Incremental Builds

Cache smarter. Build faster.

Avoid building everything from scratch using Docker Layer Caching. Accelerate build times by 30-40% with smart caching for Gradle, Bazel, Maven, Docker layers, and dependencies.

faster incremental builds
vs. cold builds
1-click
dependency caching setup
no YAML required
8+ min
saved on dep restores
avg. per build
76%
infra cost reduction
Burst SMS
Two layers of speed

Build Intelligence + Docker Layer Caching

Both optimizations work automatically — no cache key configuration, no complex YAML. Enable them in one click and watch your build times drop.

Build Intelligence

Incremental compilation for Bazel, Gradle, and other build systems. Harness caches the outputs of unchanged build targets between runs — so only code that actually changed gets compiled.

Remote cache shared across the entire team — not just per-branch

Works with Bazel, Gradle, and other build systems that support remote caching

Cache invalidation is handled automatically — no stale builds

Docker Layer Caching

1-click automatic caching for software dependencies and Docker layers. Harness detects your package manager and caches its directory — no cache key expressions, no manual paths.

Supports npm, pip, Maven, Gradle, Yarn, Go modules, and more

Docker layer caching across builds and branches

Cache shared across all pipelines using the same dependencies

api-service · Build #2241 · Cold vs. Warm

Cold build (no cache)

Restore dependencies8m 12s
Compile modules (42)14m 30s
Build Docker image6m 44s
Total: 29m 26s

Warm build (with Harness Intelligence)

Restore dependencies12s (cached)
Compile 3 changed modules1m 02s (incremental)
Build Docker image38s (layer cache)
Total: 1m 52s15.7× faster
Incremental Builds

Only build what changed

Traditional CI tools rebuild everything from scratch on every run. Even if 39 of your 42 modules are identical, they compile again. Build Intelligence tracks what changed and only recompiles those targets.

Shared remote cache

Cache is shared across the entire team — not just per-branch. If a colleague already compiled the same artifact, your build skips it entirely.

Zero configuration

Harness automatically detects your build system and configures the remote cache. No Bazel RC files, no Gradle settings — just enable and go.

Works alongside Docker Layer Caching

Build Intelligence handles compilation outputs. Docker Layer Caching handles dependencies. Together, they eliminate most of the wait.

Docker Layer Caching works out of the box

Enable with one click. Harness detects your package manager and caches the right directories automatically.

npm / Yarn

JavaScript / Node.js

node_modules

pip

Python

~/.cache/pip

Maven

Java

~/.m2/repository

Gradle

Java / Android

~/.gradle/caches

Go modules

Go

~/go/pkg/mod

Bundler

Ruby

vendor/bundle

Docker layers

All

Layer-by-layer caching

Cargo

Rust

~/.cargo/registry

“By moving to Harness Cloud, builds accelerated and those infrastructure costs were cut by 76%, saving over $80,000 annually.”

Engineering Team

Burst SMS

76% infra cost reduction · $80k+ saved annually
Get started

Enable intelligent caching in minutes

Build Intelligence and Docker Layer Caching are available in all Harness CI plans. No configuration required — enable and start saving time immediately.

Read the docs