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.github: speed up cigocacher build with a small bootstrap cache

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This reduces the time to build cigocacher from 25-30s to ~5s including
the cache restore step, as the cache is only ~20MB.

I also discovered while adding this step that the **/go.sum pattern was
taking 5-15s to evaluate because it's traversing the whole checkout tree
structure, but we only have one go.sum file in the repo that we want to
do content cache busting for. Replacing ** with * means we only look one
level deep for go.sum (in the src/ checkout dir), and knocks 5-15s off
every job.

Updates #10808

Change-Id: I6ccb0c53593e0ccb4048734bb3a0624e23bd17f2
Signed-off-by: Tom Proctor <tomhjp@users.noreply.github.com>
This commit is contained in:
Tom Proctor 2025-12-04 12:38:46 +00:00
parent d199ecac80
commit 58a3b70787
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1 changed files with 40 additions and 16 deletions
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56
.github/workflows/test.yml vendored
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@ -144,10 +144,10 @@ jobs:
path: |
~/.cache/go-build
~\AppData\Local\go-build
key: ${{ runner.os }}-${{ matrix.goarch }}-${{ matrix.buildflags }}-go-${{ matrix.shard }}-${{ hashFiles('**/go.sum') }}-${{ github.job }}-${{ github.run_id }}
key: ${{ runner.os }}-${{ matrix.goarch }}-${{ matrix.buildflags }}-go-${{ matrix.shard }}-${{ hashFiles('*/go.sum') }}-${{ github.job }}-${{ github.run_id }}
restore-keys: |
${{ runner.os }}-${{ matrix.goarch }}-${{ matrix.buildflags }}-go-${{ matrix.shard }}-${{ hashFiles('**/go.sum') }}-${{ github.job }}-
${{ runner.os }}-${{ matrix.goarch }}-${{ matrix.buildflags }}-go-${{ matrix.shard }}-${{ hashFiles('**/go.sum') }}-
${{ runner.os }}-${{ matrix.goarch }}-${{ matrix.buildflags }}-go-${{ matrix.shard }}-${{ hashFiles('*/go.sum') }}-${{ github.job }}-
${{ runner.os }}-${{ matrix.goarch }}-${{ matrix.buildflags }}-go-${{ matrix.shard }}-${{ hashFiles('*/go.sum') }}-
${{ runner.os }}-${{ matrix.goarch }}-${{ matrix.buildflags }}-go-${{ matrix.shard }}-
${{ runner.os }}-${{ matrix.goarch }}-${{ matrix.buildflags }}-go-
- name: build all
@ -215,7 +215,7 @@ jobs:
path: |
~/.cache/go-build
~\AppData\Local\go-build
key: ${{ runner.os }}-${{ matrix.goarch }}-${{ matrix.buildflags }}-go-${{ matrix.shard }}-${{ hashFiles('**/go.sum') }}-${{ github.job }}-${{ github.run_id }}
key: ${{ runner.os }}-${{ matrix.goarch }}-${{ matrix.buildflags }}-go-${{ matrix.shard }}-${{ hashFiles('*/go.sum') }}-${{ github.job }}-${{ github.run_id }}
windows:
permissions:
@ -256,6 +256,20 @@ jobs:
key: ${{ needs.gomod-cache.outputs.cache-key }}
enableCrossOsArchive: true
- name: Restore bootstrap cache
id: restore-cache
uses: actions/cache/restore@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4
with:
# Note: this is only restoring the build cache. Mod cache is shared amongst
# all jobs in the workflow.
path: |
~/.cache/go-build
~\AppData\Local\go-build
key: cigocacher-${{ runner.os }}-${{ runner.arch }}-${{ hashFiles('*/go.sum', '*/cmd/cigocacher/**') }}
restore-keys: |
cigocacher-${{ runner.os }}-${{ runner.arch }}-${{ hashFiles('*/go.sum', '*/cmd/cigocacher/**') }}
cigocacher-${{ runner.os }}-${{ runner.arch }}-
- name: Set up cigocacher
id: cigocacher-setup
uses: ./src/.github/actions/go-cache
@ -264,6 +278,16 @@ jobs:
cache-dir: ${{ github.workspace }}/cigocacher
cigocached-url: ${{ vars.CIGOCACHED_AZURE_URL }}
- name: Save bootstrap cache
# Only save on cache miss and main branch to avoid thrashing.
if: steps.restore-cache.outputs.cache-hit != 'true' && github.ref == 'refs/heads/main'
uses: actions/cache/save@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4
with:
path: |
~/.cache/go-build
~\AppData\Local\go-build
key: cigocacher-${{ runner.os }}-${{ runner.arch }}-${{ hashFiles('*/go.sum', '*/cmd/cigocacher/**') }}
- name: test
if: matrix.key != 'win-bench' # skip on bench builder
working-directory: src
@ -401,10 +425,10 @@ jobs:
path: |
~/.cache/go-build
~\AppData\Local\go-build
key: ${{ runner.os }}-${{ matrix.goos }}-${{ matrix.goarch }}-${{ matrix.goarm }}-go-${{ hashFiles('**/go.sum') }}-${{ github.job }}-${{ github.run_id }}
key: ${{ runner.os }}-${{ matrix.goos }}-${{ matrix.goarch }}-${{ matrix.goarm }}-go-${{ hashFiles('*/go.sum') }}-${{ github.job }}-${{ github.run_id }}
restore-keys: |
${{ runner.os }}-${{ matrix.goos }}-${{ matrix.goarch }}-${{ matrix.goarm }}-go-${{ hashFiles('**/go.sum') }}-${{ github.job }}-
${{ runner.os }}-${{ matrix.goos }}-${{ matrix.goarch }}-${{ matrix.goarm }}-go-${{ hashFiles('**/go.sum') }}-
${{ runner.os }}-${{ matrix.goos }}-${{ matrix.goarch }}-${{ matrix.goarm }}-go-${{ hashFiles('*/go.sum') }}-${{ github.job }}-
${{ runner.os }}-${{ matrix.goos }}-${{ matrix.goarch }}-${{ matrix.goarm }}-go-${{ hashFiles('*/go.sum') }}-
${{ runner.os }}-${{ matrix.goos }}-${{ matrix.goarch }}-${{ matrix.goarm }}-go-
- name: build all
working-directory: src
@ -436,7 +460,7 @@ jobs:
path: |
~/.cache/go-build
~\AppData\Local\go-build
key: ${{ runner.os }}-${{ matrix.goos }}-${{ matrix.goarch }}-${{ matrix.goarm }}-go-${{ hashFiles('**/go.sum') }}-${{ github.job }}-${{ github.run_id }}
key: ${{ runner.os }}-${{ matrix.goos }}-${{ matrix.goarch }}-${{ matrix.goarm }}-go-${{ hashFiles('*/go.sum') }}-${{ github.job }}-${{ github.run_id }}
ios: # similar to cross above, but iOS can't build most of the repo. So, just
# make it build a few smoke packages.
@ -500,10 +524,10 @@ jobs:
path: |
~/.cache/go-build
~\AppData\Local\go-build
key: ${{ runner.os }}-${{ matrix.goos }}-${{ matrix.goarch }}-go-${{ hashFiles('**/go.sum') }}-${{ github.job }}-${{ github.run_id }}
key: ${{ runner.os }}-${{ matrix.goos }}-${{ matrix.goarch }}-go-${{ hashFiles('*/go.sum') }}-${{ github.job }}-${{ github.run_id }}
restore-keys: |
${{ runner.os }}-${{ matrix.goos }}-${{ matrix.goarch }}-go-${{ hashFiles('**/go.sum') }}-${{ github.job }}-
${{ runner.os }}-${{ matrix.goos }}-${{ matrix.goarch }}-go-${{ hashFiles('**/go.sum') }}-
${{ runner.os }}-${{ matrix.goos }}-${{ matrix.goarch }}-go-${{ hashFiles('*/go.sum') }}-${{ github.job }}-
${{ runner.os }}-${{ matrix.goos }}-${{ matrix.goarch }}-go-${{ hashFiles('*/go.sum') }}-
${{ runner.os }}-${{ matrix.goos }}-${{ matrix.goarch }}-go-
- name: build core
working-directory: src
@ -528,7 +552,7 @@ jobs:
path: |
~/.cache/go-build
~\AppData\Local\go-build
key: ${{ runner.os }}-${{ matrix.goos }}-${{ matrix.goarch }}-go-${{ hashFiles('**/go.sum') }}-${{ github.job }}-${{ github.run_id }}
key: ${{ runner.os }}-${{ matrix.goos }}-${{ matrix.goarch }}-go-${{ hashFiles('*/go.sum') }}-${{ github.job }}-${{ github.run_id }}
android:
# similar to cross above, but android fails to build a few pieces of the
@ -581,10 +605,10 @@ jobs:
path: |
~/.cache/go-build
~\AppData\Local\go-build
key: ${{ runner.os }}-js-wasm-go-${{ hashFiles('**/go.sum') }}-${{ github.job }}-${{ github.run_id }}
key: ${{ runner.os }}-js-wasm-go-${{ hashFiles('*/go.sum') }}-${{ github.job }}-${{ github.run_id }}
restore-keys: |
${{ runner.os }}-js-wasm-go-${{ hashFiles('**/go.sum') }}-${{ github.job }}-
${{ runner.os }}-js-wasm-go-${{ hashFiles('**/go.sum') }}-
${{ runner.os }}-js-wasm-go-${{ hashFiles('*/go.sum') }}-${{ github.job }}-
${{ runner.os }}-js-wasm-go-${{ hashFiles('*/go.sum') }}-
${{ runner.os }}-js-wasm-go-
- name: build tsconnect client
working-directory: src
@ -614,7 +638,7 @@ jobs:
path: |
~/.cache/go-build
~\AppData\Local\go-build
key: ${{ runner.os }}-js-wasm-go-${{ hashFiles('**/go.sum') }}-${{ github.job }}-${{ github.run_id }}
key: ${{ runner.os }}-js-wasm-go-${{ hashFiles('*/go.sum') }}-${{ github.job }}-${{ github.run_id }}
tailscale_go: # Subset of tests that depend on our custom Go toolchain.
runs-on: ubuntu-24.04