A bash plugin to manage plugins

README.md

bash-bashplug

A bash plugin to manage plugins

Installation

Set up bash_plugins folder

(Skip this step if you already have a bash_plugins folder.)

{
# simply copy-pasta this whole block, or customize these vars and copy-pasta the rest
bash_plugins_dir=~/.bash_plugins
bash_startup_file=~/.bash_profile

if ! [[ -d $bash_plugins_dir ]]; then
  mkdir $bash_plugins_dir
fi
if ! grep -q '\*\.plugin\.sh' $bash_startup_file; then
  cat >> $bash_startup_file <<BASH

export BASH_PLUGINS_DIR="$bash_plugins_dir"
for plugin in \$(find \$BASH_PLUGINS_DIR -name '*.plugin.sh'); do source \$plugin; done
BASH
  export BASH_PLUGINS_DIR="$bash_plugins_dir"
fi
}

Set up this plugin

{
# simply copy-pasta this whole block
plugin_url=https://gist.github.com/15a67d9f5d34f002162de2a73b543bb8

if bashplug -vq >/dev/null 2>&1; then
  bashplug add "$plugin_url"
elif [[ -n "$BASH_PLUGINS_DIR" ]]; then
  (
    set -e
    cd "$BASH_PLUGINS_DIR"
    git clone $plugin_url
    dir_name="$(ls -rtd1 $(find * -maxdepth 0 -type d) | tail -n1)"
    plugin_name="$(basename $(find $dir_name -name '*.plugin.sh') .plugin.sh)"
    if ! [[ "$dir_name" == "$plugin_name" ]] && ! [[ -d "$plugin_name" ]]; then
      mv "$dir_name" "$plugin_name"
      dir_name="$plugin_name"
    fi
    for plugin in $(find $dir_name -name '*.plugin.sh'); do source $plugin; done
  )
else
  cat<<EOF

Could not find your BASH_PLUGINS_DIR. Did not install plugin.
Have you followed the *Set up bash_plugins folder* steps yet?

EOF
fi
}

bash-bashplug.plugin.sh

function init_via_source(){
  local script_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
  local script=$(basename ${BASH_SOURCE[0]} | sed 's/\.plugin//')
  source $script_dir/$script
}

function init_via_wrapper(){
  local script_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
  local script=$(basename $BASH_SOURCE | sed 's/\.plugin//')
  local wrapper=$(basename $script .sh | sed 's/^bash-//')
  alias $wrapper="$script_dir/$script"
}

init_via_wrapper

# vim: set ts=2 sts=2 sw=2 et:

bash-bashplug.sh

#!/bin/bash -eu

namespace=_bashplug_

function _bashplug_usage(){
  cat <<USAGE

$(basename $0) usage

Call with one of the functions:
$(${namespace}function_list)
USAGE
}

function _bashplug_add(){
  plugin_url="$1"
  if [[ -z "$plugin_url" ]]; then
    cat<<ERROR

You must provide a url or path to the [plugin] repo you want to clone.

ERROR
    return 1
  fi
  if [[ -n "$BASH_PLUGINS_DIR" ]]; then
    (
      set -e
      cd "$BASH_PLUGINS_DIR"
      git clone $plugin_url
      dir_name="$(ls -rtd1 $(find * -maxdepth 0 -type d) | tail -n1)"
      entrypoint="$(find $dir_name -name '*.plugin.sh')"
      if [[ -z $entrypoint ]]; then
        cat <<ERROR

This plugin does not seem to have an entrypoint.
Looking for a file that matches the pattern *.plugin.sh

ERROR
        exit
      fi
      plugin_name="$(basename $entrypoint .plugin.sh)"
      if ! [[ "$dir_name" == "$plugin_name" ]] && ! [[ -d "$plugin_name" ]]; then
        mv "$dir_name" "$plugin_name"
        dir_name="$plugin_name"
      fi
      for plugin in $(find $dir_name -name '*.plugin.sh'); do source $plugin; done
    )
  else
    cat<<ERROR

Could not find your BASH_PLUGINS_DIR. Did not install plugin.
Have you followed the *Set up bash_plugins folder* steps yet?

ERROR
  fi
}

function _bashplug_function_list(){
  declare -F | awk '$NF ~ /'$namespace'/ {sub("'$namespace'", ""); print $NF}'
}

function main(){
  func="${1:-}"
  shift || true
  if declare -f ${namespace}${func}>/dev/null; then
    ${namespace}${func} "$@"
  else
    ${namespace}usage
  fi
}

main "$@"

# vim: set ts=2 sts=2 sw=2 et: