safety checks on output dir

scripts/bitwarden.ps1

@@ -40,29 +40,30 @@ if($output -eq "") {
     $output="${dir}\bitwarden"
 }
 
-if(!(Test-Path -Path $output)) {
-    New-Item -ItemType directory -Path $output | Out-Null
-}
-
 $scriptsDir = "${output}\scripts"
 $dockerDir = "${output}\docker"
 $githubBaseUrl = "https://raw.githubusercontent.com/bitwarden/core/master"
 
-if(!(Test-Path -Path $scriptsDir)) {
-    New-Item -ItemType directory -Path $scriptsDir | Out-Null
-}
-
 # Functions
 
 function Download-Self {
+    if(!(Test-Path -Path $scriptsDir)) {
+        New-Item -ItemType directory -Path $scriptsDir | Out-Null
+    }
     Invoke-RestMethod -OutFile $scriptPath -Uri "${githubBaseUrl}/scripts/bitwarden.ps1"
 }
 
 function Download-Install {
+    if(!(Test-Path -Path $scriptsDir)) {
+        New-Item -ItemType directory -Path $scriptsDir | Out-Null
+    }
     Invoke-RestMethod -OutFile $scriptsDir\install.ps1 ` -Uri "${githubBaseUrl}/scripts/install.ps1"
 }
 
 function Download-Run-File {
+    if(!(Test-Path -Path $scriptsDir)) {
+        New-Item -ItemType directory -Path $scriptsDir | Out-Null
+    }
     Invoke-RestMethod -OutFile $scriptsDir\run.ps1 -Uri "${githubBaseUrl}/scripts/run.ps1"
 }
 
@@ -73,18 +74,28 @@ function Download-Docker-Files {
     Invoke-RestMethod -OutFile $dockerDir\mssql.env -Uri "${githubBaseUrl}/docker/mssql.env"
 }
 
-function Download-All-Files {
+function Check-Output-Dir-Exists {
-    Download-Run-File
+    if(!(Test-Path -Path $output)) {
-    Download-Docker-Files
+        throw "Cannot find a bitwarden installation at $output."
+    }
+}
+
+function Check-Output-Dir-Not-Exists {
+    if(Test-Path -Path $output) {
+        throw "Looks like bitwarden is already installed at $output."
+    }
 }
 
 # Commands
 
 if($install) {
+    Check-Output-Dir-Not-Exists
+    New-Item -ItemType directory -Path $output | Out-Null
     Download-Install
     Invoke-Expression "$scriptsDir\install.ps1 -outputDir $output"
 }
 elseif($start -Or $restart) {
+    Check-Output-Dir-Exists
     if(!(Test-Path -Path $dockerDir)) {
         New-Item -ItemType directory -Path $dockerDir | Out-Null
         Download-All-Files
@@ -93,6 +104,7 @@ elseif($start -Or $restart) {
     Invoke-Expression "$scriptsDir\run.ps1 -restart -outputDir $output -dockerDir $dockerDir"
 }
 elseif($update) {
+    Check-Output-Dir-Exists
     if(Test-Path -Path $dockerDir) {
         Remove-Item -Recurse -Force $dockerDir | Out-Null
     }
@@ -103,12 +115,15 @@ elseif($update) {
     Invoke-Expression "$scriptsDir\run.ps1 -updatedb -outputDir $output -dockerDir $dockerDir"
 }
 elseif($updatedb) {
+    Check-Output-Dir-Exists
     Invoke-Expression "$scriptsDir\run.ps1 -updatedb -outputDir $output -dockerDir $dockerDir"
 }
 elseif($stop) {
+    Check-Output-Dir-Exists
     Invoke-Expression "$scriptsDir\run.ps1 -stop -outputDir $output -dockerDir $dockerDir"
 }
 elseif($updateself) {
+    Check-Output-Dir-Exists
     Download-Self
     echo "Updated self."
 }

scripts/bitwarden.sh

@@ -35,11 +35,6 @@ then
     OUTPUT=$2
 fi
 
-if [ ! -d "$OUTPUT" ]
-then
-    mkdir $OUTPUT
-fi
-
 OS="linux"
 if [ "$(uname)" == "Darwin" ]
 then
@@ -50,24 +45,31 @@ SCRIPTS_DIR="$OUTPUT/scripts"
 DOCKER_DIR="$OUTPUT/docker"
 GITHUB_BASE_URL="https://raw.githubusercontent.com/bitwarden/core/master"
 
-if [ ! -d "$SCRIPTS_DIR" ]
-then
-    mkdir $SCRIPTS_DIR
-fi
-
 # Functions
 
 function downloadSelf() {
+    if [ ! -d "$SCRIPTS_DIR" ]
+    then
+        mkdir $SCRIPTS_DIR
+    fi
     curl -s -o $SCRIPT_PATH $GITHUB_BASE_URL/scripts/bitwarden.sh
     chmod u+x $SCRIPT_PATH
 }
 
 function downloadInstall() {
+    if [ ! -d "$SCRIPTS_DIR" ]
+    then
+        mkdir $SCRIPTS_DIR
+    fi
     curl -s -o $SCRIPTS_DIR/install.sh $GITHUB_BASE_URL/scripts/install.sh
     chmod u+x $SCRIPTS_DIR/install.sh
 }
 
 function downloadRunFile() {
+    if [ ! -d "$SCRIPTS_DIR" ]
+    then
+        mkdir $SCRIPTS_DIR
+    fi
     curl -s -o $SCRIPTS_DIR/run.sh $GITHUB_BASE_URL/scripts/run.sh
     chmod u+x $SCRIPTS_DIR/run.sh
 }
@@ -84,14 +86,33 @@ function downloadAllFiles() {
     downloadDockerFiles
 }
 
+function checkOutputDirExists() {
+    if [ ! -d "$OUTPUT" ]
+    then
+        echo "Cannot find a bitwarden installation at $OUTPUT."
+        exit 1
+    fi
+}
+
+function checkOutputDirNotExists() {
+    if [ -d "$OUTPUT" ]
+    then
+        echo "Looks like bitwarden is already installed at $OUTPUT."
+        exit 1
+    fi
+}
+
 # Commands
 
 if [ "$1" == "install" ]
 then
+    checkOutputDirNotExists
+    mkdir $OUTPUT
     downloadInstall
     $SCRIPTS_DIR/install.sh $OUTPUT
 elif [ "$1" == "start" -o "$1" == "restart" ]
 then
+    checkOutputDirExists
     if [ ! -d "$DOCKER_DIR" ]
     then
         mkdir $DOCKER_DIR
@@ -101,6 +122,7 @@ then
     $SCRIPTS_DIR/run.sh restart $OUTPUT $DOCKER_DIR
 elif [ "$1" == "update" ]
 then
+    checkOutputDirExists
     if [ -d "$DOCKER_DIR" ]
     then
         rm -rf $DOCKER_DIR
@@ -112,12 +134,15 @@ then
     $SCRIPTS_DIR/run.sh updatedb $OUTPUT $DOCKER_DIR
 elif [ "$1" == "updatedb" ]
 then
+    checkOutputDirExists
     $SCRIPTS_DIR/run.sh updatedb $OUTPUT $DOCKER_DIR
 elif [ "$1" == "stop" ]
 then
+    checkOutputDirExists
     $SCRIPTS_DIR/run.sh stop $OUTPUT $DOCKER_DIR
 elif [ "$1" == "updateself" ]
 then
+    checkOutputDirExists
     downloadSelf
     echo "Updated self."
 else