fix(core): bump fixed monorepo using root version as base

Author: dangreen

packages/core/src/project/monorepo.ts

@@ -197,7 +197,8 @@ export abstract class MonorepoProject extends Project {
 
   private async getBumpOptions(
     project: Project,
-    options: MonorepoProjectBumpOptions
+    options: MonorepoProjectBumpOptions,
+    baseVersion?: string
   ) {
     const {
       preset = bumpDefaultOptions.preset,
@@ -218,7 +219,8 @@ export abstract class MonorepoProject extends Project {
       ...bumpOptions,
       ...byProject?.[name],
       preset: projectPreset,
-      tagPrefix
+      tagPrefix,
+      baseVersion
     }
 
     return projectBumpOptions
@@ -268,13 +270,15 @@ export abstract class MonorepoProject extends Project {
       project: Project
       options: MonorepoProjectBumpOptions
     }[] = []
+    const baseVersion = await this.manifest.getVersion()
     let hasBump = false
     let fixedVersion: string | undefined
 
     for await (const project of this.getProjects()) {
       const projectBumpOptions = await this.getBumpOptions(
         project,
-        options
+        options,
+        baseVersion
       )
       const version = await project.getNextVersion(projectBumpOptions)
 

packages/core/src/project/packageJsonMonorepo.spec.ts

@@ -330,6 +330,36 @@ describe('core', () => {
 
           expect(message).toBe('chore(release): 2.1.0')
         })
+
+        it('should bump using base version', async () => {
+          const path = await forkProject('bump', packageJsonFixedMonorepoProject({
+            0: {
+              version: '4.0.0'
+            }
+          }))
+          const project = new PackageJsonMonorepoProject({
+            mode: 'fixed',
+            root: path,
+            getProjects
+          })
+          const result = await project.bump()
+
+          expect(result).toBe(true)
+          expect(project.versionUpdates).toMatchObject([
+            {
+              name: 'package-json-monorepo-project',
+              to: '4.1.0'
+            },
+            {
+              name: 'subproject-2',
+              to: '4.1.0'
+            },
+            {
+              name: 'subproject-3',
+              to: '4.1.0'
+            }
+          ])
+        })
       })
     })
   })

packages/core/src/project/project.ts

@@ -187,6 +187,7 @@ export abstract class Project {
     const { projectPath } = manifest
     const {
       version: forcedVersion,
+      baseVersion,
       as,
       prerelease,
       firstRelease: firstReleaseOption,
@@ -205,7 +206,7 @@ export abstract class Project {
       })
     }
 
-    const version = await manifest.getVersion()
+    const version = baseVersion || await manifest.getVersion()
 
     if (firstRelease) {
       return version

packages/core/src/project/project.types.ts

@@ -38,6 +38,11 @@ export interface ProjectBumpOptions {
    * If not provided, the version will be determined based on the commits.
    */
   version?: string
+  /**
+   * The base version to use for bumping.
+   * If not provided, the version will be getted from the manifest.
+   */
+  baseVersion?: string
   /**
    * The type of release to bump to.
    * If not provided, the version will be determined based on the commits.