# Share library between buildsrc and main project

**URL:** <https://discuss.gradle.org/t/share-library-between-buildsrc-and-main-project/22986>\
**Category:** Help/Discuss\
**Created:** [June 16, 2017, 3:35pm UTC](https://discuss.gradle.org/t/share-library-between-buildsrc-and-main-project/22986 "2017-06-16T15:35:40Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![Conorrr](https://sea1.discourse-cdn.com/gradle/user_avatar/discuss.gradle.org/conorrr/32/6169_2.png) [@Conorrr](https://discuss.gradle.org/u/Conorrr)\
**Post date:** [June 16, 2017, 3:35pm UTC](https://discuss.gradle.org/t/share-library-between-buildsrc-and-main-project/22986/1 "2017-06-16T15:35:40Z")

</div>

Hi,

I am wondering if there is any way the following can be done.

I have a project that has a structure that looks like this:

```gradle
.
├── build.gradle
├── buildSrc
│ ├── codegen-util
│ │ └── src...
│ └── codegen-tool
│ └── src...
├── web-service1
│ └── src...
├── web-service2
│ └── src...
└── web-service3
    └── src...

```

Basically `codegen-tool` is a used by each of the services to generate some code at build time. This all works perfectly. I’ve reached a point where the code that is generated relies on some utilities in the `codgen-util` library.

Currently as part of the test step of the `codegen-tool` some dummy code is generated and compiled; then I run some tests against the generated code. This all works perfectly the way I currently have things set up. What I can’t figure out how to do is add the `codegen-util` library as a dependency in my web-service projects.

Is there a way I can achieve having the `codegen-util` project as a dependency in both the `codegen-tool` tests and the web-services?

Thanks

Conor

---

<div class="post-metadata">

**Author:** ![Pierre1](https://avatars.discourse-cdn.com/v4/letter/p/a8b319/32.png) [@Pierre1](https://discuss.gradle.org/u/Pierre1)\
**Post date:** [June 21, 2017, 8:14am UTC](https://discuss.gradle.org/t/share-library-between-buildsrc-and-main-project/22986/2 "2017-06-21T08:14:51Z")

</div>

Hello,

Had the same issue (sort of) and I fixed it more or less cleanly by overriding the main SourceSet.  
Create a new subproject and in the build.gradle of that project:

```gradle
plugins {
    id 'java'
}
sourceSets {
    main {
        java {
            srcDirs 'buildSrc/codegen-util/src/main/java', 'src/main/java'
        }
        resources {
            srcDirs 'buildSrc/codegen-util/src/main/resources', 'src/main/resources'
        }
    }
}       

```

Bind this subproject as a dependency where needed and this should do the trick.  
Nevertheless, when it is possible I try to refactor the project and isolate the code in a shared library.

---

<div class="post-metadata">

**Author:** ![Conorrr](https://sea1.discourse-cdn.com/gradle/user_avatar/discuss.gradle.org/conorrr/32/6169_2.png) [@Conorrr](https://discuss.gradle.org/u/Conorrr)\
**Post date:** [June 21, 2017, 2:34pm UTC](https://discuss.gradle.org/t/share-library-between-buildsrc-and-main-project/22986/3 "2017-06-21T14:34:30Z")

</div>

Thanks.

This worked pretty nicely, It’s not quite perfect but it’s neat enough. I also moved the dependencies from the real project into a separate gradle file and then used `apply from:` to import them to each of the projects.

I have to build the project twice whenever I make changes but it’s pretty small. I guess if i really wanted I could remove the tests from the mirror project to speed things up.