Ci improvements (#4)

Reviewed-on: #4

.gitea/workflows/ci.yaml

@@ -2,27 +2,40 @@ name: CI
 
 on:
   push:
+    branches: [main]
   pull_request:
+    branches: [main]
 
 env:
   CARGO_TERM_COLOR: always
-  RUST_BACKTRACE: short
+  RUST_BACKTRACE: "1"
   RUSTFLAGS: -D warnings
 
 jobs:
   fmt:
     name: cargo fmt --check
     runs-on: ubuntu-latest
+    timeout-minutes: 5
     steps:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@1.83
         with:
           components: rustfmt
+      - uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cargo/registry
+            ~/.cargo/git
+            target
+          key: ${{ runner.os }}-cargo-fmt-${{ hashFiles('**/Cargo.lock', '**/Cargo.toml') }}
+          restore-keys: |
+            ${{ runner.os }}-cargo-fmt-
       - run: cargo fmt --all -- --check
 
   clippy:
     name: cargo clippy
     runs-on: ubuntu-latest
+    timeout-minutes: 5
     steps:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@1.83
@@ -42,6 +55,7 @@ jobs:
   test:
     name: cargo test
     runs-on: ubuntu-latest
+    timeout-minutes: 5
     steps:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@1.83
@@ -76,13 +90,13 @@ jobs:
           key: ${{ runner.os }}-cargo-test-${{ hashFiles('**/Cargo.lock', '**/Cargo.toml') }}
           restore-keys: |
             ${{ runner.os }}-cargo-test-
-      - name: install Neovim 0.11 + Vim
+      - name: install Neovim + Vim
         run: |
           set -euo pipefail
-          # Apt's neovim is too old (Ubuntu LTS ships 0.6/0.7), missing
-          # `vim.lsp.get_clients` and rejecting `@group.modifier`
-          # highlight names. Pull the official static tarball instead.
-          NVIM_VER=v0.11.3
+          # Test the minimum supported Neovim version (0.11.0) so we
+          # catch API regressions at the bottom of the supported range.
+          # Pinning to a specific patch version; bump when 0.12 ships.
+          NVIM_VER=v0.11.0
           curl -fsSL -o /tmp/nvim.tar.gz \
             "https://github.com/neovim/neovim/releases/download/${NVIM_VER}/nvim-linux-x86_64.tar.gz"
           sudo tar -xzf /tmp/nvim.tar.gz -C /opt