320 lines
9.7 KiB
Bash
Executable File
320 lines
9.7 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Shared Agent Utilities - Minimal, focused helper functions
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set -euo pipefail
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#######################
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## PROJECT DETECTION ##
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#######################
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# Cache file name for detected project info
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_LOKI_PROJECT_CACHE=".loki-project.json"
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# Read cached project detection if valid
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# Usage: _read_project_cache "/path/to/project"
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# Returns: cached JSON on stdout (exit 0) or nothing (exit 1)
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_read_project_cache() {
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local dir="$1"
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local cache_file="${dir}/${_LOKI_PROJECT_CACHE}"
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if [[ -f "${cache_file}" ]]; then
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local cached
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cached=$(cat "${cache_file}" 2>/dev/null) || return 1
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if echo "${cached}" | jq -e '.type and .build != null and .test != null and .check != null' &>/dev/null; then
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echo "${cached}"
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return 0
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fi
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fi
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return 1
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}
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# Write project detection result to cache
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# Usage: _write_project_cache "/path/to/project" '{"type":"rust",...}'
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_write_project_cache() {
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local dir="$1"
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local json="$2"
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local cache_file="${dir}/${_LOKI_PROJECT_CACHE}"
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echo "${json}" > "${cache_file}" 2>/dev/null || true
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}
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_detect_heuristic() {
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local dir="$1"
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# Rust
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if [[ -f "${dir}/Cargo.toml" ]]; then
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echo '{"type":"rust","build":"cargo build","test":"cargo test","check":"cargo check"}'
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return 0
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fi
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# Go
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if [[ -f "${dir}/go.mod" ]]; then
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echo '{"type":"go","build":"go build ./...","test":"go test ./...","check":"go vet ./..."}'
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return 0
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fi
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# Node.JS/Deno/Bun
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if [[ -f "${dir}/deno.json" ]] || [[ -f "${dir}/deno.jsonc" ]]; then
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echo '{"type":"deno","build":"deno task build","test":"deno test","check":"deno lint"}'
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return 0
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fi
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if [[ -f "${dir}/package.json" ]]; then
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local pm="npm"
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[[ -f "${dir}/bun.lockb" ]] || [[ -f "${dir}/bun.lock" ]] && pm="bun"
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[[ -f "${dir}/pnpm-lock.yaml" ]] && pm="pnpm"
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[[ -f "${dir}/yarn.lock" ]] && pm="yarn"
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echo "{\"type\":\"nodejs\",\"build\":\"${pm} run build\",\"test\":\"${pm} test\",\"check\":\"${pm} run lint\"}"
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return 0
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fi
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# Python
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if [[ -f "${dir}/pyproject.toml" ]] || [[ -f "${dir}/setup.py" ]] || [[ -f "${dir}/setup.cfg" ]]; then
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local test_cmd="pytest"
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local check_cmd="ruff check ."
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if [[ -f "${dir}/poetry.lock" ]]; then
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test_cmd="poetry run pytest"
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check_cmd="poetry run ruff check ."
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elif [[ -f "${dir}/uv.lock" ]]; then
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test_cmd="uv run pytest"
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check_cmd="uv run ruff check ."
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fi
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echo "{\"type\":\"python\",\"build\":\"\",\"test\":\"${test_cmd}\",\"check\":\"${check_cmd}\"}"
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return 0
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fi
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# JVM (Maven)
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if [[ -f "${dir}/pom.xml" ]]; then
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echo '{"type":"java","build":"mvn compile","test":"mvn test","check":"mvn verify"}'
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return 0
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fi
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# JVM (Gradle)
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if [[ -f "${dir}/build.gradle" ]] || [[ -f "${dir}/build.gradle.kts" ]]; then
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local gw="gradle"
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[[ -f "${dir}/gradlew" ]] && gw="./gradlew"
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echo "{\"type\":\"java\",\"build\":\"${gw} build\",\"test\":\"${gw} test\",\"check\":\"${gw} check\"}"
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return 0
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fi
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# .NET / C#
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if compgen -G "${dir}/*.sln" &>/dev/null || compgen -G "${dir}/*.csproj" &>/dev/null; then
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echo '{"type":"dotnet","build":"dotnet build","test":"dotnet test","check":"dotnet build --warnaserrors"}'
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return 0
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fi
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# C/C++ (CMake)
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if [[ -f "${dir}/CMakeLists.txt" ]]; then
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echo '{"type":"cmake","build":"cmake --build build","test":"ctest --test-dir build","check":"cmake --build build"}'
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return 0
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fi
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# Ruby
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if [[ -f "${dir}/Gemfile" ]]; then
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local test_cmd="bundle exec rake test"
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[[ -f "${dir}/Rakefile" ]] && grep -q "rspec" "${dir}/Gemfile" 2>/dev/null && test_cmd="bundle exec rspec"
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echo "{\"type\":\"ruby\",\"build\":\"\",\"test\":\"${test_cmd}\",\"check\":\"bundle exec rubocop\"}"
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return 0
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fi
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# Elixir
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if [[ -f "${dir}/mix.exs" ]]; then
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echo '{"type":"elixir","build":"mix compile","test":"mix test","check":"mix credo"}'
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return 0
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fi
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# PHP
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if [[ -f "${dir}/composer.json" ]]; then
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echo '{"type":"php","build":"","test":"./vendor/bin/phpunit","check":"./vendor/bin/phpstan analyse"}'
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return 0
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fi
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# Swift
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if [[ -f "${dir}/Package.swift" ]]; then
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echo '{"type":"swift","build":"swift build","test":"swift test","check":"swift build"}'
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return 0
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fi
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# Zig
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if [[ -f "${dir}/build.zig" ]]; then
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echo '{"type":"zig","build":"zig build","test":"zig build test","check":"zig build"}'
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return 0
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fi
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# Generic build systems (last resort before LLM)
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if [[ -f "${dir}/justfile" ]] || [[ -f "${dir}/Justfile" ]]; then
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echo '{"type":"just","build":"just build","test":"just test","check":"just lint"}'
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return 0
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fi
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if [[ -f "${dir}/Makefile" ]] || [[ -f "${dir}/makefile" ]] || [[ -f "${dir}/GNUmakefile" ]]; then
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echo '{"type":"make","build":"make build","test":"make test","check":"make lint"}'
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return 0
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fi
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return 1
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}
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# Gather lightweight evidence about a project for LLM analysis
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# Usage: _gather_project_evidence "/path/to/project"
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# Returns: evidence string on stdout
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_gather_project_evidence() {
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local dir="$1"
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local evidence=""
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evidence+="Root files and directories:"$'\n'
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evidence+=$(ls -1 "${dir}" 2>/dev/null | head -50)
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evidence+=$'\n\n'
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evidence+="File extension counts:"$'\n'
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evidence+=$(find "${dir}" -type f \
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-not -path '*/.git/*' \
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-not -path '*/node_modules/*' \
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-not -path '*/target/*' \
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-not -path '*/dist/*' \
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-not -path '*/__pycache__/*' \
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-not -path '*/vendor/*' \
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-not -path '*/.build/*' \
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2>/dev/null \
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| sed 's/.*\.//' | sort | uniq -c | sort -rn | head -10)
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evidence+=$'\n\n'
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local config_patterns=("*.toml" "*.yaml" "*.yml" "*.json" "*.xml" "*.gradle" "*.gradle.kts" "*.cabal" "*.pro" "Makefile" "justfile" "Justfile" "Dockerfile" "Taskfile*" "BUILD" "WORKSPACE" "flake.nix" "shell.nix" "default.nix")
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local found_configs=0
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for pattern in "${config_patterns[@]}"; do
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if [[ ${found_configs} -ge 5 ]]; then
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break
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fi
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local files
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files=$(find "${dir}" -maxdepth 1 -name "${pattern}" -type f 2>/dev/null)
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while IFS= read -r f; do
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if [[ -n "${f}" && ${found_configs} -lt 5 ]]; then
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local basename
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basename=$(basename "${f}")
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evidence+="--- ${basename} (first 30 lines) ---"$'\n'
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evidence+=$(head -30 "${f}" 2>/dev/null)
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evidence+=$'\n\n'
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found_configs=$((found_configs + 1))
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fi
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done <<< "${files}"
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done
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echo "${evidence}"
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}
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# LLM-based project detection fallback
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# Usage: _detect_with_llm "/path/to/project"
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# Returns: JSON on stdout or empty (exit 1)
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_detect_with_llm() {
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local dir="$1"
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local evidence
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evidence=$(_gather_project_evidence "${dir}")
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local prompt
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prompt=$(cat <<-EOF
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Analyze this project directory and determine the project type, primary language, and the correct shell commands to build, test, and check (lint/typecheck) it.
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EOF
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)
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prompt+=$'\n'"${evidence}"$'\n'
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prompt+=$(cat <<-EOF
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Respond with ONLY a valid JSON object. No markdown fences, no explanation, no extra text.
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The JSON must have exactly these 4 keys:
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{"type":"<language>","build":"<build command>","test":"<test command>","check":"<lint or typecheck command>"}
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Rules:
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- "type" must be a single lowercase word (e.g. rust, go, python, nodejs, java, ruby, elixir, cpp, c, zig, haskell, scala, kotlin, dart, swift, php, dotnet, etc.)
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- If a command doesn't apply to this project, use an empty string, ""
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- Use the most standard/common commands for the detected ecosystem
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- If you detect a package manager lockfile, use that package manager (e.g. pnpm over npm)
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EOF
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)
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local llm_response
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llm_response=$(loki --no-stream "${prompt}" 2>/dev/null) || return 1
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llm_response=$(echo "${llm_response}" | sed 's/^```json//;s/^```//;s/```$//' | tr -d '\n' | sed 's/^[[:space:]]*//')
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llm_response=$(echo "${llm_response}" | grep -o '{[^}]*}' | head -1)
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if echo "${llm_response}" | jq -e '.type and .build != null and .test != null and .check != null' &>/dev/null; then
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echo "${llm_response}" | jq -c '{type: (.type // "unknown"), build: (.build // ""), test: (.test // ""), check: (.check // "")}'
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return 0
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fi
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return 1
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}
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# Detect project type and return build/test commands
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# Uses: cached result -> fast heuristics -> LLM fallback
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detect_project() {
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local dir="${1:-.}"
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local cached
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if cached=$(_read_project_cache "${dir}"); then
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echo "${cached}" | jq -c '{type, build, test, check}'
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return 0
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fi
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local result
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if result=$(_detect_heuristic "${dir}"); then
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local enriched
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enriched=$(echo "${result}" | jq -c '. + {"_detected_by":"heuristic","_cached_at":"'"$(date -Iseconds)"'"}')
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_write_project_cache "${dir}" "${enriched}"
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echo "${result}"
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return 0
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fi
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if result=$(_detect_with_llm "${dir}"); then
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local enriched
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enriched=$(echo "${result}" | jq -c '. + {"_detected_by":"llm","_cached_at":"'"$(date -Iseconds)"'"}')
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_write_project_cache "${dir}" "${enriched}"
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echo "${result}"
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return 0
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fi
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echo '{"type":"unknown","build":"","test":"","check":""}'
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}
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###########################
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## FILE SEARCH UTILITIES ##
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###########################
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_search_files() {
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local pattern="$1"
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local dir="${2:-.}"
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find "${dir}" -type f -name "${pattern}" \
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-not -path '*/target/*' \
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-not -path '*/node_modules/*' \
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-not -path '*/.git/*' \
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-not -path '*/dist/*' \
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-not -path '*/__pycache__/*' \
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2>/dev/null | head -25
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}
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get_tree() {
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local dir="${1:-.}"
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local depth="${2:-3}"
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if command -v tree &>/dev/null; then
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tree -L "${depth}" --noreport -I 'node_modules|target|dist|.git|__pycache__|*.pyc' "${dir}" 2>/dev/null || find "${dir}" -maxdepth "${depth}" -type f | head -50
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else
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find "${dir}" -maxdepth "${depth}" -type f \
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-not -path '*/target/*' \
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-not -path '*/node_modules/*' \
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-not -path '*/.git/*' \
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2>/dev/null | head -50
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fi
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}
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