fix: Use snake_case config names (ScoopInstaller#33)

Author: niheaven

install.ps1

@@ -437,44 +437,44 @@ function Add-Config {
 }
 
 function Add-DefaultConfig {
-    # If user-level SCOOP env not defined, save to rootPath
+    # If user-level SCOOP env not defined, save to root_path
     if (!(Get-Env 'SCOOP')) {
         if ($SCOOP_DIR -ne "$env:USERPROFILE\scoop") {
-            Write-Verbose "Adding config rootPath: $SCOOP_DIR"
-            Add-Config -Name 'rootPath' -Value $SCOOP_DIR | Out-Null
+            Write-Verbose "Adding config root_path: $SCOOP_DIR"
+            Add-Config -Name 'root_path' -Value $SCOOP_DIR | Out-Null
         }
     }
 
     # Use system SCOOP_GLOBAL, or set system SCOOP_GLOBAL
-    # with $env:SCOOP_GLOBAL if RunAsAdmin, otherwise save to globalPath
+    # with $env:SCOOP_GLOBAL if RunAsAdmin, otherwise save to global_path
     if (!(Get-Env 'SCOOP_GLOBAL' -global)) {
         if ((Test-IsAdministrator) -and $env:SCOOP_GLOBAL) {
             Write-Verbose "Setting System Environment Variable SCOOP_GLOBAL: $env:SCOOP_GLOBAL"
             [Environment]::SetEnvironmentVariable('SCOOP_GLOBAL', $env:SCOOP_GLOBAL, 'Machine')
         } else {
             if ($SCOOP_GLOBAL_DIR -ne "$env:ProgramData\scoop") {
-                Write-Verbose "Adding config globalPath: $SCOOP_GLOBAL_DIR"
-                Add-Config -Name 'globalPath' -Value $SCOOP_GLOBAL_DIR | Out-Null
+                Write-Verbose "Adding config global_path: $SCOOP_GLOBAL_DIR"
+                Add-Config -Name 'global_path' -Value $SCOOP_GLOBAL_DIR | Out-Null
             }
         }
     }
 
     # Use system SCOOP_CACHE, or set system SCOOP_CACHE
-    # with $env:SCOOP_CACHE if RunAsAdmin, otherwise save to cachePath
+    # with $env:SCOOP_CACHE if RunAsAdmin, otherwise save to cache_path
     if (!(Get-Env 'SCOOP_CACHE' -global)) {
         if ((Test-IsAdministrator) -and $env:SCOOP_CACHE) {
             Write-Verbose "Setting System Environment Variable SCOOP_CACHE: $env:SCOOP_CACHE"
             [Environment]::SetEnvironmentVariable('SCOOP_CACHE', $env:SCOOP_CACHE, 'Machine')
         } else {
             if ($SCOOP_CACHE_DIR -ne "$SCOOP_DIR\cache") {
-                Write-Verbose "Adding config cachePath: $SCOOP_CACHE_DIR"
-                Add-Config -Name 'cachePath' -Value $SCOOP_CACHE_DIR | Out-Null
+                Write-Verbose "Adding config cache_path: $SCOOP_CACHE_DIR"
+                Add-Config -Name 'cache_path' -Value $SCOOP_CACHE_DIR | Out-Null
             }
         }
     }
 
-    # save current datatime to lastUpdate
-    Add-Config -Name 'lastUpdate' -Value ([System.DateTime]::Now.ToString('o')) | Out-Null
+    # save current datatime to last_update
+    Add-Config -Name 'last_update' -Value ([System.DateTime]::Now.ToString('o')) | Out-Null
 }
 
 function Install-Scoop {