No go rebuild (#2870)

* add flag option for NoGoRebuild

v2/cmd/wails/flags/dev.go

@@ -22,6 +22,7 @@ type Dev struct {
 	Browser              bool   `flag:"browser" description:"Open the application in a browser"`
 	NoReload             bool   `flag:"noreload" description:"Disable reload on asset change"`
 	NoColour             bool   `flag:"nocolor" description:"Disable colour in output"`
+	NoGoRebuild          bool   `flag:"nogorebuild" description:"Disable automatic rebuilding on backend file changes/additions"`
 	WailsJSDir           string `flag:"wailsjsdir" description:"Directory to generate the Wails JS modules"`
 	LogLevel             string `flag:"loglevel" description:"LogLevel to use - Trace, Debug, Info, Warning, Error)"`
 	ForceBuild           bool   `flag:"f" description:"Force build of application"`

v2/cmd/wails/internal/dev/dev.go

@@ -80,7 +80,7 @@ func Application(f *flags.Dev, logger *clilogger.CLILogger) error {
 
 	// Setup signal handler
 	quitChannel := make(chan os.Signal, 1)
-	signal.Notify(quitChannel, os.Interrupt, os.Kill, syscall.SIGTERM)
+	signal.Notify(quitChannel, os.Interrupt, syscall.SIGTERM)
 	exitCodeChannel := make(chan int, 1)
 
 	// Build the frontend if requested, but ignore building the application itself.
@@ -255,8 +255,8 @@ func runFrontendDevWatcherCommand(frontendDirectory string, devCommand string, d
 
 	const (
 		stateRunning   int32 = 0
-		stateCanceling       = 1
-		stateStopped         = 2
+		stateCanceling int32 = 1
+		stateStopped   int32 = 2
 	)
 	state := stateRunning
 	go func() {
@@ -366,7 +366,7 @@ func doWatcherLoop(buildOptions *build.Options, debugBinaryProcess *process.Proc
 
 	assetDirURL := joinPath(devServerURL, "/wails/assetdir")
 	reloadURL := joinPath(devServerURL, "/wails/reload")
-	for quit == false {
+	for !quit {
 		// reload := false
 		select {
 		case exitCode := <-exitCodeChannel:
@@ -441,16 +441,21 @@ func doWatcherLoop(buildOptions *build.Options, debugBinaryProcess *process.Proc
 		case <-timer.C:
 			if rebuild {
 				rebuild = false
-				logutils.LogGreen("[Rebuild triggered] files updated")
-				// Try and build the app
-				newBinaryProcess, _, err := restartApp(buildOptions, debugBinaryProcess, f, exitCodeChannel, legacyUseDevServerInsteadofCustomScheme)
-				if err != nil {
-					logutils.LogRed("Error during build: %s", err.Error())
-					continue
-				}
-				// If we have a new process, saveConfig it
-				if newBinaryProcess != nil {
-					debugBinaryProcess = newBinaryProcess
+				if f.NoGoRebuild {
+					logutils.LogGreen("[Rebuild triggered] skipping due to flag -nogorebuild")
+				} else {
+					logutils.LogGreen("[Rebuild triggered] files updated")
+					// Try and build the app
+
+					newBinaryProcess, _, err := restartApp(buildOptions, debugBinaryProcess, f, exitCodeChannel, legacyUseDevServerInsteadofCustomScheme)
+					if err != nil {
+						logutils.LogRed("Error during build: %s", err.Error())
+						continue
+					}
+					// If we have a new process, saveConfig it
+					if newBinaryProcess != nil {
+						debugBinaryProcess = newBinaryProcess
+					}
 				}
 			}
 

website/src/pages/changelog.mdx

@@ -40,6 +40,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Added new community template wails-sveltekit-ts. Added by [@haukened](https://github.com/haukened) in [PR](https://github.com/wailsapp/wails/pull/2851)
 - Added support for retrieving the logical and physical screen size in the screen api. Added by @stffabi in [PR](https://github.com/wailsapp/wails/pull/2856)
 - Added new community template wails-sveltekit-tailwind. Added by [@pylotlight](https://github.com/pylotlight) in [PR](https://github.com/wailsapp/wails/pull/2851)
+- Added new `wails dev -nogorebuild` flag to prevent restarts on back end file changes. [@haukened](https://github.com/haukened) in [PR #2870](https://github.com/wailsapp/wails/pull/2870)
 
 ### Changed
 

website/versioned_docs/version-v2.5.0/reference/cli.mdx

@@ -179,6 +179,7 @@ Your system is ready for Wails development!
 | -ldflags "flags"             | Additional ldflags to pass to the compiler                                                                                                                                          |                       |
 | -tags "extra tags"           | Build tags to pass to compiler (quoted and space separated)                                                                                                                         |                       |
 | -loglevel "loglevel"         | Loglevel to use - Trace, Debug, Info, Warning, Error                                                                                                                                | Debug                 |
+| -nogoreload                  | Disable back end rebuilds on file change/create/delete. Useful for IDEs that autosave frequently.                                                                                   |                       |
 | -noreload                    | Disable automatic reload when assets change                                                                                                                                         |                       |
 | -nocolour                    | Turn off colour cli output                                                                                                                                                          | false                 |
 | -nogen                       | Disable generate module                                                                                                                                                             |                       |