Add CHANGELOG entry + small adjustments to #977

CHANGELOG.md

@@ -2,6 +2,9 @@
 
 ## Unreleased
 
+- Improve behavior and performance of status checking when using the
+  `timestamp` mode
+  ([#976](https://github.com/go-task/task/issues/976), [#977](https://github.com/go-task/task/pull/977) by @aminya).
 - Performance optimizations were made for large Taskfiles
   ([#982](https://github.com/go-task/task/pull/982) by @pd93).
 - Add ability to configure options for the [`set`](https://www.gnu.org/software/bash/manual/html_node/The-Set-Builtin.html)

internal/status/checksum.go

@@ -85,6 +85,7 @@ func (c *Checksum) checksum(files ...string) (string, error) {
 		if _, err = io.Copy(h, f); err != nil {
 			return "", err
 		}
+		f.Close()
 	}
 
 	return fmt.Sprintf("%x", h.Sum(nil)), nil
@@ -109,12 +110,12 @@ func (*Checksum) Kind() string {
 }
 
 func (c *Checksum) checksumFilePath() string {
-	return filepath.Join(c.TempDir, "checksum", NormalizeFilename(c.Task))
+	return filepath.Join(c.TempDir, "checksum", normalizeFilename(c.Task))
 }
 
 var checksumFilenameRegexp = regexp.MustCompile("[^A-z0-9]")
 
 // replaces invalid caracters on filenames with "-"
-func NormalizeFilename(f string) string {
+func normalizeFilename(f string) string {
 	return checksumFilenameRegexp.ReplaceAllString(f, "-")
 }

internal/status/checksum_test.go

@@ -16,6 +16,6 @@ func TestNormalizeFilename(t *testing.T) {
 		{"foo1bar2baz3", "foo1bar2baz3"},
 	}
 	for _, test := range tests {
-		assert.Equal(t, test.Out, NormalizeFilename(test.In))
+		assert.Equal(t, test.Out, normalizeFilename(test.In))
 	}
 }

internal/status/timestamp.go

@@ -34,38 +34,46 @@ func (t *Timestamp) IsUpToDate() (bool, error) {
 
 	timestampFile := t.timestampFilePath()
 
-	// if the file exists, add the file path to the generates
-	// if the generate file is old, the task will be executed
+	// If the file exists, add the file path to the generates.
+	// If the generate file is old, the task will be executed.
 	_, err = os.Stat(timestampFile)
 	if err == nil {
 		generates = append(generates, timestampFile)
 	} else {
-		// create the timestamp file for the next execution when the file does not exist
+		// Create the timestamp file for the next execution when the file does not exist.
 		if !t.Dry {
-			_ = os.MkdirAll(filepath.Dir(timestampFile), 0o755)
-			_, _ = os.Create(timestampFile)
+			if err := os.MkdirAll(filepath.Dir(timestampFile), 0o755); err != nil {
+				return false, err
+			}
+			f, err := os.Create(timestampFile)
+			if err != nil {
+				return false, err
+			}
+			f.Close()
 		}
 	}
 
 	taskTime := time.Now()
 
-	// compare the time of the generates and sources. If the generates are old, the task will be executed
+	// Compare the time of the generates and sources. If the generates are old, the task will be executed.
 
-	// get the max time of the generates
+	// Get the max time of the generates.
 	generateMaxTime, err := getMaxTime(generates...)
 	if err != nil || generateMaxTime.IsZero() {
 		return false, nil
 	}
 
-	// check if any of the source files is newer than the max time of the generates
+	// Check if any of the source files is newer than the max time of the generates.
 	shouldUpdate, err := anyFileNewerThan(sources, generateMaxTime)
 	if err != nil {
 		return false, nil
 	}
 
-	// modify the metadata of the file to the the current time
+	// Modify the metadata of the file to the the current time.
 	if !t.Dry {
-		_ = os.Chtimes(timestampFile, taskTime, taskTime)
+		if err := os.Chtimes(timestampFile, taskTime, taskTime); err != nil {
+			return false, err
+		}
 	}
 
 	return !shouldUpdate, nil
@@ -106,8 +114,15 @@ func getMaxTime(files ...string) (time.Time, error) {
 	return t, nil
 }
 
-// if the modification time of any of the files is newer than the the given time, returns true
-// This function is lazy, as it stops when it finds a file newer than the given time
+func maxTime(a, b time.Time) time.Time {
+	if a.After(b) {
+		return a
+	}
+	return b
+}
+
+// If the modification time of any of the files is newer than the the given time, returns true.
+// This function is lazy, as it stops when it finds a file newer than the given time.
 func anyFileNewerThan(files []string, givenTime time.Time) (bool, error) {
 	for _, f := range files {
 		info, err := os.Stat(f)
@@ -121,18 +136,11 @@ func anyFileNewerThan(files []string, givenTime time.Time) (bool, error) {
 	return false, nil
 }
 
-func maxTime(a, b time.Time) time.Time {
-	if a.After(b) {
-		return a
-	}
-	return b
-}
-
 // OnError implements the Checker interface
 func (*Timestamp) OnError() error {
 	return nil
 }
 
 func (t *Timestamp) timestampFilePath() string {
-	return filepath.Join(t.TempDir, "timestamp", NormalizeFilename(t.Task))
+	return filepath.Join(t.TempDir, "timestamp", normalizeFilename(t.Task))
 }