settled-reach/.config/hooks/pre-push

#!/usr/bin/env bash
# Pre-push hook: lint GDScript and Rust before pushing.
# Installed via: git config core.hooksPath .config/hooks
set -euo pipefail

REPO_ROOT="$(git rev-parse --show-toplevel)"
ERRORS=0

echo "pre-push: running lint checks..."

# --- Detect which directories have changes vs remote ---
# Prefer origin/<branch> as the baseline (what the remote already has),
# but fall back to origin/main for first-push of a new branch — otherwise
# every check runs against nothing and the hook treats the whole repo as
# changed, spending tens of seconds on linters and JSON validation that
# have no diff to cover (e.g. pushing a wiki-only branch rebuilds GDScript
# and runs clippy + ruff + validates all 2762 JSON files).
BRANCH=$(git branch --show-current)
if git rev-parse --verify "origin/$BRANCH" >/dev/null 2>&1; then
    REMOTE_REF="origin/$BRANCH"
elif git rev-parse --verify "origin/main" >/dev/null 2>&1; then
    REMOTE_REF="origin/main"
else
    REMOTE_REF=""
fi

if [ -n "$REMOTE_REF" ]; then
    CLIENT_CHANGED=$(git diff --name-only "$REMOTE_REF"..HEAD -- client/ 2>/dev/null | wc -l)
    SERVER_CHANGED=$(git diff --name-only "$REMOTE_REF"..HEAD -- server/ 2>/dev/null | wc -l)
    TOOLING_CHANGED=$(git diff --name-only "$REMOTE_REF"..HEAD -- tooling/ pyproject.toml 2>/dev/null | wc -l)
else
    # No remote at all (e.g. fresh clone before first fetch) — be safe, run everything
    CLIENT_CHANGED=1
    SERVER_CHANGED=1
    TOOLING_CHANGED=1
fi

# --- GDScript parse check (headless Godot) ---
GODOT="${GODOT:-godot}"
if [ "$CLIENT_CHANGED" -eq 0 ]; then
    echo "pre-push: no client/ changes — skipping GDScript checks"
elif command -v "$GODOT" >/dev/null 2>&1 && [ -d "$REPO_ROOT/client/.godot" ]; then
    echo "pre-push: checking GDScript (parse)..."
    SCRIPT_ERRORS=$("$GODOT" --headless --path "$REPO_ROOT/client" --quit 2>&1 | grep -ci "SCRIPT ERROR" || true)
    if [ "$SCRIPT_ERRORS" -gt 0 ]; then
        echo "pre-push: FAIL — $SCRIPT_ERRORS GDScript error(s) found"
        "$GODOT" --headless --path "$REPO_ROOT/client" --quit 2>&1 | grep -i "SCRIPT ERROR"
        ERRORS=$((ERRORS + 1))
    else
        echo "pre-push: GDScript parse — OK"
    fi
else
    echo "pre-push: skipping GDScript parse (no .godot/ import — run Godot once to enable)"
fi

# --- GDScript lint (gdlint static analysis) — advisory only until codebase is clean ---
if [ "$CLIENT_CHANGED" -gt 0 ] && command -v gdlint >/dev/null 2>&1 && [ -d "$REPO_ROOT/client/scripts" ]; then
    echo "pre-push: checking GDScript (gdlint — advisory)..."
    LINT_COUNT=$(gdlint "$REPO_ROOT/client/scripts/" "$REPO_ROOT/client/ui/" 2>&1 | grep -c "Error:" || true)
    if [ "$LINT_COUNT" -gt 0 ]; then
        echo "pre-push: gdlint — $LINT_COUNT issue(s) (advisory, not blocking)"
    else
        echo "pre-push: gdlint — OK"
    fi
fi

# --- GDScript format check (gdformat) — advisory only until codebase is clean ---
if [ "$CLIENT_CHANGED" -gt 0 ] && command -v gdformat >/dev/null 2>&1 && [ -d "$REPO_ROOT/client/scripts" ]; then
    echo "pre-push: checking GDScript (gdformat — advisory)..."
    FORMAT_COUNT=$(gdformat --check "$REPO_ROOT/client/scripts/" "$REPO_ROOT/client/ui/" 2>&1 | grep -c "would reformat" || true)
    if [ "$FORMAT_COUNT" -gt 0 ]; then
        echo "pre-push: gdformat — $FORMAT_COUNT file(s) need formatting (advisory, not blocking)"
    else
        echo "pre-push: gdformat — OK"
    fi
fi

# --- Rust lint (clippy + fmt) ---
if [ "$SERVER_CHANGED" -eq 0 ]; then
    echo "pre-push: no server/ changes — skipping Rust checks"
elif command -v cargo >/dev/null 2>&1 && [ -d "$REPO_ROOT/server" ]; then
    # fmt only needs source files — always safe to run
    echo "pre-push: checking Rust (fmt)..."
    if ! (cd "$REPO_ROOT/server" && cargo fmt --check 2>&1); then
        ERRORS=$((ERRORS + 1))
    else
        echo "pre-push: fmt — OK"
    fi

    # clippy needs a build — skip if target/ doesn't exist (cold worktree)
    if [ -d "$REPO_ROOT/server/target" ]; then
        echo "pre-push: checking Rust (clippy)..."
        if ! (cd "$REPO_ROOT/server" && cargo clippy -- -D warnings 2>&1); then
            ERRORS=$((ERRORS + 1))
        else
            echo "pre-push: clippy — OK"
        fi
    else
        echo "pre-push: skipping clippy (no target/ — run 'cargo build' once to enable)"
    fi

    # --- Rust dependency audit (cargo deny) — requires deny.toml config ---
    if command -v cargo-deny >/dev/null 2>&1 && [ -f "$REPO_ROOT/server/deny.toml" ]; then
        echo "pre-push: checking Rust (cargo deny)..."
        if ! (cd "$REPO_ROOT/server" && cargo deny check 2>&1); then
            ERRORS=$((ERRORS + 1))
        else
            echo "pre-push: cargo deny — OK"
        fi
    fi
else
    echo "pre-push: WARNING — cargo not found or server/ missing, skipping Rust lint"
fi

# --- Python lint (ruff) ---
if [ "$TOOLING_CHANGED" -eq 0 ]; then
    echo "pre-push: no tooling/ changes — skipping Python lint"
elif command -v ruff >/dev/null 2>&1 && [ -d "$REPO_ROOT/tooling" ]; then
    echo "pre-push: checking Python (ruff)..."
    if ! (cd "$REPO_ROOT" && ruff check tooling/ 2>&1); then
        ERRORS=$((ERRORS + 1))
    else
        echo "pre-push: ruff — OK"
    fi
else
    echo "pre-push: skipping Python lint (ruff not found — install with: pip install 'ruff>=0.9')"
fi

# --- JSON syntax validation ---
# Use the same REMOTE_REF the directory-change detection above settled on
# (origin/<branch> preferred, origin/main fallback). Without this, a first
# push of a new branch falls through to "validate every JSON in the repo,"
# which on this repo means 2762 Python parses — tens of seconds of churn
# for a push that might not have touched any JSON at all.
if [ -n "$REMOTE_REF" ]; then
    JSON_FILES=$(git diff --name-only "$REMOTE_REF"..HEAD -- '*.json' 2>/dev/null || true)
else
    JSON_FILES=$(git ls-files '*.json')
fi
if [ -n "$JSON_FILES" ]; then
    echo "pre-push: checking JSON syntax..."
    JSON_FAIL=0
    while IFS= read -r f; do
        if [ -f "$REPO_ROOT/$f" ] && ! python3 -m json.tool "$REPO_ROOT/$f" >/dev/null 2>&1; then
            echo "  FAIL: $f"
            JSON_FAIL=$((JSON_FAIL + 1))
        fi
    done <<< "$JSON_FILES"
    if [ "$JSON_FAIL" -gt 0 ]; then
        echo "pre-push: FAIL — $JSON_FAIL JSON file(s) have syntax errors"
        ERRORS=$((ERRORS + 1))
    else
        echo "pre-push: JSON — OK ($(echo "$JSON_FILES" | wc -l) file(s))"
    fi
else
    echo "pre-push: no JSON changes — skipping"
fi

# --- systems.db stamp check (#857) ---
# If the branch touches server/data/systems.db and the meta stamp does not
# match current generator sources, reject the push.  Prevents pushing a
# stale DB snapshot where generator source was modified but the DB was not
# regenerated.
#
# Runs whenever systems.db was modified in ANY branch commit vs. main —
# including on a branch's very first push (review T5: the previous version
# skipped the check for new branches because it compared against origin/$BRANCH,
# which didn't exist yet, leaving a gap where a stale DB could ship via the
# first push).  We compare against origin/main — which always exists — so the
# check covers the first-push case.
DB_IN_PUSH=$(git diff --name-only origin/main...HEAD -- server/data/systems.db 2>/dev/null | wc -l)
if [ "$DB_IN_PUSH" -gt 0 ] && [ -f "$REPO_ROOT/tooling/check-systems-db-stamp" ]; then
    echo "pre-push: checking systems.db stamp..."
    rc=0
    python3 "$REPO_ROOT/tooling/check-systems-db-stamp" || rc=$?
    if [ "$rc" -eq 1 ]; then
        # rc=1 means stale / unknown generator / missing source; message on stderr
        echo "  Fix: run 'make regen-db' then stage server/data/systems.db"
        echo "  Or use /pr-push — it handles regen automatically before pushing."
        ERRORS=$((ERRORS + 1))
    elif [ "$rc" -eq 2 ]; then
        # rc=2 means no meta table — treat as unstamped, warn but don't block.
        # This is legitimate immediately after the meta table is introduced;
        # the next `make regen-db` will populate it (H4).
        echo "pre-push: WARNING — systems.db has no meta stamp — run 'make regen-db' now if this DB was generated by you"
    else
        echo "pre-push: systems.db stamp — OK"
    fi
else
    echo "pre-push: systems.db not in push — skipping stamp check"
fi

# --- Clerk review (D-221) ---
# Spawns the clerk agent to check D-record consistency against the diff.
# Optional: only runs if tooling/clerk-review exists and is executable.
# Set SR_SKIP_CLERK=1 to bypass (e.g. for trivial doc-only pushes).
if [ -x "$REPO_ROOT/tooling/clerk-review" ] && [ "${SR_SKIP_CLERK:-0}" != "1" ]; then
    echo "pre-push: running clerk review..."
    CLERK_VERDICT=$("$REPO_ROOT/tooling/clerk-review" 2>&1 | tee /dev/stderr | tail -1)
    if [ "$CLERK_VERDICT" = "APPROVED" ]; then
        echo "pre-push: clerk — APPROVED"
    elif [ "$CLERK_VERDICT" = "REJECTED" ]; then
        echo "pre-push: clerk — REJECTED (see .cache/pre-push-review.md)"
        ERRORS=$((ERRORS + 1))
    elif [ "$CLERK_VERDICT" = "INCOMPLETE" ]; then
        echo "pre-push: clerk — INCOMPLETE (some reviews didn't finish; NOT blocking)"
        echo "  See .cache/pre-push-review.md. For a full verdict: raise SR_CLERK_MAX_TURNS / SR_CLERK_TIMEOUT,"
        echo "  or add a 'Clerk-Skip:' trailer to bulk-content commits."
    else
        echo "pre-push: clerk — '$CLERK_VERDICT' unrecognized; treating as block (see .cache/pre-push-review.md)"
        ERRORS=$((ERRORS + 1))
    fi
else
    echo "pre-push: clerk review — skipped (not installed or SR_SKIP_CLERK=1)"
fi

if [ "$ERRORS" -gt 0 ]; then
    echo ""
    echo "pre-push: $ERRORS check(s) failed. Push aborted."
    echo "  Fix the errors above, then try again."
    exit 1
fi

echo "pre-push: all checks passed."