From 263e390a598a90a7cce70af906d9344fb22160a9 Mon Sep 17 00:00:00 2001
From: Nicole Rappe <cyberstrawberry101@gmail.com>
Date: Thu, 21 Sep 2023 23:10:31 -0600
Subject: [PATCH] Initial Commit

---
 Dockerfile         | 18 ++++++++++++++++++
 README.md          |  4 ++++
 crontab.txt        |  1 +
 docker-compose.yml |  0
 repo_watcher.sh    | 45 +++++++++++++++++++++++++++++++++++++++++++++
 5 files changed, 68 insertions(+)
 create mode 100644 Dockerfile
 create mode 100644 README.md
 create mode 100644 crontab.txt
 create mode 100644 docker-compose.yml
 create mode 100644 repo_watcher.sh

diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..476f55e
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,18 @@
+FROM ubuntu:latest
+
+# Install necessary packages
+RUN apt-get update && \
+    apt-get install -y git curl cron rsync
+
+# Add script and cronjob
+COPY repo_watcher.sh /root/Repo_Watcher/repo_watcher.sh
+COPY crontab.txt /crontab.txt
+
+# Make script executable
+RUN chmod +x /root/Repo_Watcher/repo_watcher.sh
+
+# Apply cron job
+RUN crontab /crontab.txt
+
+# Start cron in foreground
+CMD ["cron", "-f"]
\ No newline at end of file
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..7583bda
--- /dev/null
+++ b/README.md
@@ -0,0 +1,4 @@
+**Basic Docker Run Command**:
+```
+docker run -e REPO_URL='https://your.git.repo.url' -e COPY_DIR='/your/copy/dir' -e NTFY_URL='https://your.ntfy.url' -e GIT_USERNAME='your_username' -e GIT_PASSWORD='your_password' git_repo_updater
+```
diff --git a/crontab.txt b/crontab.txt
new file mode 100644
index 0000000..ad3bf79
--- /dev/null
+++ b/crontab.txt
@@ -0,0 +1 @@
+* * * * * /bin/bash /root/Repo_Watcher/repo_watcher.sh >/dev/null 2>&1
diff --git a/docker-compose.yml b/docker-compose.yml
new file mode 100644
index 0000000..e69de29
diff --git a/repo_watcher.sh b/repo_watcher.sh
new file mode 100644
index 0000000..166f176
--- /dev/null
+++ b/repo_watcher.sh
@@ -0,0 +1,45 @@
+#!/bin/bash
+
+# Fetch environment variables
+repo_url=$REPO_URL
+copy_dir=$COPY_DIR
+ntfy_url=$NTFY_URL
+git_username=$GIT_USERNAME
+git_password=$GIT_PASSWORD
+
+# Set Git credentials
+git config --global credential.helper 'store --file /tmp/git-credentials'
+echo "url=$repo_url" > /tmp/git-credentials
+echo "username=$git_username" >> /tmp/git-credentials
+echo "password=$git_password" >> /tmp/git-credentials
+
+# Navigate to the watcher directory
+cd /root/Repo_Watcher
+
+# Clone the repo if it doesn't exist
+if [ ! -d "repo" ]; then
+  git clone $repo_url repo
+fi
+
+cd repo
+
+# Fetch the latest changes
+git fetch origin main
+
+# Check if the local repository is behind the remote
+LOCAL=$(git rev-parse @)
+REMOTE=$(git rev-parse @{u})
+BASE=$(git merge-base @ @{u})
+
+if [ $LOCAL = $REMOTE ]; then
+    echo "Up-to-date"
+elif [ $LOCAL = $BASE ]; then
+    echo "Need to pull"
+    git pull origin main
+    rsync -av --delete ./ $copy_dir
+    curl -d "Data updated from Git repo" $ntfy_url
+elif [ $REMOTE = $BASE ]; then
+    echo "Need to push"
+else
+    echo "Data diverged"
+fi