1 files changed, 102 insertions, 0 deletions
diff --git a/.bash_utils/git.sh b/.bash_utils/git.sh
new file mode 100644
index 0000000..54e50f6
--- /dev/null
+++ b/.bash_utils/git.sh
@@ -0,0 +1,102 @@
+#!/usr/bin/env bash
+
+# Copyright (c) 2016 Egor Tensin <Egor.Tensin@gmail.com>
+# This file is part of the "Cygwin configuration files" project.
+# For details, see https://github.com/egor-tensin/cygwin-home.
+# Distributed under the MIT License.
+
+list_repo_files() (
+    set -o errexit -o nounset -o pipefail
+
+    local -a cmd=(git ls-files)
+
+    while [ "$#" -gt 0 ]; do
+        case "$1" in
+            -z|-0)
+                cmd+=(-z)
+                shift
+                ;;
+
+            -h|--help)
+                echo "usage: ${FUNCNAME[0]} [-h|--help] [-z|-0]"
+                return 0
+                ;;
+
+            *)
+                echo "${FUNCNAME[0]}: unrecognized parameter: $1" >&2
+                return 1
+                ;;
+        esac
+    done
+
+    eval "${cmd[@]+"${cmd[@]}"}"
+)
+
+list_repo_dirs() (
+    set -o errexit -o nounset -o pipefail
+
+    local -a cmd=(git ls-tree -d -r)
+
+    while [ "$#" -gt 0 ]; do
+        case "$1" in
+            -z|-0)
+                cmd+=(-z)
+                shift
+                ;;
+
+            -h|--help)
+                echo "usage: ${FUNCNAME[0]} [-h|--help] [-z|-0]"
+                return 0
+                ;;
+
+            *)
+                echo "${FUNCNAME[0]}: unrecognized parameter: $1" >&2
+                return 1
+                ;;
+        esac
+    done
+
+    cmd+=(--name-only HEAD)
+
+    eval "${cmd[@]+"${cmd[@]}"}"
+)
+
+tighten_repo_security() (
+    set -o errexit -o nounset -o pipefail
+
+    list_repo_files -z | xargs -0 chmod 0600
+    list_repo_dirs  -z | xargs -0 chmod 0700
+    chmod 0700 .git
+)
+
+backup_repo() (
+    set -o errexit -o nounset -o pipefail
+
+    local repo_dir
+    repo_dir="$( realpath . )"
+    local repo_name
+    repo_name="$( basename "$repo_dir" )"
+    local backup_dir="$repo_dir"
+
+    if [ $# -eq 1 ]; then
+        backup_dir="$1"
+    elif [ $# -gt 1 ]; then
+        echo "usage: ${FUNCNAME[0]} [BACKUP_DIR]" >&2
+        exit 1
+    fi
+
+    local zip_name
+    zip_name="${repo_name}_$( date -u +'%Y%m%dT%H%M%S' ).zip"
+
+    git archive \
+        --format=zip -9 \
+        --output="$backup_dir/$zip_name" \
+        --remote="$repo_dir" \
+        HEAD
+)
+
+backup_repo_dropbox() (
+    set -o errexit -o nounset -o pipefail
+
+    backup_repo "$USERPROFILE/Dropbox/backups"
+)