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An sbt plugin to post project release notes to Posterous

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README.markdown

posterous-sbt plugin

posterous-sbt is a plugin for simple-build-tool that automates publishing release notes to any Posterous site, but especially implicit.ly. It transforms notes from Markdown to HTML using Knockoff, and posts them using Dispatch.

sbt 0.11.x

As a global dependency

If you install posterous-sbt globally, you can use it with any project without having to make any changes to that project's definition.

~/.sbt/plugins/build.sbt

addSbtPlugin("net.databinder" % "posterous-sbt" % "0.3.2")

User settings

You also need to apply the plugin settings and set your Posterous email and password. You need to get an api key at http://posterous.com/api. You can do this in one place for all your projects:

~/.sbt/user.sbt

seq(posterousSettings :_*)

(email in Posterous) := Some("you@example.com")

(password in Posterous) := Some("yourpassword")

(apiKey in Posterous) := "your api key you get from http://posterous.com/api"

Project-specific settings

If you wish to customize any settings for your project and commit those into source control, you must add posterous-sbt as a project plugin; otherwise, anyone who checks out the project and doesn't have the plugin globally will be unable to build.

To add posterous-sbt as a project dependency, use the same addSbtPlugin as shown for the global configuration, but place it in project/plugins/build.sbt under your project directory. Then, you can safely reference posterous settings inside your project's build definition. e.g., to change the published project name:

(name in Posterous) := "A Friendlier Name"

sbt 0.7

To use this plugin with an sbt 0.7.x project, declare it as a dependency in a file under project/plugins. e.g. project/plugins/Plugins.scala with:

import sbt._

class Plugins(info: ProjectInfo) extends PluginDefinition(info) {
  val posterous = "net.databinder" % "posterous-sbt" % "0.1.7"
}

And then it mix the trait into a project definition:

class MyProject(info: ProjectInfo) extends PluginProject(info) with posterous.Publish ...

For this older version of the plugin, your Posterous credentials are set in a java properties file ~/.posterous :

email=me@example.com
password=mypassword

Notes Specification

Release notes for your project are expected under a notes/ directory in the root of the project that mixes in the posterous.Publish trait. In this directory, notes for a particular version are named <version>.markdown while an optional short description about the project can be placed in about.markdown. For example, in posterous-sbt you'll find the following:

posterous-sbt/
  notes/
    0.1.0.markdown
    0.1.1.markdown
    about.markdown

When publishing and previewing, the description from about.markdown is appended to the selected version's release notes as boilerplate.

If you're publishing to the Scala software announcement site implicit.ly, please keep in mind that the post's title will be the name of your project and its corresponding version: these should not be repeated as a heading in the notes. It is best to lead with copy describing the big changes in your release, or jump right into a list of those changes. For major releases with changes divided into sections, use an h3 (a line prefixed by ### in Markdown) or smaller heading. The short description about.markdown should be one or two sentences long, with a link to more information about your project.

To preview the transformed release notes, run the posterous:preview (preview-notes in sbt 0.7) action in sbt. This looks for the current version with any "-SNAPSHOT" suffix removed; The notes should open in your default browser.

Publication Target Site

This plugin comes preconfigured to publish to implicit.ly. To be added as a contributor to implicit.ly, send n8han a message on github containing your email address and a link to your Scala project if it isn't on github. If you'd like to publish to a different Posterous site, just override the posterous:siteId setting.

You'll need to create a login on Posterous if you haven't done that yet. See above, under sbt 0.11.x or 0.7, for instructions.

Once you've identified yourself, you can check your setup with the posterous:check action (check-posterous in sbt 0.7). This will fetch your list of authorized sites from Posterous and confirm that the project's current siteId is one of those.

Publishing Release Notes

Once you've previewed your source notes and checked your publishing authorization, you're ready to post to the web. Like the posterous:preview action, posterous:publish (publish-notes in sbt 0.7) uses the current non-snapshot version.

If the release notes publication is successful, the shortened published URL is displayed and will open in the default broswer.

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