Add option to overwrite changes in the git repo

README.md

@@ -254,19 +254,22 @@ NAME:
    cob - Continuous Benchmark for Go project
 
 USAGE:
-   cob [global options] command [command options] [arguments...]
+   cob [global options] command [command options]
 
 COMMANDS:
    help, h  Shows a list of commands or help for one command
 
 GLOBAL OPTIONS:
-   --only-degression   Show only benchmarks with worse score (default: false)
-   --threshold value   The program fails if the benchmark gets worse than the threshold (default: 0.2)
-   --base value        Specify a base commit compared with HEAD (default: "HEAD~1")
-   --compare value     Which score to compare (default: "ns/op,B/op")
-   --bench-cmd value   Specify a command to measure benchmarks (default: "go")
-   --bench-args value  Specify arguments passed to -cmd (default: "test -run '^$' -bench . -benchmem ./...")
-   --help, -h          show help (default: false)
+   --only-degression       Show only benchmarks with worse score (default: false)
+   --fail-without-results  Exit with an error if the parsing fails (default: false)
+   --overwrite-changes     Overwrite uncommitted changes in the git repository (default: false)
+   --threshold value       The program fails if the benchmark gets worse than the threshold (default: 0.2)
+   --base value            Specify a base commit compared with HEAD (default: "HEAD~1")
+   --compare value         Which score to compare (default: "ns/op,B/op")
+   --bench-cmd value       Specify a command to measure benchmarks (default: "go")
+   --bench-args value      Specify arguments passed to -cmd (default: "test -run '^$' -bench . -benchmem ./...")
+   --git-path value        Specify the path of the git repo (default: ".")
+   --help, -h              show help
 ```
 
 # Q&A

config.go

@@ -9,6 +9,7 @@ import (
 type config struct {
 	onlyDegression     bool
 	failWithoutResults bool
+	overwriteChanges   bool
 	threshold          float64
 	base               string
 	compare            []string
@@ -21,6 +22,7 @@ func newConfig(c *cli.Context) config {
 	return config{
 		onlyDegression:     c.Bool("only-degression"),
 		failWithoutResults: c.Bool("fail-without-results"),
+		overwriteChanges:   c.Bool("overwrite-changes"),
 		threshold:          c.Float64("threshold"),
 		base:               c.String("base"),
 		compare:            strings.Split(c.String("compare"), ","),

main.go

@@ -45,6 +45,10 @@ func main() {
 				Name:  "fail-without-results",
 				Usage: "Exit with an error if the parsing fails",
 			},
+			&cli.BoolFlag{
+				Name:  "overwrite-changes",
+				Usage: "Overwrite uncommitted changes in the git repository",
+			},
 			&cli.Float64Flag{
 				Name:  "threshold",
 				Usage: "The program fails if the benchmark gets worse than the threshold",
@@ -120,7 +124,7 @@ func run(c config) error {
 		return xerrors.Errorf("unable to get the working tree status: %w", err)
 	}
 
-	if !s.IsClean() {
+	if !c.overwriteChanges && !s.IsClean() {
 		return xerrors.New("the repository is dirty: commit all changes before running 'cob'")
 	}