ci: check dead links and broken file references

.github/workflows/external-links.yml

@@ -0,0 +1,37 @@
+name: Link check
+
+on:
+  workflow_dispatch: # on demand launches, if needed
+  schedule:
+    - cron: "0 0 * * 2" # 00:00 on Tuesday, near the dependabot.yml
+
+jobs:
+  linkcheck:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: (docs) Check broken HTTPS links
+        uses: lycheeverse/lychee-action@v2
+        id: lychee
+        with:
+          args: >
+            -n -s https --exclude-path docs/node_modules
+            --base 'https://docs.tact-lang.org'
+            --exclude '.*?\\.(?:jpg|png)'
+            docs/README.md './docs/**/*.mdx'
+          output: "./out.md"
+          fail: false
+          failIfEmpty: false
+
+      - name: (dev-docs) Check broken HTTPS links
+        uses: lycheeverse/lychee-action@v2
+        id: lychee_dev
+        with:
+          args: >
+            -n -s https --exclude-path node_modules --exclude-path docs
+            './**/*.md'
+          output: "./out_dev.md"
+          fail: false
+          failIfEmpty: false

.github/workflows/tact-docs-test.yml

@@ -50,6 +50,15 @@ jobs:
         working-directory: docs
         run: yarn deps
 
+      - name: Check broken file references in README
+        if: runner.os != 'macOS' # it's enough to check on Windows and Linux
+        uses: lycheeverse/lychee-action@v2
+        with:
+          args: "-n -s file docs/README.md"
+          output: "/dev/null"
+          fail: true
+          failIfEmpty: false
+
       - name: Build the site
         working-directory: docs
         run: yarn build

.github/workflows/tact.yml

@@ -98,6 +98,15 @@ jobs:
         run: |
           yarn knip
 
+      - name: Check broken file references in internal documentation
+        if: runner.os != 'macOS' # it's enough to check on Windows and Linux
+        uses: lycheeverse/lychee-action@v2
+        with:
+          args: "-n -s file --exclude-path node_modules --exclude-path docs './**/*.md'"
+          output: "/dev/null"
+          fail: true
+          failIfEmpty: false
+
       - name: Show an example .pkg file on Windows
         if: runner.os == 'Windows'
         run: |

.lycheeignore

@@ -0,0 +1,2 @@
+# https://github.com/lycheeverse/lychee-action#excluding-links-from-getting-checked
+https://www.certik.com/resources/blog/secure-smart-contract-programming-in-tact-popular-mistakes-in-the-ton

CONTRIBUTING.md

@@ -63,7 +63,7 @@ yarn test -u spec-name-pattern1 spec-name-pattern2
 
 ## Code quality
 
-To pass review, code has to conform to our [styleguide](/STYLEGUIDE.md).
+To pass review, code has to conform to our [styleguide](./STYLEGUIDE.md).
 
 ## Linting
 
@@ -117,11 +117,11 @@ Some CLI tests can be found in [.github/workflows/tact.yml](./.github/workflows/
 
 ### Parser
 
-The [src/grammar/grammar.ohm](./src/grammar/grammar.ohm) file contains the Tact grammar expressed in the PEG-like language of the [Ohm.js](https://ohmjs.org) parser generator.
+The [src/grammar/grammar.ohm](./src/grammar/prev/grammar.ohm) file contains the Tact grammar expressed in the PEG-like language of the [Ohm.js](https://ohmjs.org) parser generator.
 
-The helper file [src/grammar/grammar.ts](./src/grammar/grammar.ts) contains the logic that transforms concrete syntax trees produced with the help of the Ohm.js-generated parser into abstract syntax trees (ASTs) defined in [src/ast/ast.ts](./src/ast/ast.ts). The grammar.ts file also does a bit of grammar validation, like checking that function or constant attributes are not duplicated or that user identifiers do not start with certain reserved prefixes.
+The helper file [src/grammar/grammar.ts](./src/grammar/prev/grammar.ts) contains the logic that transforms concrete syntax trees produced with the help of the Ohm.js-generated parser into abstract syntax trees (ASTs) defined in [src/ast/ast.ts](./src/ast/ast.ts). The grammar.ts file also does a bit of grammar validation, like checking that function or constant attributes are not duplicated or that user identifiers do not start with certain reserved prefixes.
 
-The [src/grammar/test](./src/grammar/test) folder contains Tact files that are supposed to be parsed without any issues, and the [src/grammar/test-failed](./src/grammar/test-failed) folder contains grammatically incorrect test files which should result in parser errors. The parser error messages and the locations they point to are fixed in the [src/grammar/**snapshots**/grammar.spec.ts.snap](./src/grammar/__snapshots__/grammar.spec.ts.snap) Jest snapshot file.
+The [src/grammar/test](./src/grammar/test) folder contains Tact files that are supposed to be parsed without any issues, and the [src/grammar/test-failed](./src/grammar/test-failed) folder contains grammatically incorrect test files which should result in parser errors. The parser error messages and the locations they point to are fixed in the [src/grammar/**snapshots**/grammar.spec.ts.snap](./src/grammar/prev/__snapshots__/grammar.spec.ts.snap) Jest snapshot file.
 
 ### Typechecker
 

docs/src/content/docs/book/compile.mdx

@@ -126,7 +126,7 @@ This section shows a [Mermaid][mm] diagram of [contract](/book/contracts) depend
 
 If the contract has no dependencies, only its name is displayed:
 
-![Contract dependency diagram without dependencies](../../..//assets/contract-dependency-diagram.png)
+![Contract dependency diagram without dependencies](../../../assets/contract-dependency-diagram.png)
 
 However, if the contract, say `FirstOne`, somewhere in its code computes the [initial state](/book/expressions#initof) of another contract, say `SecondOne`, such a relationship is shown in the diagram:
 
@@ -150,5 +150,5 @@ Thus, the following dependency diagram is produced:
 [tlb]: https://docs.ton.org/develop/data-formats/tl-b-language
 [mm]: https://mermaid.js.org/
 
-[code-jetton-wallet]: https://github.com/tact-lang/jetton/blob/ef802f95c967f2fd37e80893845c3c3ed7c34c78/sources/jetton_wallet.tact
-[code-jetton-minter]: https://github.com/tact-lang/jetton/blob/ef802f95c967f2fd37e80893845c3c3ed7c34c78/sources/jetton_minter_discoverable.tact
+[code-jetton-wallet]: https://github.com/tact-lang/jetton/blob/70f6c9c51755fcab4b451da0cd2f2016476271cc/sources/jetton_wallet.tact
+[code-jetton-minter]: https://github.com/tact-lang/jetton/blob/70f6c9c51755fcab4b451da0cd2f2016476271cc/sources/jetton_minter_discoverable.tact

docs/src/content/docs/ref/core-advanced.mdx

@@ -590,7 +590,7 @@ parsedVarAddr.address.loadUint(123); // 345
 [nanotoncoin]: /book/integers#nanotoncoin
 
 [tvm]: https://docs.ton.org/learn/tvm-instructions/tvm-overview
-[basechain]: https://docs.ton.org/v3/concepts/ton-blockchain/smart-contract-addresses#address-components
+[basechain]: https://docs.ton.org/v3/documentation/smart-contracts/addresses#workchain-id
 [deduplication]: https://docs.ton.org/v3/documentation/data-formats/tlb/library-cells
 
 [storage-fee]: https://docs.ton.org/v3/documentation/smart-contracts/transaction-fees/fees-low-level#storage-fee

docs/src/content/docs/zh-cn/ecosystem/misti.mdx

@@ -2,19 +2,18 @@
 title: Misti 静态分析仪
 ---
 
-[Misti](https://nowarp.github.io/tools/misti/)是一款支持 Tact 的静态程序分析工具。
+[Misti](https://nowarp.io/tools/misti/)是一款支持 Tact 的静态程序分析工具。
 
 ## 米斯蒂是什么？
 
-- **静态程序分析**：Misti 在不执行代码的情况下对代码进行分析，通过检查结构和语法来扫描[漏洞和安全缺陷](https://nowarp.github.io/tools/misti/docs/detectors)。 这种方法可以及早发现问题，防止问题影响生产。
+- **静态程序分析**：Misti 在不执行代码的情况下对代码进行分析，通过检查结构和语法来扫描[漏洞和安全缺陷](https://nowarp.io/tools/misti/docs/detectors)。 这种方法可以及早发现问题，防止问题影响生产。
 
-- **自定义探测器**：创建 [自定义探测器](https://nowarp.github.io/tools/misti/docs/hacking/custom-detector)，根据您的特定需求定制 Misti。 这有助于识别通用工具可能会遗漏的漏洞，确保对代码进行彻底审查。
+- **自定义探测器**：创建 [自定义探测器](https://nowarp.io/tools/misti/docs/hacking/custom-detector)，根据您的特定需求定制 Misti。 这有助于识别通用工具可能会遗漏的漏洞，确保对代码进行彻底审查。
 
-- **CI/CD 集成**：[集成](https://nowarp.github.io/tools/misti/docs/tutorial/ci-cd) Misti 到您的 CI/CD 管道中，以确保持续的代码质量检查，在问题进入生产之前将其捕获。
+- **CI/CD 集成**：[集成](https://nowarp.io/tools/misti/docs/tutorial/ci-cd) Misti 到您的 CI/CD 管道中，以确保持续的代码质量检查，在问题进入生产之前将其捕获。
 
 ## 资源
 
 - [Github](https://github.com/nowarp/misti)
 - [电报社区](https://t.me/misti_dev)
-- [Misti文档](https://nowarp.github.io/docs/misti/)
-- [Misti应用程序接口参考](https://nowarp.github.io/docs/misti/api)
+- [Misti文档](https://nowarp.io/tools/misti/)