refactor: improve templater with new functionality
This commit is contained in:
parent
d17ccfc049
commit
1bc1e3d3ed
@ -1,24 +1,132 @@
|
||||
#!/usr/bin/env bash
|
||||
|
||||
# "Import" our needed functions from our library
|
||||
LIBRARY_PATH="/usr/local/lib/Custom-Scripts"
|
||||
# shellcheck source=/usr/local/lib/
|
||||
if ! source "${LIBRARY_PATH}/Logging-RGB.bash"; then
|
||||
echo "Unable to source Logging-RGB.bash at ${LIBRARY_PATH}"
|
||||
exit 1
|
||||
fi
|
||||
# shellcheck source=/usr/local/lib/
|
||||
if ! source "${LIBRARY_PATH}/Trim.bash"; then
|
||||
log "error" "Unable to source Trim.bash at ${LIBRARY_PATH}"
|
||||
exit 1
|
||||
fi
|
||||
echo_rgb() {
|
||||
# Echo a colored string to the terminal based on rgb values
|
||||
#
|
||||
# Positional Arguments:
|
||||
#
|
||||
# message <type: string> <position: 1> <required: true>
|
||||
# - The message to be printed to stdout
|
||||
# red <type: int> <position: 2> <required: true>
|
||||
# - The red value from 0 to 255
|
||||
# green <type: int> <position: 3> <required: true>
|
||||
# - The green value from 0 to 255
|
||||
# blue <type: int> <position: 4> <required: true>
|
||||
# - The blue value from 0 to 255
|
||||
#
|
||||
# Usage:
|
||||
# echo_rgb "Yep" 10 8 30
|
||||
#
|
||||
# POSIX Compliant:
|
||||
# N/A
|
||||
#
|
||||
|
||||
# Tmp file used because most distros have this dir exist in RAM, use PID of our process to write to
|
||||
TEMP_FILE="/tmp/$$"
|
||||
local red
|
||||
local green
|
||||
local blue
|
||||
local input
|
||||
|
||||
input="${1}"
|
||||
red="${2}"
|
||||
green="${3}"
|
||||
blue="${4}"
|
||||
|
||||
if [ -t 1 ]; then
|
||||
printf "\e[0;38;2;%s;%s;%sm%s\e[m\n" "${red}" "${green}" "${blue}" "${input}"
|
||||
else
|
||||
printf "%s\n" "${input}"
|
||||
fi
|
||||
}
|
||||
|
||||
log() {
|
||||
# Print a message and send it to stdout or stderr depending upon log level, also configurable with debug etc.
|
||||
#
|
||||
# Arguments:
|
||||
# level <type: string> <position: 1> <required: true>
|
||||
# - The log level, defined within a case check in this function
|
||||
# message <type: string> <position: 2> <required: true>
|
||||
# - The info message
|
||||
# line_number <type: int> <position: 3> <required: false>
|
||||
# - The line number of the calling function (${LINNO})
|
||||
#
|
||||
# Usage:
|
||||
# log "info" "Could not find that directory"
|
||||
#
|
||||
# POSIX Compliant:
|
||||
# Yes
|
||||
#
|
||||
|
||||
# Set debug status depending if a global debug variable has been set to either 1 or 0
|
||||
local debug
|
||||
if [ ${DEBUG} ]; then
|
||||
debug=${DEBUG}
|
||||
else
|
||||
debug=0
|
||||
fi
|
||||
|
||||
local FORMAT
|
||||
FORMAT="[$(echo_rgb "$(date +%Y-%m-%dT%H:%M:%S)" 180 140 255)]"
|
||||
|
||||
# Convert the level to uppercase
|
||||
local level
|
||||
level=$(echo "${1}" | tr '[:lower:]' '[:upper:]')
|
||||
|
||||
local message
|
||||
message="${2}"
|
||||
|
||||
case "${level}" in
|
||||
INFO)
|
||||
# Output all info log levels to stdout
|
||||
printf "${FORMAT}[$(echo_rgb "INFO" 0 140 255)] %s\n" "${message}" >&1
|
||||
return 0
|
||||
;;
|
||||
WARN | WARNING)
|
||||
# Output all warning log levels to stdout
|
||||
printf "${FORMAT}[$(echo_rgb "WARNING" 255 255 0)] %s\n" "${message}" >&1
|
||||
return 0
|
||||
;;
|
||||
DEBUG)
|
||||
# Output all debug log levels to stdout
|
||||
if [ "${DEBUG}" ]; then
|
||||
printf "${FORMAT}[$(echo_rgb "DEBUG" 0 160 110)] %s\n" "${message}" >&1
|
||||
fi
|
||||
return 0
|
||||
;;
|
||||
ERROR)
|
||||
# Output all error log levels to stderr
|
||||
printf "${FORMAT}[$(echo_rgb "ERROR" 255 0 0)] %s\n" "${message}" >&2
|
||||
return 0
|
||||
;;
|
||||
# Further log levels can be added by extending this switch statement with more comparisons
|
||||
|
||||
*) # Default case, no matches
|
||||
# Returns non-zero code as an improper log option was passed, this helps with using `set -e`
|
||||
printf "${FORMAT}[ERROR] %s\n" "Invalid log level passed, received level \"${level}\" with message \"${message}\"" >&2
|
||||
return 1
|
||||
;;
|
||||
esac
|
||||
}
|
||||
|
||||
trim() {
|
||||
local input="${1}"
|
||||
|
||||
while [[ "${input}" == " "* ]]; do
|
||||
input="${input## }"
|
||||
done
|
||||
|
||||
while [[ "${input}" == *" " ]]; do
|
||||
input="${input%% }"
|
||||
done
|
||||
|
||||
echo "${input}"
|
||||
}
|
||||
|
||||
# Get a temp working file so we don't pollute directories
|
||||
TEMP_FILE="$(mktemp)"
|
||||
|
||||
# Set the Contents directory to the env variable, script set, or to their .contents file in the user home
|
||||
CONTENTS_DIRECTORY="${CONTENTS_DIRECTORY:=\
|
||||
$(mkdir -p "${HOME}/.contents" && echo "${HOME}/.contents")}"
|
||||
$(mkdir -p "${HOME}/.contents" && echo "${HOME}/.contents")}"
|
||||
|
||||
EXIT_ON_ERROR=0
|
||||
|
||||
@ -29,342 +137,358 @@ WRITE_TEMPLATE_TO=""
|
||||
declare -A template_handlers
|
||||
|
||||
template_handlers=(
|
||||
["FILE"]="file_handler"
|
||||
["WRITE-TO"]="write_to_handler"
|
||||
["TEMPLATE"]="template_handler"
|
||||
["FILE"]="file_handler"
|
||||
["WRITE-TO"]="write_to_handler"
|
||||
["TEMPLATE"]="template_handler"
|
||||
["VAR"]="var_handler"
|
||||
["EVAL"]="eval_handler"
|
||||
)
|
||||
|
||||
write_content() {
|
||||
local content
|
||||
local leading_spaces
|
||||
content="${1}"
|
||||
leading_spaces="${2}"
|
||||
local content
|
||||
local leading_spaces
|
||||
content="${1}"
|
||||
leading_spaces="${2}"
|
||||
|
||||
local string_builder
|
||||
string_builder=""
|
||||
local string_builder
|
||||
string_builder=""
|
||||
|
||||
for ((i=1; i<=leading_spaces; i++)); do
|
||||
string_builder="${string_builder} "
|
||||
done
|
||||
string_builder="${string_builder}${content}"
|
||||
_write_to_buffer "${string_builder}"
|
||||
for ((i = 1; i <= leading_spaces; i++)); do
|
||||
string_builder="${string_builder} "
|
||||
done
|
||||
string_builder="${string_builder}${content}"
|
||||
_write_to_buffer "${string_builder}"
|
||||
}
|
||||
|
||||
_write_to_buffer() {
|
||||
log "debug" "Received content to write to buffer:
|
||||
${1}"
|
||||
printf "%s\n" "${1}" >> "${TEMP_FILE}"
|
||||
log "debug" "Finished writing content to buffer"
|
||||
log "debug" "Received content to write to buffer:
|
||||
${1}"
|
||||
printf "%s\n" "${1}" >>"${TEMP_FILE}"
|
||||
log "debug" "Finished writing content to buffer"
|
||||
}
|
||||
|
||||
var_handler() {
|
||||
local variable="${1}"
|
||||
local leading_spaces="${2}"
|
||||
while IFS="\n" read -r line; do
|
||||
write_content "${line}" "${leading_spaces}"
|
||||
done <<<"${variable}"
|
||||
}
|
||||
|
||||
eval_handler() {
|
||||
local eval_statement="${1}"
|
||||
local leading_spaces="${2}"
|
||||
while IFS="\n" read -r line; do
|
||||
write_content "${line}" "${leading_spaces}"
|
||||
done <<<"$(eval "${eval_statement}")"
|
||||
}
|
||||
|
||||
template_handler() {
|
||||
local template_file
|
||||
template_file="${1}"
|
||||
local template_file
|
||||
template_file="${1}"
|
||||
|
||||
local leading_spaces
|
||||
leading_spaces="${2}"
|
||||
# Check that the given file is not an absolute path
|
||||
if [[ ! "${template_file:0:1}" == "/" ]]; then
|
||||
template_file="${CONTENTS_DIRECTORY}/${template_file}"
|
||||
fi
|
||||
if [[ ! -f "${template_file}" ]]; then
|
||||
log "error" "The given template file \"${template_file}\" does not exist"
|
||||
return 1
|
||||
fi
|
||||
local leading_spaces
|
||||
leading_spaces="${2}"
|
||||
# Check that the given file is not an absolute path
|
||||
if [[ ! "${template_file:0:1}" == "/" ]]; then
|
||||
template_file="${CONTENTS_DIRECTORY}/${template_file}"
|
||||
fi
|
||||
if [[ ! -f "${template_file}" ]]; then
|
||||
log "error" "The given template file \"${template_file}\" does not exist"
|
||||
return 1
|
||||
fi
|
||||
|
||||
file_handler "${template_file}" "${leading_spaces}"
|
||||
REPEAT=0
|
||||
file_handler "${template_file}" "${leading_spaces}"
|
||||
REPEAT=0
|
||||
}
|
||||
|
||||
file_handler() {
|
||||
local file
|
||||
file="${1}"
|
||||
local file
|
||||
file="${1}"
|
||||
|
||||
local leading_spaces
|
||||
leading_spaces="${2}"
|
||||
local leading_spaces
|
||||
leading_spaces="${2}"
|
||||
|
||||
# Check that the given file is not an absolute path
|
||||
if [[ ! "${file:0:1}" == "/" ]] && [[ ! -f "${file}" ]]; then
|
||||
file="${CONTENTS_DIRECTORY}/${file}"
|
||||
fi
|
||||
# Check that the given file is not an absolute path
|
||||
if [[ ! "${file:0:1}" == "/" ]] && [[ ! -f "${file}" ]]; then
|
||||
file="${CONTENTS_DIRECTORY}/${file}"
|
||||
fi
|
||||
|
||||
if [[ ! -f "${file}" ]]; then
|
||||
log "error" "The given file \"${file}\" does not exist"
|
||||
return 1
|
||||
fi
|
||||
|
||||
if [[ ! -f "${file}" ]]; then
|
||||
log "error" "The given file \"${file}\" does not exist"
|
||||
return 1
|
||||
fi
|
||||
|
||||
while IFS="\n" read -r line; do
|
||||
write_content "${line}" "${leading_spaces}"
|
||||
done < "${file}"
|
||||
while IFS="\n" read -r line; do
|
||||
write_content "${line}" "${leading_spaces}"
|
||||
done <"${file}"
|
||||
}
|
||||
|
||||
|
||||
write_to_handler() {
|
||||
local write_path
|
||||
write_path=${1}
|
||||
local write_path
|
||||
write_path=${1}
|
||||
|
||||
log "debug" "Received write path \"${write_path}\""
|
||||
if [[ ! "${write_path:0:1}" == "/" ]]; then
|
||||
log "error" "Given write path was invalid, received \"${write_path}\", the path must be an absolute path"
|
||||
return 1
|
||||
fi
|
||||
log "debug" "Received write path \"${write_path}\""
|
||||
if [[ ! "${write_path:0:1}" == "/" ]]; then
|
||||
log "error" "Given write path was invalid, received \"${write_path}\", the path must be an absolute path"
|
||||
return 1
|
||||
fi
|
||||
|
||||
if [[ -d "${write_path}" ]]; then
|
||||
log "error" "Given write path was invalid, received \"${write_path}\", the path must be a path to an output file (doesn't have to exist), not a directory"
|
||||
return 1
|
||||
fi
|
||||
# This means that it was NOT manually set, 0 is true in shell
|
||||
if (("${WRITE_TEMPLATE_MANUALLY_SET}" == 1)); then
|
||||
WRITE_TEMPLATE_TO=${write_path}
|
||||
fi
|
||||
if [[ -d "${write_path}" ]]; then
|
||||
log "error" "Given write path was invalid, received \"${write_path}\", the path must be a path to an output file (doesn't have to exist), not a directory"
|
||||
return 1
|
||||
fi
|
||||
# This means that it was NOT manually set, 0 is true in shell
|
||||
if (("${WRITE_TEMPLATE_MANUALLY_SET}" == 1)); then
|
||||
WRITE_TEMPLATE_TO=${write_path}
|
||||
fi
|
||||
}
|
||||
|
||||
parse_template_extracted() {
|
||||
local tmpl_extracted
|
||||
tmpl_extracted="${1}"
|
||||
local tmpl_extracted
|
||||
tmpl_extracted="${1}"
|
||||
|
||||
local full_line
|
||||
full_line="${2}"
|
||||
local full_line
|
||||
full_line="${2}"
|
||||
|
||||
local num_leading_spaces
|
||||
num_leading_spaces=$(awk -F"[ ]" '{for(i=1;i<=NF && ($i=="");i++);print ""i-1""}' <<< "${full_line}")
|
||||
local num_leading_spaces
|
||||
num_leading_spaces=$(awk -F"[ ]" '{for(i=1;i<=NF && ($i=="");i++);print ""i-1""}' <<<"${full_line}")
|
||||
|
||||
# Basic checks to ensure template is correct, first not empty, second that an '=' was passed to give type specifier
|
||||
# third is to ensure only one equals sign is passed
|
||||
if [[ -z "${tmpl_extracted}" ]]; then
|
||||
log "error" "Template passed was empty... ignoring"
|
||||
return 1
|
||||
elif [[ ! "${tmpl_extracted}" = *"="* ]]; then
|
||||
log "error" "Template line passed was of an invalid format, missing = specifier, assumed type is missing as well"
|
||||
return 1
|
||||
elif [ "$(echo "${tmpl_extracted}" | grep -o "=" | wc -l)" -gt 1 ]; then
|
||||
log "error" "Template line passed had too many \"=\", there should only be 1"
|
||||
return 1
|
||||
fi
|
||||
# Basic checks to ensure template is correct, first not empty, second that an '=' was passed to give type specifier
|
||||
# third is to ensure only one equals sign is passed
|
||||
if [[ -z "${tmpl_extracted}" ]]; then
|
||||
log "error" "Template passed was empty... ignoring"
|
||||
return 1
|
||||
elif [[ ! "${tmpl_extracted}" = *"="* ]]; then
|
||||
log "error" "Template line passed was of an invalid format, missing = specifier, assumed type is missing as well"
|
||||
return 1
|
||||
elif [ "$(echo "${tmpl_extracted}" | grep -o "=" | wc -l)" -gt 1 ]; then
|
||||
log "error" "Template line passed had too many \"=\", there should only be 1"
|
||||
return 1
|
||||
fi
|
||||
|
||||
local var_type
|
||||
var_type="$(trim "$(echo "${tmpl_extracted}" | cut -d "=" -f1)")"
|
||||
local var_type
|
||||
var_type="$(trim "$(echo "${tmpl_extracted}" | cut -d "=" -f1)")"
|
||||
|
||||
# Shellcheck incorrectly reads the below line
|
||||
# shellcheck disable=SC2116
|
||||
var_type="$(echo "${var_type^^}")"
|
||||
# Shellcheck incorrectly reads the below line
|
||||
# shellcheck disable=SC2116
|
||||
var_type="$(echo "${var_type^^}")"
|
||||
|
||||
local var_arg
|
||||
var_arg="$(trim "$(echo "${tmpl_extracted}" | cut -d "=" -f2)")"
|
||||
local var_arg
|
||||
var_arg="$(trim "$(echo "${tmpl_extracted}" | cut -d "=" -f2)")"
|
||||
|
||||
local handler_to_use
|
||||
handler_to_use="${template_handlers[${var_type}]}"
|
||||
local handler_to_use
|
||||
handler_to_use="${template_handlers[${var_type}]}"
|
||||
|
||||
if [[ -z "${handler_to_use}" ]]; then
|
||||
log "error" "Invalid handler found, no such handler \"${var_type}\" exists as a handler"
|
||||
return 1
|
||||
else
|
||||
log "debug" "Using handler \"${handler_to_use}\""
|
||||
if ! eval "${handler_to_use}" "${var_arg}" "${num_leading_spaces}"; then
|
||||
log "error" "Arguments passed for \"${var_type}\" were invalid, check the argument"
|
||||
return 1
|
||||
fi
|
||||
log "debug" "Finished using handler \"${handler_to_use}\""
|
||||
fi
|
||||
if [[ -z "${handler_to_use}" ]]; then
|
||||
log "error" "Invalid handler found, no such handler \"${var_type}\" exists as a handler"
|
||||
return 1
|
||||
else
|
||||
log "debug" "Using handler \"${handler_to_use}\""
|
||||
if ! eval "${handler_to_use}" "${var_arg}" "${num_leading_spaces}"; then
|
||||
log "error" "Arguments passed for \"${var_type}\" were invalid, check the argument"
|
||||
return 1
|
||||
fi
|
||||
log "debug" "Finished using handler \"${handler_to_use}\""
|
||||
fi
|
||||
}
|
||||
|
||||
output_finished_template() {
|
||||
log "debug" "Outputting finished template"
|
||||
mkdir -p "$(dirname "${WRITE_TEMPLATE_TO}")"
|
||||
# We want globbing here
|
||||
# shellcheck disable=SC2086
|
||||
if [[ -z "${WRITE_TEMPLATE_TO}" ]]; then
|
||||
log "error" "Was never given a path to write the template to, check your template file or explicitly specify an output location"
|
||||
exit 1
|
||||
else
|
||||
mv "${TEMP_FILE}" ${WRITE_TEMPLATE_TO}
|
||||
fi
|
||||
log "debug" "Outputting finished template"
|
||||
mkdir -p "$(dirname "${WRITE_TEMPLATE_TO}")"
|
||||
# We want globbing here
|
||||
# shellcheck disable=SC2086
|
||||
if [[ -z "${WRITE_TEMPLATE_TO}" ]]; then
|
||||
log "error" "Was never given a path to write the template to, check your template file or explicitly specify an output location"
|
||||
exit 1
|
||||
else
|
||||
mv "${TEMP_FILE}" ${WRITE_TEMPLATE_TO}
|
||||
fi
|
||||
}
|
||||
|
||||
parse_template_line() {
|
||||
local line
|
||||
line="${1}"
|
||||
local line
|
||||
line="${1}"
|
||||
|
||||
local tmpl_extracted
|
||||
if [[ "${line}" = *\{#%*%#\}* ]]; then
|
||||
tmpl_extracted="${line#*\{#%}"
|
||||
tmpl_extracted="${tmpl_extracted%\%#\}*}"
|
||||
tmpl_extracted="$(trim "${tmpl_extracted}")"
|
||||
local tmpl_extracted
|
||||
if [[ "${line}" = *\{#%*%#\}* ]]; then
|
||||
tmpl_extracted="${line#*\{#%}"
|
||||
tmpl_extracted="${tmpl_extracted%\%#\}*}"
|
||||
tmpl_extracted="$(trim "${tmpl_extracted}")"
|
||||
|
||||
log "debug" "Extracted a template: ${tmpl_extracted}"
|
||||
# Check for non zero status codes and parse the extracted template
|
||||
if ! parse_template_extracted "${tmpl_extracted}" "${line}"; then
|
||||
return 1
|
||||
fi
|
||||
log "debug" "Finished extracting template: ${tmpl_extracted}"
|
||||
else
|
||||
write_content "${line}" "0"
|
||||
fi
|
||||
log "debug" "Extracted a template: ${tmpl_extracted}"
|
||||
# Check for non zero status codes and parse the extracted template
|
||||
if ! parse_template_extracted "${tmpl_extracted}" "${line}"; then
|
||||
return 1
|
||||
fi
|
||||
log "debug" "Finished extracting template: ${tmpl_extracted}"
|
||||
else
|
||||
write_content "${line}" "0"
|
||||
fi
|
||||
}
|
||||
|
||||
read_template() {
|
||||
local read_file
|
||||
local line
|
||||
local line_num
|
||||
line_num=1
|
||||
read_file="${1}"
|
||||
log "info" "Parsing template file \"${read_file}\""
|
||||
while IFS="\n" read -r line; do
|
||||
# Check for non zero status code
|
||||
if ! parse_template_line "${line}"; then
|
||||
log "error" "Invalid template passed from \"${read_file}\", check line ${line_num}"
|
||||
if (( "${EXIT_ON_ERROR}" == 0 )); then
|
||||
exit 1
|
||||
fi
|
||||
fi
|
||||
line_num=$((line_num + 1))
|
||||
done <"${read_file}"
|
||||
local read_file
|
||||
local line
|
||||
local line_num
|
||||
line_num=1
|
||||
read_file="${1}"
|
||||
log "info" "Parsing template file \"${read_file}\""
|
||||
while IFS="\n" read -r line; do
|
||||
# Check for non zero status code
|
||||
if ! parse_template_line "${line}"; then
|
||||
log "error" "Invalid template passed from \"${read_file}\", check line ${line_num}"
|
||||
if (("${EXIT_ON_ERROR}" == 0)); then
|
||||
exit 1
|
||||
fi
|
||||
fi
|
||||
line_num=$((line_num + 1))
|
||||
done <"${read_file}"
|
||||
}
|
||||
|
||||
templater() {
|
||||
local read_file
|
||||
read_file="${1}"
|
||||
[[ ! -f "${read_file}" ]] &&
|
||||
log "error" "$(important "${read_file}") does not exist!" &&
|
||||
return 1
|
||||
local read_file
|
||||
read_file="${1}"
|
||||
[[ ! -f "${read_file}" ]] &&
|
||||
log "error" "$(important "${read_file}") does not exist!" &&
|
||||
return 1
|
||||
|
||||
read_template "${read_file}"
|
||||
read_template "${read_file}"
|
||||
|
||||
if (( "${REPEAT}" == 0 )); then
|
||||
REPEAT=1
|
||||
log "debug" "Repeat set to 0, repeating on the finished file located at ${TEMP_FILE}"
|
||||
mv "${TEMP_FILE}" "${TEMP_FILE}-repeat"
|
||||
main "-t" "${TEMP_FILE}-repeat"
|
||||
else
|
||||
log "info" "Finished parsing template file \"${read_file}\""
|
||||
log "info" "Writing finished template..."
|
||||
output_finished_template
|
||||
log "info" "Finished writing template for \"${read_file}\" to \"${WRITE_TEMPLATE_TO}\""
|
||||
fi
|
||||
if (("${REPEAT}" == 0)); then
|
||||
REPEAT=1
|
||||
log "debug" "Repeat set to 0, repeating on the finished file located at ${TEMP_FILE}"
|
||||
mv "${TEMP_FILE}" "${TEMP_FILE}-repeat"
|
||||
main "-t" "${TEMP_FILE}-repeat"
|
||||
else
|
||||
log "info" "Finished parsing template file \"${read_file}\""
|
||||
log "info" "Writing finished template..."
|
||||
output_finished_template
|
||||
log "info" "Finished writing template for \"${read_file}\" to \"${WRITE_TEMPLATE_TO}\""
|
||||
fi
|
||||
}
|
||||
|
||||
arg_required() {
|
||||
echo_rgb "${1}" 255 183 0
|
||||
echo_rgb "${1}" 255 183 0
|
||||
}
|
||||
|
||||
arg_optional(){
|
||||
echo_rgb "${1}" 117 255 255
|
||||
arg_optional() {
|
||||
echo_rgb "${1}" 117 255 255
|
||||
}
|
||||
|
||||
arg_description(){
|
||||
echo_rgb "${@}" 220 190 255
|
||||
arg_description() {
|
||||
echo_rgb "${@}" 220 190 255
|
||||
}
|
||||
|
||||
usage() {
|
||||
# Print out usage instructions for the local script
|
||||
#
|
||||
# Arguments:
|
||||
# None
|
||||
#
|
||||
# Usage:
|
||||
# usage
|
||||
#
|
||||
# POSIX Compliant:
|
||||
# Yes
|
||||
#
|
||||
printf "Usage: %s\n" \
|
||||
"$(basename ${0}) [OPTIONS]
|
||||
$(arg_required "REQUIRED")
|
||||
$(arg_optional "OPTIONAL")
|
||||
# Print out usage instructions for the local script
|
||||
#
|
||||
# Arguments:
|
||||
# None
|
||||
#
|
||||
# Usage:
|
||||
# usage
|
||||
#
|
||||
# POSIX Compliant:
|
||||
# Yes
|
||||
#
|
||||
printf "Usage: %s\n" \
|
||||
"$(basename ${0}) [OPTIONS]
|
||||
$(arg_required "REQUIRED")
|
||||
$(arg_optional "OPTIONAL")
|
||||
|
||||
$(arg_required "--template-file") <templateFile: string> | $(arg_required "-t") <templateFile: string>
|
||||
$(arg_description "A template file to parse and apply rules for
|
||||
$(arg_required "--template-file") <templateFile: string> | $(arg_required "-t") <templateFile: string>
|
||||
$(arg_description "A template file to parse and apply rules for
|
||||
|
||||
Example:
|
||||
--template-file example.tmpl")
|
||||
Example:
|
||||
--template-file example.tmpl")
|
||||
|
||||
$(arg_optional "--contents-dir") <contentsDirectory: string> | $(arg_optional "-c") <contentsDirectory: string>
|
||||
$(arg_description "The files that contain contents read by the templates.
|
||||
$(arg_optional "--contents-dir") <contentsDirectory: string> | $(arg_optional "-c") <contentsDirectory: string>
|
||||
$(arg_description "The files that contain contents read by the templates.
|
||||
|
||||
By default this is set to ~/.contents/ if unset, to set via variable you can either use this argument or pass
|
||||
export CONTENTS_DIRECTORY=\`your contents directory\`
|
||||
By default this is set to ~/.contents/ if unset, to set via variable you can either use this argument or pass
|
||||
export CONTENTS_DIRECTORY=\`your contents directory\`
|
||||
|
||||
Example:
|
||||
--contents-dir ~/Desktop/contents")
|
||||
Example:
|
||||
--contents-dir ~/Desktop/contents")
|
||||
|
||||
$(arg_optional "--output-to") <outputFile: string> | $(arg_optional "-o") <outputFile: string>
|
||||
$(arg_description "The file to output the applied template to, this can be set within a template, but can be overriden with this option
|
||||
$(arg_optional "--output-to") <outputFile: string> | $(arg_optional "-o") <outputFile: string>
|
||||
$(arg_description "The file to output the applied template to, this can be set within a template, but can be overriden with this option
|
||||
|
||||
Example:
|
||||
--output-to myfile.out")
|
||||
Example:
|
||||
--output-to myfile.out")
|
||||
|
||||
$(arg_optional "--no-exit") | $(arg_optional "-n")
|
||||
$(arg_description "Do not exit on any errors, continue executing
|
||||
$(arg_optional "--no-exit") | $(arg_optional "-n")
|
||||
$(arg_description "Do not exit on any errors, continue executing
|
||||
|
||||
Example:
|
||||
--no-exit")"
|
||||
Example:
|
||||
--no-exit")"
|
||||
|
||||
}
|
||||
|
||||
main() {
|
||||
# Parse input arguments
|
||||
#
|
||||
# Arguments:
|
||||
# Consult the `usage` function
|
||||
#
|
||||
# Usage:
|
||||
# parse_args "$@"
|
||||
# - All arguments should be ingested by parse_args first for variable setting
|
||||
#
|
||||
# POSIX Compliant:
|
||||
# Yes
|
||||
#
|
||||
local template_file
|
||||
# Parse input arguments
|
||||
#
|
||||
# Arguments:
|
||||
# Consult the `usage` function
|
||||
#
|
||||
# Usage:
|
||||
# parse_args "$@"
|
||||
# - All arguments should be ingested by parse_args first for variable setting
|
||||
#
|
||||
# POSIX Compliant:
|
||||
# Yes
|
||||
#
|
||||
local template_file
|
||||
|
||||
while :; do
|
||||
case ${1} in
|
||||
-h | -\? | --help)
|
||||
usage # Display a usage synopsis.
|
||||
exit
|
||||
;;
|
||||
--) # End of all options.
|
||||
break
|
||||
;;
|
||||
-t | --template-file)
|
||||
shift
|
||||
template_file="${1}"
|
||||
[[ ! -f "${template_file}" ]] &&
|
||||
log "error" "The given template file \"${template_file}\" does not exist" &&
|
||||
exit 1
|
||||
log "info" "Set template file to \"${template_file}\""
|
||||
;;
|
||||
-c | --contents-dir)
|
||||
shift
|
||||
CONTENTS_DIRECTORY="${1}"
|
||||
[[ ! -d "${CONTENTS_DIRECTORY}" ]] &&
|
||||
log "error" "\"${CONTENTS_DIRECTORY}\" is an invalid path, contents directory must be an absolute path" &&
|
||||
exit 1
|
||||
log "info" "Set contents directory to \"${CONTENTS_DIRECTORY}\""
|
||||
;;
|
||||
-o | --output-to)
|
||||
shift
|
||||
WRITE_TEMPLATE_MANUALLY_SET=0
|
||||
WRITE_TEMPLATE_TO="${1}"
|
||||
;;
|
||||
-n | --no-exit)
|
||||
EXIT_ON_ERROR=1
|
||||
log "info" "No longer exiting on errors."
|
||||
;;
|
||||
-?*)
|
||||
printf 'Unknown option: %s\n' "$1" >&2
|
||||
usage
|
||||
exit 1
|
||||
;;
|
||||
*) # Default case: No more options, so break out of the loop.
|
||||
break ;;
|
||||
esac
|
||||
shift
|
||||
done
|
||||
[[ -z "${template_file}" ]] &&
|
||||
log "error" "No template file provided, exiting" &&
|
||||
exit 1
|
||||
templater "${template_file}"
|
||||
while :; do
|
||||
case ${1} in
|
||||
-h | -\? | --help)
|
||||
usage # Display a usage synopsis.
|
||||
exit
|
||||
;;
|
||||
--) # End of all options.
|
||||
break
|
||||
;;
|
||||
-t | --template-file)
|
||||
shift
|
||||
template_file="${1}"
|
||||
[[ ! -f "${template_file}" ]] &&
|
||||
log "error" "The given template file \"${template_file}\" does not exist" &&
|
||||
exit 1
|
||||
log "info" "Set template file to \"${template_file}\""
|
||||
;;
|
||||
-c | --contents-dir)
|
||||
shift
|
||||
CONTENTS_DIRECTORY="${1}"
|
||||
[[ ! -d "${CONTENTS_DIRECTORY}" ]] &&
|
||||
log "error" "\"${CONTENTS_DIRECTORY}\" is an invalid path, contents directory must be an absolute path" &&
|
||||
exit 1
|
||||
log "info" "Set contents directory to \"${CONTENTS_DIRECTORY}\""
|
||||
;;
|
||||
-o | --output-to)
|
||||
shift
|
||||
WRITE_TEMPLATE_MANUALLY_SET=0
|
||||
WRITE_TEMPLATE_TO="${1}"
|
||||
;;
|
||||
-n | --no-exit)
|
||||
EXIT_ON_ERROR=1
|
||||
log "info" "No longer exiting on errors."
|
||||
;;
|
||||
-?*)
|
||||
printf 'Unknown option: %s\n' "$1" >&2
|
||||
usage
|
||||
exit 1
|
||||
;;
|
||||
*) # Default case: No more options, so break out of the loop.
|
||||
break ;;
|
||||
esac
|
||||
shift
|
||||
done
|
||||
[[ -z "${template_file}" ]] &&
|
||||
log "error" "No template file provided, exiting" &&
|
||||
exit 1
|
||||
templater "${template_file}"
|
||||
}
|
||||
|
||||
main "$@"
|
||||
|
||||
@ -21,3 +21,28 @@ For example
|
||||
For example, say we have a primary template `main.tmpl` that uses the sub-template `sub.tmpl` then
|
||||
when the parsing process begins it will also parse the contents of `sub.tmpl` and append them to the contents
|
||||
parsed by `main.tmpl`
|
||||
- VAR
|
||||
- This is used when you want to expand a variable from your environment, say "${HOME}"
|
||||
- EVAL
|
||||
- This is used when you want to evaluate a statement in bash, be careful as any errors here can really nuke things and
|
||||
cause security issues.
|
||||
|
||||
|
||||
## Example
|
||||
|
||||
Given a template file with content like so:
|
||||
|
||||
```
|
||||
{#% VAR=$HOME %#}
|
||||
{#% EVAL="ls -alh" %#}
|
||||
```
|
||||
|
||||
The output would be something like
|
||||
```
|
||||
/home/username
|
||||
total 52K
|
||||
drwxr-xr-x 1 sam sam 196 Sep 15 17:03 .
|
||||
drwxr-xr-x 1 sam sam 94 Sep 15 16:42 ..
|
||||
-rwxr-xr-x 1 sam sam 13K Sep 15 17:01 Templater.bash
|
||||
-rw-r--r-- 1 sam sam 1.1K Sep 15 17:03 Templater.md
|
||||
```
|
||||
|
||||
Loading…
Reference in New Issue
Block a user