add wipe sub-command that remove local bugs and identities

6 files changed, 104 insertions, 3 deletions

diff --git a/cache/bug_subcache.go b/cache/bug_subcache.go
index 920fe1dc..21c9a6d2 100644
--- a/cache/bug_subcache.go
+++ b/cache/bug_subcache.go
@@ -38,6 +38,7 @@ func NewRepoCacheBug(repo repository.ClockedRepo,
 		ReadWithResolver:    bug.ReadWithResolver,
 		ReadAllWithResolver: bug.ReadAllWithResolver,
 		Remove:              bug.Remove,
+		RemoveAll:           bug.RemoveAll,
 		MergeAll:            bug.MergeAll,
 	}
 
diff --git a/cache/identity_subcache.go b/cache/identity_subcache.go
index f862ca8b..05a91358 100644
--- a/cache/identity_subcache.go
+++ b/cache/identity_subcache.go
@@ -39,7 +39,8 @@ func NewRepoCacheIdentity(repo repository.ClockedRepo,
 		ReadAllWithResolver: func(repo repository.ClockedRepo, resolvers entity.Resolvers) <-chan entity.StreamedEntity[*identity.Identity] {
 			return identity.ReadAllLocal(repo)
 		},
-		Remove: identity.RemoveIdentity,
+		Remove:    identity.Remove,
+		RemoveAll: identity.RemoveAll,
 		MergeAll: func(repo repository.ClockedRepo, resolvers entity.Resolvers, remote string, mergeAuthor identity.Interface) <-chan entity.MergeResult {
 			return identity.MergeAll(repo, remote)
 		},
diff --git a/cache/repo_cache.go b/cache/repo_cache.go
index 99e9abbd..2121d1e4 100644
--- a/cache/repo_cache.go
+++ b/cache/repo_cache.go
@@ -32,6 +32,7 @@ type cacheMgmt interface {
 	Load() error
 	Build() error
 	SetCacheSize(size int)
+	RemoveAll() error
 	MergeAll(remote string) <-chan entity.MergeResult
 	GetNamespace() string
 	Close() error
diff --git a/cache/repo_cache_common.go b/cache/repo_cache_common.go
index f768b8e2..759536bd 100644
--- a/cache/repo_cache_common.go
+++ b/cache/repo_cache_common.go
@@ -3,12 +3,12 @@ package cache
 import (
 	"sync"
 
-	"github.com/go-git/go-billy/v5"
 	"github.com/pkg/errors"
 
 	"github.com/MichaelMure/git-bug/entities/identity"
 	"github.com/MichaelMure/git-bug/entity"
 	"github.com/MichaelMure/git-bug/repository"
+	"github.com/MichaelMure/git-bug/util/multierr"
 )
 
 func (c *RepoCache) Name() string {
@@ -56,7 +56,7 @@ func (c *RepoCache) GetRemotes() (map[string]string, error) {
 }
 
 // LocalStorage return a billy.Filesystem giving access to $RepoPath/.git/git-bug
-func (c *RepoCache) LocalStorage() billy.Filesystem {
+func (c *RepoCache) LocalStorage() repository.LocalStorage {
 	return c.repo.LocalStorage()
 }
 
@@ -82,6 +82,15 @@ func (c *RepoCache) Fetch(remote string) (string, error) {
 	return c.repo.FetchRefs(remote, prefixes...)
 }
 
+// RemoveAll deletes all entities from the cache and the disk.
+func (c *RepoCache) RemoveAll() error {
+	var errWait multierr.ErrWaitGroup
+	for _, mgmt := range c.subcaches {
+		errWait.Go(mgmt.RemoveAll)
+	}
+	return errWait.Wait()
+}
+
 // MergeAll will merge all the available remote bug and identities
 func (c *RepoCache) MergeAll(remote string) <-chan entity.MergeResult {
 	out := make(chan entity.MergeResult)
@@ -163,6 +172,19 @@ func (c *RepoCache) SetUserIdentity(i *IdentityCache) error {
 	return nil
 }
 
+func (c *RepoCache) ClearUserIdentity() error {
+	c.muUserIdentity.Lock()
+	defer c.muUserIdentity.Unlock()
+
+	err := identity.ClearUserIdentity(c.repo)
+	if err != nil {
+		return err
+	}
+
+	c.userIdentityId = ""
+	return nil
+}
+
 func (c *RepoCache) GetUserIdentity() (*IdentityCache, error) {
 	c.muUserIdentity.RLock()
 	if c.userIdentityId != "" {
diff --git a/cache/repo_cache_test.go b/cache/repo_cache_test.go
index 07a3fee8..3c11220d 100644
--- a/cache/repo_cache_test.go
+++ b/cache/repo_cache_test.go
@@ -135,6 +135,39 @@ func TestCache(t *testing.T) {
 	_, err = cache.Bugs().ResolvePrefix(bug1.Id().String()[:10])
 	require.NoError(t, err)
 
+	require.Len(t, cache.bugs.cached, 1)
+	require.Len(t, cache.bugs.excerpts, 2)
+	require.Len(t, cache.identities.cached, 1)
+	require.Len(t, cache.identities.excerpts, 2)
+	require.Equal(t, uint64(2), indexCount(t, identity.Namespace))
+	require.Equal(t, uint64(2), indexCount(t, bug.Namespace))
+
+	// Remove + RemoveAll
+	err = cache.Identities().Remove(iden1.Id().String()[:10])
+	require.NoError(t, err)
+	err = cache.Bugs().Remove(bug1.Id().String()[:10])
+	require.NoError(t, err)
+	require.Len(t, cache.bugs.cached, 0)
+	require.Len(t, cache.bugs.excerpts, 1)
+	require.Len(t, cache.identities.cached, 0)
+	require.Len(t, cache.identities.excerpts, 1)
+	require.Equal(t, uint64(1), indexCount(t, identity.Namespace))
+	require.Equal(t, uint64(1), indexCount(t, bug.Namespace))
+
+	_, err = cache.Identities().New("René Descartes", "rene@descartes.fr")
+	require.NoError(t, err)
+	_, _, err = cache.Bugs().NewRaw(iden2, time.Now().Unix(), "title", "message", nil, nil)
+	require.NoError(t, err)
+
+	err = cache.RemoveAll()
+	require.NoError(t, err)
+	require.Len(t, cache.bugs.cached, 0)
+	require.Len(t, cache.bugs.excerpts, 0)
+	require.Len(t, cache.identities.cached, 0)
+	require.Len(t, cache.identities.excerpts, 0)
+	require.Equal(t, uint64(0), indexCount(t, identity.Namespace))
+	require.Equal(t, uint64(0), indexCount(t, bug.Namespace))
+
 	// Close
 	require.NoError(t, cache.Close())
 	require.Empty(t, cache.bugs.cached)
diff --git a/cache/subcache.go b/cache/subcache.go
index 7b599b10..aa9ae62d 100644
--- a/cache/subcache.go
+++ b/cache/subcache.go
@@ -34,6 +34,7 @@ type Actions[EntityT entity.Interface] struct {
 	ReadWithResolver    func(repo repository.ClockedRepo, resolvers entity.Resolvers, id entity.Id) (EntityT, error)
 	ReadAllWithResolver func(repo repository.ClockedRepo, resolvers entity.Resolvers) <-chan entity.StreamedEntity[EntityT]
 	Remove              func(repo repository.ClockedRepo, id entity.Id) error
+	RemoveAll           func(repo repository.ClockedRepo) error
 	MergeAll            func(repo repository.ClockedRepo, resolvers entity.Resolvers, remote string, mergeAuthor identity.Interface) <-chan entity.MergeResult
 }
 
@@ -399,7 +400,49 @@ func (sc *SubCache[EntityT, ExcerptT, CacheT]) Remove(prefix string) error {
 	delete(sc.excerpts, e.Id())
 	sc.lru.Remove(e.Id())
 
+	index, err := sc.repo.GetIndex(sc.namespace)
+	if err != nil {
+		sc.mu.Unlock()
+		return err
+	}
+
+	err = index.Remove(e.Id().String())
+	sc.mu.Unlock()
+	if err != nil {
+		return err
+	}
+
+	return sc.write()
+}
+
+func (sc *SubCache[EntityT, ExcerptT, CacheT]) RemoveAll() error {
+	sc.mu.Lock()
+
+	err := sc.actions.RemoveAll(sc.repo)
+	if err != nil {
+		sc.mu.Unlock()
+		return err
+	}
+
+	for id, _ := range sc.cached {
+		delete(sc.cached, id)
+		sc.lru.Remove(id)
+	}
+	for id, _ := range sc.excerpts {
+		delete(sc.excerpts, id)
+	}
+
+	index, err := sc.repo.GetIndex(sc.namespace)
+	if err != nil {
+		sc.mu.Unlock()
+		return err
+	}
+
+	err = index.Clear()
 	sc.mu.Unlock()
+	if err != nil {
+		return err
+	}
 
 	return sc.write()
 }