cli: make --since flag for repo build, lint and test commands diff yarn lock

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>

.changeset/tasty-impalas-cross.md

@@ -0,0 +1,5 @@
+---
+'@backstage/cli': patch
+---
+
+The `repo test`, `repo lint`, and `repo build` commands will now analyze `yarn.lock` for dependency changes when searching for changed packages. This allows you to use the `--since <ref>` flag even if you have `yarn.lock` changes.

packages/cli/src/commands/repo/build.ts

@@ -84,6 +84,7 @@ export async function command(opts: OptionValues, cmd: Command): Promise<void> {
     const graph = PackageGraph.fromPackages(packages);
     const changedPackages = await graph.listChangedPackages({
       ref: opts.since,
+      analyzeLockfile: true,
     });
     const withDevDependents = graph.collectPackageNames(
       changedPackages.map(pkg => pkg.name),

packages/cli/src/commands/repo/lint.ts

@@ -34,7 +34,10 @@ export async function command(opts: OptionValues): Promise<void> {
 
   if (opts.since) {
     const graph = PackageGraph.fromPackages(packages);
-    packages = await graph.listChangedPackages({ ref: opts.since });
+    packages = await graph.listChangedPackages({
+      ref: opts.since,
+      analyzeLockfile: true,
+    });
   }
 
   // Packages are ordered from most to least number of dependencies, as a

packages/cli/src/commands/repo/test.ts

@@ -93,6 +93,7 @@ export async function command(opts: OptionValues, cmd: Command): Promise<void> {
     const graph = PackageGraph.fromPackages(packages);
     const changedPackages = await graph.listChangedPackages({
       ref: opts.since,
+      analyzeLockfile: true,
     });
 
     const packageNames = Array.from(