From 76e2e75a9c8f5c95b20fe1ecd216898ce445c560 Mon Sep 17 00:00:00 2001
From: Jono Targett <jono@jonotargett.com>
Date: Wed, 3 Jul 2024 20:25:29 +0930
Subject: [PATCH] Added rysnc importer/exporter script with backup

---
 export        | 22 ++++++++++++++++++++++
 import        | 49 +++++++++++++++++++++++++++++++++++++++++++++++++
 tracked-files |  2 ++
 3 files changed, 73 insertions(+)
 create mode 100755 export
 create mode 100755 import
 create mode 100644 tracked-files

diff --git a/export b/export
new file mode 100755
index 0000000..7757988
--- /dev/null
+++ b/export
@@ -0,0 +1,22 @@
+#! /bin/bash
+
+set -eu
+
+repo_root=$(git rev-parse --show-toplevel)
+
+# Test for newer changes in the dotfiles. Protection against clobbering changes you might want to preserve.
+dry_run=$(rsync -avu --itemize-changes --dry-run --files-from=./tracked-files --exclude-from=./.gitignore . ~)
+if echo "${dry_run}" | grep -q '^<'; then
+    echo "Some installed files have newer mtimes than the repository versions. Please import the changes first."
+    exit 1
+elif echo "${dry_run}" | grep -q '^>'; then
+    echo "Some installed files differ from the repository versions. Creating a backup..."
+    backup_dir=$(mktemp -d -t backupXXXXXXXX)
+    ${repo_root}/import ${backup_dir} y > /dev/null
+    mkdir -p ${repo_root}/.backup/
+    tar -czf ${repo_root}/.backup/$(basename $backup_dir).tgz $backup_dir
+fi
+
+# Actually perform the copy
+rsync -avu --itemize-changes --files-from=./tracked-files --exclude-from=./.gitignore . ~
+
diff --git a/import b/import
new file mode 100755
index 0000000..ae1777a
--- /dev/null
+++ b/import
@@ -0,0 +1,49 @@
+#! /bin/bash
+
+set -eu
+
+function check_clean() {
+    if ! git diff-index --quiet HEAD -- ; then
+        echo "Git repository is dirty, aborting."
+        git status --short --untracked-files=no
+        exit 1
+    fi
+}
+
+function dry_run() {
+    rsync -HPrlm \
+        --itemize-changes \
+        --dry-run \
+        --files-from=./tracked-files \
+        --exclude-from=./.gitignore \
+        "${source}" "${destination}"
+}
+
+
+source=${HOME}
+repo_root=$(git rev-parse --show-toplevel)
+destination="${1:-$repo_root}"
+
+echo "Importing working dotfiles to $destination"
+dry_run
+
+if [ -z "${1+x}" ]; then
+    echo "Performing git repository check..."
+    check_clean
+fi
+
+if [ -z "${2+x}" ]; then
+    read -r -p "Are you sure? [y/N] " response
+    response=${response,,}
+else
+    response=$2
+fi
+
+if [[ "$response" =~ ^(yes|y)$ ]]; then
+    rsync -HPrlm \
+        --itemize-changes \
+        --files-from=./tracked-files \
+        --exclude-from=./.gitignore \
+        "${source}" "${destination}"
+fi
+
diff --git a/tracked-files b/tracked-files
new file mode 100644
index 0000000..e68ec5b
--- /dev/null
+++ b/tracked-files
@@ -0,0 +1,2 @@
+.vim/
+.vimrc