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goimports: add capability to use go.mod module path as prefix #496

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goimports: add capability to use go.mod module path as prefix #496

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5c96d6a
goimports use go.mod module path as prefix
TheoBrigitte Jun 1, 2024
b7472e5
trigger ci
TheoBrigitte Jun 1, 2024
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20 changes: 19 additions & 1 deletion cmd/goimports/goimports.go
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Original file line number Diff line number Diff line change
Expand Up @@ -20,6 +20,7 @@ import (
"runtime/pprof"
"strings"

"golang.org/x/mod/modfile"
"golang.org/x/tools/internal/gocommand"
"golang.org/x/tools/internal/imports"
)
Expand Down Expand Up @@ -51,7 +52,7 @@ var (

func init() {
flag.BoolVar(&options.AllErrors, "e", false, "report all errors (not just the first 10 on different lines)")
flag.StringVar(&options.LocalPrefix, "local", "", "put imports beginning with this string after 3rd-party packages; comma-separated list")
flag.StringVar(&options.LocalPrefix, "local", "", "put imports beginning with this string after 3rd-party packages; comma-separated list; if set to auto, use module path from go.mod as prefix")
flag.BoolVar(&options.FormatOnly, "format-only", false, "if true, don't fix imports and only format. In this mode, goimports is effectively gofmt, with the addition that imports are grouped into sections.")
}

Expand Down Expand Up @@ -268,6 +269,23 @@ func gofmtMain() {
return
}

if options.LocalPrefix == "auto" {
wd, err := os.Getwd()
if err != nil {
log.Fatal(err)
}
filename := filepath.Join(wd, "go.mod")
data, err := os.ReadFile(filename)
if err != nil {
log.Fatal(err)
}
gomodModulePath := modfile.ModulePath(data)
if err != nil {
log.Fatal(err)
}
options.LocalPrefix = gomodModulePath
}

if len(paths) == 0 {
if err := processFile("<standard input>", os.Stdin, os.Stdout, fromStdin); err != nil {
report(err)
Expand Down