Files
review-bot/scripts/check-deps.sh
T
Rodin 0619e2b617 fix: address review feedback on check-deps script
- Accept import paths starting with digit (e.g., 9fans.net/go) by
  relaxing filter from ^[a-zA-Z] to ^[[:alnum:]]
- Fix misleading comment: loop uses Bash process substitution, not POSIX
- Remove redundant \$ from grep regex (literal $ unreachable)
- Capture stderr separately in go list to avoid mixing errors with output
- Clarify CONVENTIONS.md wording on transitive vs direct deps

Reviewed-by: sonnet-review-bot
Reviewed-by: gpt-review-bot
2026-05-10 14:09:03 -07:00

134 lines
4.4 KiB
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Executable File

#!/usr/bin/env bash
# check-deps.sh - Enforces the strict dependency allowlist from CONVENTIONS.md
# Exit 1 if any unapproved import is found.
#
# Requires: Bash 4+ (for associative arrays), Go toolchain
#
# The allowlist is parsed from CONVENTIONS.md to maintain a single source of truth.
# Enforces Scope column: "test only" packages cannot appear in non-test code.
set -euo pipefail
# Check bash version
if ((BASH_VERSINFO[0] < 4)); then
echo "❌ Bash 4+ required (found ${BASH_VERSION})"
echo " On macOS: brew install bash"
exit 1
fi
CONVENTIONS_FILE="${1:-CONVENTIONS.md}"
if [ ! -f "$CONVENTIONS_FILE" ]; then
echo "❌ CONVENTIONS.md not found"
exit 1
fi
# Parse approved packages from CONVENTIONS.md table
# Note: uses Bash process substitution (< <(...)) for the loop
# Format: | `package` | use case | scope |
declare -A ALLOWED_PROD=()
declare -A ALLOWED_TEST=()
while IFS= read -r line; do
# Use awk to extract package and scope from table row
pkg=$(echo "$line" | awk -F'|' '{gsub(/^[[:space:]]*`|`[[:space:]]*$/, "", $2); print $2}')
scope=$(echo "$line" | awk -F'|' '{gsub(/^[[:space:]]+|[[:space:]]+$/, "", $4); print tolower($4)}')
# Accept packages starting with letter or digit (e.g., 9fans.net/go)
if [ -n "$pkg" ] && [ "$pkg" != "Package" ] && [[ "$pkg" =~ ^[[:alnum:]] ]]; then
if [[ "$scope" == *"test"* ]]; then
ALLOWED_TEST["$pkg"]=1
else
ALLOWED_PROD["$pkg"]=1
fi
fi
done < <(grep '| `' "$CONVENTIONS_FILE" 2>/dev/null || true)
ALL_ALLOWED=("${!ALLOWED_PROD[@]}" "${!ALLOWED_TEST[@]}")
if [ ${#ALL_ALLOWED[@]} -eq 0 ]; then
echo "⚠️ No approved packages found in $CONVENTIONS_FILE"
echo " (This is fine if you want stdlib-only)"
fi
# Helper: check if import matches any package in an associative array (literal prefix, no glob)
matches_allowlist() {
local import="$1"
shift
local -n allowlist=$1
for allowed in "${!allowlist[@]}"; do
# Exact match
if [ "$import" = "$allowed" ]; then
return 0
fi
# Literal prefix match for subpackages: must match "pkg/" exactly
if [ "${import#"$allowed/"}" != "$import" ]; then
return 0
fi
done
return 1
}
# Get direct module dependencies from go.mod
# Capture stderr separately to avoid mixing error messages with package list
GO_LIST_STDERR=$(mktemp)
trap 'rm -f "$GO_LIST_STDERR"' EXIT
DIRECT_IMPORTS=$(go list -m -f '{{if and (not .Indirect) (not .Main)}}{{.Path}}{{end}}' all 2>"$GO_LIST_STDERR") || {
echo "❌ Failed to list dependencies:"
cat "$GO_LIST_STDERR"
exit 1
}
DIRECT_IMPORTS=$(echo "$DIRECT_IMPORTS" | grep -v '^$' || true)
if [ -z "$DIRECT_IMPORTS" ]; then
echo "✅ No external dependencies"
exit 0
fi
# Check ALL direct dependencies are in some allowlist
VIOLATIONS=""
while IFS= read -r import; do
[ -z "$import" ] && continue
if ! matches_allowlist "$import" ALLOWED_PROD && ! matches_allowlist "$import" ALLOWED_TEST; then
VIOLATIONS="${VIOLATIONS} - ${import} (not in allowlist)"$'\n'
fi
done <<< "$DIRECT_IMPORTS"
if [ -n "$VIOLATIONS" ]; then
echo "❌ UNAPPROVED DEPENDENCIES DETECTED"
echo ""
echo "The following imports are not in the allowlist:"
printf "%s" "$VIOLATIONS"
echo ""
echo "To add a dependency, update CONVENTIONS.md (requires Aaron's approval)"
exit 1
fi
# Enforce Scope: test-only packages must not appear in non-test code
# Get imports used by non-test code only (go list -deps without -test excludes test deps)
PROD_IMPORTS=$(go list -deps -f '{{if not .Standard}}{{.ImportPath}}{{end}}' ./... 2>/dev/null || true)
TEST_ONLY_IN_PROD=""
for test_pkg in "${!ALLOWED_TEST[@]}"; do
# Match exact package or subpackages (pkg or pkg/...)
if echo "$PROD_IMPORTS" | grep -qE "^${test_pkg}(/|$)"; then
TEST_ONLY_IN_PROD="${TEST_ONLY_IN_PROD} - ${test_pkg} (marked 'test only' but used in production code)"$'\n'
fi
done
if [ -n "$TEST_ONLY_IN_PROD" ]; then
echo "❌ TEST-ONLY DEPENDENCIES IN PRODUCTION CODE"
echo ""
printf "%s" "$TEST_ONLY_IN_PROD"
echo ""
echo "These packages are marked 'test only' in CONVENTIONS.md"
echo "and must only be imported from *_test.go files."
exit 1
fi
echo "✅ All dependencies are approved"
echo " Direct module deps: $(echo "$DIRECT_IMPORTS" | wc -l | tr -d ' ')"
echo " Production allowlist: ${#ALLOWED_PROD[@]}, Test-only allowlist: ${#ALLOWED_TEST[@]}"