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feat: sccache #977

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babb499
feat: devshell
Aug 29, 2025
696410b
feat: devshell
Aug 29, 2025
f205c6a
feat: sccache job
Aug 29, 2025
a79a147
feat: sccache unlimited
Aug 29, 2025
5461fe2
fix: export
Aug 29, 2025
a54dccb
fix: let cargo start server
Aug 29, 2025
7cd8087
fix: start server
Aug 29, 2025
89b78fa
fix: unique sccache dir per runner
Aug 29, 2025
49d3e32
Merge branch 'master' into ci-sccache
skylar-simoncelli Sep 1, 2025
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121 changes: 50 additions & 71 deletions .github/workflows/ci.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -82,7 +82,6 @@ jobs:
run: |
set -euo pipefail
CARGO_HOME="${CARGO_HOME:-$HOME/.cargo}"

echo "--- Cache preflight ---"
# Compute cache key again (same as restore/save)
RUSTC_FULL="$({ nix develop -c rustc -V; } 2>/dev/null || { rustc -V; } 2>/dev/null || true)"
Expand All @@ -92,39 +91,35 @@ jobs:
RUSTC_VER="unknown"
fi
if [[ -f Cargo.lock ]]; then
LOCK_LINE="$(sha256sum Cargo.lock)"
LOCK_LINE="$(nix develop -c sha256sum Cargo.lock)"
LOCK_SHA="${LOCK_LINE%% *}"
else
echo "Cargo.lock missing; skipping manifest check."
LOCK_SHA="nolock"
fi
CACHE="/tmp/rust-cache-${RUSTC_VER}-${LOCK_SHA}"
[[ -d "$CACHE" ]] || { echo "No shared cache present for key: $CACHE"; exit 0; }

MAN="$CACHE/.manifest"; READY="$CACHE/.ready"
WANT="$(printf '%s\n%s\n' "$RUSTC_VER" "$LOCK_SHA")"
WANT="$(nix develop -c printf '%s\n%s\n' "$RUSTC_VER" "$LOCK_SHA")"
REASONS=()

echo "[1/2] Checking manifest/ready..."
if [[ ! -f "$READY" || ! -f "$MAN" ]]; then
echo "manifest/ready missing"
REASONS+=("manifest/ready missing")
else
HAVE="$(head -n 2 "$MAN" || true)"
HAVE="$(nix develop -c head -n 2 "$MAN" || true)"
if [[ "$WANT" != "$HAVE" ]]; then
echo "manifest mismatch"
REASONS+=("manifest mismatch")
fi
fi

echo "[2/2] cargo fetch --locked..."
if ! nix develop -c bash -lc "cargo fetch --locked -q" 2> >(grep -v -E 'untrusted substituter|trusted-public-keys' >&2); then
if ! nix develop -c bash -c "cargo fetch --locked -q" 2> >(nix develop -c grep -v -E 'untrusted substituter|trusted-public-keys' >&2); then
echo "cargo fetch failed → clearing registry/src + git/checkouts, then re-fetching"
rm -rf "$CARGO_HOME"/registry/src/* "$CARGO_HOME"/git/checkouts/* || true
nix develop -c cargo fetch --locked 2> >(grep -v -E 'untrusted substituter|trusted-public-keys' >&2)
nix develop -c rm -rf "$CARGO_HOME"/registry/src/* "$CARGO_HOME"/git/checkouts/* || true
nix develop -c cargo fetch --locked 2> >(nix develop -c grep -v -E 'untrusted substituter|trusted-public-keys' >&2)
REASONS+=("re-fetched dependencies")
fi

echo "--- Preflight summary: ${REASONS[*]:-OK} ---"

- name: Release cache lock
Expand All @@ -145,18 +140,16 @@ jobs:
- name: Enable sccache (RUSTC_WRAPPER)
run: |
set -e
if nix develop -c bash -lc 'command -v sccache' >/dev/null 2>&1; then
echo "RUSTC_WRAPPER=sccache" >> "$GITHUB_ENV"
echo "SCCACHE_DIR=/tmp/sccache" >> "$GITHUB_ENV"
echo "SCCACHE_CACHE_SIZE=30G" >> "$GITHUB_ENV"
echo "CARGO_INCREMENTAL=0" >> "$GITHUB_ENV"
mkdir -p /tmp/sccache
nix develop -c sccache --stop-server || true
nix develop -c sccache --start-server || true
nix develop -c sccache --version || true
else
echo "sccache not in devshell; skipping wrapper."
fi
export SCCACHE_DIR=/tmp/sccache-${{ runner.name }}
export SCCACHE_CACHE_SIZE=0
echo "RUSTC_WRAPPER=sccache" >> "$GITHUB_ENV"
echo "SCCACHE_DIR=$SCCACHE_DIR" >> "$GITHUB_ENV"
echo "SCCACHE_CACHE_SIZE=$SCCACHE_CACHE_SIZE" >> "$GITHUB_ENV"
echo "CARGO_INCREMENTAL=0" >> "$GITHUB_ENV"
mkdir -p "$SCCACHE_DIR"
nix develop -c sccache --stop-server || true
nix develop -c sccache --start-server || true
nix develop -c sccache --version || true

- name: Formatting
run: nix develop -c bash -c "cargo fmt --check"
Expand Down Expand Up @@ -430,49 +423,44 @@ jobs:
run: |
set -euo pipefail
CARGO_HOME="${CARGO_HOME:-$HOME/.cargo}"

echo "--- Cache preflight ---"
# Compute cache key again
# Compute cache key again (same as restore/save)
RUSTC_FULL="$({ nix develop -c rustc -V; } 2>/dev/null || { rustc -V; } 2>/dev/null || true)"
if [[ -n "${RUSTC_FULL:-}" ]]; then
RUSTC_VER="${RUSTC_FULL#rustc }"; RUSTC_VER="${RUSTC_VER%% *}"
else
RUSTC_VER="unknown"
fi
if [[ -f Cargo.lock ]]; then
LOCK_LINE="$(sha256sum Cargo.lock)"
LOCK_LINE="$(nix develop -c sha256sum Cargo.lock)"
LOCK_SHA="${LOCK_LINE%% *}"
else
echo "Cargo.lock missing; skipping manifest check."
LOCK_SHA="nolock"
fi
CACHE="/tmp/rust-cache-${RUSTC_VER}-${LOCK_SHA}"
[[ -d "$CACHE" ]] || { echo "No shared cache present for key: $CACHE"; exit 0; }

MAN="$CACHE/.manifest"; READY="$CACHE/.ready"
WANT="$(printf '%s\n%s\n' "$RUSTC_VER" "$LOCK_SHA")"
WANT="$(nix develop -c printf '%s\n%s\n' "$RUSTC_VER" "$LOCK_SHA")"
REASONS=()

echo "[1/2] Checking manifest/ready..."
if [[ ! -f "$READY" || ! -f "$MAN" ]]; then
echo "manifest/ready missing"
REASONS+=("manifest/ready missing")
else
HAVE="$(head -n 2 "$MAN" || true)"
HAVE="$(nix develop -c head -n 2 "$MAN" || true)"
if [[ "$WANT" != "$HAVE" ]]; then
echo "manifest mismatch"
REASONS+=("manifest mismatch")
fi
fi

echo "[2/2] cargo fetch --locked..."
if ! nix develop -c bash -lc "cargo fetch --locked -q" 2> >(grep -v -E 'untrusted substituter|trusted-public-keys' >&2); then
if ! nix develop -c bash -c "cargo fetch --locked -q" 2> >(nix develop -c grep -v -E 'untrusted substituter|trusted-public-keys' >&2); then
echo "cargo fetch failed → clearing registry/src + git/checkouts, then re-fetching"
rm -rf "$CARGO_HOME"/registry/src/* "$CARGO_HOME"/git/checkouts/* || true
nix develop -c cargo fetch --locked 2> >(grep -v -E 'untrusted substituter|trusted-public-keys' >&2)
nix develop -c rm -rf "$CARGO_HOME"/registry/src/* "$CARGO_HOME"/git/checkouts/* || true
nix develop -c cargo fetch --locked 2> >(nix develop -c grep -v -E 'untrusted substituter|trusted-public-keys' >&2)
REASONS+=("re-fetched dependencies")
fi

echo "--- Preflight summary: ${REASONS[*]:-OK} ---"

- name: Release cache lock
Expand Down Expand Up @@ -504,18 +492,16 @@ jobs:
- name: Enable sccache (RUSTC_WRAPPER)
run: |
set -e
if nix develop -c bash -lc 'command -v sccache' >/dev/null 2>&1; then
echo "RUSTC_WRAPPER=sccache" >> "$GITHUB_ENV"
echo "SCCACHE_DIR=/tmp/sccache" >> "$GITHUB_ENV"
echo "SCCACHE_CACHE_SIZE=30G" >> "$GITHUB_ENV"
echo "CARGO_INCREMENTAL=0" >> "$GITHUB_ENV"
mkdir -p /tmp/sccache
nix develop -c sccache --stop-server || true
nix develop -c sccache --start-server || true
nix develop -c sccache --version || true
else
echo "sccache not in devshell; skipping wrapper."
fi
export SCCACHE_DIR=/tmp/sccache-${{ runner.name }}
export SCCACHE_CACHE_SIZE=0
echo "RUSTC_WRAPPER=sccache" >> "$GITHUB_ENV"
echo "SCCACHE_DIR=$SCCACHE_DIR" >> "$GITHUB_ENV"
echo "SCCACHE_CACHE_SIZE=$SCCACHE_CACHE_SIZE" >> "$GITHUB_ENV"
echo "CARGO_INCREMENTAL=0" >> "$GITHUB_ENV"
mkdir -p "$SCCACHE_DIR"
nix develop -c sccache --stop-server || true
nix develop -c sccache --start-server || true
nix develop -c sccache --version || true

- name: Build
run: nix develop -c bash -c "cargo build --locked --profile=release"
Expand Down Expand Up @@ -823,49 +809,44 @@ jobs:
run: |
set -euo pipefail
CARGO_HOME="${CARGO_HOME:-$HOME/.cargo}"

echo "--- Cache preflight ---"
# Compute cache key again
# Compute cache key again (same as restore/save)
RUSTC_FULL="$({ nix develop -c rustc -V; } 2>/dev/null || { rustc -V; } 2>/dev/null || true)"
if [[ -n "${RUSTC_FULL:-}" ]]; then
RUSTC_VER="${RUSTC_FULL#rustc }"; RUSTC_VER="${RUSTC_VER%% *}"
else
RUSTC_VER="unknown"
fi
if [[ -f Cargo.lock ]]; then
LOCK_LINE="$(sha256sum Cargo.lock)"
LOCK_LINE="$(nix develop -c sha256sum Cargo.lock)"
LOCK_SHA="${LOCK_LINE%% *}"
else
echo "Cargo.lock missing; skipping manifest check."
LOCK_SHA="nolock"
fi
CACHE="/tmp/rust-cache-${RUSTC_VER}-${LOCK_SHA}"
[[ -d "$CACHE" ]] || { echo "No shared cache present for key: $CACHE"; exit 0; }

MAN="$CACHE/.manifest"; READY="$CACHE/.ready"
WANT="$(printf '%s\n%s\n' "$RUSTC_VER" "$LOCK_SHA")"
WANT="$(nix develop -c printf '%s\n%s\n' "$RUSTC_VER" "$LOCK_SHA")"
REASONS=()

echo "[1/2] Checking manifest/ready..."
if [[ ! -f "$READY" || ! -f "$MAN" ]]; then
echo "manifest/ready missing"
REASONS+=("manifest/ready missing")
else
HAVE="$(head -n 2 "$MAN" || true)"
HAVE="$(nix develop -c head -n 2 "$MAN" || true)"
if [[ "$WANT" != "$HAVE" ]]; then
echo "manifest mismatch"
REASONS+=("manifest mismatch")
fi
fi

echo "[2/2] cargo fetch --locked..."
if ! nix develop -c bash -lc "cargo fetch --locked -q" 2> >(grep -v -E 'untrusted substituter|trusted-public-keys' >&2); then
if ! nix develop -c bash -c "cargo fetch --locked -q" 2> >(nix develop -c grep -v -E 'untrusted substituter|trusted-public-keys' >&2); then
echo "cargo fetch failed → clearing registry/src + git/checkouts, then re-fetching"
rm -rf "$CARGO_HOME"/registry/src/* "$CARGO_HOME"/git/checkouts/* || true
nix develop -c cargo fetch --locked 2> >(grep -v -E 'untrusted substituter|trusted-public-keys' >&2)
nix develop -c rm -rf "$CARGO_HOME"/registry/src/* "$CARGO_HOME"/git/checkouts/* || true
nix develop -c cargo fetch --locked 2> >(nix develop -c grep -v -E 'untrusted substituter|trusted-public-keys' >&2)
REASONS+=("re-fetched dependencies")
fi

echo "--- Preflight summary: ${REASONS[*]:-OK} ---"

- name: Release cache lock
Expand All @@ -886,18 +867,16 @@ jobs:
- name: Enable sccache (RUSTC_WRAPPER)
run: |
set -e
if nix develop -c bash -lc 'command -v sccache' >/dev/null 2>&1; then
echo "RUSTC_WRAPPER=sccache" >> "$GITHUB_ENV"
echo "SCCACHE_DIR=/tmp/sccache" >> "$GITHUB_ENV"
echo "SCCACHE_CACHE_SIZE=30G" >> "$GITHUB_ENV"
echo "CARGO_INCREMENTAL=0" >> "$GITHUB_ENV"
mkdir -p /tmp/sccache
nix develop -c sccache --stop-server || true
nix develop -c sccache --start-server || true
nix develop -c sccache --version || true
else
echo "sccache not in devshell; skipping wrapper."
fi
export SCCACHE_DIR=/tmp/sccache-${{ runner.name }}
export SCCACHE_CACHE_SIZE=0
echo "RUSTC_WRAPPER=sccache" >> "$GITHUB_ENV"
echo "SCCACHE_DIR=$SCCACHE_DIR" >> "$GITHUB_ENV"
echo "SCCACHE_CACHE_SIZE=$SCCACHE_CACHE_SIZE" >> "$GITHUB_ENV"
echo "CARGO_INCREMENTAL=0" >> "$GITHUB_ENV"
mkdir -p "$SCCACHE_DIR"
nix develop -c sccache --stop-server || true
nix develop -c sccache --start-server || true
nix develop -c sccache --version || true

- name: Formatting
run: nix develop -c bash -c "cargo fmt --check"
Expand Down
4 changes: 4 additions & 0 deletions flake.nix
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -57,7 +57,9 @@
docker-compose
earthly
gawk
gnugrep
gnumake
jq
kubectl
libiconv
nixfmt-rfc-style
Expand All @@ -69,6 +71,8 @@
python312Packages.pip
python312Packages.virtualenv
rustToolchain
rsync
sccache
sops
xxd
]
Expand Down