diff --git a/contrib/hooks/post_encrypt b/contrib/hooks/post_encrypt
new file mode 100755
index 0000000..bc4cbf6
--- /dev/null
+++ b/contrib/hooks/post_encrypt
@@ -0,0 +1,96 @@
+#!/usr/bin/env bash
+
+# yadm - Yet Another Dotfiles Manager
+# Copyright (C) 2015-2019 Tim Byrne and Martin Zuther
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see .
+
+
+YADM_CHECKSUMS="$YADM_HOOK_DIR/files.checksums"
+WARNING_MESSAGE="No checksums were created"
+
+# unpack exported array; filenames including a newline character (\n)
+# are NOT supported
+OLD_IFS="$IFS"
+IFS=$'\n'
+YADM_ENCRYPT_INCLUDE_FILES=( $YADM_ENCRYPT_INCLUDE_FILES )
+IFS="$OLD_IFS"
+
+
+function get_checksum_command {
+ # check if "shasum" exists and supports the algorithm (which is
+ # tested by sending an empty string to "shasum")
+ if command -v "shasum" > /dev/null && printf "" | shasum --algorithm "256" &> /dev/null; then
+ printf "shasum --algorithm 256"
+ # check if "sha256sum" exists
+ elif command -v "sha256sum" > /dev/null; then
+ printf "sha256sum"
+ # check if "gsha256sum" exists
+ elif command -v "gsha256sum" > /dev/null; then
+ printf "gsha256sum"
+ else
+ # display warning in bright yellow
+ printf "\033[1;33m" >&2
+ printf "\nWARNING: \"shasum\", \"sha256sum\" and \"gsha256sum\" not found. %s\n" "$WARNING_MESSAGE." >&2
+
+ # reset output color
+ printf "\033[0m" >&2
+
+ # signal error
+ return 1
+ fi
+}
+
+
+# get checksum command
+CHECKSUM_COMMAND=$(get_checksum_command)
+
+# no command found
+if (($?)); then
+ # return original exit status of yadm command
+ exit "$YADM_HOOK_EXIT"
+fi
+
+# empty (or create) checksum file
+true > "$YADM_CHECKSUMS"
+
+# calculate checksums for encrypted files
+for included in "${YADM_ENCRYPT_INCLUDE_FILES[@]}"; do
+ # highlight any errors in red
+ printf "\033[0;31m"
+
+ # calculate checksums
+ $CHECKSUM_COMMAND "$included" >> "$YADM_CHECKSUMS"
+ ERROR_CODE=$?
+
+ # reset output color
+ printf "\033[0m"
+
+ # handle errors
+ if (($ERROR_CODE)); then
+ # display warning in bright yellow
+ printf "\033[1;33m" >&2
+ printf "\nWARNING: an error occurred. Please inspect the checksum file.\n" >&2
+
+ # reset output color
+ printf "\033[0m" >&2
+
+ # exit and signal error
+ exit $ERROR_CODE
+ fi
+done
+
+# announce success and return original exit status of yadm command
+printf "Wrote SHA-256 checksums: %s\n" "$YADM_CHECKSUMS"
+exit "$YADM_HOOK_EXIT"
diff --git a/contrib/hooks/post_list b/contrib/hooks/post_list
new file mode 100755
index 0000000..b95acc2
--- /dev/null
+++ b/contrib/hooks/post_list
@@ -0,0 +1,69 @@
+#!/usr/bin/env bash
+
+# yadm - Yet Another Dotfiles Manager
+# Copyright (C) 2015-2019 Tim Byrne and Martin Zuther
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see .
+
+YADM_CHECKSUMS="$YADM_HOOK_DIR/files.checksums"
+
+
+# is current directory on yadm's work path?
+# (adapted from https://unix.stackexchange.com/a/6438/122163)
+if [ "${PWD##$YADM_HOOK_WORK}" != "$PWD" ]; then
+ ON_WORK_PATH=1
+else
+ ON_WORK_PATH=0
+fi
+
+
+# list all files or only those in the subdirectories below?
+OPTION_LIST_ALL=0
+for argument in "${YADM_HOOK_FULL_COMMAND[@]}"; do
+ # mimick git ls-files by displaying all files when not on work
+ # path
+ if [ "$argument" = "-a" ] || [ $ON_WORK_PATH -eq 0 ]; then
+ OPTION_LIST_ALL=1
+ break
+ fi
+done
+
+
+# if there is no checksum file, exit with original status of yadm
+# command
+if [ ! -f "$YADM_CHECKSUMS" ]; then
+ exit "$YADM_HOOK_EXIT"
+fi
+
+# list encrypted files
+while IFS= read -r filename; do
+ # remove checksums from file names
+ filename="${filename##[a-zA-Z0-9]* }"
+
+ # list only files in the subdirectories below (i.e. files
+ # whose relative path doesn't begin with "../")
+ if [ $OPTION_LIST_ALL -eq 0 ]; then
+ REL_PATH=$(relative_path "$PWD" "$YADM_HOOK_WORK/$filename")
+
+ if [ "$REL_PATH" = "${REL_PATH##../}" ]; then
+ printf "%s\n" "$REL_PATH"
+ fi
+ # list all files
+ else
+ printf "%s\n" "$filename"
+ fi
+done < "$YADM_CHECKSUMS"
+
+# return original exit status of yadm command
+exit "$YADM_HOOK_EXIT"
diff --git a/contrib/hooks/post_status b/contrib/hooks/post_status
new file mode 100755
index 0000000..3dd0465
--- /dev/null
+++ b/contrib/hooks/post_status
@@ -0,0 +1,100 @@
+#!/usr/bin/env bash
+
+# yadm - Yet Another Dotfiles Manager
+# Copyright (C) 2015-2019 Tim Byrne and Martin Zuther
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see .
+
+
+YADM_CHECKSUMS="$YADM_HOOK_DIR/files.checksums"
+WARNING_MESSAGE="Checksums were not verified"
+
+# unpack exported array; filenames including a newline character (\n)
+# are NOT supported
+OLD_IFS="$IFS"
+IFS=$'\n'
+YADM_ENCRYPT_INCLUDE_FILES=( $YADM_ENCRYPT_INCLUDE_FILES )
+IFS="$OLD_IFS"
+
+
+function get_checksum_command {
+ # check if "shasum" exists and supports the algorithm (which is
+ # tested by sending an empty string to "shasum")
+ if command -v "shasum" > /dev/null && printf "" | shasum --algorithm "256" &> /dev/null; then
+ printf "shasum --algorithm 256"
+ # check if "sha256sum" exists
+ elif command -v "sha256sum" > /dev/null; then
+ printf "sha256sum"
+ # check if "gsha256sum" exists
+ elif command -v "gsha256sum" > /dev/null; then
+ printf "gsha256sum"
+ else
+ # display warning in bright yellow
+ printf "\033[1;33m" >&2
+ printf "\nWARNING: \"shasum\", \"sha256sum\" and \"gsha256sum\" not found. %s\n" "$WARNING_MESSAGE." >&2
+
+ # reset output color
+ printf "\033[0m" >&2
+
+ # signal error
+ return 1
+ fi
+}
+
+
+# if there is no checksum file, exit with original status of yadm
+# command
+if [ ! -f "$YADM_CHECKSUMS" ]; then
+ exit "$YADM_HOOK_EXIT"
+fi
+
+# get checksum command
+CHECKSUM_COMMAND=$(get_checksum_command)
+
+# no command found
+if (($?)); then
+ # return original exit status of yadm command
+ exit "$YADM_HOOK_EXIT"
+fi
+
+# check encrypted files for differences and capture output and error
+# messages
+YADM_CHECKSUM_OUTPUT=$($CHECKSUM_COMMAND --check "$YADM_CHECKSUMS" 2>&1)
+ERROR_CODE=$?
+
+# handle mismatched checksums and errors
+if (($ERROR_CODE)); then
+ printf "\nSome SHA-256 sums do not match (or an error occurred):\n\n"
+
+ # display differing files and errors (highlighted in red)
+ printf "\033[0;31m"
+
+ while IFS= read -r line; do
+ # beautify output and get rid of unnecessary lines
+ line="${line%%*: [Oo][Kk]}"
+ line="${line%%: [Ff][Aa][Ii][Ll][Ee][Dd]}"
+ line="${line##*WARNING:*did NOT match}"
+
+ if [ -n "$line" ]; then
+ printf "%s\n" "$line"
+ fi
+ done <<< "$YADM_CHECKSUM_OUTPUT"
+
+ # reset output color
+ printf "\033[0m"
+
+ # display advice for differing files and signal error
+ printf "\nConsider running either \"yadm encrypt\" or \"yadm decrypt\".\n"
+ exit $ERROR_CODE
+fi
diff --git a/yadm b/yadm
index b8f42fd..f164b16 100755
--- a/yadm
+++ b/yadm
@@ -1573,15 +1573,29 @@ function invoke_hook() {
# expose some internal data to all hooks
YADM_HOOK_COMMAND=$HOOK_COMMAND
+ YADM_HOOK_DIR=$YADM_DIR
YADM_HOOK_EXIT=$exit_status
YADM_HOOK_FULL_COMMAND=$FULL_COMMAND
YADM_HOOK_REPO=$YADM_REPO
YADM_HOOK_WORK=$YADM_WORK
+
+ # pack array to export it; filenames including a newline character (\n)
+ # are NOT supported
+ YADM_ENCRYPT_INCLUDE_FILES=$(join_string $'\n' "${ENCRYPT_INCLUDE_FILES[@]}")
+
export YADM_HOOK_COMMAND
+ export YADM_HOOK_DIR
export YADM_HOOK_EXIT
export YADM_HOOK_FULL_COMMAND
export YADM_HOOK_REPO
export YADM_HOOK_WORK
+ export YADM_ENCRYPT_INCLUDE_FILES
+
+ # export helper functions
+ export -f builtin_dirname
+ export -f relative_path
+ export -f unix_path
+ export -f mixed_path
"$hook_command"
hook_status=$?
@@ -1819,6 +1833,13 @@ function auto_bootstrap() {
}
+# ****** Helper Functions ******
+
+function join_string {
+ local IFS="$1"
+ printf "%s" "${*:2}"
+}
+
# ****** Prerequisites Functions ******
function require_archive() {
@@ -1886,7 +1907,7 @@ function readlink_available() {
return 1
}
-# ****** Directory tranlations ******
+# ****** Directory translations ******
function unix_path() {
# for paths used by bash/yadm
@@ -1906,6 +1927,7 @@ function mixed_path() {
}
# ****** echo replacements ******
+
function echo() {
IFS=' '
printf '%s\n' "$*"