1 files changed, 78 insertions, 0 deletions
diff --git a/vendor/github.com/mattermost/logr/v2/targets/file.go b/vendor/github.com/mattermost/logr/v2/targets/file.go
new file mode 100644
index 00000000..71133fac
--- /dev/null
+++ b/vendor/github.com/mattermost/logr/v2/targets/file.go
@@ -0,0 +1,78 @@
+package targets
+
+import (
+	"errors"
+	"io"
+
+	"github.com/mattermost/logr/v2"
+	"gopkg.in/natefinch/lumberjack.v2"
+)
+
+type FileOptions struct {
+	// Filename is the file to write logs to.  Backup log files will be retained
+	// in the same directory.  It uses <processname>-lumberjack.log in
+	// os.TempDir() if empty.
+	Filename string `json:"filename"`
+
+	// MaxSize is the maximum size in megabytes of the log file before it gets
+	// rotated. It defaults to 100 megabytes.
+	MaxSize int `json:"max_size"`
+
+	// MaxAge is the maximum number of days to retain old log files based on the
+	// timestamp encoded in their filename.  Note that a day is defined as 24
+	// hours and may not exactly correspond to calendar days due to daylight
+	// savings, leap seconds, etc. The default is not to remove old log files
+	// based on age.
+	MaxAge int `json:"max_age"`
+
+	// MaxBackups is the maximum number of old log files to retain.  The default
+	// is to retain all old log files (though MaxAge may still cause them to get
+	// deleted.)
+	MaxBackups int `json:"max_backups"`
+
+	// Compress determines if the rotated log files should be compressed
+	// using gzip. The default is not to perform compression.
+	Compress bool `json:"compress"`
+}
+
+func (fo FileOptions) CheckValid() error {
+	if fo.Filename == "" {
+		return errors.New("filename cannot be empty")
+	}
+	return nil
+}
+
+// File outputs log records to a file which can be log rotated based on size or age.
+// Uses `https://github.com/natefinch/lumberjack` for rotation.
+type File struct {
+	out io.WriteCloser
+}
+
+// NewFileTarget creates a target capable of outputting log records to a rotated file.
+func NewFileTarget(opts FileOptions) *File {
+	lumber := &lumberjack.Logger{
+		Filename:   opts.Filename,
+		MaxSize:    opts.MaxSize,
+		MaxBackups: opts.MaxBackups,
+		MaxAge:     opts.MaxAge,
+		Compress:   opts.Compress,
+	}
+	f := &File{out: lumber}
+	return f
+}
+
+// Init is called once to initialize the target.
+func (f *File) Init() error {
+	return nil
+}
+
+// Write outputs bytes to this file target.
+func (f *File) Write(p []byte, rec *logr.LogRec) (int, error) {
+	return f.out.Write(p)
+}
+
+// Shutdown is called once to free/close any resources.
+// Target queue is already drained when this is called.
+func (f *File) Shutdown() error {
+	return f.out.Close()
+}