restore-git-opts.sh

#!/bin/bash

#
# Restore settings of Git, GPG, SSH and direnv settings
# Example: ./restore-git-opts.sh ~/git-opts-my-team ~/Projects/MyTeam
#

set -euo pipefail

if [ $# -lt 2 ]; then
    echo "Usage: $0 <settings_path> <projects_dir>"
    exit 1
fi

OPTS_DIR="$1"
PROJECTS_DIR="$2"

if [ ! -d "$OPTS_DIR" ]; then
    echo "[!] Settings $OPTS_DIR not found!"
    exit 1
fi

# Restore GPG keys

echo "[*] Restoring GPG keys"
shopt -s nullglob
for pub in "$OPTS_DIR"/gpg/*_pub.gpg; do
    keyid=$(basename "$pub" | sed 's/_pub.gpg//')
    if gpg --list-keys "$keyid" &>/dev/null; then
        echo "    [=] Public GPG key already exists: $keyid (skipped)"
    else
        echo "    [+] Importing public key: $keyid"
        gpg --import "$pub"
    fi
done

for priv in "$OPTS_DIR"/gpg/*_priv.gpg; do
    keyid=$(basename "$priv" | sed 's/_priv.gpg//')
    if gpg --list-secret-keys "$keyid" &>/dev/null; then
        echo "    [=] Private GPG key already exists: $keyid (skipped)"
    else
        echo "    [+] Importing private key: $keyid"
        gpg --import "$priv"
    fi
done
shopt -u nullglob

# Restore SSH keys

echo "[*] Restoring SSH keys"
mkdir -p ~/.ssh
chmod 700 ~/.ssh

shopt -s nullglob
for keyfile in "$OPTS_DIR"/ssh/*; do
    keyname=$(basename "$keyfile")
    dest="$HOME/.ssh/$keyname"
    if [ -f "$dest" ]; then
        echo "    [=] SSH file already exists: $keyname (skipped)"
    else
        echo "    [+] Copying SSH file: $keyname"
        cp "$keyfile" "$dest"
        chmod 600 "$dest"
    fi
done
shopt -u nullglob

# Restore global Git config

if [ -f "$OPTS_DIR/git/gitconfig" ]; then
    if [ -f "$HOME/.gitconfig" ]; then
        echo "[=] ~/.gitconfig already exists (skipped)"
    else
        echo "[+] Restoring ~/.gitconfig"
        cp "$OPTS_DIR/git/gitconfig" "$HOME/.gitconfig"
    fi
fi

# Restore project Git configs (always overwrite)

echo "[*] Restoring project .git/config files"
if [ -d "$OPTS_DIR/git/projects" ]; then
    (cd "$OPTS_DIR/git/projects" && find . -type f -path "*/config") | while read -r relpath; do
        project_dir="$PROJECTS_DIR/${relpath%/config}"
        dest="$project_dir/config"
        src="$OPTS_DIR/git/projects/$relpath"

        mkdir -p "$project_dir"
        echo "    [+] Restoring $dest"
        cp -f "$src" "$dest"
    done
fi

# Restore direnv .envrc files

echo "[*] Restoring .envrc files"
if [ -d "$OPTS_DIR/direnv" ]; then
    (cd "$OPTS_DIR/direnv" && find . -type f -name ".envrc") | while read -r relpath; do
        dest="$PROJECTS_DIR/$relpath"
        mkdir -p "$(dirname "$dest")"
        if [ -f "$dest" ]; then
            echo "    [=] .envrc already exists: $dest (skipped)"
        else
            echo "    [+] Restoring $dest"
            cp "$OPTS_DIR/direnv/$relpath" "$dest"
        fi
    done
fi

echo "[✔] Restore complete"