[neovim] Add script to check updates for plugins pinned by commitid

.config/nvim/check_plugin_updates.sh

@@ -0,0 +1,45 @@
+#!/usr/bin/env bash
+
+#
+# Best effort script to check whenever a plugin pinned by commit has updates.
+# plugins.lua must be formatted with stylua before running the script.
+#
+
+PLUGINS_DIR="$HOME/.local/share/nvim/site/pack/packer/start"
+
+function check_update() {
+    local plugin=$1
+    local current_commit=$2
+    local last_commit
+    local remote_url
+
+    pushd "$PLUGINS_DIR/$plugin" > /dev/null || exit
+    last_commit=$(git log -n 1 --pretty=format:"%H" origin/HEAD)
+    remote_url=$(git config --get remote.origin.url)
+    if [[ "$current_commit" != "$last_commit" ]]; then
+        echo -e "Plugin $plugin has a new version $last_commit (the current version is $current_commit)\n\tURL: $remote_url"
+    fi
+
+    popd > /dev/null || exit
+}
+
+pushd "$HOME/.config/nvim/lua/user" > /dev/null || exit
+
+grep -P "use.*commit" plugins.lua < plugins.lua | cut -f 2,4 -d "\"" | while IFS= read -r line; do
+    plugin=$(echo "$line" | cut -f1 -d "\"" | cut -f2 -d "/")
+    current_commit=$(echo "$line" | cut -f2 -d "\"")
+    check_update "$plugin" "$current_commit"
+done
+
+grep -P "^\t*commit" plugins.lua < plugins.lua | cut -f2 -d "\"" | while IFS= read -r current_commit; do
+    plugin=$(grep "$current_commit" -B1 plugins.lua | grep -v "$current_commit" | cut -f2 -d "\"" | cut -f2 -d "/")
+    check_update "$plugin" "$current_commit"
+done
+
+grep -P "^\t*requires.*commit" < plugins.lua | cut -f 2,4 -d "\"" | while IFS= read -r line; do
+    plugin=$(echo "$line" | cut -f1 -d "\"" | cut -f2 -d "/")
+    current_commit=$(echo "$line" | cut -f2 -d "\"")
+    check_update "$plugin" "$current_commit"
+done
+
+popd > /dev/null || exit