Support for version checks

dotfiles.sh

@@ -131,7 +131,7 @@ function _task_done {
 
 # Arch setup function
 function arch_setup {
-  for pkg in ansible curl python python-pip python-watchdog openssh rsync git noto-fonts-emoji; do
+  for pkg in ansible curl python python-pip python-watchdog openssh rsync git noto-fonts-emoji jq; do
     if ! pacman -Q $pkg >/dev/null 2>&1; then
       _task "Installing $pkg"
       _cmd "sudo pacman -S --noconfirm $pkg" 5 2 "Failed to install $pkg."
@@ -153,18 +153,39 @@ function update_ansible_galaxy {
   fi
 }
 
-# Get the latest release tag
-function get_latest_release {
-  curl --silent "https://api.github.com/repos/$REPO/releases/latest" | \
-    grep '"tag_name":' | \
-    sed -E 's/.*"([^"]+)".*/\1/'
+# Get the latest version
+function get_latest_version {
+  if [[ $MODE == "rolling" ]]; then
+    curl --silent "https://api.github.com/repos/$REPO/commits/heads/main" | \
+      jq -r .sha
+  else
+    curl --silent "https://api.github.com/repos/$REPO/releases/latest" | \
+      jq -r .tag_name
+  fi
+}
+
+# Get the installed version
+function get_installed_version {
+  if [[ $MODE == "rolling" ]] && [[ -f "$DOTFILES_DIR/.git/ORIG_HEAD" ]]; then
+    cat $DOTFILES_DIR/.git/ORIG_HEAD
+  elif [[ -f "$DOTFILES_DIR/VERSION" ]]; then
+    cat $DOTFILES_DIR/VERSION
+  fi
+}
+
+# Check if we have the latest version
+function check_version {
+  local latest_version=$(get_latest_version)
+  local installed_version=$(get_installed_version)
+
+  _task "Checking for updates..."
+  _cmd "[[ \"${latest_version}\" != \"${installed_version}\" ]]" 1 0 "You already have the latest version."
 }
 
 # Get the latest release zip URL
 function get_latest_zip {
   curl --silent "https://api.github.com/repos/$REPO/releases/latest" | \
-    grep '"zipball_url":' | \
-    sed -E 's/.*"([^"]+)".*/\1/'
+    jq -r .zipball_url
 }
 
 # Download the latest release and extract it
@@ -179,6 +200,7 @@ function download_latest_release {
   _cmd "unzip -o $zip_file -d $HOME/dotfiles_temp" 3 2 "Failed to extract the latest release."
 
   _task "Renaming the extracted folder to dotfiles"
+  _cmd "rm -rf $DOTFILES_DIR" 3 2 "Failed to remove old dotfiles directory."
   _cmd "mv $HOME/dotfiles_temp/*dotfiles-* $DOTFILES_DIR" 3 2 "Failed to rename extracted folder."
 
   _task "Cleaning up"
@@ -187,9 +209,15 @@ function download_latest_release {
 
 # Clone repository for rolling updates
 function clone_repository {
-  _task "Cloning the repository"
-  _cmd "rm -rf $DOTFILES_DIR" 3 2 "Failed to remove old dotfiles directory."
-  _cmd "git clone $REPO_URL $DOTFILES_DIR" 3 2 "Failed to clone repository."
+  if [[ ! -d "$DOTFILES_DIR/.git" ]]; then
+    _task "Cloning the repository"
+    _cmd "rm -rf $DOTFILES_DIR" 3 2 "Failed to remove old dotfiles directory."
+    _cmd "git clone $REPO_URL $DOTFILES_DIR" 3 2 "Failed to clone repository."
+  else
+    _task "Pulling latest changes"
+    _cmd "cd $DOTFILES_DIR" 3 2 "Failed to enter into existing dotfiles directory."
+    _cmd "git pull $REPO_URL main --rebase" 3 2 "Failed to pull the latest changes."
+  fi
 }
 
 # Load OS and setup based on detected OS
@@ -205,6 +233,8 @@ case $ID in
     ;;
 esac
 
+check_version
+
 if [[ $MODE == "rolling" ]]; then
   clone_repository
 else