Merge pull request #190 from Manubi/patch-1

Added some context.

.github/workflows/ci.yml

@@ -19,17 +19,27 @@ jobs:
       - uses: actions/checkout@v4
         with:
           fetch-depth: 0
-      - uses: actions/checkout@v4
+      - name: Get Core Sans
+        uses: actions/checkout@v4
+        if: "!github.event.pull_request.head.repo.fork"
         with:
           fetch-depth: 0
           repository: mainmatter/core-sans-a-fonts
           ssh-key: ${{ secrets.SSH_PRIVATE_KEY }}
           path: core-sans-a-fonts
-      - name: Install Fonts
+      - name: Install Core Sans Font
+        if: "!github.event.pull_request.head.repo.fork"
         run: |
           sudo cp -r core-sans-a-fonts/* /usr/local/share/fonts/
           sudo fc-cache -f -v
           fc-list | grep "Core Sans"
+      - name: Use Fallback font for fork PRs
+        if: "github.event.pull_request.head.repo.fork"
+        run: |
+          sed -i 's/"BoldFont=CoreSansA65.ttf",//g' book/book.toml
+          sed -i 's/"ItalicFont=CoreSansA45It.ttf",//g' book/book.toml
+          sed -i 's/"BoldItalicFont=CoreSansA65It.ttf",//g' book/book.toml
+          sed -i 's/CoreSansA45.ttf/Open Sans:style=Regular/g' book/book.toml
       - uses: actions-rust-lang/setup-rust-toolchain@v1
       - name: Install exercise plugin
         run: cargo install --path helpers/mdbook-exercise-linker
@@ -39,8 +49,8 @@ jobs:
         run: |
           cargo install mdbook-pandoc --locked --version 0.7.1
           sudo apt-get update
-          sudo apt-get install -y fonts-noto calibre pdftk
+          sudo apt-get install -y fonts-noto fonts-open-sans calibre pdftk
-          
+          sudo fc-cache -f -v
           export PANDOC_VERSION=3.3
           curl -LsSf https://github.com/jgm/pandoc/releases/download/${PANDOC_VERSION}/pandoc-${PANDOC_VERSION}-linux-amd64.tar.gz | tar zxf -
           echo "$PWD/pandoc-${PANDOC_VERSION}/bin" >> $GITHUB_PATH

book/book.toml

@@ -49,8 +49,8 @@ sansfontoptions = [
 ]
 # You can get these fonts here: https://fonts.google.com/selection?query=noto+color+
 monofont = "Noto Sans Mono"
-mainfontfallback = ["Noto Color Emoji:mode=harf"]
+mainfontfallback = ["Open Sans"]
-sansfontfallback = ["Noto Color Emoji:mode=harf"]
+sansfontfallback = ["Open Sans"]
 monofontfallback = [
   "Noto Color Emoji:mode=harf",
 ]
@@ -90,8 +90,8 @@ sansfontoptions = [
 ]
 # You can get these fonts here: https://fonts.google.com/selection?query=noto+color+
 monofont = "Noto Sans Mono"
-mainfontfallback = ["Noto Color Emoji:mode=harf"]
+mainfontfallback = ["Open Sans"]
-sansfontfallback = ["Noto Color Emoji:mode=harf"]
+sansfontfallback = ["Open Sans"]
 monofontfallback = [
   "Noto Color Emoji:mode=harf",
 ]
@@ -121,8 +121,8 @@ metadata-file = "metadata.yml"
 [output.pandoc.profile.html.variables]
 # You can get these fonts here: https://fonts.google.com/selection?query=noto+color+
 monofont = "Noto Sans Mono"
-mainfontfallback = ["Noto Color Emoji:mode=harf"]
+mainfontfallback = ["Open Sans"]
-sansfontfallback = ["Noto Color Emoji:mode=harf"]
+sansfontfallback = ["Open Sans"]
 monofontfallback = [
   "Noto Color Emoji:mode=harf",
 ]

book/src/02_basic_calculator/08_overflow.md

@@ -69,12 +69,18 @@ You may be wondering—what is a profile setting? Let's get into that!
 A [**profile**](https://doc.rust-lang.org/cargo/reference/profiles.html) is a set of configuration options that can be
 used to customize the way Rust code is compiled.
 
-Cargo provides two built-in profiles: `dev` and `release`.\
+Cargo provides 4 built-in profiles: `dev`, `release`, `test`, and `bench`.\
 The `dev` profile is used every time you run `cargo build`, `cargo run` or `cargo test`. It's aimed at local
 development,
 therefore it sacrifices runtime performance in favor of faster compilation times and a better debugging experience.\
 The `release` profile, instead, is optimized for runtime performance but incurs longer compilation times. You need
 to explicitly request via the `--release` flag—e.g. `cargo build --release` or `cargo run --release`.
+The `test` profile is the default profile used by `cargo test`. The `test` profile inherits the settings form the `dev` profile.
+The `bench` profile is the default profile used by `cargo bench`. The `bench` profile inherits from the `release` profile.
+Use `dev` for iterative development and debugging, `release` for optimized production builds,\
+`test` for correctness testing, and `bench` for performance benchmarking.
+
+
 
 > "Have you built your project in release mode?" is almost a meme in the Rust community.\
 > It refers to developers who are not familiar with Rust and complain about its performance on

exercises/02_basic_calculator/04_panics/src/lib.rs

@@ -19,7 +19,7 @@ mod tests {
     // 👇 With the `#[should_panic]` annotation we can assert that we expect the code
     //    under test to panic. We can also check the panic message by using `expected`.
     //    This is all part of Rust's built-in test framework!
-    #[should_panic(expected = "The journey took no time at all, that's impossible!")]
+    #[should_panic(expected = "The journey took no time at all. That's impossible!")]
     fn by_zero() {
         speed(0, 10, 0);
     }

exercises/02_basic_calculator/10_as_casting/src/lib.rs

@@ -23,7 +23,7 @@ mod tests {
 
         // You could solve this by using exactly the same expression as above,
         // but that would defeat the purpose of the exercise. Instead, use a genuine
-        // `i8` value that is equivalent to `255` when converted from `u8`.
+        // `i8` value that is equivalent to `255` when converted to `u8`.
         let y: i8 = todo!();
 
         assert_eq!(x, y);