Fix a typo, add CI check and typos config

.github/workflows/main.yml

@@ -60,6 +60,14 @@ jobs:
       - name: Run clippy
         run: cargo clippy --all-features --all-targets -- -D warnings
 
+  # If this fails, consider changing your text or adding something to .typos.toml.
+  typos:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Check typos
+        uses: crate-ci/[email protected]
+
   build_result:
     name: Result
     runs-on: ubuntu-latest
@@ -68,11 +76,12 @@ jobs:
       - format
       - clippy
       - msrv
+      - typos
 
     steps:
       - name: Success
         if: ${{ !contains(needs.*.result, 'failure') && !contains(needs.*.result, 'cancelled') }}
         run: exit 0
       - name: Failure
         if: contains(needs.*.result, 'failure') || contains(needs.*.result, 'cancelled')
-        run: exit 1
+        run: exit 1

.typos.toml

@@ -0,0 +1,23 @@
+# See the configuration reference at
+# https://github.com/crate-ci/typos/blob/master/docs/reference.md
+
+# Corrections take the form of a key/value pair. The key is the incorrect word
+# and the value is the correct word. If the key and value are the same, the
+# word is treated as always correct. If the value is an empty string, the word
+# is treated as always incorrect.
+
+# Match Identifier - Case Sensitive
+[default.extend-identifiers]
+colour = "color"
+
+# Match Inside a Word - Case Insensitive
+[default.extend-words]
+
+[files]
+# Include .github, .cargo, etc.
+ignore-hidden = false
+extend-exclude = [
+    # /.git isn't in .gitignore, because git never tracks it.
+    # Typos doesn't know that, though.
+    "/.git",
+]

malloc_size_of_derive/src/lib.rs

@@ -114,7 +114,7 @@ fn test_struct() {
             assert_eq!(
                 no_space.matches(&$e.replace(" ", "")).count(),
                 $count,
-                "counting occurences of {:?} in {:?} (whitespace-insensitive)",
+                "counting occurrences of {:?} in {:?} (whitespace-insensitive)",
                 $e,
                 expanded
             )