Working offline with SBT and SNAPSHOT dependencies

Question

I have never been able to work offline with SBT on any of my projects. Now I'm in the middle of a move and my wardrobe-server hosting nexus is offline.

So running say:

sbt "set offline := true" run

I get among other missing deps:

[error] unresolved dependency: se.hedefalk#lift-utils_3.0_2.10;0.2-SNAPSHOT: not found

for the dependency declared as:

"se.hedefalk"       %% ("lift-utils_"+liftEdition) % ("0.2-SNAPSHOT"),

But I do have the dependency in my ivy cache:

$ ll ~/.ivy2/cache/se.hedefalk/lift-utils_3.0_2.10/
total 32
drwxr-xr-x  8 viktor  staff   272B Mar 14 11:36 ./
drwxr-xr-x  5 viktor  staff   170B Mar  8 10:38 ../
drwxr-xr-x  3 viktor  staff   102B Mar 14 11:36 docs/
-rw-r--r--  1 viktor  staff   4.5K Mar  4 15:54 ivy-0.2-SNAPSHOT.xml
-rw-r--r--  1 viktor  staff   4.0K Mar  4 15:54 ivy-0.2-SNAPSHOT.xml.original
-rw-r--r--  1 viktor  staff   1.8K Mar 14 11:36 ivydata-0.2-SNAPSHOT.properties
drwxr-xr-x  3 viktor  staff   102B Mar  8 10:38 jars/
drwxr-xr-x  3 viktor  staff   102B Mar 14 11:36 srcs/

Shouldn't that be enough? That whole set "offline := true" has never ever made any difference for me. The dependency resolution seems to happen before.

I really need to get this working now. I have had problems with this for years, but now I'm in the situation where I simply cannot work at all.

Over here: http://www.scala-sbt.org/0.13.5/docs/Detailed-Topics/Dependency-Management-Flow.html

I read

When offline := true, remote SNAPSHOTs will not be updated by a resolution, even an explicitly requested update. This should effectively support working without a connection to remote repositories. Reproducible examples demonstrating otherwise are appreciated. Obviously, update must have successfully run before going offline.

I probably don't understand this correctly, but is it saying I shouldn't have the problem I have?

I have the same problem using:

> sbt "skip in update := true" run

Using sbt 0.13.5

Edit:

After having my repo online again, resolving all deps and then just setting my wifi to offline I can exit sbt and then run it. However, just running ;reload ;clean ;compile and I'm f***ed again. And If I exit I'm not even able to start sbt at all. Dependency resolution for the project happens before I can for instance try to analyse the dependency graph with dependency-tree or similar. This is highly irritating even if not online if say, trying to understand where a failing transitive dependency comes from.

Answer 1

This seems like a terrible hack, but you can specify your ivy cache as an ivy repository, so that once your dependencies are downloaded, they can be resolved from the cache.

For example, your ~/.sbt/repositories could look like this:

[repositories]
  local
  maven-central
  cache: file://${user.home}/.ivy2/cache, [organisation]/[module]/ivy-[revision].xml, [organisation]/[module]/[type]s/[module]-[revision].[type]

Note: I had to set the ivy and artifact patterns explicitly. Add the local cache below any other repos so they get tried first.

Answer 2

Me neither can use it in a one-liner.

But if I start sbt and then in sbt I use set offline := true it's working well.