check Cargo.lock in the CI (#43)

##
[changelog](https://github.com/amtoine/nu_plugin_explore/pull/43/commits)
- use the Makefile rules
- check the `Cargo.lock` file (see how the CI is failing because it's
not up to date)
- update `Cargo.lock` (see how the CI becomes green again)

.github/workflows/main.yml

@@ -6,9 +6,6 @@ on:
 
 name: continuous-integration
 
-env:
-  CLIPPY_OPTIONS: "-D warnings"
-
 jobs:
   fmt-check-clippy:
     runs-on: ubuntu-20.04
@@ -21,17 +18,10 @@ jobs:
         with:
           rustflags: ""
 
-      - name: Format
-        run: cargo fmt --all -- --check
-
-      - name: Check the library
-        run: cargo check --workspace --lib
-
-      - name: Check the tests
-        run: cargo check --workspace --tests
+      - run: make check
 
-      - name: Clippy
-        run: cargo clippy --workspace -- $CLIPPY_OPTIONS
+      - name: Check Cargo.lock
+        run: make lock
 
   tests:
     strategy:
@@ -49,5 +39,4 @@ jobs:
         with:
           rustflags: ""
 
-      - name: Tests
-        run: cargo test --workspace
+      - run: make test

.github/workflows/scripts/check-cargo-lock.sh

@@ -0,0 +1,5 @@
+#!/usr/bin/env bash
+
+[[ -n "$(git status --short Cargo.lock)" ]] && exit 1
+
+exit 0

Makefile

@@ -1,13 +1,16 @@
 CLIPPY_OPTIONS="-D warnings"
 
 .PHONY: all check test fmt doc build register install clean
-DEFAULT: check test
+DEFAULT: check lock test
 
 check:
 	cargo fmt --all --verbose -- --check --verbose
 	cargo check --workspace --lib --tests
 	cargo clippy --workspace -- "${CLIPPY_OPTIONS}"
 
+lock: check
+	./.github/workflows/scripts/check-cargo-lock.sh
+
 test: check
 	cargo test --workspace