luke
/
sbt
mirror of https://github.com/sbt/sbt.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
sbt, the interactive build tool
10,384 Commits 23 Branches 321 Tags 105 MiB
Scala 94.5%
Java 3.1%
Shell 1.1%
Batchfile 0.9%
Roff 0.2%
Other 0.1%
Go to file
Eugene Yokota 628d908a5c packageTimestamp setting 
Fixes https://github.com/sbt/sbt/issues/6235

In sbt 1.4.0 (https://github.com/sbt/sbt/pull/5344) we started wiping out the timestamps in JAR
to make the builds more repeatable.
This had an unintended consequence of breaking Play's last-modified response header (https://github.com/playframework/playframework/issues/10572).

This adds a global setting called `packageTimestamp`, which is
initialized as follows:

```scala
packageTimestamp :== Package.defaultTimestamp,
```

Here the `Package.defaultTimestamp` would pick either the value from the
`SOURCE_DATE_EPOCH` environment variable or 2010-01-01.

To opt out of this default, the user can use:

```scala
ThisBuild / packageTimestamp := Package.keepTimestamps

// or

ThisBuild / packageTimestamp := Package.gitCommitDateTimestamp
```

Before (sbt 1.4.6)
------------------

```
$ ll example
total 32
-rw-r--r--  1 eed3si9n  wheel   901 Jan  1  1970 Greeting.class
-rw-r--r--  1 eed3si9n  wheel  3079 Jan  1  1970 Hello$.class
-rw-r--r--  1 eed3si9n  wheel   738 Jan  1  1970 Hello$delayedInit$body.class
-rw-r--r--  1 eed3si9n  wheel   875 Jan  1  1970 Hello.class
```

After (using Package.gitCommitDateTimestamp)
--------------------------------------------

```
$ unzip -v target/scala-2.13/root_2.13-0.1.0-SNAPSHOT.jar
Archive:  target/scala-2.13/root_2.13-0.1.0-SNAPSHOT.jar
 Length   Method    Size  Cmpr    Date    Time   CRC-32   Name
--------  ------  ------- ---- ---------- ----- --------  ----
     288  Defl:N      136  53% 01-25-2021 03:09 888682a9  META-INF/MANIFEST.MF
       0  Stored        0   0% 01-25-2021 03:09 00000000  example/
     901  Defl:N      601  33% 01-25-2021 03:09 3543f377  example/Greeting.class
    3079  Defl:N     1279  59% 01-25-2021 03:09 848b4386  example/Hello$.class
     738  Defl:N      464  37% 01-25-2021 03:09 571f4288  example/Hello$delayedInit$body.class
     875  Defl:N      594  32% 01-25-2021 03:09 ad295259  example/Hello.class
--------          -------  ---                            -------
    5881             3074  48%                            6 files
```
 		2021-01-24 22:14:31 -05:00
.github Cross build to Scala 2.13 2021-01-10 20:24:05 -05:00
client Change remaining sbtc to sbtn 2020-08-15 09:35:59 -07:00
core-macros/src/main/scala/sbt/internal/util/appmacro Work around "a pure expression does nothing" warning, take 2 2020-11-22 17:04:19 -05:00
dependency-tree/src/main/scala/sbt/plugins Split to MiniDependencyTreePlugin 2020-09-22 21:21:01 -04:00
internal Terminal support for GNU Emacs 2021-01-21 10:50:57 +00:00
launch Adds sbt.boot.lock sysprop to opt-out 2018-02-08 13:02:39 +00:00
licenses move remaining pieces of sbt subproject to sbt_pending and fix notices 2010-09-21 21:55:50 -04:00
main packageTimestamp setting 2021-01-24 22:14:31 -05:00
main-actions/src packageTimestamp setting 2021-01-24 22:14:31 -05:00
main-command/src nohup the server from GNU Emacs 2021-01-21 10:51:00 +00:00
main-settings/src Cross build to Scala 2.13 2021-01-10 20:24:05 -05:00
notes Merge pull request #5041 from jsoref/https 2020-06-14 17:34:58 -04:00
project bump lm-coursier-shaded to 2.0.6 (includes coursier 2.0.9) 2021-01-22 17:13:42 +01:00
protocol/src/main Add --sb-launch-jar in bsp connection details 2021-01-11 14:38:02 +01:00
run regen contraband 2020-12-21 17:21:54 +00:00
sbt Cross build to Scala 2.13 2021-01-10 20:24:05 -05:00
scripted-plugin/src/main/scala/sbt -Xfatal-warnings in most subprojects 2018-09-18 11:47:55 -04:00
scripted-sbt-old/src/main/scala/sbt/test Move scripted-sbt-old ScriptedTests file 2020-11-03 09:02:18 -08:00
scripted-sbt-redux Work around Scala parallel collections situation 2021-01-10 18:02:18 -05:00
server-test/src Fix console when supershell is disabled 2020-11-04 18:47:01 -08:00
src/main/conscript sbt 1.3.0 2019-09-04 01:24:08 -04:00
tasks Catch RejectedExecutionException in MainLoop 2020-12-18 16:57:27 -08:00
tasks-standard Cross build to Scala 2.13 2021-01-10 20:24:05 -05:00
testing Cross build to Scala 2.13 2021-01-10 20:24:05 -05:00
util-cache introduce a new new Input/Output: FileInput/FileOutput 2020-11-25 14:04:56 +00:00
util-tracking update scaladoc to reflect argument type of the overload 2020-04-24 16:54:48 +02:00
vscode-sbt-scala https://www.apple.com 2019-09-05 14:11:07 -04:00
zinc-lm-integration/src Use scala-doc-tool config for scala3doc 2021-01-04 10:01:34 +01:00
.appveyor.yml Restore .sbtopts file 2020-11-19 12:42:26 -08:00
.gitattributes Contraband 0.4.6 2020-04-24 17:44:15 -04:00
.gitignore git ignore .bsp 2021-01-21 10:50:57 +00:00
.java-version Configure JVM 1.8 in .java-version 2016-10-07 08:48:23 -05:00
.mailmap Add mailmap 2019-06-11 09:30:14 +02:00
.sbtopts Restore .sbtopts file 2020-11-19 12:42:26 -08:00
.scalafmt.conf Set `lineEndings = preserve` in .scalafmt.conf 2020-06-29 08:15:24 -07:00
CONTRIBUTING.md https://www.scala-sbt.org 2019-09-05 14:11:13 -04:00
DEVELOPING.md Update nightly build instruction 2020-11-21 15:17:02 -05:00
LICENSE Apache License 2.0 2018-09-14 03:38:58 -04:00
NOTICE Apache License 2.0 2018-09-14 03:38:58 -04:00
PROFILING.md fix typo 2018-07-08 22:18:57 +09:00
README.md Update travis-ci badge. s/.org/.com/ 2020-10-29 23:54:09 +09:00
SUPPORT.md Split support into SUPPORT.md 2018-04-25 14:55:09 +01:00
build.sbt Cross build to Scala 2.13 2021-01-10 20:24:05 -05:00
reset.sh 1.0.3-SNAPSHOT 2017-09-16 15:52:58 -04:00
sbt-allsources.sh Build from fresh modules 2020-11-14 14:23:48 -05:00
server.md setting query is "sbt/setting" 2017-10-03 01:45:06 -04:00

README.md

Build Status Latest version Gitter Chat

sbt

sbt is a build tool for Scala, Java, and more.

For general documentation, see https://www.scala-sbt.org/.

sbt 1.x

This is the 1.x series of sbt. The source code of sbt is split across several GitHub repositories, including this one.

  • sbt/io hosts sbt.io module.
  • sbt/librarymanagement hosts sbt.librarymanagement module that wraps Ivy.
  • sbt/zinc hosts Zinc, an incremental compiler for Scala.
  • sbt/sbt, this repository hosts modules that implements the build tool.

Other links

  • Setup: Describes getting started with the latest binary release.
  • FAQ: Explains how to get help and more.
  • sbt/sbt-zero-seven: hosts sbt 0.7.7 and earlier versions

Issues and Pull Requests

Please read CONTRIBUTING carefully before opening a GitHub Issue.

The short version: try searching or asking on StackOverflow.

license

See LICENSE.