rust tutorial code extractor

.gitignore

@@ -17,3 +17,8 @@ desktop.ini
 /build
 
 tags
+
+# Rust workspace build target
+/target
+/testing/extract-tutorial-code/target
+Cargo.lock

Cargo.toml

@@ -0,0 +1,8 @@
+[workspace]
+members = [
+  "testing/extract-tutorial-code",
+]
+
+exclude = [
+  "testing/crowdfunding-esdt",
+]

docs/developers/tutorials/crowdfunding-p1.md

@@ -83,8 +83,7 @@ Let's have a quick look around the project.
 
 Open `Cargo.toml` in the text editor of your choice, and add the following content:
 
-```
-Cargo.toml
+```toml,file=Cargo.toml
 [package]
 name = "crowdfunding"
 version = "0.0.1"

docs/developers/tutorials/crowdfunding-p2.md

@@ -43,7 +43,7 @@ Also note that BigUint logic does not reside in the contract, but is built into
 
 Let's test that initialization works.
 
-```
+```json,file=crowdfunding-init.scen.json
 {
     "name": "crowdfunding deployment test",
     "steps": [
@@ -154,7 +154,7 @@ To test the function, we'll add a new test file, in the same `mandos` folder. Le
 
 To avoid duplicating the deployment code, we import it from `test-init.scen.json` .
 
-```
+```json,file=crowdfunding-fund.scen.json
 {
   "name": "crowdfunding funding",
   "steps": [
@@ -272,7 +272,7 @@ Note: `panic!` works in contracts, but it is highly discouraged.
 
 We'll create another test file to verify that the validation works: `test-fund-too-late.scen.json` .
 
-```
+```json,file=crowdfunding-fund-too-late.scen.json
 {
   "name": "trying to fund one block too late",
   "steps": [
@@ -513,7 +513,7 @@ The only new function here is `send_tx`, which simply forwards funds from the co
 
 If you followed all the steps presented until now, you should have ended up with a contract that looks something like:
 
-```
+```rust,file=final.rs
 #![no_std]
 
 imports!();

testing/crowdfunding-esdt/.gitignore

@@ -0,0 +1,7 @@
+# Generated by `extract-tutorial-code`
+/mandos
+/src/lib.rs
+/Cargo.toml
+
+/target/
+*/target/

testing/extract-tutorial-code/Cargo.toml

@@ -0,0 +1,13 @@
+[package]
+name = "extract-tutorial-code"
+version = "0.0.0"
+authors = ["Andrei Marinica <[email protected]>"]
+edition = "2018"
+
+[[bin]]
+name = "test-gen"
+path = "src/extract_code.rs"
+
+[dependencies]
+waltz = "0.4.1"
+pulldown-cmark = { version = "0.1", default-features = false }

testing/extract-tutorial-code/src/extract_code.rs

@@ -0,0 +1,52 @@
+use std::{fs, fs::File, io::Write, path::Path};
+
+use waltz::CodeBlock;
+
+fn extract_code_blocks_from_file<P: AsRef<Path>>(path: P) -> Vec<CodeBlock> {
+    let contents = fs::read_to_string(path.as_ref())
+        .unwrap_or_else(|e| panic!("not found: {} {:?}", e, path.as_ref()));
+    let markdown = pulldown_cmark::Parser::new(contents.as_str());
+    waltz::extract_code_blocks(markdown).unwrap()
+}
+
+fn extract_crowdfunding_tutorial_code_blocks() -> Vec<CodeBlock> {
+    let mut code_blocks_1 =
+        extract_code_blocks_from_file("../../docs/developers/tutorials/crowdfunding-p1.md");
+    let code_blocks_2 =
+        extract_code_blocks_from_file("../../docs/developers/tutorials/crowdfunding-p2.md");
+    code_blocks_1.extend(code_blocks_2.into_iter());
+    code_blocks_1
+}
+
+fn write_code_block<P: AsRef<Path>>(path: P, code_block: &CodeBlock) {
+    let mut file = File::create(path).unwrap();
+    file.write_all(code_block.content().as_bytes()).unwrap();
+}
+
+fn main() {
+    fs::create_dir_all("../crowdfunding-esdt/mandos").unwrap();
+
+    let code_blocks = extract_crowdfunding_tutorial_code_blocks();
+    for code_block in &code_blocks {
+        if let Some(filename) = code_block.filename() {
+            println!("{}", filename.as_str());
+            match filename.as_str() {
+                "Cargo.toml" => write_code_block("../crowdfunding-esdt/Cargo.toml", code_block),
+                "final.rs" => write_code_block("../crowdfunding-esdt/src/lib.rs", code_block),
+                "crowdfunding-init.scen.json" => write_code_block(
+                    "../crowdfunding-esdt/mandos/crowdfunding-init.scen.json",
+                    code_block,
+                ),
+                "crowdfunding-fund.scen.json" => write_code_block(
+                    "../crowdfunding-esdt/mandos/crowdfunding-fund.scen.json",
+                    code_block,
+                ),
+                "crowdfunding-fund-too-late.scen.json" => write_code_block(
+                    "../crowdfunding-esdt/mandos/crowdfunding-fund-too-late.scen.json",
+                    code_block,
+                ),
+                _ => {}
+            }
+        }
+    }
+}