browser: parse browser history using browserexport (#216)

* browser: parse browser history using browserexport

from seanbreckenridge/HPI module:
1fba8ccf2f/my/browser/export.py

my/browser/all.py

@@ -0,0 +1,35 @@
+from typing import Iterator
+
+from my.core import Stats
+from my.core.source import import_source
+from browserexport.merge import merge_visits, Visit
+
+
+src_export = import_source(module_name="my.browser.export")
+src_active = import_source(module_name="my.browser.active_browser")
+
+
+@src_export
+def _visits_export() -> Iterator[Visit]:
+    from . import export
+    return export.history()
+
+
+@src_active
+def _visits_active() -> Iterator[Visit]:
+    from . import active_browser
+    return active_browser.history()
+
+
+# NOTE: you can comment out the sources you don't need
+def history() -> Iterator[Visit]:
+    yield from merge_visits([
+        _visits_active(),
+        _visits_export(),
+    ])
+
+
+def stats() -> Stats:
+    from my.core import stat
+
+    return {**stat(history)}