Reorganize the webUI and API code

Included in the changes:
- create a new /api root package to hold all API code, migrate /graphql in there
- git API handlers all use the cache instead of the repo directly
- git API handlers are now tested
- git API handlers now require a "repo" mux parameter
- lots of untangling of API/handlers/middleware
- less code in commands/webui.go

2 files changed, 18 insertions, 8 deletions

diff --git a/cache/multi_repo_cache.go b/cache/multi_repo_cache.go
index a55bbcce..726558d9 100644
--- a/cache/multi_repo_cache.go
+++ b/cache/multi_repo_cache.go
@@ -13,32 +13,32 @@ type MultiRepoCache struct {
 	repos map[string]*RepoCache
 }
 
-func NewMultiRepoCache() MultiRepoCache {
-	return MultiRepoCache{
+func NewMultiRepoCache() *MultiRepoCache {
+	return &MultiRepoCache{
 		repos: make(map[string]*RepoCache),
 	}
 }
 
 // RegisterRepository register a named repository. Use this for multi-repo setup
-func (c *MultiRepoCache) RegisterRepository(ref string, repo repository.ClockedRepo) error {
+func (c *MultiRepoCache) RegisterRepository(ref string, repo repository.ClockedRepo) (*RepoCache, error) {
 	r, err := NewRepoCache(repo)
 	if err != nil {
-		return err
+		return nil, err
 	}
 
 	c.repos[ref] = r
-	return nil
+	return r, nil
 }
 
 // RegisterDefaultRepository register a unnamed repository. Use this for mono-repo setup
-func (c *MultiRepoCache) RegisterDefaultRepository(repo repository.ClockedRepo) error {
+func (c *MultiRepoCache) RegisterDefaultRepository(repo repository.ClockedRepo) (*RepoCache, error) {
 	r, err := NewRepoCache(repo)
 	if err != nil {
-		return err
+		return nil, err
 	}
 
 	c.repos[""] = r
-	return nil
+	return r, nil
 }
 
 // DefaultRepo retrieve the default repository
diff --git a/cache/repo_cache.go b/cache/repo_cache.go
index 4a6b007f..92760bbb 100644
--- a/cache/repo_cache.go
+++ b/cache/repo_cache.go
@@ -142,6 +142,16 @@ func (c *RepoCache) GetUserEmail() (string, error) {
 	return c.repo.GetUserEmail()
 }
 
+// ReadData will attempt to read arbitrary data from the given hash
+func (c *RepoCache) ReadData(hash git.Hash) ([]byte, error) {
+	return c.repo.ReadData(hash)
+}
+
+// StoreData will store arbitrary data and return the corresponding hash
+func (c *RepoCache) StoreData(data []byte) (git.Hash, error) {
+	return c.repo.StoreData(data)
+}
+
 func (c *RepoCache) lock() error {
 	lockPath := repoLockFilePath(c.repo)