feat: add some utils like tracking

skip_steps.sh

@@ -0,0 +1,7 @@
+#!/bin/sh
+
+mkdir .dotfiles &>/dev/null
+
+for item in ${@:-update install_package_list run_system_scripts run_user_scripts link_home overlay}; do
+    echo "executed_step:$item" >> .dotfiles/pending_sync
+done

sync.sh

@@ -99,21 +99,34 @@ __step_link_home() {
     for item in $(find ./home -type f); do
         path=$(echo $item | sed "s/\.\/home//")
         [ -z "$path" ] && continue
+        grep -q "$path" $trackingfile &> /dev/null && continue
         path="$HOME$path"
         mkdir -p $(dirname $path) &> /dev/null
         ln $item $path && echo "$path" >> $trackingfile
     done
 }
 
+step() {
+    if ! grep -q "executed_step:$1" .dotfiles/pending_sync &> /dev/null; then
+        $(printf "__step_%s" "$1")
+        echo "executed_step:$1" >> .dotfiles/pending_sync
+    fi
+}
+
 mkdir -p .dotfiles &> /dev/null
+touch .dotfiles/pending_sync
 
 if [ -n "$1" ]; then
-    $(printf "__step_%s" "$1")
+    step $1
 else
-    __step_update
-    __step_install_package_list
-    __step_run_system_scripts
-    __step_run_user_scripts
-    __step_link_home
-    __step_overlay
+    echo "started_sync:$(date)" >> .dotfiles/log
+    step update
+    step install_package_list
+    step run_system_scripts
+    step run_user_scripts
+    step link_home
+    step overlay
+    echo "finished_sync:$(date)" >> .dotfiles/log
 fi
+
+unlink .dotfiles/pending_sync

unlink.sh

@@ -1,6 +1,6 @@
 #!/bin/sh
 
-for linkfile in $@; do
+for linkfile in ${@:-$(find .dotfiles -type f -name *-links)}; do
     echo "# processing linkfile $linkfile..."
     for link in $(cat $linkfile); do
         echo "# unlinking $link..."