s[1 : len(s)-1]
}
return s
}