1 files changed, 0 insertions, 158 deletions
diff --git a/compiler_wrapper/iwyu_flag.go b/compiler_wrapper/iwyu_flag.go
deleted file mode 100644
index 5788d8c7..00000000
--- a/compiler_wrapper/iwyu_flag.go
+++ /dev/null
@@ -1,158 +0,0 @@
-// Copyright 2022 The ChromiumOS Authors
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package main
-
-import (
-	"bufio"
-	"bytes"
-	"fmt"
-	"os"
-	"path/filepath"
-	"strings"
-)
-
-type useIWYUMode int
-
-const (
-	iwyuModeNone useIWYUMode = iota
-	iwyuModeAll
-	iwyuModeError
-)
-
-var srcFileSuffixes = []string{
-	".c",
-	".cc",
-	".cpp",
-	".C",
-	".cxx",
-	".c++",
-}
-
-func findWithIWYUFlag(args []builderArg) (string, []builderArg) {
-	for i := range args {
-		if args[i].value == "--with-iwyu" {
-			args = append(args[:i], args[i+1:]...)
-			return "1", args
-		}
-	}
-	return "", args
-}
-
-func processIWYUFlags(builder *commandBuilder) (cSrcFile string, iwyuFlags []string, mode useIWYUMode) {
-	builder.transformArgs(func(arg builderArg) string {
-		const prefix = "-iwyu-flag="
-		if !strings.HasPrefix(arg.value, prefix) {
-			return arg.value
-		}
-
-		iwyuFlags = append(iwyuFlags, arg.value[len(prefix):])
-		return ""
-	})
-
-	cSrcFile = ""
-	lastArg := ""
-	for _, arg := range builder.args {
-		if lastArg != "-o" {
-			for _, suffix := range srcFileSuffixes {
-				if strings.HasSuffix(arg.value, suffix) {
-					cSrcFile = arg.value
-					break
-				}
-			}
-		}
-		lastArg = arg.value
-	}
-
-	if cSrcFile == "" {
-		return "", iwyuFlags, iwyuModeNone
-	}
-
-	withIWYU, _ := builder.env.getenv("WITH_IWYU")
-	if withIWYU == "" {
-		withIWYU, builder.args = findWithIWYUFlag(builder.args)
-		if withIWYU == "" {
-			return cSrcFile, iwyuFlags, iwyuModeNone
-		}
-	}
-
-	if withIWYU != "1" {
-		return cSrcFile, iwyuFlags, iwyuModeError
-	}
-
-	return cSrcFile, iwyuFlags, iwyuModeAll
-}
-
-func calcIWYUInvocation(env env, clangCmd *command, cSrcFile string, iwyuFlags ...string) (*command, error) {
-	resourceDir, err := getClangResourceDir(env, clangCmd.Path)
-	if err != nil {
-		return nil, err
-	}
-
-	iwyuPath := filepath.Join(filepath.Dir(clangCmd.Path), "include-what-you-use")
-	args := append([]string{}, iwyuFlags...)
-	args = append(args, "-resource-dir="+resourceDir)
-	args = append(args, clangCmd.Args...)
-
-	for i := 0; i < len(args); i++ {
-		for j := 0; j < len(srcFileSuffixes); j++ {
-			if strings.HasSuffix(args[i], srcFileSuffixes[j]) {
-				args = append(args[:i], args[i+1:]...)
-				break
-			}
-		}
-	}
-	args = append(args, cSrcFile)
-
-	return &command{
-		Path:       iwyuPath,
-		Args:       args,
-		EnvUpdates: clangCmd.EnvUpdates,
-	}, nil
-}
-
-func runIWYU(env env, clangCmd *command, cSrcFile string, extraIWYUFlags []string) error {
-	extraIWYUFlags = append(extraIWYUFlags, "-Xiwyu", "--mapping_file=/usr/share/include-what-you-use/libcxx.imp", "-Xiwyu", "--no_fwd_decls")
-	iwyuCmd, err := calcIWYUInvocation(env, clangCmd, cSrcFile, extraIWYUFlags...)
-	if err != nil {
-		return fmt.Errorf("calculating include-what-you-use invocation: %v", err)
-	}
-
-	// Note: We pass nil as stdin as we checked before that the compiler
-	// was invoked with a source file argument.
-	var stderr bytes.Buffer
-	stderrWriter := bufio.NewWriter(&stderr)
-	exitCode, err := wrapSubprocessErrorWithSourceLoc(iwyuCmd,
-		env.run(iwyuCmd, nil, nil, stderrWriter))
-	stderrMessage := stderr.String()
-	fmt.Fprintln(env.stderr(), stderrMessage)
-
-	if err == nil && exitCode != 0 {
-		// Note: We continue on purpose when include-what-you-use fails
-		// to maintain compatibility with the previous wrapper.
-		fmt.Fprintln(env.stderr(), "include-what-you-use failed")
-	}
-
-	iwyuDir := filepath.Join(getCompilerArtifactsDir(env), "linting-output", "iwyu")
-	if err := os.MkdirAll(iwyuDir, 0777); err != nil {
-		return fmt.Errorf("creating fixes directory at %q: %v", iwyuDir, err)
-	}
-
-	f, err := os.CreateTemp(iwyuDir, "*.out")
-	if err != nil {
-		return fmt.Errorf("making output file for iwyu: %v", err)
-	}
-	writer := bufio.NewWriter(f)
-	if _, err := writer.WriteString(stderrMessage); err != nil {
-		return fmt.Errorf("writing output file for iwyu: %v", err)
-	}
-	if err := writer.Flush(); err != nil {
-		return fmt.Errorf("flushing output file buffer for iwyu: %v", err)
-	}
-	if err := f.Close(); err != nil {
-		return fmt.Errorf("finalizing output file for iwyu: %v", err)
-	}
-
-	return err
-}