perf(install): Avoid checking all files for unlink persisted data (#4681)

Author: younger-1

CHANGELOG.md

@@ -36,6 +36,10 @@
 - **scoop-update:** Skip updating non git buckets ([#4670](https://github.com/ScoopInstaller/Scoop/issues/4670), [#4672](https://github.com/ScoopInstaller/Scoop/issues/4672))
 - **scoop-bucket:** Check for git before running command ([#4756](https://github.com/ScoopInstaller/Scoop/issues/4756))
 
+### Performance Improvements
+
+- **uninstall:** Avoid checking all files for unlinking persisted data ([#4681](https://github.com/ScoopInstaller/Scoop/issues/4681))
+
 ### Code Refactoring
 
 - **depends:** Rewrite 'depends.ps1' ([#4638](https://github.com/ScoopInstaller/Scoop/issues/4638), [#4673](https://github.com/ScoopInstaller/Scoop/issues/4673))

lib/core.ps1

@@ -720,7 +720,7 @@ function shim($path, $global, $name, $arg) {
     } else {
         warn_on_overwrite "$shim.cmd" $path
         # find path to Git's bash so that batch scripts can run bash scripts
-        $gitdir = (Get-Item (Get-Command git -ErrorAction:Stop).Source -ErrorAction:Stop).Directory.Parent
+        $gitdir = (Get-Item (Get-Command git -CommandType:Application -ErrorAction:Stop).Source -ErrorAction:Stop).Directory.Parent
         if ($gitdir.FullName -imatch 'mingw') {
             $gitdir = $gitdir.Parent
         }

lib/install.ps1

@@ -1177,7 +1177,7 @@ function persist_data($manifest, $original_dir, $persist_dir) {
                 # ensure target parent folder exist
                 ensure (Split-Path -Path $target) | Out-Null
                 Move-Item $source $target
-                # we don't have neither source nor target data! we need to crate an empty target,
+                # we don't have neither source nor target data! we need to create an empty target,
                 # but we can't make a judgement that the data should be a file or directory...
                 # so we create a directory by default. to avoid this, use pre_install
                 # to create the source file before persisting (DON'T use post_install)
@@ -1199,21 +1199,25 @@ function persist_data($manifest, $original_dir, $persist_dir) {
     }
 }
 
-function unlink_persist_data($dir) {
+function unlink_persist_data($manifest, $dir) {
+    $persist = $manifest.persist
     # unlink all junction / hard link in the directory
-    Get-ChildItem -Recurse $dir | ForEach-Object {
-        $file = $_
-        if ($null -ne $file.LinkType) {
-            $filepath = $file.FullName
-            # directory (junction)
-            if ($file -is [System.IO.DirectoryInfo]) {
-                # remove read-only attribute on the link
-                attrib -R /L $filepath
-                # remove the junction
-                Remove-Item -Path $filepath -Recurse -Force -ErrorAction SilentlyContinue
-            } else {
-                # remove the hard link
-                Remove-Item -Path $filepath -Force -ErrorAction SilentlyContinue
+    if ($persist) {
+        @($persist) | ForEach-Object {
+            $source, $null = persist_def $_
+            $source = Get-Item "$dir\$source"
+            if ($source.LinkType) {
+                $source_path = $source.FullName
+                # directory (junction)
+                if ($source -is [System.IO.DirectoryInfo]) {
+                    # remove read-only attribute on the link
+                    attrib -R /L $source_path
+                    # remove the junction
+                    Remove-Item -Path $source_path -Recurse -Force -ErrorAction SilentlyContinue
+                } else {
+                    # remove the hard link
+                    Remove-Item -Path $source_path -Force -ErrorAction SilentlyContinue
+                }
             }
         }
     }

libexec/scoop-cleanup.ps1

@@ -49,7 +49,7 @@ function cleanup($app, $global, $verbose, $cache) {
         Write-Host " $version" -NoNewline
         $dir = versiondir $app $version $global
         # unlink all potential old link before doing recursive Remove-Item
-        unlink_persist_data $dir
+        unlink_persist_data $manifest $dir
         Remove-Item $dir -ErrorAction Stop -Recurse -Force
     }
     $leftVersions = Get-ChildItem $appDir

libexec/scoop-reset.ps1

@@ -82,7 +82,7 @@ $apps | ForEach-Object {
     env_add_path $manifest $dir $global $architecture
     env_set $manifest $dir $global $architecture
     # unlink all potential old link before re-persisting
-    unlink_persist_data $original_dir
+    unlink_persist_data $manifest $original_dir
     persist_data $manifest $original_dir $persist_dir
     persist_permission $manifest $global
 }

libexec/scoop-uninstall.ps1

@@ -91,7 +91,7 @@ if (!$apps) { exit 0 }
 
         try {
             # unlink all potential old link before doing recursive Remove-Item
-            unlink_persist_data $dir
+            unlink_persist_data $manifest $dir
             Remove-Item $dir -Recurse -Force -ErrorAction Stop
         } catch {
             if (Test-Path $dir) {
@@ -107,7 +107,7 @@ if (!$apps) { exit 0 }
         $dir = versiondir $app $version $global
         try {
             # unlink all potential old link before doing recursive Remove-Item
-            unlink_persist_data $dir
+            unlink_persist_data $manifest $dir
             Remove-Item $dir -Recurse -Force -ErrorAction Stop
         } catch {
             error "Couldn't remove '$(friendly_path $dir)'; it may be in use."