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sbt-s3 is a simple sbt plugin to manipulate objects on Amazon S3

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sbt-s3

Description

sbt-s3 is a simple sbt plugin that can manipulate objects on Amazon S3.

This is a fork of https://github.com/sbt/sbt-s3. This version allows specifying the S3 endpoint (read region) and bucket to be specified explicitly instead of co-opting '''host''' - which didn't work for non-US standard regions.

Also tries to avoid downloading stuff when a local version already exists. Currently aborted the use of ETags to detect similarity in favour of content length since some of my files are multi-part uploaded and the ETags seem to have different semantics for such files. Will consider adding that in later.

Usage

  • add to your project/plugin.sbt the line: addSbtPlugin("lakshmanan.ca.sbt" % "sbt-s3" % "0.8")
  • then add to your build.sbt the line: s3Settings

You will then be able to use the tasks s3-upload, s3-download, and s3-delete, defined in the nested object com.typesafe.sbt.S3Plugin.S3 as upload, download, and delete, respectively. All these operations will use HTTPS as a transport protocol.

Please check the Scaladoc API of the S3Plugin object, and of its nested S3 object, to get additional documentation of the available sbt tasks.

Example

Here is a complete example:

project/plugin.sbt:

addSbtPlugin("lakshmanan.ca.sbt" % "sbt-s3" % "0.8")

build.sbt:

import S3._

s3Settings

mappings in upload := Seq((new java.io.File("a"),"zipa.txt"),(new java.io.File("b"),"pongo/zipb.jar"))

endpoint in upload := "s3-us-west-2.amazonaws.com"

bucket in upload := "blah-blah" 
credentials += Credentials(Path.userHome / ".s3credentials")

~/.s3credentials:

realm=Amazon S3
host=s3-us-west-2.amazonaws.com # You need this regardless, because sbt Credentials needs it :\
user=<Access Key ID>
password=<Secret Access Key>

Just create two sample files called "a" and "b" in the same directory that contains build.sbt, then try:

$ sbt s3-upload

You can also see progress while uploading:

$ sbt
> set S3.progress in S3.upload := true
> s3-upload
[==================================================]   100%   zipa.txt
[=====================================>            ]    74%   zipb.jar

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sbt-s3 is a simple sbt plugin to manipulate objects on Amazon S3

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