Return each work item as created, instead of list

This makes it possible to do smoother progress reporting.

2 files changed, 8 insertions, 9 deletions

diff --git a/fsck-larch b/fsck-larch
index 9afe00d..aef6647 100755
--- a/fsck-larch
+++ b/fsck-larch
@@ -51,11 +51,11 @@ class Fsck(cliapp.Application):
             forest = larch.open_forest(dirname=dirname)
             fsck = larch.fsck.Fsck(forest, self.warning, self.error, 
                                    self.settings['fix'])
-            fsck.find_work()
+            all_work = list(fsck.find_work())
             
-            self.ts['checks'] = len(fsck.work)
+            self.ts['checks'] = len(all_work)
             self.ts['check'] = 0
-            for work in fsck.work:
+            for work in all_work:
                 self.ts['check'] += 1
                 self.ts['checkname'] = str(work)
                 work.do()
diff --git a/larch/fsck.py b/larch/fsck.py
index 3a633fb..3554d95 100755
--- a/larch/fsck.py
+++ b/larch/fsck.py
@@ -220,18 +220,17 @@ class Fsck(object):
         self.warning = warning
         self.error = error
         self.fix = fix
-        self.work = []
 
     def find_work(self):
         for node_id in self.forest.node_store.list_nodes():
             tracing.trace('found node %s' % node_id)
-            self.work.append(CheckNode(self, node_id))
+            yield CheckNode(self, node_id)
         for tree in self.forest.trees:
-            self.work.append(CheckRoot(self, tree.root.id))
+            yield CheckRoot(self, tree.root.id)
         extra = CheckExtraNodes(self)
         for tree in self.forest.trees:
-            self.work.append(CheckRecursively(self, tree.root.id, extra.seen))
-        self.work.append(extra)
+            yield CheckRecursively(self, tree.root.id, extra.seen)
+        yield extra
         if self.fix:
-            self.work.append(CommitForest(self))
+            yield CommitForest(self)