[gnome-continuous-yocto/gnomeostree-3.28-rocko: 1507/8267] bitbake: toaster: lsupdates Add layerindex fetcher

[Emmanuele Bassi <ebassi src gnome org>]

commit ffc78d329d6fed9ae9a0db470d30033069b42f8f
Author: Michael Wood <michael g wood intel com>
Date:   Thu Jul 21 14:43:26 2016 +0100

    bitbake: toaster: lsupdates Add layerindex fetcher
    
    Move and refactor the layerindex layer source update mechanism so that
    we don't have to track the layerindex objects in the toaster database.
    Move this out of the orm and into the management command.
    
    Paves the way for future improvement to allow you to specify a layer
    index server as an argument to the command.
    
    (Bitbake rev: f83527edc6d52a34cd73a9c3650ee484407e2e0c)
    
    Signed-off-by: Michael Wood <michael g wood intel com>
    Signed-off-by: Elliot Smith <elliot smith intel com>
    Signed-off-by: Richard Purdie <richard purdie linuxfoundation org>

 .../toaster/orm/management/commands/lsupdates.py   |  251 +++++++++++++++++++-
 1 files changed, 245 insertions(+), 6 deletions(-)
---
diff --git a/bitbake/lib/toaster/orm/management/commands/lsupdates.py 
b/bitbake/lib/toaster/orm/management/commands/lsupdates.py
index 75e9513..89ee53e 100644
--- a/bitbake/lib/toaster/orm/management/commands/lsupdates.py
+++ b/bitbake/lib/toaster/orm/management/commands/lsupdates.py
@@ -1,12 +1,251 @@
-from django.core.management.base import NoArgsCommand, CommandError
-from orm.models import LayerSource
+#
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+#
+# BitBake Toaster Implementation
+#
+# Copyright (C) 2016        Intel Corporation
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+from django.core.management.base import NoArgsCommand
+
+from orm.models import LayerSource, Layer, Release, Layer_Version
+from orm.models import LayerVersionDependency, Machine, Recipe
+
 import os
+import json
+import logging
+logger = logging.getLogger("toaster")
+
+DEFAULT_LAYERINDEX_SERVER = "http://layers.openembedded.org/layerindex/api/";
+
 
 class Command(NoArgsCommand):
-    args    = ""
-    help    = "Updates locally cached information from all LayerSources"
+    args = ""
+    help = "Updates locally cached information from a layerindex server"
+
+    def update(self):
+        """
+            Fetches layer, recipe and machine information from a layerindex
+            server
+        """
+
+        self.apiurl = DEFAULT_LAYERINDEX_SERVER
+
+        assert self.apiurl is not None
+        try:
+            from urllib.request import urlopen, URLError
+            from urllib.parse import urlparse
+        except ImportError:
+            from urllib2 import urlopen, URLError
+            from urlparse import urlparse
+
+        proxy_settings = os.environ.get("http_proxy", None)
+        oe_core_layer = 'openembedded-core'
+
+        def _get_json_response(apiurl=DEFAULT_LAYERINDEX_SERVER):
+            _parsedurl = urlparse(apiurl)
+            path = _parsedurl.path
+
+            # logger.debug("Fetching %s", apiurl)
+            try:
+                res = urlopen(apiurl)
+            except URLError as e:
+                raise Exception("Failed to read %s: %s" % (path, e.reason))
+
+            return json.loads(res.read().decode('utf-8'))
+
+        # verify we can get the basic api
+        try:
+            apilinks = _get_json_response()
+        except Exception as e:
+            import traceback
+            if proxy_settings is not None:
+                logger.info("EE: Using proxy %s" % proxy_settings)
+            logger.warning("EE: could not connect to %s, skipping update:"
+                           "%s\n%s" % (self.apiurl, e, traceback.format_exc()))
+            return
+
+        # update branches; only those that we already have names listed in the
+        # Releases table
+        whitelist_branch_names = [rel.branch_name
+                                  for rel in Release.objects.all()]
+        if len(whitelist_branch_names) == 0:
+            raise Exception("Failed to make list of branches to fetch")
+
+        logger.debug("Fetching branches")
+
+        # keep a track of the id mappings so that layer_versions can be created
+        # for these layers later on
+        li_layer_id_to_toaster_layer_id = {}
+
+        # We may need this? TODO
+        #branches_info = _get_json_response(apilinks['branches'] +
+        #                                   "?filter=name:%s"
+        #                                   % "OR".join(whitelist_branch_names))
+
+        # update layers
+        layers_info = _get_json_response(apilinks['layerItems'])
+
+        for li in layers_info:
+            # Special case for the openembedded-core layer
+            if li['name'] == oe_core_layer:
+                try:
+                    # If we have an existing openembedded-core for example
+                    # from the toasterconf.json augment the info using the
+                    # layerindex rather than duplicate it
+                    oe_core_l = Layer.objects.get(name=oe_core_layer)
+                    # Take ownership of the layer as now coming from the
+                    # layerindex
+                    oe_core_l.summary = li['summary']
+                    oe_core_l.description = li['description']
+                    oe_core_l.save()
+                    li_layer_id_to_toaster_layer_id[li['id']] = oe_core_l.pk
+                    continue
+
+                except Layer.DoesNotExist:
+                    pass
+
+            l, created = Layer.objects.get_or_create(name=li['name'])
+            l.up_date = li['updated']
+            l.vcs_url = li['vcs_url']
+            l.vcs_web_url = li['vcs_web_url']
+            l.vcs_web_tree_base_url = li['vcs_web_tree_base_url']
+            l.vcs_web_file_base_url = li['vcs_web_file_base_url']
+            l.summary = li['summary']
+            l.description = li['description']
+            l.save()
+
+            li_layer_id_to_toaster_layer_id[li['id']] = l.pk
+
+        # update layerbranches/layer_versions
+        logger.debug("Fetching layer information")
+        layerbranches_info = _get_json_response(
+            apilinks['layerBranches'] + "?filter=branch__name:%s" %
+            "OR".join(whitelist_branch_names))
+
+        # Map Layer index layer_branch object id to
+        # layer_version toaster object id
+        li_layer_branch_id_to_toaster_lv_id = {}
+
+        for lbi in layerbranches_info:
+
+            try:
+                lv, created = Layer_Version.objects.get_or_create(
+                    layer_source=LayerSource.TYPE_LAYERINDEX,
+                    layer=Layer.objects.get(
+                        pk=li_layer_id_to_toaster_layer_id[lbi['layer']])
+                )
+            except KeyError:
+                print("No such layerindex layer referenced by layerbranch %d" %
+                      lbi['layer'])
+                continue
+
+            lv.up_date = lbi['updated']
+            lv.commit = lbi['actual_branch']
+            lv.dirpath = lbi['vcs_subdir']
+            lv.save()
+
+            li_layer_branch_id_to_toaster_lv_id[lbi['id']] =\
+                lv.pk
+
+        # update layer dependencies
+        layerdependencies_info = _get_json_response(
+            apilinks['layerDependencies'] +
+            "?filter=layerbranch__branch__name:%s" %
+            "OR".join(whitelist_branch_names))
+
+        dependlist = {}
+        for ldi in layerdependencies_info:
+            try:
+                lv = Layer_Version.objects.get(
+                    pk=li_layer_branch_id_to_toaster_lv_id[ldi['layerbranch']])
+            except Layer_Version.DoesNotExist as e:
+                continue
+
+            if lv not in dependlist:
+                dependlist[lv] = []
+            try:
+                layer_id = li_layer_id_to_toaster_layer_id[ldi['dependency']]
+
+                dependlist[lv].append(
+                    Layer_Version.objects.get(
+                        layer_source=LayerSource.TYPE_LAYERINDEX,
+                        layer__pk=layer_id))
+
+            except Layer_Version.DoesNotExist:
+                logger.warning("Cannot find layer version (ls:%s),"
+                               "up_id:%s lv:%s" %
+                               (self, ldi['dependency'], lv))
+
+        for lv in dependlist:
+            LayerVersionDependency.objects.filter(layer_version=lv).delete()
+            for lvd in dependlist[lv]:
+                LayerVersionDependency.objects.get_or_create(layer_version=lv,
+                                                             depends_on=lvd)
+
+        # update machines
+        logger.debug("Fetching machine information")
+        machines_info = _get_json_response(
+            apilinks['machines'] + "?filter=layerbranch__branch__name:%s" %
+            "OR".join(whitelist_branch_names))
+
+        for mi in machines_info:
+            mo, created = Machine.objects.get_or_create(
+                name=mi['name'],
+                layer_version=Layer_Version.objects.get(
+                    pk=li_layer_branch_id_to_toaster_lv_id[mi['layerbranch']]))
+            mo.up_date = mi['updated']
+            mo.name = mi['name']
+            mo.description = mi['description']
+            mo.save()
+
+        # update recipes; paginate by layer version / layer branch
+        logger.debug("Fetching target information")
+        recipes_info = _get_json_response(
+            apilinks['recipes'] + "?filter=layerbranch__branch__name:%s" %
+            "OR".join(whitelist_branch_names))
+
+        for ri in recipes_info:
+            try:
+                lv_id = li_layer_branch_id_to_toaster_lv_id[ri['layerbranch']]
+                lv = Layer_Version.objects.get(pk=lv_id)
+
+                ro, created = Recipe.objects.get_or_create(
+                    layer_version=lv,
+                    name=ri['pn']
+                )
 
+                ro.layer_version = lv
+                ro.up_date = ri['updated']
+                ro.name = ri['pn']
+                ro.version = ri['pv']
+                ro.summary = ri['summary']
+                ro.description = ri['description']
+                ro.section = ri['section']
+                ro.license = ri['license']
+                ro.homepage = ri['homepage']
+                ro.bugtracker = ri['bugtracker']
+                ro.file_path = ri['filepath'] + "/" + ri['filename']
+                if 'inherits' in ri:
+                    ro.is_image = 'image' in ri['inherits'].split()
+                else:  # workaround for old style layer index
+                    ro.is_image = "-image-" in ri['pn']
+                ro.save()
+            except Exception as e:
+                logger.debug("Failed saving recipe %s", e)
 
     def handle_noargs(self, **options):
-        for ls in LayerSource.objects.all():
-            ls.update()
+            self.update()