From e527fad3adb27d50429115b28b641956bc46e1a7 Mon Sep 17 00:00:00 2001
From: Yifan Gao <git@gaoyifan.com>
Date: Sun, 27 Apr 2014 21:40:57 +0800
Subject: [PATCH] add safe-rm plugin to prevent mistaken delete

---
 plugins/safe-rm/safe-rm.plugin.zsh | 50 ++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 plugins/safe-rm/safe-rm.plugin.zsh

diff --git a/plugins/safe-rm/safe-rm.plugin.zsh b/plugins/safe-rm/safe-rm.plugin.zsh
new file mode 100644
index 000000000..1bb0a1fb2
--- /dev/null
+++ b/plugins/safe-rm/safe-rm.plugin.zsh
@@ -0,0 +1,50 @@
+function _realdir () {
+
+  TARGET_FILE=$1
+
+  cd `dirname $TARGET_FILE`
+  TARGET_FILE=`basename $TARGET_FILE`
+
+  # Iterate down a (possible) chain of symlinks
+  while [ -L "$TARGET_FILE" ]
+  do
+      TARGET_FILE=`readlink $TARGET_FILE`
+      cd `dirname $TARGET_FILE`
+      TARGET_FILE=`basename $TARGET_FILE`
+  done
+
+  # Compute the canonicalized name by finding the physical path
+  # for the directory we're in and appending the target file.
+  PHYS_DIR=`pwd -P`
+  RESULT=$PHYS_DIR # get asolute dir
+  # RESULT=$PHYS_DIR/$TARGET_FILE #get absolute path
+  echo $RESULT
+}
+
+function rm () {
+  local files
+  local trash=~/.Trash/
+  test ! -d $trash && mkdir $trash
+  for files in "$@"; do
+    # ignore any arguments
+    if [[ "$files" = -* ]]; then :
+    else
+      local dst=${files##*/}
+      local filePath
+      
+      # append the time if necessary
+      while [ -e $trash$dst ]; do
+        dst=$dst_$(date +%H-%M-%S)
+      done
+
+      # if the file is in dustbin or is dustbin itself ,remove it permanently
+      filePath=`_realdir $files`
+      if test $trash -ef $filePath -o $trash -ef $files
+      then
+        \env rm -r $files
+      else
+        \env mv $files $trash$dst
+      fi
+    fi
+  done
+}