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README.markdown

epm IS

  • an Erlang package manager meant to have minimal impact on projects
  • a simple and easy dependency tracker

epm IS NOT

  • a packaging and deployment tool
  • meant to handle non-Erlang dependencies

Install

curl "https://github.com/JacobVorreuter/epm/raw/master/epm" > epm
chmod +x epm
sudo mv epm /usr/local/bin/

epm config --set build_dir "/tmp"
epm config --set install_dir "/Users/jvorreuter/erl_libs"
epm config --set proxy_host http://my.corporate.proxy
epm config --set proxy_port 80
epm config --set net_timeout 60000 # for a slow network...

Read the blog post

http://www.jkvor.com/erlang-package-manager

Usage

install [<user>/]<project> {project options}, ... {global options}
    project options:
         --tag <tag>
         --branch <branch>
         --sha <sha>
         --with-deps (default)
         --without-deps
         --prebuild-command <cmd>
         --build-command <cmd>
         --test-command <cmd>
    global options:
         --verbose
         --config-set <key> <value>

remove [<user>/]<project> {project options}, ... {global options}
    project options:
         --tag <tag>
         --branch <branch>
         --sha <sha>
    global options:
         --verbose

         --config-set <key> <value>

update [<user>/]<project> {project options}, ... {global options}
    project options:
         --tag <tag>
         --branch <branch>
         --sha <sha>
         --with-deps
         --without-deps (default)
    global options:
         --verbose

         --config-set <key> <value>

info [<user>/]<project>, ... {global options}
    global options:
         --config-set <key> <value>

search <project>, ... {global options}
    global options:
         --config-set <key> <value>

list

latest

config {options}
    options:
         --get (default)
         --set <key> <value>
         --remove <key>

Do it

tell epm where to install packages

jvorreuter$ epm config --set install_dir /Users/jvorreuter/dev
epm v0.1.1, 2010

+ updated .epm config

search for an Erlang app

jvorreuter$ ./epm search excavator
epm v0.1.1, 2010

===============================
AVAILABLE
===============================
  name: excavator
  owner: JacobVorreuter
  followers: 7
  homepage: 
  description: An Erlang application for ingesting data from various sources (APIs, data feeds, web content, etc)
  tags:
    "0.3"
  branches:
    master
    scheduler

install that app that you wanted (its dependencies will be installed too)

jvorreuter$ ./epm install excavator
epm v0.1.1, 2010

===============================
Install the following packages?
===============================
    + clones-mochiweb-master
    + JacobVorreuter-mochiweb_server_behavior-master
    + epm-etap-master
    + JacobVorreuter-dynamic_compile-master
    + JacobVorreuter-mochixpath-master
    + JacobVorreuter-excavator-master

([y]/n) y

+ downloading http://github.com/clones/mochiweb/tarball/master
+ running mochiweb build command
+ running mochiweb install command
+ downloading http://github.com/JacobVorreuter/mochiweb_server_behavior/tarball/master
+ running mochiweb_server_behavior build command
+ running mochiweb_server_behavior install command
+ downloading http://github.com/epm/etap/tarball/master
+ running etap build command
+ running etap install command
+ downloading http://github.com/JacobVorreuter/dynamic_compile/tarball/master
+ running dynamic_compile build command
+ running dynamic_compile install command
+ downloading http://github.com/JacobVorreuter/mochixpath/tarball/master
+ running mochixpath build command
+ running mochixpath install command
+ downloading http://github.com/JacobVorreuter/excavator/tarball/master
+ running excavator build command
+ running excavator install command

get some info about that app you just installed

jvorreuter$ ./epm info excavator
epm v0.1.1, 2010

===============================
INSTALLED
===============================
  name: excavator
  owner: JacobVorreuter
  vsn: master
  install dir: /Users/jvorreuter/dev/excavator-0.3
  homepage: 
  description: An Erlang application for ingesting data from various sources (APIs, data feeds, web content, etc)
  dependencies: 
    clones/mochiweb/master
    mochixpath/master
    dynamic_compile/master
    epm/etap/master
    mochiweb_server_behavior/master

how 'bout a list of all apps I've installed?

jvorreuter$ ./epm list
epm v0.1.1, 2010

===============================
INSTALLED
===============================
  name: excavator
  owner: JacobVorreuter
  vsn: master
  install dir: /Users/jvorreuter/dev/excavator-0.3
  homepage: 
  description: An Erlang application for ingesting data from various sources (APIs, data feeds, web content, etc)
  dependencies: 
    clones/mochiweb/master
    mochixpath/master
    dynamic_compile/master
    epm/etap/master
    mochiweb_server_behavior/master

  name: mochixpath
  owner: JacobVorreuter
  vsn: master
  install dir: /Users/jvorreuter/dev/mochixpath-0.1
  homepage: http://yummymeatwhiz.com
  description: Mochiweb html parser xpath extension

  name: dynamic_compile
  owner: JacobVorreuter
  vsn: master
  install dir: /Users/jvorreuter/dev/dynamic_compile-0.1
  homepage: 
  description: compile and load erlang modules from string input

  name: mochiweb_server_behavior
  owner: JacobVorreuter
  vsn: master
  install dir: /Users/jvorreuter/dev/mochiweb_server_behavior-0.1
  homepage: 
  description: Erlang behavior for a simple mochiweb web server
  dependencies: 
    clones/mochiweb/master

  name: etap
  owner: epm
  vsn: master
  install dir: /Users/jvorreuter/dev/etap-0.3.4
  homepage: 
  description: etap is a simple erlang testing library that provides TAP compliant output.

  name: mochiweb
  owner: clones
  vsn: master
  install dir: /Users/jvorreuter/dev/mochiweb-0.01
  homepage: http://code.google.com/p/mochiweb/
  description: mochiweb clone

what have I done? I must remove that terrible app. Its dependencies can stay though

jvorreuter$ ./epm remove excavator
epm v0.1.1, 2010

===============================
Remove the following packages?
===============================
    + JacobVorreuter-excavator-master

([y]/n) y

+ removing package JacobVorreuter-excavator-master from /Users/jvorreuter/dev/excavator-0.3
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