/
go_fmt_imports.go
65 lines (59 loc) · 1.11 KB
/
go_fmt_imports.go
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package genutil
import (
"bytes"
"fmt"
"sort"
"strconv"
"strings"
)
func GoFmtImports(pkgs map[string]string) string {
if len(pkgs) == 0 {
return ""
}
pathToNameMap := make(map[string]string, len(pkgs))
for name, pat := range pkgs {
pathToNameMap[pat] = name
}
groups := make([][]string, 2)
for _, pkg := range pkgs {
if len(strings.Split(pkg, "/")) < 3 && !strings.Contains(pkg, ".") {
groups[0] = append(groups[0], pkg)
continue
}
groups[1] = append(groups[1], pkg)
}
b := new(bytes.Buffer)
for _, group := range groups {
group := group
sort.Slice(group, func(i, j int) bool {
return group[i] < group[j]
})
for _, pkg := range group {
_, err := b.WriteString(pathToNameMap[pkg])
if err != nil {
panic(err)
}
_, err = b.WriteRune(' ')
if err != nil {
panic(err)
}
_, err = b.WriteString(strconv.Quote(pkg))
if err != nil {
panic(err)
}
_, err = b.WriteRune('\n')
if err != nil {
panic(err)
}
}
_, err := b.WriteRune('\n')
if err != nil {
panic(err)
}
}
return fmt.Sprintf(`import (
%s
)`,
strings.TrimSpace(b.String()),
)
}