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autopkg/autopkg-pull-recipes.sh

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+#!/bin/bash
+
+#### README ####
+#
+# This script is intended to run as a cron job on an always-on macOS machine. 
+# It works as part of an overall git-focused workflow where the master/main branch is the source-of-truth for your AutoPKG recipe overrides.
+# 
+# It does the following:
+# 1. Git pull from the master/main branch of recipe overrides repository.
+# 2. Updates your AutoPkgr recipe list for scheduled runs.
+# 3. Sends notifications to Slack for new, deleted, and modified recipes.
+#
+#### REQUIREMENTS ####
+# 
+# * Always-on macOS machine
+# * Git
+# * AutoPkgr and all dependencies
+#
+#### USER VARIABLES ####
+
+# Github repo where your AutoPkg recipe overrides are stored
+github_repo=""
+overrides_folder=""
+
+# AutoPkgr recipe list file, default is "$HOME/Library/Application Support/AutoPkgr/recipe_list.txt"
+recipe_list_file=""
+
+# Generate from your Slack workspace for notifications
+slack_webhook_url=""
+
+
+#### DON'T EDIT BELOW THIS LINE ####
+
+recipe_list_file_old="/private/tmp/recipe_list.old.txt"
+recipes="$(find "$overrides_folder" -type f -name "*.recipe")"
+progname="$(basename "$0")"
+IFS=$'\n'
+
+#### FUNCTIONS ####
+
+# Error handling
+error_exit() {
+
+    echo "${progname}: ${1:-"Unknown Error"}" 1>&2
+    curl -X POST "$slack_webhook_url" -H "Content-type: application/json" --data \
+    '{"type": "mrkdwn", "text": '"${progname}"': '"${1:-"Unknown Error"}"'"}'
+    exit 1
+
+}
+
+# Creates recipe_list.txt based on recipes cloned from Github repo
+update_recipe_list() {
+
+    for recipe in $recipes; do
+        recipe_list_name=$(xmllint --xpath 'string(//key[.="Identifier"]/following-sibling::string[1])' "$recipe")
+        echo "$recipe_list_name" >> "$recipe_list_file"
+    done
+
+}
+
+# Gets any new recipes added to the list and sends them to #autopkg-alerts in Slack
+slack_new_recipes() {
+
+    new_recipes="$(diff "$recipe_list_file" "$recipe_list_file_old" | grep "< local." | cut -c 3-)"
+
+    if [[ "$new_recipes" > /dev/null ]]; then
+        curl -X POST "$slack_webhook_url" -H "Content-type: application/json" --data \
+        '{"type": "mrkdwn", "text": ":man_dancing: *New recipes were added to AutoPkgr Prod* :man_dancing:\n\n'"$new_recipes"'"}'
+    fi
+
+}
+
+# Gets any recipes that were removed from the list and sends them to #autopkg-alerts in Slack
+slack_removed_recipes() {
+
+    removed_recipes="$(diff "$recipe_list_file" "$recipe_list_file_old" | grep "> local." | cut -c 3-)"
+
+    if [[ "$removed_recipes" > /dev/null ]]; then
+        curl -X POST "$slack_webhook_url" -H "Content-type: application/json" --data \
+        '{"type": "mrkdwn", "text": ":bomb: *Removed recipes from AutoPkgr Prod* :bomb:\n\n'"$removed_recipes"'"}'
+    fi
+
+}
+
+# Gets any existing recipes that were modified and sends them to #autopkg-alerts in Slack
+slack_modified_recipes() {
+
+    modified_recipes="$(find "$HOME/Github/it-autopkg/RecipeOverrides" -type f -name "*.recipe" -mtime -10s)"
+    modified_recipe_list=()
+
+    for modified_recipe in $modified_recipes; do
+        modified_recipe_name=$(xmllint --xpath 'string(//key[.="Identifier"]/following-sibling::string[1])' "$modified_recipe")
+        modified_recipe_list+=("$modified_recipe_name")
+    done
+
+    modified_only=$(diff <(echo "${modified_recipe_list[*]}") <(echo "$new_recipes") | grep "< local." | cut -c 3-)
+
+    if [[ "$modified_only" > /dev/null ]]; then
+        curl -X POST "$slack_webhook_url" -H "Content-type: application/json" --data \
+        '{"type": "mrkdwn", "text": ":lower_left_ballpoint_pen: *Modified recipes on AutoPkgr Prod* :lower_left_ballpoint_pen:\n\n'"$modified_only"'"}'
+    fi
+
+}
+
+### SCRIPT ####
+
+# Pull the latest version of the main branch for it-autopkg
+git -C "$github_repo" pull || error_exit "$LINENO: An error has occurred during git pull"
+
+# Create copy of recipe_list.txt before removing it and creating a new one, then run the functions.
+if [ -f "$recipe_list_file" ]; then
+    cp "$recipe_list_file" "$recipe_list_file_old"
+    rm "$recipe_list_file" 
+    update_recipe_list
+    slack_new_recipes
+    slack_removed_recipes
+    slack_modified_recipes
+elif [ ! -f "$recipe_list_file" ]; then
+    update_recipe_list
+    recipe_list="$(cat "$recipe_list_file")"
+    curl -X POST "$slack_webhook_url" -H "Content-type: application/json" --data \
+    '{"type": "mrkdwn", "text": "*A new recipe list was created on AutoPkgr Prod with the following recipes:*\n\n'"$recipe_list"'"}'
+else
+    error_exit "$LINENO: An error has occurred"
+fi
+
+# Print results
+printf "\nNew Recipes:\n%s\n\nRemoved Recipes:\n%s\n\nModified Recipes:\n%s\n\n" "$new_recipes" "$removed_recipes" "$modified_only"
+
+# Cleanup
+if [ -f "$recipe_list_file_old" ]; then
+    rm "$recipe_list_file_old"
+fi
+
+exit 0