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♻️ Refactor Incremental Generator to single function with options

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This commit is contained in:
Dan Jones 2025-03-14 18:33:30 -05:00
commit 586fe4f1de
4 changed files with 176 additions and 182 deletions
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55
generators.go
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@ -7,7 +7,6 @@ import (
"errors"
"fmt"
"hash"
"strconv"
"github.com/google/uuid"
"github.com/gosimple/slug"
@ -64,60 +63,6 @@ func UUID() Generator {
return uuidGen
}
// Incremental generates a name that is a series of integers starting at 0
func Incremental() Generator {
return IncrementalWithStartAndStep(0, 1)
}
// IncrementalFormat generates a name that is a series of integers starting at 0, formatted with Printf
// This is mostly likely useful with a format like "%02d"
func IncrementalFormat(format string) Generator {
return IncrementalFormatWithStartAndStep(0, 1, format)
}
// IncrementalWithStart generates a name that is a series of integers starting at the specified number
func IncrementalWithStart(start int) Generator {
return IncrementalWithStartAndStep(start, 1)
}
// IncrementalFormatWithStart generates a name that is a series of integers starting at the specified number, formatted with Printf
func IncrementalFormatWithStart(start int, format string) Generator {
return IncrementalFormatWithStartAndStep(start, 1, format)
}
// IncrementalWithStep generates a name that is a series of integers, starting at 0, and increasing the specified number each time
func IncrementalWithStep(step int) Generator {
return IncrementalWithStartAndStep(0, step)
}
// IncrementalFormatWithStep generates a name that is a series of integers, starting at 0, and increasing the specified number each time,
// formatted with Printf
func IncrementalFormatWithStep(step int, format string) Generator {
return IncrementalFormatWithStartAndStep(0, step, format)
}
func incrementalHelper(start, step int, cb func(int) string) Generator {
next := start
return func(*Config) (string, error) {
out := cb(next)
next += step
return out, nil
}
}
// InrementalWithStartAndStep generates a name that is a series of integers, starting at the specified number,
// and increasing the specified step each time
func IncrementalWithStartAndStep(start, step int) Generator {
return incrementalHelper(start, step, strconv.Itoa)
}
// IncrementalFormatWithStartAndStep generates a name that is a series of integers, starting at the specified number,
// and increasing the specified step each time, formatted with Printf
func IncrementalFormatWithStartAndStep(start, step int, format string) Generator {
return incrementalHelper(start, step, func(i int) string {
return fmt.Sprintf(format, i)
})
}
// ErrMissingOriginal is the error returned by Slug if there is no filename
var ErrMissingOriginal = errors.New("missing original filename")