zen build cache service (#318)

- **EXPERIMENTAL** `zen builds`
  - Feature: `--zen-cache-host` option for `upload` and `download` operations to use a zenserver host `/builds` endpoint for storing build blob and blob metadata
  - Feature: New `/builds` endpoint for caching build blobs and blob metadata
    - `/builds/{namespace}/{bucket}/{buildid}/blobs/{hash}` `GET` and `PUT` method for storing and fetching blobs
    - `/builds/{namespace}/{bucket}/{buildid}/blobs/putBlobMetadata` `POST` method for storing metadata about blobs
    - `/builds/{namespace}/{bucket}/{buildid}/blobs/getBlobMetadata` `POST` method for fetching metadata about blobs
    - `/builds/{namespace}/{bucket}/{buildid}/blobs/exists` `POST` method for checking existance of blobs

1 files changed, 16 insertions, 0 deletions

diff --git a/src/zenserver/admin/admin.cpp b/src/zenserver/admin/admin.cpp
index 2888f5450..0da6e31ad 100644
--- a/src/zenserver/admin/admin.cpp
+++ b/src/zenserver/admin/admin.cpp
@@ -20,6 +20,7 @@
 #include <zenstore/cidstore.h>
 #include <zenstore/gc.h>
 
+#include <zenstore/buildstore/buildstore.h>
 #include <zenstore/cache/structuredcachestore.h>
 #include <zenutil/workerpools.h>
 #include "config.h"
@@ -105,6 +106,7 @@ HttpAdminService::HttpAdminService(GcScheduler&			   Scheduler,
 								   ZenCacheStore*		   CacheStore,
 								   CidStore*			   CidStore,
 								   ProjectStore*		   ProjectStore,
+								   BuildStore*			   BuildStore,
 								   const LogPaths&		   LogPaths,
 								   const ZenServerOptions& ServerOptions)
 : m_GcScheduler(Scheduler)
@@ -112,6 +114,7 @@ HttpAdminService::HttpAdminService(GcScheduler&			   Scheduler,
 , m_CacheStore(CacheStore)
 , m_CidStore(CidStore)
 , m_ProjectStore(ProjectStore)
+, m_BuildStore(BuildStore)
 , m_LogPaths(LogPaths)
 , m_ServerOptions(ServerOptions)
 {
@@ -306,6 +309,7 @@ HttpAdminService::HttpAdminService(GcScheduler&			   Scheduler,
 				Response << "Interval" << ToTimeSpan(State.Config.Interval);
 				Response << "MaxCacheDuration" << ToTimeSpan(State.Config.MaxCacheDuration);
 				Response << "MaxProjectStoreDuration" << ToTimeSpan(State.Config.MaxProjectStoreDuration);
+				Response << "MaxBuildStoreDuration" << ToTimeSpan(State.Config.MaxBuildStoreDuration);
 				Response << "CollectSmallObjects" << State.Config.CollectSmallObjects;
 				Response << "Enabled" << State.Config.Enabled;
 				Response << "DiskReserveSize" << NiceBytes(State.Config.DiskReserveSize);
@@ -401,6 +405,14 @@ HttpAdminService::HttpAdminService(GcScheduler&			   Scheduler,
 				}
 			}
 
+			if (auto Param = Params.GetValue("maxbuildstoreduration"); Param.empty() == false)
+			{
+				if (auto Value = ParseInt<uint64_t>(Param))
+				{
+					GcParams.MaxBuildStoreDuration = std::chrono::seconds(Value.value());
+				}
+			}
+
 			if (auto Param = Params.GetValue("disksizesoftlimit"); Param.empty() == false)
 			{
 				if (auto Value = ParseInt<uint64_t>(Param))
@@ -782,6 +794,10 @@ HttpAdminService::HttpAdminService(GcScheduler&			   Scheduler,
 			{
 				m_ProjectStore->Flush();
 			}
+			if (m_BuildStore)
+			{
+				m_BuildStore->Flush();
+			}
 			HttpReq.WriteResponse(HttpResponseCode::OK);
 		},
 		HttpVerb::kPost);