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|
config_error() {
local -r message="$1"; shift
printf 'ERROR: %s\n' "$message" >&2
return 1
}
require_config_var() {
local -r name="$1"; shift
if [ -z "${!name+x}" ] || [ -z "${!name}" ]; then
config_error "$name must be set in shuriken configuration"
fi
}
validate_positive_integer_config_var() {
local -r name="$1"; shift
local -r value="${!name}"
if [[ ! "$value" =~ ^[0-9]+$ ]] || (( value < 1 )); then
config_error "$name must be a positive integer"
fi
}
validate_optional_positive_integer_config_var() {
local -r name="$1"; shift
if [ -n "${!name}" ]; then
validate_positive_integer_config_var "$name"
fi
}
validate_yes_no_config_var() {
local -r name="$1"; shift
local -r value="${!name}"
case "$value" in
yes|no)
;;
*)
config_error "$name must be yes or no"
;;
esac
}
validate_dist_dir() {
local existing_parent
if [ -e "$DIST_DIR" ]; then
if [ ! -d "$DIST_DIR" ]; then
config_error "DIST_DIR $DIST_DIR must be a directory"
fi
if [[ ! -w "$DIST_DIR" || ! -x "$DIST_DIR" ]]; then
config_error "DIST_DIR $DIST_DIR must be writable"
fi
return
fi
existing_parent=$(existing_parent_dir "$DIST_DIR")
if [ ! -d "$existing_parent" ]; then
config_error "DIST_DIR parent $existing_parent must be a directory"
fi
if [[ ! -w "$existing_parent" || ! -x "$existing_parent" ]]; then
config_error "DIST_DIR parent $existing_parent must be writable"
fi
}
validate_template_dir_access() {
if [[ ! -d "$TEMPLATE_DIR" || ! -r "$TEMPLATE_DIR" \
|| ! -x "$TEMPLATE_DIR" ]]; then
config_error "TEMPLATE_DIR $TEMPLATE_DIR must be a readable directory"
fi
}
validate_template_file() {
local -r template_name="$1"; shift
if [ ! -r "$TEMPLATE_DIR/$template_name.tmpl" ]; then
config_error \
"template file $TEMPLATE_DIR/$template_name.tmpl must be readable"
fi
}
validate_template_dir() {
local template_name
local -a required_templates=(
details
footer
header
next
prev
preview
redirect
view
)
validate_template_dir_access
if [ "${SPLASH_PAGE:-yes}" = yes ]; then
required_templates+=(splash)
fi
for template_name in "${required_templates[@]}"; do
validate_template_file "$template_name"
done
}
validate_refresh_splash_config() {
local required_var
local -a required_vars=(
TITLE
DIST_DIR
TEMPLATE_DIR
)
for required_var in "${required_vars[@]}"; do
require_config_var "$required_var"
done
validate_yes_no_config_var SPLASH_PAGE
if [ "${SPLASH_PAGE:-yes}" != yes ]; then
config_error 'SPLASH_PAGE must be yes to refresh the splash page'
fi
validate_dist_dir
validate_template_dir_access
validate_template_file splash
if [ ! -d "$DIST_DIR/photos" ]; then
config_error "DIST_DIR photos directory $DIST_DIR/photos must exist"
fi
if [ ! -d "$DIST_DIR/blurs" ]; then
config_error "DIST_DIR blurs directory $DIST_DIR/blurs must exist"
fi
}
validate_imagemagick() {
if command -v magick >/dev/null 2>&1; then
return
fi
if command -v convert >/dev/null 2>&1; then
return
fi
config_error 'ImageMagick is required; install magick or convert'
}
validate_common_config() {
local required_var
local -a required_vars=(
TITLE
THUMBHEIGHT
MAXPREVIEWS
IMAGE_JOBS
INCOMING_DIR
DIST_DIR
TEMPLATE_DIR
)
for required_var in "${required_vars[@]}"; do
require_config_var "$required_var"
done
validate_optional_positive_integer_config_var HEIGHT
validate_positive_integer_config_var THUMBHEIGHT
validate_positive_integer_config_var MAXPREVIEWS
validate_positive_integer_config_var IMAGE_JOBS
validate_positive_integer_config_var IMAGEMAGICK_TIMEOUT
validate_positive_integer_config_var TAR_TIMEOUT
validate_yes_no_config_var SHUFFLE
validate_yes_no_config_var SPLASH_PAGE
validate_yes_no_config_var TARBALL_INCLUDE
}
validate_generation_config() {
local -r require_imagemagick="${1:-yes}"
validate_common_config
if [ ! -d "$INCOMING_DIR" ]; then
config_error "You have to create $INCOMING_DIR first"
fi
if [[ ! -r "$INCOMING_DIR" || ! -x "$INCOMING_DIR" ]]; then
config_error "INCOMING_DIR $INCOMING_DIR must be readable"
fi
validate_dist_dir
validate_template_dir
if [ "$require_imagemagick" = yes ]; then
validate_imagemagick
fi
}
validate_print_config() {
local -a tar_opts=()
local -a sync_destinations=()
validate_common_config
resolve_tar_opts tar_opts
resolve_sync_destinations sync_destinations
validate_yes_no_config_var SYNC_DELETE
}
validate_sync_destinations() {
local -a sync_destinations=()
resolve_sync_destinations sync_destinations
if (( ${#sync_destinations[@]} == 0 )); then
config_error 'SYNC_DESTINATIONS must contain at least one destination'
fi
}
validate_rsync() {
if command -v rsync >/dev/null 2>&1; then
return
fi
config_error 'rsync is required to sync generated output'
}
validate_sync_config() {
require_config_var DIST_DIR
validate_yes_no_config_var SYNC_DELETE
validate_sync_destinations
if [[ ! -d "$DIST_DIR" || ! -r "$DIST_DIR" || ! -x "$DIST_DIR" ]]; then
config_error "DIST_DIR $DIST_DIR must be a readable directory"
fi
validate_rsync
}
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