default to ad hoc search if not index

.clutter/config.yaml

@@ -3,4 +3,4 @@ scanner:
     - .git
     - bin
     - tests
-
+    - README.md

README.md

@@ -113,4 +113,4 @@ make install
 - [ ] More tests
 - [ ] Cross repo.
 
-- [ ] Only account for tags in comments.
+- [ ] Only account for tags in comments.

cmd/clutter/app.go

@@ -13,15 +13,29 @@ var (
 		debug      bool
 		indexPath  string
 		configPath string
+		nocolor    bool
 	}{
 		logLevel:   "info",
 		indexPath:  configPath(indexFilename),
 		configPath: configPath(configFilename),
 	}
 
+	indexFlag = cli.StringFlag{
+		Name:        "index-path",
+		Aliases:     []string{"i"},
+		Value:       opts.indexPath,
+		Destination: &opts.indexPath,
+	}
+
 	app = cli.App{
 		UseShortOptionHandling: true,
 		Flags: []cli.Flag{
+			&cli.BoolFlag{
+				Name:        "nocolor",
+				Aliases:     []string{"nc"},
+				Destination: &opts.nocolor,
+				Usage:       "do not colorize logs",
+			},
 			&cli.BoolFlag{
 				Name:        "verbose",
 				Aliases:     []string{"v"},
@@ -40,18 +54,13 @@ var (
 				Value:       "warn",
 				Destination: &opts.logLevel,
 			},
-			&cli.StringFlag{
-				Name:        "index-path",
-				Aliases:     []string{"i"},
-				Value:       opts.indexPath,
-				Destination: &opts.indexPath,
-			},
 			&cli.StringFlag{
 				Name:        "config-path",
 				Aliases:     []string{"c"},
 				Value:       opts.configPath,
 				Destination: &opts.configPath,
 			},
+			&indexFlag,
 		},
 		Commands: []*cli.Command{
 			&indexCommand,
@@ -75,7 +84,7 @@ var (
 				level = "debug"
 			}
 
-			if err := initLogger(level); err != nil {
+			if err := initLogger(level, !opts.nocolor); err != nil {
 				return fmt.Errorf("init logger: %w", err)
 			}
 
@@ -85,3 +94,15 @@ var (
 		},
 	}
 )
+
+func indexPaths(c *cli.Context) []string {
+	if c.IsSet(indexFlag.Name) {
+		return []string{opts.indexPath}
+	}
+
+	if cfg.IgnoreIndex || opts.indexPath == "" {
+		return []string{""}
+	}
+
+	return []string{opts.indexPath, ""}
+}

cmd/clutter/cmd_lint.go

@@ -22,7 +22,7 @@ var (
 				return fmt.Errorf("linter: %w", err)
 			}
 
-			src, done, err := ReadIndex(opts.indexPath)
+			src, done, err := readIndex(c)
 			if err != nil {
 				return fmt.Errorf("read index: %w", err)
 			}

cmd/clutter/cmd_resolve.go

@@ -59,7 +59,7 @@ var (
 				return fmt.Errorf("loc: %w", err)
 			}
 
-			src, done, err := ReadIndex(opts.indexPath)
+			src, done, err := readIndex(c)
 			if err != nil {
 				return fmt.Errorf("read index: %w", err)
 			}

cmd/clutter/cmd_search.go

@@ -79,7 +79,7 @@ var (
 				return fmt.Errorf("matcher: %w", err)
 			}
 
-			src, done, err := ReadIndex(opts.indexPath)
+			src, done, err := readIndex(c)
 			if err != nil {
 				return fmt.Errorf("read index: %w", err)
 			}

cmd/clutter/config.go

@@ -21,8 +21,9 @@ const (
 func configPath(p string) string { return filepath.Join(defaultClutterDir, p) }
 
 type config struct {
-	Scanner scanner.Config `json:"scanner"`
-	Linter  linter.Config  `json:"linter"`
+	IgnoreIndex bool           `json:"ignore-index"`
+	Scanner     scanner.Config `json:"scanner"`
+	Linter      linter.Config  `json:"linter"`
 }
 
 var (

cmd/clutter/index.go

@@ -2,14 +2,47 @@ package main
 
 import (
 	"fmt"
+	"os"
+
+	cli "github.com/urfave/cli/v2"
 
 	"github.com/cluttercode/clutter/internal/pkg/parser"
 	"github.com/cluttercode/clutter/internal/pkg/scanner"
 
 	"github.com/cluttercode/clutter/pkg/clutter/clutterindex"
 )
 
-func ReadIndex(filename string) (src func() (*clutterindex.Entry, error), done func(), err error) {
+func readIndex(c *cli.Context) (func() (*clutterindex.Entry, error), func(), error) {
+	paths := indexPaths(c)
+
+	z.Debugw("reading index", "paths", paths)
+
+	for _, path := range paths {
+		z := z.With("path", path)
+
+		src, done, err := readSpecificIndex(path)
+		if err != nil {
+			if os.IsNotExist(err) {
+				z.Warn("file does not exist")
+				continue
+			}
+
+			if path == "" {
+				path = "stdin"
+			}
+
+			return nil, nil, fmt.Errorf("%s: %w", path, err)
+		}
+
+		z.Info("index read")
+
+		return src, done, nil
+	}
+
+	return nil, nil, fmt.Errorf("no index file exist")
+}
+
+func readSpecificIndex(filename string) (src func() (*clutterindex.Entry, error), done func(), err error) {
 	if filename == "" {
 		scan, err := scanner.NewScanner(z.Named("scanner"), cfg.Scanner)
 		if err != nil {
@@ -28,11 +61,10 @@ func ReadIndex(filename string) (src func() (*clutterindex.Entry, error), done f
 
 		src = clutterindex.SliceSource(clutterindex.NewIndex(ents))
 		done = func() {}
-	} else {
-		src, done, err = clutterindex.FileSource(filename)
-		if err != nil {
-			return nil, nil, fmt.Errorf("index open: %w", err)
-		}
+
+		return src, done, nil
+	} else if src, done, err = clutterindex.FileSource(filename); err != nil {
+		return nil, nil, err // do not wrap error.
 	}
 
 	return

cmd/clutter/log.go

@@ -10,11 +10,16 @@ import (
 
 var z *zap.SugaredLogger = zap.NewNop().Sugar()
 
-func initLogger(level string) error {
+func initLogger(level string, color bool) error {
 	zcfg := zap.NewDevelopmentConfig()
 
 	zcfg.DisableStacktrace = true
+
 	zcfg.EncoderConfig.EncodeLevel = zapcore.CapitalColorLevelEncoder
+	if !color {
+		zcfg.EncoderConfig.EncodeLevel = zapcore.CapitalLevelEncoder
+	}
+
 	zcfg.EncoderConfig.EncodeTime = func(time.Time, zapcore.PrimitiveArrayEncoder) {}
 
 	if level != "debug" {

pkg/clutter/clutterindex/filter.go

@@ -24,7 +24,7 @@ func FileSource(path string) (next func() (*Entry, error), done func(), err erro
 	if path == "stdin" || path == "-" {
 		f = os.Stdin
 	} else if f, err = os.Open(path); err != nil {
-		return nil, nil, fmt.Errorf("open: %w", err)
+		return nil, nil, err // don't wrap here - checking for IsNotExist in caller.
 	}
 
 	done = func() { f.Close() }

tests/cli/config.1.yaml

@@ -0,0 +1 @@
+ignore-index: true

tests/cli/misc.clitest

@@ -0,0 +1,19 @@
+$ ${CLUTTER} --nc -i nosuchfile s; echo $?
+WARN    file does not exist     {"path": "nosuchfile"}
+
+error: read index: no index file exist
+1
+$ ${CLUTTER} -c config.1.yaml --nc -i nosuchfile s; echo $?
+WARN    file does not exist     {"path": "nosuchfile"}
+
+error: read index: no index file exist
+1
+$ ${CLUTTER} -i "" s; echo $?
+0
+$ ${CLUTTER} -c config.1.yaml -i "" s; echo $?
+0
+$ ${CLUTTER} --nc s; echo $?
+WARN   file does not exist     {"path": ".clutter/index"}
+0
+$ ${CLUTTER} -c config.1.yaml --nc s; echo $?
+0

tests/cli/run.sh

@@ -18,5 +18,5 @@ fi
 
 for t in ${TESTS}; do
   printf "${BWHITE}${t}${NC}:\n"
-  ./clitest "$t"
+  ./clitest --diff-options "-u -w" "$t"
 done