(devlake) branch main updated: build(backend): cache Go modules and build output in Dockerfile.local (#9249)

[klesh]

This is an automated email from the ASF dual-hosted git repository.

klesh pushed a commit to branch main
in repository https://gitbox.apache.org/repos/asf/devlake.git


The following commit(s) were added to refs/heads/main by this push:
     new e32a6e7e9 build(backend): cache Go modules and build output in 
Dockerfile.local (#9249)
e32a6e7e9 is described below

commit e32a6e7e97ed84fb4b4a68d07c62ec4d35f67351
Author: Dirk <dodi...@proton.me>
AuthorDate: Mon Oct 26 17:31:48 2026 +0100

    build(backend): cache Go modules and build output in Dockerfile.local 
(#9249)
    
    Download modules in a separate layer keyed on go.mod/go.sum and use
    BuildKit cache mounts for the module and build caches in the
    mock/swag/plugin/server steps, so a source change no longer re-downloads
    all modules and rebuilds every plugin from scratch.
    
    Signed-off-by: DoDiODev <dodi...@proton.me>
---
 backend/Dockerfile.local | 27 +++++++++++++++++++++------
 1 file changed, 21 insertions(+), 6 deletions(-)

diff --git a/backend/Dockerfile.local b/backend/Dockerfile.local
index 68412503e..8651900d5 100644
--- a/backend/Dockerfile.local
+++ b/backend/Dockerfile.local
@@ -51,21 +51,36 @@ RUN go install github.com/vektra/mockery/v3@v3.8.1
 RUN go install github.com/swaggo/swag/cmd/swag@v1.16.6
 
 WORKDIR /app
+
+# Cache Go module downloads in a separate layer (only re-runs when 
go.mod/go.sum change)
+COPY go.mod go.sum ./
+RUN --mount=type=cache,target=/go/pkg/mod \
+    go mod download
+
+# Now copy the rest of the source
 COPY . /app
 ENV GOBIN=/app/bin
 
 ARG TAG=
 ARG SHA=
 
-# Generate mocks and swagger
-RUN make mock
-RUN make swag
+# Generate mocks and swagger (use build cache to speed up swag)
+RUN --mount=type=cache,target=/root/.cache/go-build \
+    --mount=type=cache,target=/go/pkg/mod \
+    make mock
+RUN --mount=type=cache,target=/root/.cache/go-build \
+    --mount=type=cache,target=/go/pkg/mod \
+    make swag
 
-# Build plugins
-RUN make build-plugin
+# Build plugins (parallel, with persistent Go build cache)
+RUN --mount=type=cache,target=/root/.cache/go-build \
+    --mount=type=cache,target=/go/pkg/mod \
+    make build-plugin
 
 # Build server
-RUN VERSION=${TAG}@${SHA} make build-server
+RUN --mount=type=cache,target=/root/.cache/go-build \
+    --mount=type=cache,target=/go/pkg/mod \
+    VERSION=${TAG}@${SHA} make build-server
 
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