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yadm
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#!/bin/sh
# yadm - Yet Another Dotfiles Manager
# Copyright (C) 2015-2023 Tim Byrne
# 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 <https://www.gnu.org/licenses/>.
# shellcheck shell=bash
# execute script with bash (shebang line is /bin/sh for portability)
if [ -z "$BASH_VERSION" ]; then
[ "$YADM_TEST" != 1 ] && exec bash "$0" "$@"
fi
VERSION=3.2.2
YADM_WORK="$HOME"
YADM_DIR=
YADM_DATA=
YADM_LEGACY_DIR="${HOME}/.yadm"
YADM_LEGACY_ARCHIVE="files.gpg"
# these are the default paths relative to YADM_DIR
YADM_CONFIG="config"
YADM_ENCRYPT="encrypt"
YADM_BOOTSTRAP="bootstrap"
YADM_HOOKS="hooks"
YADM_ALT="alt"
# these are the default paths relative to YADM_DATA
YADM_REPO="repo.git"
YADM_ARCHIVE="archive"
HOOK_COMMAND=""
FULL_COMMAND=""
GPG_PROGRAM="gpg"
OPENSSL_PROGRAM="openssl"
GIT_PROGRAM="git"
AWK_PROGRAM=("gawk" "awk")
GIT_CRYPT_PROGRAM="git-crypt"
TRANSCRYPT_PROGRAM="transcrypt"
J2CLI_PROGRAM="j2"
ENVTPL_PROGRAM="envtpl"
ESH_PROGRAM="esh"
LSB_RELEASE_PROGRAM="lsb_release"
OS_RELEASE="/etc/os-release"
PROC_VERSION="/proc/version"
OPERATING_SYSTEM="Unknown"
ENCRYPT_INCLUDE_FILES="unparsed"
LEGACY_WARNING_ISSUED=0
INVALID_ALT=()
GPG_OPTS=()
OPENSSL_OPTS=()
# flag causing path translations with cygpath
USE_CYGPATH=0
# flag when something may have changes (which prompts auto actions to be performed)
CHANGES_POSSIBLE=0
# flag when a bootstrap should be performed after cloning
# 0: skip auto_bootstrap, 1: ask, 2: perform bootstrap, 3: prevent bootstrap
DO_BOOTSTRAP=0
function main() {
require_git
# capture full command, for passing to hooks
# the parameters will be space delimited and
# spaces, tabs, and backslashes will be escaped
_tab=$'\t'
for param in "$@"; do
param="${param//\\/\\\\}"
param="${param//$_tab/\\$_tab}"
param="${param// /\\ }"
_fc+=( "$param" )
done
FULL_COMMAND="${_fc[*]}"
# create the YADM_DIR & YADM_DATA if they doesn't exist yet
[ -d "$YADM_DIR" ] || mkdir -p "$YADM_DIR"
[ -d "$YADM_DATA" ] || mkdir -p "$YADM_DATA"
# parse command line arguments
local retval=0
internal_commands="^(alt|bootstrap|clean|clone|config|decrypt|encrypt|enter|git-crypt|help|--help|init|introspect|list|perms|transcrypt|upgrade|version|--version)$"
if [ -z "$*" ] ; then
# no argumnts will result in help()
help
elif [[ "$1" =~ $internal_commands ]] ; then
# for internal commands, process all of the arguments
YADM_COMMAND="${1//-/_}"
YADM_COMMAND="${YADM_COMMAND/__/}"
YADM_ARGS=()
shift
# commands listed below do not process any of the parameters
if [[ "$YADM_COMMAND" =~ ^(enter|git_crypt)$ ]] ; then
YADM_ARGS=("$@")
else
while [[ $# -gt 0 ]] ; do
key="$1"
case $key in
-a) # used by list()
LIST_ALL="YES"
;;
-d) # used by all commands
DEBUG="YES"
;;
-f) # used by init(), clone() and upgrade()
FORCE="YES"
;;
-l) # used by decrypt()
DO_LIST="YES"
[[ "$YADM_COMMAND" =~ ^(clone|config)$ ]] && YADM_ARGS+=("$1")
;;
-w) # used by init() and clone()
YADM_WORK="$(qualify_path "$2" "work tree")"
shift
;;
*) # any unhandled arguments
YADM_ARGS+=("$1")
;;
esac
shift
done
fi
[ ! -d "$YADM_WORK" ] && error_out "Work tree does not exist: [$YADM_WORK]"
HOOK_COMMAND="$YADM_COMMAND"
invoke_hook "pre"
$YADM_COMMAND "${YADM_ARGS[@]}"
else
# any other commands are simply passed through to git
HOOK_COMMAND="$1"
invoke_hook "pre"
git_command "$@"
retval="$?"
fi
# process automatic events
auto_alt
auto_perms
auto_bootstrap
exit_with_hook $retval
}
# ****** Alternate Processing ******
function score_file() {
src="$1"
tgt="${src%%##*}"
conditions="${src#*##}"
if [ "${tgt#"$YADM_ALT/"}" != "${tgt}" ]; then
tgt="${YADM_BASE}/${tgt#"$YADM_ALT/"}"
fi
score=0
IFS=',' read -ra fields <<< "$conditions"
for field in "${fields[@]}"; do
label=${field%%.*}
value=${field#*.}
[ "$field" = "$label" ] && value="" # when .value is omitted
# extension isn't a condition and doesn't affect the score
if [[ "$label" =~ ^(e|extension)$ ]]; then
continue
fi
score=$((score + 1000))
# default condition
if [[ "$label" =~ ^(default)$ ]]; then
score=$((score + 0))
# variable conditions
elif [[ "$label" =~ ^(a|arch)$ ]]; then
if [ "$value" = "$local_arch" ]; then
score=$((score + 1))
else
score=0
return
fi
elif [[ "$label" =~ ^(o|os)$ ]]; then
if [ "$value" = "$local_system" ]; then
score=$((score + 2))
else
score=0
return
fi
elif [[ "$label" =~ ^(d|distro)$ ]]; then
if [ "${value/\ /_}" = "${local_distro/\ /_}" ]; then
score=$((score + 4))
else
score=0
return
fi
elif [[ "$label" =~ ^(f|distro_family)$ ]]; then
if [ "${value/\ /_}" = "${local_distro_family/\ /_}" ]; then
score=$((score + 8))
else
score=0
return
fi
elif [[ "$label" =~ ^(c|class)$ ]]; then
if in_list "$value" "${local_classes[@]}"; then
score=$((score + 16))
else
score=0
return
fi
elif [[ "$label" =~ ^(h|hostname)$ ]]; then
if [ "$value" = "$local_host" ]; then
score=$((score + 32))
else
score=0
return
fi
elif [[ "$label" =~ ^(u|user)$ ]]; then
if [ "$value" = "$local_user" ]; then
score=$((score + 64))
else
score=0
return
fi
# templates
elif [[ "$label" =~ ^(t|template|yadm)$ ]]; then
score=0
cmd=$(choose_template_cmd "$value")
if [ -n "$cmd" ]; then
record_template "$tgt" "$cmd" "$src"
else
debug "No supported template processor for template $src"
[ -n "$loud" ] && echo "No supported template processor for template $src"
fi
return 0
# unsupported values
else
if [[ "${src##*/}" =~ .\#\#. ]]; then
INVALID_ALT+=("$src")
fi
score=0
return
fi
done
record_score "$score" "$tgt" "$src"
}
function record_score() {
score="$1"
tgt="$2"
src="$3"
# record nothing if the score is zero
[ "$score" -eq 0 ] && return
# search for the index of this target, to see if we already are tracking it
index=-1
for search_index in "${!alt_targets[@]}"; do
if [ "${alt_targets[$search_index]}" = "$tgt" ]; then
index="$search_index"
break
fi
done
# if we don't find an existing index, create one by appending to the array
if [ "$index" -eq -1 ]; then
# $YADM_CONFIG must be processed first, in case other templates lookup yadm configurations
if [ "$tgt" = "$YADM_CONFIG" ]; then
alt_targets=("$tgt" "${alt_targets[@]}")
alt_sources=("$src" "${alt_sources[@]}")
alt_scores=(0 "${alt_scores[@]}")
index=0
# increase the index of any existing alt_template_cmds
new_cmds=()
for cmd_index in "${!alt_template_cmds[@]}"; do
new_cmds[cmd_index+1]="${alt_template_cmds[$cmd_index]}"
done
alt_template_cmds=()
for cmd_index in "${!new_cmds[@]}"; do
alt_template_cmds[cmd_index]="${new_cmds[$cmd_index]}"
done
else
alt_targets+=("$tgt")
# set index to the last index (newly created one)
for index in "${!alt_targets[@]}"; do :; done
# and set its initial score to zero
alt_scores[index]=0
fi
fi
# record nothing if a template command is registered for this file
[ "${alt_template_cmds[$index]+isset}" ] && return
# record higher scoring sources
if [ "$score" -gt "${alt_scores[$index]}" ]; then
alt_scores[index]="$score"
alt_sources[index]="$src"
fi
}
function record_template() {
tgt="$1"
cmd="$2"
src="$3"
# search for the index of this target, to see if we already are tracking it
index=-1
for search_index in "${!alt_targets[@]}"; do
if [ "${alt_targets[$search_index]}" = "$tgt" ]; then
index="$search_index"
break
fi
done
# if we don't find an existing index, create one by appending to the array
if [ "$index" -eq -1 ]; then
alt_targets+=("$tgt")
# set index to the last index (newly created one)
for index in "${!alt_targets[@]}"; do :; done
fi
# record the template command, last one wins
alt_template_cmds[index]="$cmd"
alt_sources[index]="$src"
}
function choose_template_cmd() {
kind="$1"
if [ "$kind" = "default" ] || [ "$kind" = "" ] && awk_available; then
echo "template_default"
elif [ "$kind" = "esh" ] && esh_available; then
echo "template_esh"
elif [ "$kind" = "j2cli" ] || [ "$kind" = "j2" ] && j2cli_available; then
echo "template_j2cli"
elif [ "$kind" = "envtpl" ] || [ "$kind" = "j2" ] && envtpl_available; then
echo "template_envtpl"
else
return # this "kind" of template is not supported
fi
}
# ****** Template Processors ******
function template_default() {
input="$1"
output="$2"
local awk_pgm
# the explicit "space + tab" character class used below is used because not
# all versions of awk seem to support the POSIX character classes [[:blank:]]
read -r -d '' awk_pgm << "EOF"
# built-in default template processor
BEGIN {
blank = "[ ]"
c["class"] = class
c["classes"] = classes
c["arch"] = arch
c["os"] = os
c["hostname"] = host
c["user"] = user
c["distro"] = distro
c["distro_family"] = distro_family
c["source"] = source
ifs = "^{%" blank "*if" blank ".*" blank "*%}$"
elif = "^{%" blank "*elif" blank ".*" blank "*%}$"
els = "^{%" blank "*else" blank "*%}$"
end = "^{%" blank "*endif" blank "*%}$"
skp = "^{%" blank "*(if|elif|else|endif)"
vld = "^{%" blank "*(if|elif)" blank conditions()
inc_start = "^{%" blank "*include" blank "+\"?"
inc_end = "\"?" blank "*%}$"
inc = inc_start ".+" inc_end
prt = 1
err = 0
condition_block = 0
}
END { exit err }
{ replace_vars() } # variable replacements
# Handle lines within conditional blocks
$0 ~ ifs, $0 ~ end {
if ($0 ~ ifs) prt = 0 # off by default; will be turned on if a condition is met
if ($0 ~ ifs || $0 ~ elif || $0 ~ els) { # switch to new block
prt = (condition_block > 0) ? 0 : prt # Only affect printing if already inside a conditional block
}
if ($0 ~ vld || (condition_block == 0 && $0 ~ els)) { # turn on `else` if not already in a conditional block
prt = 1
condition_block = 1 # Enter a conditional block
}
if ($0 ~ end) {
prt = 1
condition_block = 0 # Exit a conditional block
}
if ($0 ~ skp) next # Skip lines with control keywords
}
{ if (!prt) next }
$0 ~ inc {
file = $0
sub(inc_start, "", file)
sub(inc_end, "", file)
sub(/^[^\/].*$/, source_dir "/&", file)
while ((res = getline <file) > 0) {
replace_vars()
print
}
if (res < 0) {
printf "%s:%d: error: could not read '%s'\n", FILENAME, NR, file | "cat 1>&2"
err = 1
}
close(file)
next
}
{ print }
function replace_vars() {
for (label in c) {
gsub(("{{" blank "*yadm\\." label blank "*}}"), c[label])
}
for (label in ENVIRON) {
gsub(("{{" blank "*env\\." label blank "*}}"), ENVIRON[label])
}
}
function condition_helper(label, value) {
gsub(/[\\.^$(){}\[\]|*+?]/, "\\\\&", value)
return sprintf("%s" blank "*==" blank "*\"%s\"", label, value)
}
function conditions() {
pattern = "("
for (label in ENVIRON) {
pattern = sprintf("%s%s|", pattern, condition_helper("env\\." label, ENVIRON[label]));
}
for (label in c) {
if (label != "class") {
value = c[label]
pattern = sprintf("%s%s|", pattern, condition_helper("yadm\\." label, value));
}
}
split(classes, cls_array, "\n")
for (idx in cls_array) {
value = cls_array[idx]
pattern = sprintf("%s%s|", pattern, condition_helper("yadm\\." "class", value));
}
sub(/\|$/, ")" blank "*%}$", pattern)
return pattern
}
EOF
local source_dir yadm_classes content
source_dir=$(dirname "$input")
yadm_classes=$(join_string $'\n' "${local_classes[@]}")
content=$("${AWK_PROGRAM[0]}" \
-v class="$local_class" \
-v arch="$local_arch" \
-v os="$local_system" \
-v host="$local_host" \
-v user="$local_user" \
-v distro="$local_distro" \
-v distro_family="$local_distro_family" \
-v source="$input" \
-v source_dir="$source_dir" \
-v classes="$yadm_classes" \
"$awk_pgm" \
"$input")
move_file "$input" "$output" "$content"
}
function template_j2cli() {
local input="$1"
local output="$2"
local yadm_classes content
yadm_classes=$(join_string $'\n' "${local_classes[@]}")
content=$(YADM_CLASS="$local_class" \
YADM_ARCH="$local_arch" \
YADM_OS="$local_system" \
YADM_HOSTNAME="$local_host" \
YADM_USER="$local_user" \
YADM_DISTRO="$local_distro" \
YADM_DISTRO_FAMILY="$local_distro_family" \
YADM_SOURCE="$input" \
YADM_CLASSES="$yadm_classes" \
"$J2CLI_PROGRAM" "$input")
move_file "$input" "$output" "$content" "$?"
}
function template_envtpl() {
local input="$1"
local output="$2"
local yadm_classes content
yadm_classes=$(join_string $'\n' "${local_classes[@]}")
# shellcheck disable=SC2094
content=$(YADM_CLASS="$local_class" \
YADM_ARCH="$local_arch" \
YADM_OS="$local_system" \
YADM_HOSTNAME="$local_host" \
YADM_USER="$local_user" \
YADM_DISTRO="$local_distro" \
YADM_DISTRO_FAMILY="$local_distro_family" \
YADM_SOURCE="$input" \
YADM_CLASSES="$yadm_classes" \
"$ENVTPL_PROGRAM" <"$input")
move_file "$input" "$output" "$content" "$?"
}
function template_esh() {
local input="$1"
local output="$2"
local yadm_classes content
yadm_classes="$(join_string $'\n' "${local_classes[@]}")"
content=$(YADM_CLASSES="$yadm_classes" \
"$ESH_PROGRAM" "$input" \
YADM_CLASS="$local_class" \
YADM_ARCH="$local_arch" \
YADM_OS="$local_system" \
YADM_HOSTNAME="$local_host" \
YADM_USER="$local_user" \
YADM_DISTRO="$local_distro" \
YADM_DISTRO_FAMILY="$local_distro_family" \
YADM_SOURCE="$input")
move_file "$input" "$output" "$content" "$?"
}
function move_file() {
local input="$1"
local output="$2"
local content="$3"
local err="${4:-}"
if [[ -s "$input" && -z "$content" ]]; then
debug "Failed to create $output from template $input: error $err"
return 1
fi
local echo_or_debug=debug
[ -n "$loud" ] && echo_or_debug="echo"
if [[ -r "$output" ]]; then
local old_content
old_content=$(< "$output")
if [[ "$old_content" == "$content" ]]; then
"$echo_or_debug" "Not rewriting file as contents have not changed: $output"
return 0
fi
# if the output files already exists as read-only, change it to be writable.
# there are some environments in which a read-only file will prevent the move
# from being successful.
if [[ ! -w "$output" ]]; then
if ! chmod u+w "$output"; then
debug "Unable to make '$output' writeable"
fi
fi
fi
"$echo_or_debug" "Creating $output from template $input"
local temp_file="${output}.$$.$RANDOM"
if printf '%s\n' "$content" >"$temp_file"; then
if mv -f "$temp_file" "$output"; then
copy_perms "$input" "$output"
if [ "$template_output_ro" == "true" ] && ! chmod a-w "$output"; then
debug "Unable to remove writable-bit for template output '$output'"
fi
return 0
fi
debug "Failed to rename '$temp_file' to '$output'"
else
debug "Failed to create '$temp_file' to generate '$output'"
fi
rm -f "$temp_file" &>/dev/null
return 1
}
# ****** yadm Commands ******
function alt() {
require_repo
parse_encrypt
# gather values for processing alternates
local local_class
local -a local_classes
local local_arch
local local_system
local local_host
local local_user
local local_distro
local local_distro_family
set_local_alt_values
# only be noisy if the "alt" command was run directly
local loud=
[ "$YADM_COMMAND" = "alt" ] && loud="YES"
# decide if a copy should be done instead of a symbolic link
local do_copy=0
[ "$(config --bool yadm.alt-copy)" == "true" ] && do_copy=1
# decide if a template output should be readonly
local template_output_ro=
[ "$(config --bool yadm.template-read-only)" != "false" ] && template_output_ro=true
cd_work "Alternates" || return
# determine all tracked files
local tracked_files=()
local IFS=$'\n'
for tracked_file in $("$GIT_PROGRAM" ls-files | LC_ALL=C sort); do
tracked_files+=("$tracked_file")
done
# generate data for removing stale links
local possible_alts=()
local IFS=$'\n'
for possible_alt in "${tracked_files[@]}" "${ENCRYPT_INCLUDE_FILES[@]}"; do
if [[ $possible_alt =~ .\#\#. ]]; then
base_alt="${possible_alt%%##*}"
yadm_alt="${YADM_BASE}/${base_alt}"
if [ "${yadm_alt#"$YADM_ALT/"}" != "${yadm_alt}" ]; then
base_alt="${yadm_alt#"$YADM_ALT/"}"
fi
possible_alts+=("$YADM_BASE/${base_alt}")
fi
done
local alt_linked=()
alt_linking
remove_stale_links
report_invalid_alts
}
function report_invalid_alts() {
[ "$LEGACY_WARNING_ISSUED" = "1" ] && return
[ "${#INVALID_ALT[@]}" = "0" ] && return
local path_list
for invalid in "${INVALID_ALT[@]}"; do
path_list="$path_list * $invalid"$'\n'
done
local msg
IFS='' read -r -d '' msg <<EOF
**WARNING**
Invalid alternates have been detected.
Beginning with version 2.0.0, yadm uses a new naming convention for alternate
files. Read more about this change here:
https://yadm.io/docs/upgrade_from_1
Or to learn more about alternates in general, read:
https://yadm.io/docs/alternates
To rename the invalid alternates run:
yadm mv <old name> <new name>
Invalid alternates detected:
${path_list}
***********
EOF
printf '%s\n' "$msg" >&2
}
function remove_stale_links() {
# review alternate candidates for stale links
# if a possible alt IS linked, but it's source is not part of alt_linked,
# remove it.
if readlink_available; then
for stale_candidate in "${possible_alts[@]}"; do
if [ -L "$stale_candidate" ]; then
src=$(readlink "$stale_candidate" 2>/dev/null)
if [ -n "$src" ]; then
for review_link in "${alt_linked[@]}"; do
[ "$src" = "$review_link" ] && continue 2
done
rm -f "$stale_candidate"
fi
fi
done
fi
}
function set_local_alt_values() {
local -a all_classes
all_classes=$(config --get-all local.class)
while IFS='' read -r class; do
local_classes+=("$class")
local_class="$class"
done <<< "$all_classes"
local_arch="$(config local.arch)"
if [ -z "$local_arch" ] ; then
local_arch=$(uname -m)
fi
local_system="$(config local.os)"
if [ -z "$local_system" ] ; then
local_system="$OPERATING_SYSTEM"
fi
local_host="$(config local.hostname)"
if [ -z "$local_host" ] ; then
local_host=$(uname -n)
local_host=${local_host%%.*} # trim any domain from hostname
fi
local_user="$(config local.user)"
if [ -z "$local_user" ] ; then
local_user=$(id -u -n)
fi
local_distro="$(query_distro)"
local_distro_family="$(query_distro_family)"
}
function alt_linking() {
local alt_scores=()
local alt_targets=()
local alt_sources=()
local alt_template_cmds=()
for alt_path in $(for tracked in "${tracked_files[@]}"; do printf "%s\n" "$tracked" "${tracked%/*}"; done | LC_ALL=C sort -u) "${ENCRYPT_INCLUDE_FILES[@]}"; do
alt_path="$YADM_BASE/$alt_path"
if [[ "$alt_path" =~ .\#\#. ]]; then
if [ -e "$alt_path" ] ; then
score_file "$alt_path"
fi
fi
done
for index in "${!alt_targets[@]}"; do
tgt="${alt_targets[$index]}"
src="${alt_sources[$index]}"
template_cmd="${alt_template_cmds[$index]}"
if [ -n "$template_cmd" ]; then
# a template is defined, process the template
# ensure the destination path exists
assert_parent "$tgt"
# remove any existing symlink before processing template
[ -L "$tgt" ] && rm -f "$tgt"
"$template_cmd" "$src" "$tgt"
elif [ -n "$src" ]; then
# a link source is defined, create symlink
debug "Linking $src to $tgt"
[ -n "$loud" ] && echo "Linking $src to $tgt"
# ensure the destination path exists
assert_parent "$tgt"
if [ "$do_copy" -eq 1 ]; then
# remove any existing symlink before copying
[ -L "$tgt" ] && rm -f "$tgt"
cp -f "$src" "$tgt"
else
ln_relative "$src" "$tgt"
fi
fi
done
}
function ln_relative() {
local full_source full_target target_dir
local full_source="$1"
local full_target="$2"
local target_dir="${full_target%/*}"
if [ "$target_dir" == "" ]; then
target_dir="/"
fi
local rel_source
rel_source=$(relative_path "$target_dir" "$full_source")
ln -nfs "$rel_source" "$full_target"
alt_linked+=("$rel_source")
}
function bootstrap() {
bootstrap_available || error_out "Cannot execute bootstrap\n'$YADM_BOOTSTRAP' is not an executable program."
# GIT_DIR should not be set for user's bootstrap code
unset GIT_DIR
echo "Executing $YADM_BOOTSTRAP"
exec "$YADM_BOOTSTRAP"
}
function clean() {
error_out "\"git clean\" has been disabled for safety. You could end up removing all unmanaged files."
}
function clone() {
DO_BOOTSTRAP=1
local -a args
local -i do_checkout=1
while [[ $# -gt 0 ]] ; do
case "$1" in
--bootstrap) # force bootstrap, without prompt
DO_BOOTSTRAP=2
;;
--no-bootstrap) # prevent bootstrap, without prompt
DO_BOOTSTRAP=3
;;
--checkout)
do_checkout=1
;;
-n|--no-checkout)
do_checkout=0
;;
--bare|--mirror|--recurse-submodules*|--recursive|--separate-git-dir=*)
# ignore arguments without separate parameter
;;
--separate-git-dir)
# ignore arguments with separate parameter
shift
;;
*)
args+=("$1")
;;
esac
shift
done
[ -n "$DEBUG" ] && display_private_perms "initial"
# safety check, don't attempt to clone when the repo is already present
[ -d "$YADM_REPO" ] && [ -z "$FORCE" ] &&
error_out "Git repo already exists. [$YADM_REPO]\nUse '-f' if you want to force it to be overwritten."
# remove existing if forcing the clone to happen anyway
[ -d "$YADM_REPO" ] && {
debug "Removing existing repo prior to clone"
"$GIT_PROGRAM" -C "$YADM_WORK" submodule deinit -f --all
rm -rf "$YADM_REPO"
}
local wc
wc="$(mk_tmp_dir)"
[ -d "$wc" ] || error_out "Unable to create temporary directory"
# first clone without checkout
debug "Doing an initial clone of the repository"
(cd "$wc" &&
"$GIT_PROGRAM" -c core.sharedrepository=0600 clone --no-checkout \
--separate-git-dir="$YADM_REPO" "${args[@]}" repo.git) || {
debug "Removing repo after failed clone"
rm -rf "$YADM_REPO" "$wc"
error_out "Unable to clone the repository"
}
configure_repo
rm -rf "$wc"
# then reset the index as the --no-checkout flag makes the index empty
"$GIT_PROGRAM" reset --quiet -- .
if [ "$YADM_WORK" = "$HOME" ]; then
debug "Determining if repo tracks private directories"
for private_dir in $(private_dirs all); do
found_log=$("$GIT_PROGRAM" log -n 1 -- "$private_dir" 2>/dev/null)
if [ -n "$found_log" ]; then
debug "Private directory $private_dir is tracked by repo"
assert_private_dirs "$private_dir"
fi
done
fi
# finally check out (unless instructed not to) all files that don't exist in $YADM_WORK
if [[ $do_checkout -ne 0 ]]; then
[ -n "$DEBUG" ] && display_private_perms "pre-checkout"
cd_work "Clone" || return
"$GIT_PROGRAM" ls-files --deleted | while IFS= read -r file; do
"$GIT_PROGRAM" checkout -- ":/$file"
done
if [ -n "$("$GIT_PROGRAM" ls-files --modified)" ]; then
local msg
IFS='' read -r -d '' msg <<EOF
**NOTE**
Local files with content that differs from the ones just
cloned were found in $YADM_WORK. They have been left
unmodified.
Please review and resolve any differences appropriately.
If you know what you're doing, and want to overwrite the
tracked files, consider 'yadm checkout "$YADM_WORK"'.
EOF
printf '%s\n' "$msg"
fi
[ -n "$DEBUG" ] && display_private_perms "post-checkout"
CHANGES_POSSIBLE=1
fi
}
function config() {
use_repo_config=0
local_options="^local\.(class|arch|os|hostname|user)$"
for option in "$@"; do
[[ "$option" =~ $local_options ]] && use_repo_config=1
done
if [ -z "$*" ] ; then
# with no parameters, provide some helpful documentation
echo "yadm supports the following configurations:"
echo
local IFS=$'\n'
for supported_config in $(introspect_configs); do
echo " ${supported_config}"
done
echo
local msg
read -r -d '' msg << EOF
Please read the CONFIGURATION section in the man
page for more details about configurations, and
how to adjust them.
EOF
printf '%s\n' "$msg"
elif [ "$use_repo_config" -eq 1 ]; then
require_repo
# operate on the yadm repo's configuration file
# this is always local to the machine
"$GIT_PROGRAM" config "$@"
CHANGES_POSSIBLE=1
else
# make sure parent folder of config file exists
assert_parent "$YADM_CONFIG"
# operate on the yadm configuration file
"$GIT_PROGRAM" config --file="$(mixed_path "$YADM_CONFIG")" "$@"
fi
}
function _set_gpg_options() {
gpg_key="$(config yadm.gpg-recipient)"
if [ "$gpg_key" = "ASK" ]; then
GPG_OPTS=("--no-default-recipient" "-e")
elif [ "$gpg_key" != "" ]; then
GPG_OPTS=("-e")
for key in $gpg_key; do
GPG_OPTS+=("-r $key")
done
else
GPG_OPTS=("-c")
fi
}
function _get_openssl_ciphername() {
OPENSSL_CIPHERNAME="$(config yadm.openssl-ciphername)"
if [ -z "$OPENSSL_CIPHERNAME" ]; then
OPENSSL_CIPHERNAME="aes-256-cbc"
fi
echo "$OPENSSL_CIPHERNAME"
}
function _set_openssl_options() {
cipher_name="$(_get_openssl_ciphername)"
OPENSSL_OPTS=("-${cipher_name}" -salt)
if [ "$(config --bool yadm.openssl-old)" == "true" ]; then