1
1
Fork 0
mirror of https://github.com/tonydamage/nux-env.git synced 2025-12-11 13:24:28 +01:00
nux-env/bin/nux-runner
Tony Tkacik 89010fd209 Improved help system.
Signed-off-by: Tony Tkacik <tonydamage@gmail.com>
2017-06-20 15:55:07 +02:00

124 lines
2.9 KiB
Bash
Executable file

#!/bin/bash
###
### *nux-runner* is wrapped bash interpreter for *nux-env* enhanced bash scripts
### and provides out of the box support for command-style scripts (similar in
### usage such as apt, git) with following features out of the box:
###
### task selection::
### Automaticly selects correct tasks, displays help if
### task does not exists.
### logging::
### Using *nux.log* function and changing output using
### *debug*, *trace* prefixes
### help display::
### Automated help display when no arguments are provided.
### Uses source comments as source for help.
###
###
### # Writing nux-runner scripts
###
### *nux-runner* scripts are basicly bash scripts with some additional conventions.
###
###
###
###
###
### 1. Shebang::
### Shebang (*#!*) at the start of file is *#!/usr/bin/env nux-runner*
### 2. Tasks::
### Script usually does only defines functions in form task.{taskname}
### where taskname
### ## Defining a task
###
###
###
###
readonly NUX_RUNNER_BIN_DIR=$(dirname $(realpath ${BASH_SOURCE[0]}))
source $NUX_RUNNER_BIN_DIR/../inc/nux-base.inc.sh
readonly NUX_RUNNER=$NUX_RUNNER_BIN_DIR/nux-runner;
nux.include nux-runner
##
## Additional commands provided by *nux-runner*:
### *nux-runner* automaticly provides following tasks to any script it executes:
##
## debug:: <task> [<task arguments>]
## Runs specified task with debug messages enabled.
task.debug() {
nux.log.level debug
nuxr.run "$@"
}
## trace:: <task> [<task arguments>]
## Runs specified task with debug & trace enabled.
task.trace() {
nux.log.level trace
nuxr.run "$@"
}
## help:: [command]
## Display help for command or topic if specified. Otherwise displays
## documentation.
task.help() {
nuxr.task.help "$@"
}
## config:: [type] name [value]
## Reads or writes application specific configuration option.
###
### There are 3 *types* of configuration:
### dist::
### Distribution provided configuration. Read-only configuration.
### global::
### Global (user-specific) provided configuration. This configuration is
### usually stored in *~/.config/{app-name}/config.yml*
### local::
### Local configuration.
###
### The resulting application configuration is merger of these three (if available)
### with following preference (most-specific one):
### local, global, dist
###
task.config() {
nux.notimplemented task.config
}
task.() {
task.help
}
###
###
if [ "$NUX_RUNNER" = "$(realpath "$0")" ]
then
readonly NUX_SCRIPT=$1;
shift;
else
readonly NUX_SCRIPT=$0;
readonly NUX_NO_INCLUDE="no include";
fi
if [ -n "$NUX_SCRIPT" ]; then
# Determines script
readonly NUX_SCRIPTNAME=$(basename $NUX_SCRIPT)
readonly NUX_APPNAME=$(basename $NUX_SCRIPT)
nuxr.run "$@"
else
echo Usage: nux-runner [script] [task] [options]
echo
grep "^\#\#" "$NUX_RUNNER" | sed -re "s/^#+ ?(.*)/\1/gi" | nux.help.shelldoc
echo
fi