#!/bin/sh # yadm - Yet Another Dotfiles Manager # Copyright (C) 2015-2017 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, version 3 of the License. # 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 . #; execute script with bash (shebang line is /bin/sh for portability) if [ -z "$BASH_VERSION" ]; then [ "$YADM_TEST" != 1 ] && exec bash "$0" "$@" fi VERSION=1.11.0 YADM_WORK="$HOME" YADM_DIR="$HOME/.yadm" YADM_REPO="repo.git" YADM_CONFIG="config" YADM_ENCRYPT="encrypt" YADM_ARCHIVE="files.gpg" YADM_BOOTSTRAP="bootstrap" HOOK_COMMAND="" FULL_COMMAND="" GPG_PROGRAM="gpg" GIT_PROGRAM="git" LS_PROGRAM="/bin/ls" ENVTPL_PROGRAM="envtpl" LSB_RELEASE_PROGRAM="lsb_release" PROC_VERSION="/proc/version" OPERATING_SYSTEM="Unknown" #; 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 FULL_COMMAND="$*" #; create the YADM_DIR if it doesn't exist yet [ -d "$YADM_DIR" ] || mkdir -p "$YADM_DIR" #; parse command line arguments local retval=0 internal_commands="^(alt|bootstrap|clean|clone|config|decrypt|encrypt|enter|help|init|introspect|list|perms|version)$" 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_ARGS=() shift 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() and clone() FORCE="YES" ;; -l) #; used by decrypt() DO_LIST="YES" ;; -w) #; used by init() and clone() if [[ ! "$2" =~ ^/ ]] ; then error_out "You must specify a fully qualified work tree" fi YADM_WORK="$2" shift ;; *) #; any unhandled arguments YADM_ARGS+=("$1") ;; esac shift done [ ! -d "$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 $retval } #; ****** yadm Commands ****** function alt() { require_repo local_class="$(config local.class)" if [ -z "$local_class" ] ; then match_class="%" else match_class="$local_class" fi match_class="(%|$match_class)" local_system="$(config local.os)" if [ -z "$local_system" ] ; then local_system="$OPERATING_SYSTEM" fi match_system="(%|$local_system)" local_host="$(config local.hostname)" if [ -z "$local_host" ] ; then local_host=$(hostname) local_host=${local_host%%.*} #; trim any domain from hostname fi match_host="(%|$local_host)" local_user="$(config local.user)" if [ -z "$local_user" ] ; then local_user=$(id -u -n) fi match_user="(%|$local_user)" #; regex for matching "##CLASS.SYSTEM.HOSTNAME.USER" match1="^(.+)##(()|$match_system|$match_system\.$match_host|$match_system\.$match_host\.$match_user)$" match2="^(.+)##($match_class|$match_class\.$match_system|$match_class\.$match_system\.$match_host|$match_class\.$match_system\.$match_host\.$match_user)$" #; process relative to YADM_WORK YADM_WORK=$(unix_path "$("$GIT_PROGRAM" config core.worktree)") cd "$YADM_WORK" || { debug "Alternates not processed, unable to cd to $YADM_WORK" return } #; only be noisy if the "alt" command was run directly [ "$YADM_COMMAND" = "alt" ] && loud="YES" #; build a list of files from YADM_ENCRYPT ENC_FILES=() index=0 if [ -f "$YADM_ENCRYPT" ] ; then while IFS='' read -r glob || [ -n "$glob" ]; do if [[ ! $glob =~ ^# && ! $glob =~ ^[[:space:]]*$ ]] ; then # echo "working on ->$glob<-" local IFS=$'\n' for matching_file in $(eval "$LS_PROGRAM" "$glob" 2>/dev/null); do ENC_FILES[$index]="$matching_file" ((index++)) done fi done < "$YADM_ENCRYPT" fi #; decide if a copy should be done instead of a symbolic link local do_copy=0 if [[ $OPERATING_SYSTEM == CYGWIN* ]] ; then if [[ $(config --bool yadm.cygwin-copy) == "true" ]] ; then do_copy=1 fi fi #; loop over all "tracked" files #; for every file which matches the above regex, create a symlink for match in $match1 $match2; do last_linked='' local IFS=$'\n' for tracked_file in $("$GIT_PROGRAM" ls-files | sort) "${ENC_FILES[@]}"; do tracked_file="$YADM_WORK/$tracked_file" #; process both the path, and it's parent directory for alt_path in "$tracked_file" "${tracked_file%/*}"; do if [ -e "$alt_path" ] ; then if [[ $alt_path =~ $match ]] ; then if [ "$alt_path" != "$last_linked" ] ; then new_link="${BASH_REMATCH[1]}" debug "Linking $alt_path to $new_link" [ -n "$loud" ] && echo "Linking $alt_path to $new_link" if [ "$do_copy" -eq 1 ]; then if [ -L "$new_link" ]; then rm -f "$new_link" fi cp -f "$alt_path" "$new_link" else ln -nfs "$alt_path" "$new_link" fi last_linked="$alt_path" fi fi fi done done done #; loop over all "tracked" files #; for every file which is a *##yadm.j2 create a real file local IFS=$'\n' local match="^(.+)##yadm\\.j2$" for tracked_file in $("$GIT_PROGRAM" ls-files | sort) $(cat "$YADM_ENCRYPT" 2>/dev/null); do tracked_file="$YADM_WORK/$tracked_file" if [ -e "$tracked_file" ] ; then if [[ $tracked_file =~ $match ]] ; then real_file="${BASH_REMATCH[1]}" if envtpl_available; then debug "Creating $real_file from template $tracked_file" [ -n "$loud" ] && echo "Creating $real_file from template $tracked_file" YADM_CLASS="$local_class" \ YADM_OS="$local_system" \ YADM_HOSTNAME="$local_host" \ YADM_USER="$local_user" \ YADM_DISTRO=$(query_distro) \ "$ENVTPL_PROGRAM" < "$tracked_file" > "$real_file" else debug "envtpl not available, not creating $real_file from template $tracked_file" [ -n "$loud" ] && echo "envtpl not available, not creating $real_file from template $tracked_file" fi fi fi done } function bootstrap() { bootstrap_available || error_out "Cannot execute bootstrap\n'$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 clone_args=() while [[ $# -gt 0 ]] ; do key="$1" case $key in --bootstrap) #; force bootstrap, without prompt DO_BOOTSTRAP=2 ;; --no-bootstrap) #; prevent bootstrap, without prompt DO_BOOTSTRAP=3 ;; *) #; main arguments are kept intact clone_args+=("$1") ;; esac shift done [ -n "$DEBUG" ] && display_private_perms "initial" #; clone will begin with a bare repo local empty= init $empty #; add the specified remote, and configure the repo to track origin/master debug "Adding remote to new repo" "$GIT_PROGRAM" remote add origin "${clone_args[@]}" debug "Configuring new repo to track origin/master" "$GIT_PROGRAM" config branch.master.remote origin "$GIT_PROGRAM" config branch.master.merge refs/heads/master #; fetch / merge (and possibly fallback to reset) debug "Doing an initial fetch of the origin" "$GIT_PROGRAM" fetch origin || { debug "Removing repo after failed clone" rm -rf "$YADM_REPO" error_out "Unable to fetch origin ${clone_args[0]}" } debug "Determining if repo tracks private directories" for private_dir in .ssh/ .gnupg/; do found_log=$("$GIT_PROGRAM" log -n 1 origin/master -- "$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 [ -n "$DEBUG" ] && display_private_perms "pre-merge" debug "Doing an initial merge of origin/master" "$GIT_PROGRAM" merge origin/master || { debug "Merge failed, doing a reset and stashing conflicts." "$GIT_PROGRAM" reset origin/master if cd "$YADM_WORK"; then # necessary because of a bug in Git "$GIT_PROGRAM" -c user.name='yadm clone' -c user.email='yadm' stash save Conflicts preserved from yadm clone command 2>&1 cat </dev/null); do ENC_FILES[$index]="$matching_file" ((index++)) done fi done < "$YADM_ENCRYPT" #; report which files will be encrypted echo "Encrypting the following files:" "$LS_PROGRAM" -1 "${ENC_FILES[@]}" echo #; encrypt all files which match the globs if tar -f - -c "${ENC_FILES[@]}" | $GPG_PROGRAM --yes "${GPG_OPTS[@]}" --output "$YADM_ARCHIVE"; then echo "Wrote new file: $YADM_ARCHIVE" else error_out "Unable to write $YADM_ARCHIVE" fi #; offer to add YADM_ARCHIVE if untracked archive_status=$("$GIT_PROGRAM" status --porcelain -uall "$(mixed_path "$YADM_ARCHIVE")" 2>/dev/null) archive_regex="^\?\?" if [[ $archive_status =~ $archive_regex ]] ; then echo "It appears that $YADM_ARCHIVE is not tracked by yadm's repository." echo "Would you like to add it now? (y/n)" read -r answer < /dev/tty if [[ $answer =~ ^[yY]$ ]] ; then "$GIT_PROGRAM" add "$(mixed_path "$YADM_ARCHIVE")" fi fi CHANGES_POSSIBLE=1 } function enter() { require_shell require_repo shell_opts="" shell_path="" if [[ "$SHELL" =~ bash$ ]]; then shell_opts="--norc" shell_path="\w" elif [[ "$SHELL" =~ [cz]sh$ ]]; then shell_opts="-f" shell_path="%~" fi echo "Entering yadm repo" yadm_prompt="yadm shell ($YADM_REPO) $shell_path > " PROMPT="$yadm_prompt" PS1="$yadm_prompt" "$SHELL" $shell_opts echo "Leaving yadm repo" } function git_command() { require_repo #; translate 'gitconfig' to 'config' -- 'config' is reserved for yadm if [ "$1" = "gitconfig" ] ; then set -- "config" "${@:2}" fi #; ensure private .ssh and .gnupg directories exist first #; TODO: consider restricting this to only commands which modify the work-tree auto_private_dirs=$(config --bool yadm.auto-private-dirs) if [ "$auto_private_dirs" != "false" ] ; then assert_private_dirs .gnupg/ .ssh/ fi CHANGES_POSSIBLE=1 #; pass commands through to git debug "Running git command $GIT_PROGRAM $*" "$GIT_PROGRAM" "$@" return "$?" } function help() { cat << EOF Usage: yadm [options...] Manage dotfiles maintained in a Git repository. Manage alternate files for specific systems or hosts. Encrypt/decrypt private files. Git Commands: Any Git command or alias can be used as a . It will operate on yadm's repository and files in the work tree (usually \$HOME). Commands: yadm init [-f] - Initialize an empty repository yadm clone [-f] - Clone an existing repository yadm config - Configure a setting yadm list [-a] - List tracked files yadm alt - Create links for alternates yadm bootstrap - Execute \$HOME/.yadm/bootstrap yadm encrypt - Encrypt files yadm decrypt [-l] - Decrypt files yadm perms - Fix perms for private files Files: \$HOME/.yadm/config - yadm's configuration file \$HOME/.yadm/repo.git - yadm's Git repository \$HOME/.yadm/encrypt - List of globs used for encrypt/decrypt \$HOME/.yadm/files.gpg - Encrypted data stored here Use "man yadm" for complete documentation. EOF exit_with_hook 1 } function init() { #; safety check, don't attempt to init when the repo is already present [ -d "$YADM_REPO" ] && [ -z "$FORCE" ] && \ error_out "Git repo already exists. [$YADM_REPO]\nUse '-f' if you want to force it to be overwritten." #; remove existing if forcing the init to happen anyway [ -d "$YADM_REPO" ] && { debug "Removing existing repo prior to init" rm -rf "$YADM_REPO" } #; init a new bare repo debug "Init new repo" "$GIT_PROGRAM" init --shared=0600 --bare "$(mixed_path "$YADM_REPO")" "$@" configure_repo CHANGES_POSSIBLE=1 } function introspect() { case "$1" in commands|configs|repo|switches) "introspect_$1" ;; esac } function introspect_commands() { cat <<-EOF alt bootstrap clean clone config decrypt encrypt enter gitconfig help init introspect list perms version EOF } function introspect_configs() { cat << EOF local.class local.hostname local.os local.user yadm.auto-alt yadm.auto-perms yadm.auto-private-dirs yadm.cygwin-copy yadm.git-program yadm.gpg-perms yadm.gpg-program yadm.gpg-recipient yadm.ssh-perms EOF } function introspect_repo() { echo "$YADM_REPO" } function introspect_switches() { cat <<-EOF --yadm-archive --yadm-bootstrap --yadm-config --yadm-dir --yadm-encrypt --yadm-repo -Y EOF } function list() { require_repo #; process relative to YADM_WORK when --all is specified if [ -n "$LIST_ALL" ] ; then YADM_WORK=$(unix_path "$("$GIT_PROGRAM" config core.worktree)") cd "$YADM_WORK" || { debug "List not processed, unable to cd to $YADM_WORK" return } fi #; list tracked files "$GIT_PROGRAM" ls-files } function perms() { require_ls #; TODO: prevent repeats in the files changed #; process relative to YADM_WORK YADM_WORK=$(unix_path "$("$GIT_PROGRAM" config core.worktree)") cd "$YADM_WORK" || { debug "Perms not processed, unable to cd to $YADM_WORK" return } GLOBS=() #; include the archive created by "encrypt" [ -f "$YADM_ARCHIVE" ] && GLOBS=("${GLOBS[@]}" "$YADM_ARCHIVE") #; include all .ssh files (unless disabled) if [[ $(config --bool yadm.ssh-perms) != "false" ]] ; then GLOBS=("${GLOBS[@]}" ".ssh" ".ssh/*") fi #; include all gpg files (unless disabled) if [[ $(config --bool yadm.gpg-perms) != "false" ]] ; then GLOBS=("${GLOBS[@]}" ".gnupg" ".gnupg/*") fi #; include globs found in YADM_ENCRYPT (if present) if [ -f "$YADM_ENCRYPT" ] ; then while IFS='' read -r glob || [ -n "$glob" ]; do if [[ ! $glob =~ ^# ]] ; then GLOBS=("${GLOBS[@]}" $(eval "$LS_PROGRAM" "$glob" 2>/dev/null)) fi done < "$YADM_ENCRYPT" fi #; remove group/other permissions from collected globs #shellcheck disable=SC2068 #(SC2068 is disabled because in this case, we desire globbing) chmod -f go-rwx ${GLOBS[@]} >/dev/null 2>&1 #; TODO: detect and report changing permissions in a portable way } function version() { echo "yadm $VERSION" exit_with_hook 0 } #; ****** Utility Functions ****** function query_distro() { distro="" if command -v "$LSB_RELEASE_PROGRAM" >/dev/null 2>&1; then distro=$($LSB_RELEASE_PROGRAM -si 2>/dev/null) fi echo "$distro" } function process_global_args() { #; global arguments are removed before the main processing is done MAIN_ARGS=() while [[ $# -gt 0 ]] ; do key="$1" case $key in -Y|--yadm-dir) #; override the standard YADM_DIR if [[ ! "$2" =~ ^/ ]] ; then error_out "You must specify a fully qualified yadm directory" fi YADM_DIR="$2" shift ;; --yadm-repo) #; override the standard YADM_REPO if [[ ! "$2" =~ ^/ ]] ; then error_out "You must specify a fully qualified repo path" fi YADM_OVERRIDE_REPO="$2" shift ;; --yadm-config) #; override the standard YADM_CONFIG if [[ ! "$2" =~ ^/ ]] ; then error_out "You must specify a fully qualified config path" fi YADM_OVERRIDE_CONFIG="$2" shift ;; --yadm-encrypt) #; override the standard YADM_ENCRYPT if [[ ! "$2" =~ ^/ ]] ; then error_out "You must specify a fully qualified encrypt path" fi YADM_OVERRIDE_ENCRYPT="$2" shift ;; --yadm-archive) #; override the standard YADM_ARCHIVE if [[ ! "$2" =~ ^/ ]] ; then error_out "You must specify a fully qualified archive path" fi YADM_OVERRIDE_ARCHIVE="$2" shift ;; --yadm-bootstrap) #; override the standard YADM_BOOTSTRAP if [[ ! "$2" =~ ^/ ]] ; then error_out "You must specify a fully qualified bootstrap path" fi YADM_OVERRIDE_BOOTSTRAP="$2" shift ;; *) #; main arguments are kept intact MAIN_ARGS+=("$1") ;; esac shift done } function configure_paths() { #; change all paths to be relative to YADM_DIR YADM_REPO="$YADM_DIR/$YADM_REPO" YADM_CONFIG="$YADM_DIR/$YADM_CONFIG" YADM_ENCRYPT="$YADM_DIR/$YADM_ENCRYPT" YADM_ARCHIVE="$YADM_DIR/$YADM_ARCHIVE" YADM_BOOTSTRAP="$YADM_DIR/$YADM_BOOTSTRAP" #; independent overrides for paths if [ -n "$YADM_OVERRIDE_REPO" ]; then YADM_REPO="$YADM_OVERRIDE_REPO" fi if [ -n "$YADM_OVERRIDE_CONFIG" ]; then YADM_CONFIG="$YADM_OVERRIDE_CONFIG" fi if [ -n "$YADM_OVERRIDE_ENCRYPT" ]; then YADM_ENCRYPT="$YADM_OVERRIDE_ENCRYPT" fi if [ -n "$YADM_OVERRIDE_ARCHIVE" ]; then YADM_ARCHIVE="$YADM_OVERRIDE_ARCHIVE" fi if [ -n "$YADM_OVERRIDE_BOOTSTRAP" ]; then YADM_BOOTSTRAP="$YADM_OVERRIDE_BOOTSTRAP" fi #; use the yadm repo for all git operations GIT_DIR=$(mixed_path "$YADM_REPO") export GIT_DIR } function configure_repo() { debug "Configuring new repo" #; change bare to false (there is a working directory) "$GIT_PROGRAM" config core.bare 'false' #; set the worktree for the yadm repo "$GIT_PROGRAM" config core.worktree "$(mixed_path "$YADM_WORK")" #; by default, do not show untracked files and directories "$GIT_PROGRAM" config status.showUntrackedFiles no #; possibly used later to ensure we're working on the yadm repo "$GIT_PROGRAM" config yadm.managed 'true' } function set_operating_system() { #; special detection of WSL (windows subsystem for linux) local proc_version proc_version=$(cat "$PROC_VERSION" 2>/dev/null) if [[ "$proc_version" =~ Microsoft ]]; then OPERATING_SYSTEM="WSL" else OPERATING_SYSTEM=$(uname -s) fi case "$OPERATING_SYSTEM" in CYGWIN*) git_version=$(git --version 2>/dev/null) if [[ "$git_version" =~ windows ]] ; then USE_CYGPATH=1 fi ;; *) ;; esac } function debug() { [ -n "$DEBUG" ] && echo -e "DEBUG: $*" } function error_out() { echo -e "ERROR: $*" exit_with_hook 1 } function exit_with_hook() { invoke_hook "post" "$1" exit "$1" } function invoke_hook() { mode="$1" exit_status="$2" hook_command="$YADM_DIR/hooks/${mode}_$HOOK_COMMAND" if [ -x "$hook_command" ] ; then debug "Invoking hook: $hook_command" #; expose some internal data to all hooks work=$(unix_path "$("$GIT_PROGRAM" config core.worktree)") YADM_HOOK_COMMAND=$HOOK_COMMAND YADM_HOOK_EXIT=$exit_status YADM_HOOK_FULL_COMMAND=$FULL_COMMAND YADM_HOOK_REPO=$YADM_REPO YADM_HOOK_WORK=$work export YADM_HOOK_COMMAND export YADM_HOOK_EXIT export YADM_HOOK_FULL_COMMAND export YADM_HOOK_REPO export YADM_HOOK_WORK "$hook_command" hook_status=$? #; failing "pre" hooks will prevent commands from being run if [ "$mode" = "pre" ] && [ "$hook_status" -ne 0 ]; then echo "Hook $hook_command was not successful" echo "$HOOK_COMMAND will not be run" exit "$hook_status" fi fi } function assert_private_dirs() { work=$(unix_path "$("$GIT_PROGRAM" config core.worktree)") for private_dir in "$@"; do if [ ! -d "$work/$private_dir" ]; then debug "Creating $work/$private_dir" #shellcheck disable=SC2174 mkdir -m 0700 -p "$work/$private_dir" >/dev/null 2>&1 fi done } function display_private_perms() { when="$1" for private_dir in .ssh .gnupg; do if [ -d "$YADM_WORK/$private_dir" ]; then private_perms=$(ls -ld "$YADM_WORK/$private_dir") debug "$when" private dir perms "$private_perms" fi done } #; ****** Auto Functions ****** function auto_alt() { #; process alternates if there are possible changes if [ "$CHANGES_POSSIBLE" = "1" ] ; then auto_alt=$(config --bool yadm.auto-alt) if [ "$auto_alt" != "false" ] ; then [ -d "$YADM_REPO" ] && alt fi fi } function auto_perms() { #; process permissions if there are possible changes if [ "$CHANGES_POSSIBLE" = "1" ] ; then auto_perms=$(config --bool yadm.auto-perms) if [ "$auto_perms" != "false" ] ; then [ -d "$YADM_REPO" ] && perms fi fi } function auto_bootstrap() { bootstrap_available || return [ "$DO_BOOTSTRAP" -eq 0 ] && return [ "$DO_BOOTSTRAP" -eq 3 ] && return [ "$DO_BOOTSTRAP" -eq 2 ] && bootstrap if [ "$DO_BOOTSTRAP" -eq 1 ] ; then echo "Found $YADM_BOOTSTRAP" echo "It appears that a bootstrap program exists." echo "Would you like to execute it now? (y/n)" read -r answer < /dev/tty if [[ $answer =~ ^[yY]$ ]] ; then bootstrap fi fi } #; ****** Prerequisites Functions ****** function require_archive() { [ -f "$YADM_ARCHIVE" ] || error_out "$YADM_ARCHIVE does not exist. did you forget to create it?" } function require_encrypt() { [ -f "$YADM_ENCRYPT" ] || error_out "$YADM_ENCRYPT does not exist. did you forget to create it?" } function require_git() { local alt_git alt_git="$(config yadm.git-program)" local more_info more_info="" if [ "$alt_git" != "" ] ; then GIT_PROGRAM="$alt_git" more_info="\nThis command has been set via the yadm.git-program configuration." fi command -v "$GIT_PROGRAM" >/dev/null 2>&1 || \ error_out "This functionality requires Git to be installed, but the command '$GIT_PROGRAM' cannot be located.$more_info" } function require_gpg() { local alt_gpg alt_gpg="$(config yadm.gpg-program)" local more_info more_info="" if [ "$alt_gpg" != "" ] ; then GPG_PROGRAM="$alt_gpg" more_info="\nThis command has been set via the yadm.gpg-program configuration." fi command -v "$GPG_PROGRAM" >/dev/null 2>&1 || \ error_out "This functionality requires GPG to be installed, but the command '$GPG_PROGRAM' cannot be located.$more_info" } function require_repo() { [ -d "$YADM_REPO" ] || error_out "Git repo does not exist. did you forget to run 'init' or 'clone'?" } function require_ls() { if [ ! -f "$LS_PROGRAM" ] ; then command -v ls >/dev/null 2>&1 || \ error_out "This functionality requires 'ls' to be installed at '$LS_PROGRAM' or listed in your \$PATH" LS_PROGRAM=ls fi } function require_shell() { [ -x "$SHELL" ] || error_out "\$SHELL does not refer to an executable." } function bootstrap_available() { [ -f "$YADM_BOOTSTRAP" ] && [ -x "$YADM_BOOTSTRAP" ] && return return 1 } function envtpl_available() { command -v "$ENVTPL_PROGRAM" >/dev/null 2>&1 && return return 1 } #; ****** Directory tranlations ****** function unix_path() { #; for paths used by bash/yadm if [ "$USE_CYGPATH" = "1" ] ; then cygpath -u "$1" else echo "$1" fi } function mixed_path() { #; for paths used by Git if [ "$USE_CYGPATH" = "1" ] ; then cygpath -m "$1" else echo "$1" fi } #; ****** Main processing (when not unit testing) ****** if [ "$YADM_TEST" != 1 ] ; then process_global_args "$@" set_operating_system configure_paths main "${MAIN_ARGS[@]}" fi