first commit

Library/move.sh

@@ -0,0 +1,61 @@
+#!/bin/bash
+
+shopt -s extglob nullglob
+
+if [[ ${1:0:1} == - ]]; then
+    v=$1
+    shift 1
+else
+    v=
+fi
+
+function df_() {
+    free=$(df -B1 "$1")
+    free=${free% *%*}
+    free=${free%%*( )}
+    free=${free##* }
+    echo "${free}"
+}
+
+function mv_() {
+    src=$1
+
+    mkdir -p /var/stash
+    dst=$(mktemp -d /var/stash/"${src##*/}".XXXXXX)
+
+    if [[ -e ${src} ]]; then
+        chmod --reference="${src}" "${dst}"
+        chown --reference="${src}" "${dst}"
+
+        cp -aT $v "${src}" "${dst}" || {
+            rm -rf "${dst}"
+            exit 1
+        }
+
+        rm -rf $v "${src}"
+    else
+        chmod 775 "${dst}"
+        chown root.admin "${dst}"
+    fi
+
+    ln -s "${dst}" "${src}"
+}
+
+function shift_() {
+    dir=${1%/}
+
+    if [[ -d ${dir} && ! -h ${dir} ]]; then
+        used=$(/usr/libexec/cydia/du -bs "${dir}")
+        used=${used%%$'\t'*}
+        free=$(df_ /var)
+
+        if [[ $((used + 524288)) -lt ${free} ]]; then
+            mv_ "${dir}"
+        fi
+    elif [[ ! -e ${dir} ]]; then
+        rm -f "${dir}"
+        mv_ "${dir}"
+    fi
+}
+
+shift_ "$@"