From 33ba450383e7e8579d2fa368ee58be8fba0c5b8d Mon Sep 17 00:00:00 2001
From: Tim <git@loken.nl>
Date: Fri, 11 Apr 2025 14:51:15 +0200
Subject: [PATCH] Stow: allow recursing into folder, tree folding

---
 bin/bin/stow | 92 ++++++++++++++++++++++++++++++++--------------------
 1 file changed, 56 insertions(+), 36 deletions(-)

diff --git a/bin/bin/stow b/bin/bin/stow
index d2c6e68..f3ac7f3 100755
--- a/bin/bin/stow
+++ b/bin/bin/stow
@@ -16,7 +16,7 @@ $action = 'stow';
 $backup = $force = false;
 array_shift($argv); // we don't care about the script name
 
-if(count($argv) === 0) {
+if (count($argv) === 0) {
     line("Usage: stow [-u] [-b] [-f] <stow-directory>");
     exit(1);
 }
@@ -49,46 +49,66 @@ if (!is_dir($stowPath)) {
     exit(1);
 }
 
-$files = array_diff(scandir($stowPath), ['..', '.']);
+readonly class stow
+{
+    public function __construct(
+        private string $action = 'stow',
+        private bool   $backup = false,
+        private bool   $force = false
+    ) {}
 
-foreach ($files as $file) {
-    $targetFile = path($targetPath, $file);
-    $stowFile = path($stowPath, $file);
-    $isStowed = is_link($targetFile) && readlink($targetFile) === $stowFile;
+    function run(string $sourcePath, string $targetPath): void
+    {
+        $sourceFiles = array_diff(scandir($sourcePath), ['..', '.']);
 
-    if ($action === 'stow') {
-        if (is_link($targetFile)) {
-            line("File $targetFile is already stowed from $stowFile");
-            continue;
-        }
-        if(is_dir($targetFile)) {
-            line("File $targetFile is a folder, todo: recurse through existing folders");
-            continue;
-        }
-        if (is_file($targetFile)) {
-            if ($backup) {
-                $backFile = $targetFile . '.bak';
-                if (is_file($backFile)) {
-                    line("Backup file $backFile already exists");
+        foreach ($sourceFiles as $sourceFile) {
+            $targetFile = path($targetPath, $sourceFile);
+            $stowFile = path($sourcePath, $sourceFile);
+            $isStowed = is_link($targetFile) && readlink($targetFile) === $stowFile;
+
+            if ($this->action === 'stow') {
+                if (is_link($targetFile)) {
+                    line("File $targetFile is already stowed from $stowFile");
                     continue;
                 }
-                rename($targetFile, $backFile);
-                line("Backup file $targetFile to $backFile");
-            } elseif ($force) {
-                line("Todo: delete file $targetFile");
-                continue;
-            } else {
-                line("File $targetFile already exists");
-                continue;
+                if (is_dir($targetFile)) {
+                    if (is_dir($stowFile)) {
+                        line("File $targetFile and $stowFile are folders, recurse into existing folders");
+                        $this->run($stowFile, $targetFile);
+                    } else {
+                        line("File $targetFile is a folder, but stow file $stowFile is not a folder");
+                    }
+                    continue;
+                }
+                if (is_file($targetFile)) {
+                    if ($this->backup) {
+                        $backFile = $targetFile . '.bak';
+                        if (is_file($backFile)) {
+                            line("Backup file $backFile already exists");
+                            continue;
+                        }
+                        rename($targetFile, $backFile);
+                        line("Backup file $targetFile to $backFile");
+                    } elseif ($this->force) {
+                        line("Todo: delete file $targetFile");
+                        continue;
+                    } else {
+                        line("File $targetFile already exists");
+                        continue;
+                    }
+                }
+                line("Stow $stowFile to $targetFile");
+                symlink($stowFile, $targetFile);
+            } elseif ($this->action === 'unstow') {
+                if (!$isStowed) {
+                    line("File $targetFile is not stowed from $stowFile");
+                    continue;
+                }
+                unlink($targetFile);
             }
         }
-        line("Stow $stowFile to $targetFile");
-        symlink($stowFile, $targetFile);
-    } elseif ($action === 'unstow') {
-        if (!$isStowed) {
-            line("File $targetFile is not stowed from $stowFile");
-            continue;
-        }
-        unlink($targetFile);
     }
 }
+
+$stow = new stow($action, $backup, $force);
+$stow->run($stowPath, $targetPath);
\ No newline at end of file