feat: improve Windows support (#1645)

* Add preliminar Windows support for both
development and production environments.

Default profile.Data will be set to "C:\ProgramData\memos" on Windows.
Folder will be created if it does not exist, as this behavior is
expected for Windows applications.

System service installation can be achieved with third-party tools,
explained in docs/windows-service.md.

Not sure if it's worth using https://github.com/kardianos/service
to make service support built-in.

This could be a nice addition alongside #1583 (add Windows artifacts)

* feat: improve Windows support

- Fix local file storage path handling on Windows

- Improve Windows dev script

scripts/start.ps1

@@ -2,41 +2,153 @@
 # It also installs frontend dependencies.
 
 # For more details on setting-up a development environment, check the docs:
-# https://github.com/usememos/memos/blob/main/docs/development.md
+# * https://usememos.com/docs/contribution/development
+# * https://github.com/usememos/memos/blob/main/docs/development.md
 
 # Usage: ./scripts/start.ps1
-$LastExitCode = 0
 
-$projectRoot = (Resolve-Path "$MyInvocation.MyCommand.Path/..").Path
-Write-Host "Project root: $projectRoot"
-
-Write-Host "Starting backend..." -f Magenta
-Start-Process -WorkingDirectory "$projectRoot" -FilePath "air" "-c ./scripts/.air-windows.toml"
-if ($LastExitCode -ne 0) {
-    Write-Host "Failed to start backend!" -f Red
-    exit $LastExitCode
-}
-else {
-    Write-Host "Backend started!" -f Green
+foreach ($dir in @(".", "../")) {
+    if (Test-Path (Join-Path $dir ".gitignore")) {
+        $repoRoot = (Resolve-Path $dir).Path
+        break
+    }
 }
 
-Write-Host "Installing frontend dependencies..." -f Magenta
-Start-Process -Wait -WorkingDirectory "$projectRoot/web" -FilePath "powershell" -ArgumentList "pnpm i"
-if ($LastExitCode -ne 0) {
-    Write-Host "Failed to install frontend dependencies!" -f Red
-    exit $LastExitCode
-}
-else {
-    Write-Host "Frontend dependencies installed!" -f Green
+##
+$frontendPort = 3001
+# Tasks to run, in order
+$runTasks = @(
+    @{
+        Desc = "start backend with live reload";
+        Exe  = "air.exe";
+        Args = "-c .\scripts\.air-windows.toml";
+        Dir  = "$repoRoot";
+        Wait = $false;
+    },
+    @{ 
+        Desc = "install frontend dependencies";
+        Exe  = "pnpm.exe";
+        Args = "i";
+        Dir  = "$repoRoot/web"
+        Wait = $true;
+    }
+    @{ 
+        Desc = "start frontend with live reload";
+        Exe  = "pnpm.exe";
+        Args = "dev";
+        Dir  = "$repoRoot/web";
+        Wait = $false;
+    }
+)
+##
+
+if (!$repoRoot) {
+    Write-Host "Could not find repository root!" -f Red
+    Write-Host "cd into the repository root and run the script again."
+    Exit 1
 }
 
-Write-Host "Starting frontend..." -f Magenta
-Start-Process -WorkingDirectory "$projectRoot/web" -FilePath "powershell" -ArgumentList "pnpm dev"
-if ($LastExitCode -ne 0) {
-    Write-Host "Failed to start frontend!" -f Red
-    exit $LastExitCode
-}
-else {
-    Write-Host "Frontend started!" -f Green
+Write-Host "Repository root is $repoRoot"
+Write-Host "Starting development environment...`n"
+Write-Host @"
+███╗   ███╗███████╗███╗   ███╗ ██████╗ ███████╗
+████╗ ████║██╔════╝████╗ ████║██╔═══██╗██╔════╝
+██╔████╔██║█████╗  ██╔████╔██║██║   ██║███████╗
+██║╚██╔╝██║██╔══╝  ██║╚██╔╝██║██║   ██║╚════██║
+██║ ╚═╝ ██║███████╗██║ ╚═╝ ██║╚██████╔╝███████║
+╚═╝     ╚═╝╚══════╝╚═╝     ╚═╝ ╚═════╝ ╚══════╝
+"@
+
+function Stop-ProcessTree {
+    Param([int]$ParentProcessId)
+    if (!$ParentProcessId) {
+        Write-Host "Stop-ProcessTree: unspecified ParentProcessId!" -f Red
+        return
+    }
+    Write-Host "Terminating pid $($ParentProcessId) with all its child processes" -f DarkGray
+    Get-CimInstance Win32_Process | Where-Object {
+        $_.ParentProcessId -eq $ParentProcessId
+    } | ForEach-Object {
+        Stop-ProcessTree $_.ProcessId
+    }
+    Stop-Process -Id $ParentProcessId -ErrorAction SilentlyContinue
 }
 
+$maxDescLength = ( $runTasks | ForEach-Object { $_.Desc.Length } | Measure-Object -Maximum).Maximum
+$spawnedPids = @()
+foreach ($task in $runTasks) {
+    Write-Host ("Running task ""$($task.Desc)""...").PadRight($maxDescLength + 20) -f Blue -NoNewline
+    $task.Dir = (Resolve-Path $task.Dir).Path
+    try {
+        $process = Start-Process -PassThru -WorkingDirectory $task.Dir -FilePath $task.Exe -ArgumentList $task.Args -Wait:$task.Wait
+
+        if ($process.ExitCode -and $process.ExitCode -ne 0) {
+            # ExitCode only works for processes started with -Wait:$true
+            throw "Process exited with code $($process.ExitCode)"
+        }
+
+        Write-Host "[OK]" -f Green
+        $spawnedPids += $process.Id
+    }
+    catch {
+        Write-Host "[FAILED]" -f Red
+        Write-Host "Error: $_" -f Red
+        Write-Host "Unable to execute: $($task.Exe) $($task.Args)" -f Red
+        Write-Host "Process working directory: $($task.Dir)" -f Red
+
+        foreach ($spawnedPid in $spawnedPids) {
+            Stop-ProcessTree -ParentProcessId $spawnedPid
+        }
+        Exit $process.ExitCode
+    }
+}
+
+Write-Host "Front-end should be accessible at:" -f Green
+$ipAddresses = (Get-NetIPAddress -AddressFamily IPv4) | Select-Object -ExpandProperty IPAddress | Sort-Object
+$ipAddresses += "localhost"
+foreach ($ip in $ipAddresses) {
+    Write-Host "· http://$($ip):$($frontendPort)" -f Cyan
+}
+
+Write-Host "`nPress" -NoNewline
+Write-Host " Ctrl + C" -f DarkYellow -NoNewline
+Write-Host " or" -NoNewline
+Write-Host " Esc" -f DarkYellow -NoNewline
+Write-Host " to terminate running servers." -f DarkYellow
+[Console]::TreatControlCAsInput = $true
+
+$lastPoll = 0
+$noWaitTasks = $runTasks | Where-Object { $_.Wait -eq $false }
+while ($true) {
+    if ([Console]::KeyAvailable) {
+        $readkey = [Console]::ReadKey("AllowCtrlC,IncludeKeyUp,NoEcho")
+        if ($readkey.Modifiers -eq "Control" -and $readkey.Key -eq "C") {
+            break
+        }
+        if ($readkey.Key -eq "Escape") {
+            Break
+        }
+    }
+
+    # Poll for processes that exited unexpectedly
+    # Do this every 5 seconds to avoid excessive CPU usage
+    if (([DateTimeOffset]::UtcNow.ToUnixTimeMilliseconds() - $lastPoll) -ge 5000) {
+        $noWaitTasks | ForEach-Object {
+            $name = $_.Exe.TrimEnd(".exe")
+            if (!(Get-Process -Name $name -ErrorAction SilentlyContinue)) {
+                Write-Host "Process " -f Red -NoNewline
+                Write-Host $name -NoNewline -f DarkYellow
+                Write-Host " is not running anymore!" -f Red
+                break
+            }
+        }
+        $lastPoll = [DateTimeOffset]::UtcNow.ToUnixTimeMilliseconds()
+    }
+    Start-Sleep -Milliseconds 500
+}
+
+foreach ($spawnedPid in $spawnedPids) {
+    Stop-ProcessTree -ParentProcessId $spawnedPid
+}
+
+Write-Host "Exiting..."

server/resource.go

@@ -112,6 +112,9 @@ func (s *Server) registerResourceRoutes(g *echo.Group) {
 				Blob:      fileBytes,
 			}
 		} else if storageServiceID == api.LocalStorage {
+			// filepath.Join() should be used for local file paths,
+			// as it handles the os-specific path separator automatically.
+			// path.Join() always uses '/' as path separator.
 			systemSettingLocalStoragePath, err := s.Store.FindSystemSetting(ctx, &api.SystemSettingFind{Name: api.SystemSettingLocalStoragePathName})
 			if err != nil && common.ErrorCode(err) != common.NotFound {
 				return echo.NewHTTPError(http.StatusInternalServerError, "Failed to find local storage path setting").SetInternal(err)
@@ -123,11 +126,11 @@ func (s *Server) registerResourceRoutes(g *echo.Group) {
 					return echo.NewHTTPError(http.StatusInternalServerError, "Failed to unmarshal local storage path setting").SetInternal(err)
 				}
 			}
-			filePath := localStoragePath
+			filePath := filepath.FromSlash(localStoragePath)
 			if !strings.Contains(filePath, "{filename}") {
-				filePath = path.Join(filePath, "{filename}")
+				filePath = filepath.Join(filePath, "{filename}")
 			}
-			filePath = path.Join(s.Profile.Data, replacePathTemplate(filePath, file.Filename))
+			filePath = filepath.Join(s.Profile.Data, replacePathTemplate(filePath, file.Filename))
 			dir, filename := filepath.Split(filePath)
 			if err = os.MkdirAll(dir, os.ModePerm); err != nil {
 				return echo.NewHTTPError(http.StatusInternalServerError, "Failed to create directory").SetInternal(err)