the-usurper-archive/gitfield-github

#!/bin/bash
set -euo pipefail
IFS=$'\n\t'

# ╭─────────────────────────────────────╮
# │          CONFIGURATION              │
# ╰─────────────────────────────────────╯
GIT_REMOTE_NAME="github"
REPO_NAME=$(basename "$(pwd)")
DEFAULT_NAME="Mark Randall Havens"
DEFAULT_EMAIL="mark.r.havens@gmail.com"
SCRIPT_VERSION="1.0"

# ╭─────────────────────────────────────╮
# │           LOGGING UTILS             │
# ╰─────────────────────────────────────╯
info()  { echo -e "\e[1;34m[INFO]\e[0m $*"; }
warn()  { echo -e "\e[1;33m[WARN]\e[0m $*"; }
error() { echo -e "\e[1;31m[ERROR]\e[0m $*" >&2; exit 1; }

# ╭─────────────────────────────────────╮
# │        TOOLCHAIN SETUP              │
# ╰─────────────────────────────────────╯
info "Checking for required tools..."
sudo apt update -qq
sudo apt install -y git curl jq openssh-client lsb-release || error "Tool install failed"

if ! command -v gh &>/dev/null; then
  info "Installing GitHub CLI..."
  curl -fsSL https://cli.github.com/packages/githubcli-archive-keyring.gpg | sudo dd of=/usr/share/keyrings/githubcli-archive-keyring.gpg
  sudo chmod go+r /usr/share/keyrings/githubcli-archive-keyring.gpg
  echo "deb [arch=$(dpkg --print-architecture)] signed-by=/usr/share/keyrings/githubcli-archive-keyring.gpg https://cli.github.com/packages stable main" | \
    sudo tee /etc/apt/sources.list.d/github-cli.list > /dev/null
  sudo apt update && sudo apt install gh -y || error "GitHub CLI install failed"
fi

# ╭─────────────────────────────────────╮
# │        AUTH + IDENTITY              │
# ╰─────────────────────────────────────╯
if ! gh auth status &>/dev/null; then
  gh auth login || error "GitHub authentication failed"
fi

git config --global user.name "${DEFAULT_NAME}"
git config --global user.email "${DEFAULT_EMAIL}"

# ╭─────────────────────────────────────╮
# │         SSH + GIT INIT              │
# ╰─────────────────────────────────────╯
if [ ! -f "$HOME/.ssh/id_ed25519" ]; then
  ssh-keygen -t ed25519 -C "$DEFAULT_EMAIL" -f "$HOME/.ssh/id_ed25519" -N ""
  eval "$(ssh-agent -s)"
  ssh-add "$HOME/.ssh/id_ed25519"
  gh ssh-key add "$HOME/.ssh/id_ed25519.pub" --title "$(hostname)" || warn "Manual add may be needed"
fi

if [ ! -d .git ]; then
  git init
  git add .
  git commit -m "Initial commit"
fi

# ╭─────────────────────────────────────╮
# │     GITHUB REPO CONFIGURATION       │
# ╰─────────────────────────────────────╯
USERNAME=$(gh api user | jq -r .login)
SSH_REMOTE_URL="git@github.com:$USERNAME/$REPO_NAME.git"
WEB_LINK="https://github.com/$USERNAME/$REPO_NAME"

if ! git remote get-url "$GIT_REMOTE_NAME" &>/dev/null; then
  if gh repo view "$USERNAME/$REPO_NAME" &>/dev/null; then
    git remote add "$GIT_REMOTE_NAME" "$SSH_REMOTE_URL"
  else
    gh repo create "$REPO_NAME" --public --source=. --remote="$GIT_REMOTE_NAME" --push || error "Failed to create repo"
  fi
else
  git remote set-url "$GIT_REMOTE_NAME" "$SSH_REMOTE_URL"
fi

# ╭─────────────────────────────────────╮
# │       GIT METADATA SNAPSHOT         │
# ╰─────────────────────────────────────╯
TIMESTAMP="$(date '+%Y-%m-%d %H:%M:%S')"
DEFAULT_BRANCH="$(git symbolic-ref --short HEAD)"
REPO_PATH="$(git rev-parse --show-toplevel)"
mkdir -p "$REPO_PATH/.gitfield" && MARKDOWN_FILE="$REPO_PATH/.gitfield/github.sigil.md"
LATEST_SHA=$(git rev-parse HEAD)
LAST_COMMIT_MSG=$(git log -1 --pretty=format:"%s")
LAST_COMMIT_DATE=$(git log -1 --pretty=format:"%ad")
LAST_COMMIT_AUTHOR=$(git log -1 --pretty=format:"%an <%ae>")
TOTAL_COMMITS=$(git rev-list --count HEAD)
TRACKED_FILES=$(git ls-files | wc -l)
UNCOMMITTED=$(if ! git diff --quiet || ! git diff --cached --quiet; then echo "Yes"; else echo "No"; fi)
LATEST_TAG=$(git describe --tags --abbrev=0 2>/dev/null || echo "None")
HOSTNAME=$(hostname)
CURRENT_USER=$(whoami)
TIMEZONE=$(date +%Z)

# ╭─────────────────────────────────────╮
# │   HARDWARE + OS FINGERPRINT BLOCK   │
# ╰─────────────────────────────────────╯
OS_NAME=$(uname -s)
KERNEL_VERSION=$(uname -r)
ARCHITECTURE=$(uname -m)
OS_PRETTY_NAME=$(grep PRETTY_NAME /etc/os-release 2>/dev/null | cut -d= -f2 | tr -d '"') || OS_PRETTY_NAME="Unknown"
DOCKER_CHECK=$(grep -qE '/docker|/lxc' /proc/1/cgroup 2>/dev/null && echo "Yes" || echo "No")
WSL_CHECK=$(grep -qi microsoft /proc/version 2>/dev/null && echo "Yes" || echo "No")
VM_CHECK=$(systemd-detect-virt 2>/dev/null || echo "Unknown")
UPTIME=$(uptime -p 2>/dev/null || echo "Unknown")
MAC_ADDR=$(ip link | awk '/ether/ {print $2}' | head -n 1)
LOCAL_IP=$(hostname -I | awk '{print $1}')
CPU_MODEL=$(grep -m1 'model name' /proc/cpuinfo | cut -d: -f2 | sed 's/^ //')
RAM_GB=$(awk '/MemTotal/ {printf "%.2f", $2/1024/1024}' /proc/meminfo)

# ╭─────────────────────────────────────╮
# │    WRITE RICH MARKDOWN ARTIFACT     │
# ╰─────────────────────────────────────╯
cat > "$MARKDOWN_FILE" <<EOF
# 🔗 GitHub Repository Link

- **Repo Name**: \`$REPO_NAME\`
- **GitHub User**: \`$USERNAME\`
- **Remote URL**: [$WEB_LINK]($WEB_LINK)
- **Local Repo Path**: \`$REPO_PATH\`
- **Remote Label**: \`$GIT_REMOTE_NAME\`
- **Default Branch**: \`$DEFAULT_BRANCH\`
- **This Commit Date**: \`$TIMESTAMP\`

---

## 📦 Commit Info

- **This Commit Timestamp**: \`$TIMESTAMP\`
- **Last Commit SHA**: \`$LATEST_SHA\`
- **Last Commit Message**: \`$LAST_COMMIT_MSG\`
- **Last Commit Author**: \`$LAST_COMMIT_AUTHOR\`
- **Last Commit Date**: \`$LAST_COMMIT_DATE\`
- **This Commit URL**: [$WEB_LINK/commit/$LATEST_SHA]($WEB_LINK/commit/$LATEST_SHA)

---

## 📊 Repo Status

- **Total Commits**: \`$TOTAL_COMMITS\`
- **Tracked Files**: \`$TRACKED_FILES\`
- **Uncommitted Changes**: \`$UNCOMMITTED\`
- **Latest Tag**: \`$LATEST_TAG\`

---

## 🧭 Environment

- **Host Machine**: \`$HOSTNAME\`
- **Current User**: \`$CURRENT_USER\`
- **Time Zone**: \`$TIMEZONE\`
- **Script Version**: \`v$SCRIPT_VERSION\`

---

## 🧬 Hardware & OS Fingerprint

- **OS Name**: \`$OS_NAME\`
- **OS Version**: \`$OS_PRETTY_NAME\`
- **Kernel Version**: \`$KERNEL_VERSION\`
- **Architecture**: \`$ARCHITECTURE\`
- **Running in Docker**: \`$DOCKER_CHECK\`
- **Running in WSL**: \`$WSL_CHECK\`
- **Virtual Machine**: \`$VM_CHECK\`
- **System Uptime**: \`$UPTIME\`
- **MAC Address**: \`$MAC_ADDR\`
- **Local IP**: \`$LOCAL_IP\`
- **CPU Model**: \`$CPU_MODEL\`
- **Total RAM (GB)**: \`$RAM_GB\`

---

_Auto-generated by \`gitfield-github\` push script._
EOF

# ╭─────────────────────────────────────╮
# │     COMMIT & PUSH MARKDOWN FILE     │
# ╰─────────────────────────────────────╯
git add "$MARKDOWN_FILE"
git commit -m "GitHub metadata link commit at $TIMESTAMP — $WEB_LINK/commit/$LATEST_SHA" || warn "No changes to commit for $MARKDOWN_FILE"

if ! git config --get branch."$DEFAULT_BRANCH".remote &>/dev/null; then
  git push -u "$GIT_REMOTE_NAME" "$DEFAULT_BRANCH"
else
  git push "$GIT_REMOTE_NAME" "$DEFAULT_BRANCH"
fi

info "✅ GitHub push complete."
echo -e "\n🔗 View in browser: $WEB_LINK\n"