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ci: restore caches before cargo install espflash

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`cargo install espflash --locked` builds from source. Moving the
.embuild + Swatinem cargo-cache restores ahead of it lets the install
use the cached registry index + downloaded crates instead of fetching
them fresh each run — shaves ~30 s off the install on warm caches.

Pure step-reordering; no behavioural change. Both caches still depend
on inputs that exist at checkout, so an earlier restore is safe.

Bigger speedup is available by replacing the cargo install with a
prebuilt-binary install (e.g. taiki-e/install-action drops espflash
from ~3-5 min to ~2 s). Deferred to its own PR.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
Jason Hall 2026-05-03 00:17:25 -04:00
parent dbe679d6ea
commit ed1d18d8df
1 changed files with 14 additions and 10 deletions
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24
.github/workflows/publish.yml vendored
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@ -47,16 +47,10 @@ jobs:
buildtargets: esp32 buildtargets: esp32
ldproxy: true ldproxy: true
- name: Install espflash # Restore caches *before* `cargo install espflash` so it benefits
run: cargo install espflash --locked # from the cached cargo registry (saves the ~30s of crates-io
# index sync + dep download). The .embuild cache also primes
- name: Install cosign # earlier — same restore time, just less time-to-build at the end.
# cosign-installer doesn't publish a moving v4 tag, only specific
# patch versions. Pin to the latest v4.x. (v4 installs cosign 3
# by default, which produces the Sigstore Bundle v0.3 format
# the on-device verifier in src/sig.rs parses.)
uses: sigstore/cosign-installer@v4.1.1
- name: Cache .embuild (ESP-IDF + tools) - name: Cache .embuild (ESP-IDF + tools)
uses: actions/cache@v5 uses: actions/cache@v5
with: with:
@ -73,6 +67,16 @@ jobs:
tools/publisher tools/publisher
shared-key: publish shared-key: publish
- name: Install espflash
run: cargo install espflash --locked
- name: Install cosign
# cosign-installer doesn't publish a moving v4 tag, only specific
# patch versions. Pin to the latest v4.x. (v4 installs cosign 3
# by default, which produces the Sigstore Bundle v0.3 format
# the on-device verifier in src/sig.rs parses.)
uses: sigstore/cosign-installer@v4.1.1
- name: Write gh.env from GITHUB_TOKEN - name: Write gh.env from GITHUB_TOKEN
env: env:
GH_TOKEN: ${{ secrets.GITHUB_TOKEN }} GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}