feat: add include-timestamp flag

internal/app/app.go

@@ -48,6 +48,9 @@ type Options struct {
 
 	// Compare includes a diff of a previous test output file in the summary table.
 	Compare string
+
+	// Used with FollowOutput, when enabled it would include timestamp with log lines
+	IncludeTimestamp bool
 }
 
 func Run(option Options) (int, error) {
@@ -76,6 +79,7 @@ func Run(option Options) (int, error) {
 		parse.WithWriter(option.FollowOutputWriter),
 		parse.WithProgress(option.Progress),
 		parse.WithProgressOutput(progressWriter),
+		parse.WithIncludeTimestamp(option.IncludeTimestamp),
 	)
 	if err != nil {
 		return 1, err

main.go

@@ -37,6 +37,7 @@ var (
 	trimPathPtr     = flag.String("trimpath", "", "")
 	// Undocumented flags
 	followVerbosePtr = flag.Bool("follow-verbose", false, "")
+	includeTimestamp = flag.Bool("include-timestamp", false, "include timestamps in follow output")
 
 	// Legacy flags
 	noBordersPtr = flag.Bool("noborders", false, "")
@@ -48,23 +49,24 @@ var usage = `Usage:
     go test [packages...] -json > pkgs.out ; tparse [options...] -file pkgs.out
 
 Options:
-    -h             Show help.
-    -v             Show version.
-    -all           Display table event for pass and skip. (Failed items always displayed)
-    -pass          Display table for passed tests.
-    -skip          Display table for skipped tests.
-    -notests       Display packages containing no test files or empty test files.
-    -smallscreen   Split subtest names vertically to fit on smaller screens.
-    -slow          Number of slowest tests to display. Default is 0, display all.
-    -sort          Sort table output by attribute [name, elapsed, cover]. Default is name.
-    -nocolor       Disable all colors. (NO_COLOR also supported)
-    -format        The output format for tables [basic, plain, markdown]. Default is basic.
-    -file          Read test output from a file.
-    -follow        Follow raw output from go test to stdout.
-    -follow-output Write raw output from go test to a file (takes precedence over -follow).
-    -progress      Print a single summary line for each package. Useful for long running test suites.
-    -compare       Compare against a previous test output file. (experimental)
-    -trimpath      Remove path prefix from package names in output, simplifying their display.
+    -h                 Show help.
+    -v                 Show version.
+    -all               Display table event for pass and skip. (Failed items always displayed)
+    -pass              Display table for passed tests.
+    -skip              Display table for skipped tests.
+    -notests           Display packages containing no test files or empty test files.
+    -smallscreen       Split subtest names vertically to fit on smaller screens.
+    -slow              Number of slowest tests to display. Default is 0, display all.
+    -sort              Sort table output by attribute [name, elapsed, cover]. Default is name.
+    -nocolor           Disable all colors. (NO_COLOR also supported)
+    -format            The output format for tables [basic, plain, markdown]. Default is basic.
+    -file              Read test output from a file.
+    -follow            Follow raw output from go test to stdout.
+    -follow-output     Write raw output from go test to a file (takes precedence over -follow).
+    -include-timestamp Include timestamps in follow output. 
+    -progress          Print a single summary line for each package. Useful for long running test suites.
+    -compare           Compare against a previous test output file. (experimental)
+    -trimpath          Remove path prefix from package names in output, simplifying their display.
 `
 
 var version string
@@ -163,12 +165,13 @@ func main() {
 			Trim:     *smallScreenPtr,
 			TrimPath: *trimPathPtr,
 		},
-		Format:         format,
-		Sorter:         sorter,
-		ShowNoTests:    *showNoTestsPtr,
-		Progress:       *progressPtr,
-		ProgressOutput: os.Stdout,
-		Compare:        *comparePtr,
+		Format:           format,
+		Sorter:           sorter,
+		ShowNoTests:      *showNoTestsPtr,
+		Progress:         *progressPtr,
+		ProgressOutput:   os.Stdout,
+		Compare:          *comparePtr,
+		IncludeTimestamp: *includeTimestamp,
 
 		// Do not expose publicly.
 		DisableTableOutput: false,

parse/process.go

@@ -10,6 +10,7 @@ import (
 	"sort"
 	"strconv"
 	"strings"
+	"time"
 )
 
 // ErrNotParsable indicates the event line was not parsable.
@@ -104,7 +105,12 @@ func Process(r io.Reader, optionsFunc ...OptionsFunc) (*GoTestSummary, error) {
 			if !option.followVerbose && isNoisy(e) {
 				continue
 			}
-			fmt.Fprint(option.w, e.Output)
+			if e.Output != "" && option.includeTimestamp {
+				fmt.Fprint(option.w, e.Time.Format(time.RFC3339)+" "+e.Output)
+			} else {
+				fmt.Fprint(option.w, e.Output)
+			}
+
 		}
 		// Progress is a special case of follow, where we only print the
 		// progress of the test suite, but not the output.

parse/process_options.go

@@ -17,6 +17,8 @@ type options struct {
 
 	progress       bool
 	progressOutput progressWriter
+
+	includeTimestamp bool
 }
 
 type OptionsFunc func(o *options)
@@ -44,3 +46,7 @@ func WithProgress(b bool) OptionsFunc {
 func WithProgressOutput(w progressWriter) OptionsFunc {
 	return func(o *options) { o.progressOutput = w }
 }
+
+func WithIncludeTimestamp(b bool) OptionsFunc {
+	return func(o *options) { o.includeTimestamp = b }
+}