From 14229b1d2aee659fdee82051dde4f67420172970 Mon Sep 17 00:00:00 2001
From: Pedro Alvarez <pedro.alvarez@codethink.co.uk>
Date: Sun, 6 Mar 2016 20:36:44 +0000
Subject: Store artifacts and mark them as unbuilt

Change-Id: Id3cbbbadb0d78e8c12a9ba7b16c7bd517a0a3fc1
---
 gear/client.py | 50 +++++++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 47 insertions(+), 3 deletions(-)

diff --git a/gear/client.py b/gear/client.py
index 4ef06d26..561cd9a7 100644
--- a/gear/client.py
+++ b/gear/client.py
@@ -3,6 +3,13 @@ import sys
 import json
 import distbuild
 
+
+# Artifact build states. These are used to loosely track the state of the
+# remote cache.
+UNBUILT = 'not-built'
+BUILDING = 'building'
+BUILT = 'built'
+
 gear.Server()
 
 class aGearmanClient(gear.Client):
@@ -15,8 +22,17 @@ class aGearmanClient(gear.Client):
         job = super(aGearmanClient, self).handleWorkComplete(packet)
         print "workcomplete"
         self.finished = True
-        artifact = distbuild.decode_artifact_reference(job.data[-1])
-        print artifact.dependencies[0].dependencies
+        print "Decoding artifact received"
+        self.artifact = distbuild.decode_artifact_reference(job.data[-1])
+        print "Decoding artifact received done"
+        # Mark everything as unbuilt to begin with. We'll query the actua
+        # state from the cache in self._query_cache_state().
+        def set_initial_state(artifact):
+            artifact.state = UNBUILT
+        print "Setting them as unbuilt"
+        map_build_graph(self.artifact, set_initial_state)
+        print "Setting them as unbuilt done"
+
         return job
 
     def handleWorkData(self, packet):
@@ -39,6 +55,34 @@ class aGearmanClient(gear.Client):
         job = super(aGearmanClient, self).handleDisconnect(job)
         print "disconnect"
 
+
+
+def map_build_graph(artifact, callback, components=[]):
+    """Run callback on each artifact in the build graph and return result.
+
+    If components is given, then only look at the components given and
+    their dependencies. Also, return a list of the components after they
+    have had callback called on them.
+
+    """
+    result = []
+    mapped_components = []
+    done = set()
+    if components:
+        queue = list(components)
+    else:
+        queue = [artifact]
+    while queue:
+        a = queue.pop()
+        if a not in done:
+            result.append(callback(a))
+            queue.extend(a.dependencies)
+            done.add(a)
+            if a in components:
+                mapped_components.append(a)
+    return result, mapped_components
+
+
 client = aGearmanClient()
 client.addServer('localhost')
 client.waitForServer()  # Wait for at least one server to be connected
@@ -51,8 +95,8 @@ build_graph_request['system'] = "systems/minimal-system-x86_64-generic.morph"
 
 s=json.dumps(build_graph_request)
 
+print "Json produced: "
 print s
-print "json produced"
 
 job = gear.Job("build-graph", s)
 client.submitJob(job)
-- 
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