feat: modernize build system and linting infrastructure

.github/workflows/build-test.yml

@@ -26,16 +26,16 @@ jobs:
         run: pnpm -r --sequential run build
 
       - name: Test all packages
-        run: pnpm -r --sequential run test
+        run: pnpm -r --sequential run test:self
 
       - name: Test with coverage
-        run: pnpm -r --sequential run test:coverage
+        run: pnpm -r --sequential run test:coverage:self
 
       - name: Find coverage files
         id: coverage_files
         run: |
           # Find all coverage-final.json files
-          COVERAGE_FILES=$(find ./packages -name "coverage-final.json" -path "*/reports/coverage/*" | tr '\n' ',' | sed 's/,$//')
+          COVERAGE_FILES=$(find ./packages -name "coverage-final.json" -path "*/coverage/*" | tr '\n' ',' | sed 's/,$//')
           echo "files=$COVERAGE_FILES" >> $GITHUB_OUTPUT
           echo "Found coverage files: $COVERAGE_FILES"
 
@@ -47,4 +47,4 @@ jobs:
           files: ${{ steps.coverage_files.outputs.files }}
           flags: unittests
           name: graphprotocol-contracts
-          fail_ci_if_error: true
+          fail_ci_if_error: false

.github/workflows/lint.yml

@@ -167,15 +167,6 @@ jobs:
             echo "sol_prettier_exit_code=0" >> $GITHUB_OUTPUT
           fi
 
-      - name: Lint Solidity files (Natspec Documentation)
-        id: lint_sol_natspec
-        continue-on-error: true
-        run: |
-          echo "Checking Solidity documentation with natspec-smells..."
-          # Run natspec-smells from root to check all configured packages
-          npx natspec-smells
-          echo "sol_natspec_exit_code=$?" >> $GITHUB_OUTPUT
-
       - name: Lint Markdown files (Markdownlint)
         id: lint_md_markdownlint
         continue-on-error: true
@@ -320,15 +311,6 @@ jobs:
             WARNINGS=$((WARNINGS+1))
           fi
 
-          # Solidity - Natspec Documentation
-          if [ "$SOL_NATSPEC_EXIT_CODE" = "1" ]; then
-            echo "::error::natspec-smells found documentation issues in Solidity files"
-            ERRORS=$((ERRORS+1))
-          elif [ "$SOL_NATSPEC_EXIT_CODE" != "0" ]; then
-            echo "::warning::natspec-smells found warnings in Solidity files"
-            WARNINGS=$((WARNINGS+1))
-          fi
-
           # Markdown - Markdownlint
           if [ "$MD_MARKDOWNLINT_EXIT_CODE" = "1" ]; then
             echo "::error::Markdownlint found errors in Markdown files"

.gitignore

@@ -9,8 +9,7 @@ core.*
 
 # Dependency directories
 node_modules/
-forge-std/
-**/lib/forge-std/
+.pnpm-store/
 
 # Yarn
 .yarn/*
@@ -41,6 +40,8 @@ types-v5/
 wagmi/
 types/
 deployments/hardhat/
+*.js.map
+*.d.ts.map
 
 # TypeScript incremental compilation cache
 **/tsconfig.tsbuildinfo
@@ -69,7 +70,6 @@ arbitrum-addresses-local.json
 addresses-fork.json
 addresses-hardhat.json
 addresses-local*.json
-addresses-local-network.json
 
 # Keys
 .keystore
@@ -78,7 +78,6 @@ addresses-local-network.json
 cache_forge
 forge-artifacts/
 out/
-packages/issuance/lib/forge-std/
 
 # Graph client
 .graphclient

.markdownlint.json

@@ -1,9 +1,9 @@
 {
   "default": true,
+  "MD004": { "style": "dash" },
+  "MD007": { "indent": 2 },
   "MD013": false,
   "MD024": { "siblings_only": true },
-  "MD033": false,
   "MD029": { "style": "ordered" },
-  "MD007": { "indent": 2 },
-  "MD004": { "style": "dash" }
+  "MD033": false
 }

.markdownlintignore

@@ -1,3 +1,7 @@
+# Autogenerated GraphClient files (committed but should not be linted)
+**/.graphclient-extracted/
+**/.graphclient/
+
 # Dependencies
 node_modules/
 
@@ -30,10 +34,7 @@ lcov.info
 packages/*/.eslintcache
 deployments/hardhat/
 .graphclient
-**/chain-31337/
-**/chain-1377/
-**/horizon-localhost/
-**/horizon-hardhat/
-**/subgraph-service-localhost/
-**/subgraph-service-hardhat/
-.changeset/
+**/chain-*/
+**/*-localhost/
+**/*-hardhat/
+.changeset/

.prettierignore

@@ -8,7 +8,6 @@ node_modules/
 
 # Third-party libraries in lib directories
 **/lib/
-forge-std/
 
 # Build outputs (from .gitignore)
 **/build/
@@ -36,9 +35,7 @@ lcov.info
 packages/*/.eslintcache
 deployments/hardhat/
 .graphclient
-**/chain-31337/
-**/chain-1377/
-**/horizon-localhost/
-**/horizon-hardhat/
-**/subgraph-service-localhost/
-**/subgraph-service-hardhat/
+**/.graphclient-extracted/
+**/chain-*/
+**/*-localhost/
+**/*-hardhat/

README.md

@@ -36,10 +36,11 @@ This repository is a pnpm workspaces monorepo containing the following packages:
 | Package                                                     | Latest version                                                                                                                                   | Description                                                                                       |
 | ----------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------ | ------------------------------------------------------------------------------------------------- |
 | [contracts](./packages/contracts)                           | [![npm version](https://badge.fury.io/js/@graphprotocol%2Fcontracts.svg)](https://badge.fury.io/js/@graphprotocol%2Fcontracts)                   | Contracts enabling the open and permissionless decentralized network known as The Graph protocol. |
-| [data-edge](./packages/data-edge)                           | -                                                                                                                                                | Data edge testing and utilities for The Graph protocol.                                           |
+| [data-edge](./packages/data-edge)                           | [![npm version](https://badge.fury.io/js/@graphprotocol%2Fdata-edge.svg)](https://badge.fury.io/js/@graphprotocol%2Fdata-edge)                   | Data edge testing and utilities for The Graph protocol.                                           |
 | [hardhat-graph-protocol](./packages/hardhat-graph-protocol) | [![npm version](https://badge.fury.io/js/hardhat-graph-protocol.svg)](https://badge.fury.io/js/hardhat-graph-protocol)                           | A Hardhat plugin that extends the runtime environment with functionality for The Graph protocol.  |
 | [horizon](./packages/horizon)                               | [![npm version](https://badge.fury.io/js/@graphprotocol%2Fhorizon.svg)](https://badge.fury.io/js/@graphprotocol%2Fhorizon)                       | Contracts for Graph Horizon, the next iteration of The Graph protocol.                            |
 | [interfaces](./packages/interfaces)                         | [![npm version](https://badge.fury.io/js/@graphprotocol%2Finterfaces.svg)](https://badge.fury.io/js/@graphprotocol%2Finterfaces)                 | Contract interfaces for The Graph protocol contracts.                                             |
+| [issuance](./packages/issuance)                             | [![npm version](https://badge.fury.io/js/@graphprotocol%2Fissuance.svg)](https://badge.fury.io/js/@graphprotocol%2Fissuance)                     | Smart contracts for The Graph's token issuance functionality                                      |
 | [subgraph-service](./packages/subgraph-service)             | [![npm version](https://badge.fury.io/js/@graphprotocol%2Fsubgraph-service.svg)](https://badge.fury.io/js/@graphprotocol%2Fsubgraph-service)     | Contracts for the Subgraph data service in Graph Horizon.                                         |
 | [token-distribution](./packages/token-distribution)         | [![npm version](https://badge.fury.io/js/@graphprotocol%2Ftoken-distribution.svg)](https://badge.fury.io/js/@graphprotocol%2Ftoken-distribution) | Contracts managing token locks for network participants.                                          |
 | [toolshed](./packages/toolshed)                             | [![npm version](https://badge.fury.io/js/@graphprotocol%2Ftoolshed.svg)](https://badge.fury.io/js/@graphprotocol%2Ftoolshed)                     | A collection of tools and utilities for the Graph Protocol TypeScript components.                 |
@@ -67,6 +68,52 @@ $ pnpm install
 
 # Build projects
 $ pnpm build
+
+# Run tests
+$ pnpm test
+```
+
+### Script Patterns
+
+This monorepo follows consistent script patterns across all packages to ensure reliable builds and tests:
+
+#### Build Scripts
+
+- **`pnpm build`** (root) - Builds all packages by calling `build:self` on each
+- **`pnpm build`** (package) - Builds dependencies first, then the package itself
+- **`pnpm build:self`** - Builds only the current package (no dependencies)
+- **`pnpm build:dep`** - Builds workspace dependencies needed by the current package
+
+#### Test Scripts
+
+- **`pnpm test`** (root) - Builds everything once, then runs `test:self` on all packages
+- **`pnpm test`** (package) - Builds dependencies first, then runs tests
+- **`pnpm test:self`** - Runs only the package's tests (no building)
+- **`pnpm test:coverage`** (root) - Builds everything once, then runs `test:coverage:self` on all packages
+- **`pnpm test:coverage`** (package) - Builds dependencies first, then runs coverage
+- **`pnpm test:coverage:self`** - Runs only the package's coverage tests (no building)
+
+#### Key Benefits
+
+- **Efficiency**: Root `pnpm test` builds once, then tests all packages
+- **Reliability**: Individual package tests always ensure dependencies are built
+- **Consistency**: Same patterns work at any level (root or package)
+- **Child Package Support**: Packages with child packages delegate testing appropriately
+
+#### Examples
+
+```bash
+# Build everything from root
+pnpm build
+
+# Test everything from root (builds once, tests all)
+pnpm test
+
+# Test a specific package (builds its dependencies, then tests)
+cd packages/horizon && pnpm test
+
+# Test without building (assumes dependencies already built)
+cd packages/horizon && pnpm test:self
 ```
 
 ### Versioning and publishing packages
@@ -118,6 +165,158 @@ pnpm publish --recursive
 
 Alternatively, there is a GitHub action that can be manually triggered to publish a package.
 
+## Linting Configuration
+
+This monorepo uses a comprehensive linting setup with multiple tools to ensure code quality and consistency across all packages.
+
+### Linting Tools Overview
+
+- **ESLint**: JavaScript/TypeScript code quality and style enforcement
+- **Prettier**: Code formatting for JavaScript, TypeScript, JSON, Markdown, YAML, and Solidity
+- **Solhint**: Solidity-specific linting for smart contracts
+- **Markdownlint**: Markdown formatting and style consistency
+- **YAML Lint**: YAML file validation and formatting
+
+### Configuration Architecture
+
+The linting configuration follows a hierarchical structure where packages inherit from root-level configurations:
+
+#### ESLint Configuration
+
+- **Root Configuration**: `eslint.config.mjs` - Modern flat config format
+- **Direct Command**: `npx eslint '**/*.{js,ts,cjs,mjs,jsx,tsx}' --fix`
+- **Behavior**: ESLint automatically searches up parent directories to find configuration files
+- **Package Inheritance**: Packages automatically inherit the root ESLint configuration without needing local config files
+- **Global Ignores**: Configured to exclude autogenerated files (`.graphclient-extracted/`, `lib/`) and build outputs
+
+#### Prettier Configuration
+
+- **Root Configuration**: `prettier.config.cjs` - Base formatting rules for all file types
+- **Direct Command**: `npx prettier -w --cache '**/*.{js,ts,cjs,mjs,jsx,tsx,json,md,sol,yml,yaml}'`
+- **Package Inheritance**: Packages that need Prettier must have a `prettier.config.cjs` file that inherits from the shared config
+- **Example Package Config**:
+
+  ```javascript
+  const baseConfig = require('../../prettier.config.cjs')
+  module.exports = { ...baseConfig }
+  ```
+
+- **Ignore Files**: `.prettierignore` excludes lock files, build outputs, and third-party dependencies
+
+#### Solidity Linting (Solhint)
+
+- **Root Configuration**: `.solhint.json` - Base Solidity linting rules extending `solhint:recommended`
+- **Direct Command**: `npx solhint 'contracts/**/*.sol'` (add `--fix` for auto-fixing)
+- **List Applied Rules**: `npx solhint list-rules`
+- **TODO Comment Checking**: `scripts/check-todos.sh` - Blocks commits and linting if TODO/FIXME/XXX/HACK comments are found in changed Solidity files
+- **Package Inheritance**: Packages can extend the root config with package-specific rules
+- **Configuration Inheritance Limitation**: Solhint has a limitation where nested `extends` don't work properly. When a local config extends a parent config that itself extends `solhint:recommended`, the built-in ruleset is ignored.
+- **Recommended Package Extension Pattern**:
+
+  ```json
+  {
+    "extends": ["solhint:recommended", "./../../.solhint.json"],
+    "rules": {
+      "no-console": "off",
+      "import-path-check": "off"
+    }
+  }
+  ```
+
+#### Markdown Linting (Markdownlint)
+
+- **Root Configuration**: `.markdownlint.json` - Markdown formatting and style rules
+- **Direct Command**: `npx markdownlint '**/*.md' --fix`
+- **Ignore Files**: `.markdownlintignore` automatically picked up by markdownlint CLI
+- **Global Application**: Applied to all markdown files across the monorepo
+
+### Linting Scripts
+
+#### Root Level Scripts
+
+```bash
+# Run all linting tools
+pnpm lint
+
+# Individual linting commands
+pnpm lint:ts      # ESLint + Prettier for TypeScript/JavaScript
+pnpm lint:sol     # TODO check + Solhint + Prettier for Solidity (runs recursively)
+pnpm lint:md      # Markdownlint + Prettier for Markdown
+pnpm lint:json    # Prettier for JSON files
+pnpm lint:yaml    # YAML linting + Prettier
+
+# Lint only staged files (useful for manual pre-commit checks)
+pnpm lint:staged  # Run linting on git-staged files only
+```
+
+#### Package Level Scripts
+
+Each package can define its own linting scripts that work with the inherited configurations:
+
+```bash
+# Example from packages/contracts
+pnpm lint:sol   # Solhint for contracts in this package only
+pnpm lint:ts    # ESLint for TypeScript files in this package
+```
+
+### Pre-commit Hooks (lint-staged)
+
+The repository uses `lint-staged` with Husky to run linting on staged files before commits:
+
+- **Automatic**: Runs automatically on `git commit` via Husky pre-commit hook
+- **Manual**: Run `pnpm lint:staged` to manually check staged files before committing
+- **Configuration**: Root `package.json` contains lint-staged configuration
+- **Custom Script**: `scripts/lint-staged-run.sh` filters out generated files that shouldn't be linted
+- **File Type Handling**:
+  - `.{js,ts,cjs,mjs,jsx,tsx}`: ESLint + Prettier
+  - `.sol`: TODO check + Solhint + Prettier
+  - `.md`: Markdownlint + Prettier
+  - `.json`: Prettier only
+  - `.{yml,yaml}`: YAML lint + Prettier
+
+**Usage**: `pnpm lint:staged` is particularly useful when you want to check what linting changes will be applied to your staged files before actually committing.
+
+### TODO Comment Enforcement
+
+The repository enforces TODO comment resolution to maintain code quality:
+
+- **Scope**: Applies only to Solidity (`.sol`) files
+- **Detection**: Finds TODO, FIXME, XXX, and HACK comments (case-insensitive)
+- **Triggers**:
+  - **Pre-commit**: Blocks commits if TODO comments exist in files being committed
+  - **Regular linting**: Flags TODO comments in locally changed, staged, or untracked Solidity files
+- **Script**: `scripts/check-todos.sh` (must be run from repository root)
+- **Bypass**: Use `git commit --no-verify` to bypass (not recommended for production)
+
+### Key Design Principles
+
+1. **Hierarchical Configuration**: Root configurations provide base rules, packages can extend as needed
+2. **Tool-Specific Inheritance**: ESLint searches up automatically, Prettier requires explicit inheritance
+3. **Generated File Exclusion**: Multiple layers of exclusion for autogenerated content
+4. **Consistent Formatting**: Prettier ensures consistent code formatting across all file types
+5. **Fail-Fast Linting**: Pre-commit hooks catch issues before they enter the repository
+
+### Configuration Files Reference
+
+| Tool         | Root Config           | Package Config                   | Ignore Files                 |
+| ------------ | --------------------- | -------------------------------- | ---------------------------- |
+| ESLint       | `eslint.config.mjs`   | Auto-inherited                   | Built into config            |
+| Prettier     | `prettier.config.cjs` | `prettier.config.cjs` (inherits) | `.prettierignore`            |
+| Solhint      | `.solhint.json`       | `.solhint.json` (array extends)  | N/A                          |
+| Markdownlint | `.markdownlint.json`  | Auto-inherited                   | `.markdownlintignore`        |
+| Lint-staged  | `package.json`        | N/A                              | `scripts/lint-staged-run.sh` |
+
+### Troubleshooting
+
+- **ESLint not finding config**: ESLint searches up parent directories automatically - no local config needed
+- **Prettier not working**: Packages need a `prettier.config.cjs` that inherits from root config
+- **Solhint missing rules**: If extending a parent config, use array format: `["solhint:recommended", "./../../.solhint.json"]` to ensure all rules are loaded
+- **Solhint inheritance not working**: Nested extends don't work - parent config's `solhint:recommended` won't be inherited with simple string extends
+- **Solhint rule reference**: Use `npx solhint list-rules` to see all available rules and their descriptions
+- **Generated files being linted**: Check ignore patterns in `.prettierignore`, `.markdownlintignore`, and ESLint config
+- **Preview lint changes before commit**: Use `pnpm lint:staged` to see what changes will be applied to staged files
+- **Commit blocked by linting**: Fix the linting issues or use `git commit --no-verify` to bypass (not recommended)
+
 ## Documentation
 
 > Coming soon

codecov.yml

@@ -0,0 +1,17 @@
+coverage:
+  status:
+    project:
+      default:
+        informational: true
+    patch:
+      default:
+        informational: true
+
+ignore:
+  - '**/tests/**'
+  - '**/test/**'
+  - '**/*.test.sol'
+  - '**/*.t.sol'
+  - '**/Mock*.sol'
+  - '**/mocks/**'
+  - '**/scripts/**'