[Notes] [Git][BuildStream/buildstream][Qinusty/docs_changes] 133 commits: .gitlab-ci.yml: Use testsuite images for running tests

[Qinusty <gitlab mg gitlab com>]

Title: GitLab

Qinusty pushed to branch Qinusty/docs_changes at BuildStream / buildstream

Commits:

• 48f66a3c
  by Chandan Singh at 2018-07-18T18:03:31Z

  .gitlab-ci.yml: Use testsuite images for running tests
  
  Instead of re-using the user-facing `buildstream/buildstream-fedora`
  image for tests (that comes with BuildStream pre-installed), use
  `buildstream/testsuite-fedora` image that is supposed to be used
  exclusively for these tests.
  
  Similarly, use the dedicated `buildstream/testsuite-debian` image
  instead of `buildstream/buildstream-debian`.
  
  Fixes #458.
  
  For related discussion, see
  https://gitlab.com/BuildStream/buildstream-docker-images/issues/8.
  

• 1016dcb4
  by Josh Smith at 2018-07-19T12:52:21Z

  scheduler.py: Correct some anomalies within the docstrings
  

• 709b9bca
  by Francisco Redondo Marchena at 2018-07-19T14:03:12Z

  source-bundle: Enable --except option
  
  Before this option was listed in help but was ignored when
  creating the source-bundle.
  
  Issue #468
  

• 96d07153
  by Jordan Petridis at 2018-07-19T23:54:39Z

  Docs: Update the required build packages for fedora based systems.
  
  `ruamel.yaml` seems to require `Python.h` header file to build.
  
  `python3-devel` is what provides it for Fedora.
  

• 93a77c1d
  by Javier Jardón at 2018-07-19T23:58:28Z

  Docs: Update the required build packages for the rest of the systems
  
  Also remove the recomendation to install psutil as we need to build
  other python modules anyway (like ruamel)
  
  Completes 96d07153b7817cdaeda57dd163eed52b2b1b31e8
  

• 57e0d1c5
  by William Salmon at 2018-07-20T00:03:06Z

  Added dependency to the Docs
  
  These dependencies are needed to use the plugins that are installed
  as part of this guild.
  
  As the dependencies added are not dependencies of the core package
  they have been added to a separate section.
  
  The lzip package is needed to build gnome.
  https://wiki.gnome.org/Newcomers/BuildSystemComponent
  

• 1b6688eb
  by Javier Jardón at 2018-07-20T00:07:23Z

  install_linux_distro.rst: document plugins installed by default
  

• fc63b972
  by Javier Jardón at 2018-07-20T00:12:50Z

  install_linux_distro.rst: Document plugins deps for the rest of the systems
  

• 790fb40b
  by Tiago Gomes at 2018-07-20T09:07:01Z

  Update checkout man page for new --deps option
  

• 9c1f024b
  by Tiago Gomes at 2018-07-20T09:07:01Z

  Add support for creating a tarball on bst checkout
  
  One of the tests added is configured to be skipped for now, as dumping
  binary data is causing a bad descriptor exception when using the pytest
  capture module.
  
  Closes #263.
  

• 0ddbf0e0
  by Tristan Van Berkom at 2018-07-20T11:52:00Z

  setup.py: Specify minimum required version of pytest-cov plugin
  
  This causes the new artifact tests to pass (unless you happened
  to already have a recent enough version of pytest-cov, in which case
  you didn't notice the breakage).
  

• 6158ee5a
  by Sam Thursfield at 2018-07-20T13:17:14Z

  Fix crash when --debug is passed
  
  I hit the following backtrace running `bst --debug push` and `bst
  --debug build`:
  
      pid:16736 id:000[--:--:--][][] START   Push
      pid:16736 id:000[--:--:--][][] START   Loading pipeline
      pid:16736 id:000[00:00:00][][] SUCCESS Loading pipeline
      pid:16736 id:000[--:--:--][][] START   Resolving pipeline
      pid:16736 id:000[--:--:--][][] BUG     'MesonElement' object has no attribute '_Element__cache_key'
  
          Traceback (most recent call last):
            File "/home/sam/.local/bin/bst", line 8, in <module>
              sys.exit(cli())
            File "/home/sam/.local/lib/python3.6/site-packages/click/core.py", line 722, in __call__
              return self.main(*args, **kwargs)
            File "/home/sam/.local/lib/python3.6/site-packages/buildstream/_frontend/cli.py", line 162, in override_main
              standalone_mode=standalone_mode, **extra)
            File "/home/sam/.local/lib/python3.6/site-packages/click/core.py", line 697, in main
              rv = self.invoke(ctx)
            File "/home/sam/.local/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
              return _process_result(sub_ctx.command.invoke(sub_ctx))
            File "/home/sam/.local/lib/python3.6/site-packages/click/core.py", line 895, in invoke
              return ctx.invoke(self.callback, **ctx.params)
            File "/home/sam/.local/lib/python3.6/site-packages/click/core.py", line 535, in invoke
              return callback(*args, **kwargs)
            File "/home/sam/.local/lib/python3.6/site-packages/click/decorators.py", line 27, in new_func
              return f(get_current_context().obj, *args, **kwargs)
            File "/home/sam/.local/lib/python3.6/site-packages/buildstream/_frontend/cli.py", line 471, in push
              app.stream.push(elements, selection=deps, remote=remote)
            File "/home/sam/.local/lib/python3.6/site-packages/buildstream/_stream.py", line 341, in push
              fetch_subprojects=True)
            File "/home/sam/.local/lib/python3.6/site-packages/buildstream/_stream.py", line 814, in _load
              fetch_subprojects=fetch_subprojects)
            File "/home/sam/.local/lib/python3.6/site-packages/buildstream/_pipeline.py", line 119, in load
              for meta in meta_elements
            File "/home/sam/.local/lib/python3.6/site-packages/buildstream/_pipeline.py", line 119, in <listcomp>
              for meta in meta_elements
            File "/home/sam/.local/lib/python3.6/site-packages/buildstream/element.py", line 894, in _new_from_meta
              element = project.create_element(artifacts, meta)
            File "/home/sam/.local/lib/python3.6/site-packages/buildstream/_project.py", line 184, in create_element
              element = self._element_factory.create(self._context, self, artifacts, meta)
            File "/home/sam/.local/lib/python3.6/site-packages/buildstream/_elementfactory.py", line 57, in create
              return element_type(context, project, artifacts, meta, default_config)
            File "/home/sam/.local/lib/python3.6/site-packages/buildstream/element.py", line 196, in __init__
              super().__init__(meta.name, context, project, meta.provenance, "element")
            File "/home/sam/.local/lib/python3.6/site-packages/buildstream/plugin.py", line 171, in __init__
              self.debug("Created: {}".format(self))
            File "/home/sam/.local/lib/python3.6/site-packages/buildstream/plugin.py", line 407, in debug
              self.__message(MessageType.DEBUG, brief, detail=detail)
            File "/home/sam/.local/lib/python3.6/site-packages/buildstream/plugin.py", line 652, in __message
              self.__context.message(message)
            File "/home/sam/.local/lib/python3.6/site-packages/buildstream/_context.py", line 338, in message
              self._message_handler(message, context=self)
            File "/home/sam/.local/lib/python3.6/site-packages/buildstream/_frontend/app.py", line 665, in _message_handler
              text = self.logger.render(message)
            File "/home/sam/.local/lib/python3.6/site-packages/buildstream/_frontend/widget.py", line 585, in render
              return self._render(message)
            File "/home/sam/.local/lib/python3.6/site-packages/buildstream/_frontend/widget.py", line 620, in _render
              text += widget.render(message)
            File "/home/sam/.local/lib/python3.6/site-packages/buildstream/_frontend/widget.py", line 228, in render
              _, key, missing = plugin._get_display_key()
            File "/home/sam/.local/lib/python3.6/site-packages/buildstream/element.py", line 1138, in _get_display_key
              cache_key = self._get_cache_key()
            File "/home/sam/.local/lib/python3.6/site-packages/buildstream/element.py", line 991, in _get_cache_key
              return self.__cache_key
          AttributeError: 'MesonElement' object has no attribute '_Element__cache_key'
  
  The issue here is that when `--debug` is enabled, Plugin.__init__()
  tries to log a message like this:
  
          pid:16929 id:001[--:--:--][????????][ main:tracker.bst                   ] DEBUG   Created: meson element at tracker.bst [line 1 column 0]
  
  The log formatter is trying to get the cache key of the element in
  order to show it in the log, but the attribute hasn't yet been set
  because we've not got to the Element() constructor.
  

• f484ab4f
  by Phillip Smyth at 2018-07-20T14:29:44Z

  Updating .bzr plugin to omit the .bzr dir
  
  Fixes issue #455
  

• b662f175
  by Tristan Van Berkom at 2018-07-20T14:29:44Z

  git source plugin: Omit the .git directory completely.
  
  This will break builds which use `git describe` to determine
  their version number until a more elegant solution is implemented,
  and will unblock work on caching of build trees in the artifacts.
  
  Fixes issue #455
  

• 80effb5c
  by Tristan Van Berkom at 2018-07-22T08:30:40Z

  HACKING.rst: No longer requiring issue numbers in commit messages.
  
  Instead, we are enabling the merge commit feature in gitlab and
  hopefully reducing some of the friction in review this way.
  

• c7124c3d
  by Tristan Van Berkom at 2018-07-22T09:46:05Z

  HACKING.rst: Added convention for naming of branches in merge requests.
  

• 282b1092
  by Tristan Van Berkom at 2018-07-23T08:47:36Z

  plugins/sources/git.py: Use --shared instead of --hardlinks
  
  This improves staging performance by avoiding making any
  copies of the objects in the cloned repository in the staging
  area before removing the .git directory.
  
  Fixes #488
  

• fe0df616
  by Tristan Van Berkom at 2018-07-23T09:20:44Z

  Merge branch 'tristan/git-stage-with-shared-clone' into 'master'
  
  plugins/sources/git.py: Use --shared instead of --hardlinks
  
  Closes #488
  
  See merge request BuildStream/buildstream!557

• 6559db4c
  by Josh Smith at 2018-07-23T09:22:39Z

  element.py: Make Element._get_brief_display_key() available to Internal API
  
  This change will allow for more detailed info messages throughout
  the CASCache.
  

• 6b82e476
  by Josh Smith at 2018-07-23T09:22:39Z

  cascache.py: Add push info detailing which remote is being pushed to
  
  Work towards fixing issue #275
  

• 1d36df25
  by Josh Smith at 2018-07-23T09:22:39Z

  cascache.py: Add pull info detailing which remote is being pulled from
  
  Work towards fixing issue #275
  

• 364706f3
  by Tristan Van Berkom at 2018-07-23T09:57:02Z

  Merge branch 'Qinusty/275' into 'master'
  
  Indicate where artifacts are going to and coming from in the log
  
  Closes #275
  
  See merge request BuildStream/buildstream!553

• e70237a5
  by Phillip Smyth at 2018-07-23T13:26:47Z

  Adding caching build trees
  
  buildstream/element.py: Adding build tree to cache
  buildstream/_versions.py: Bumping BST_CORE_ARTIFACT_VERSION
  

• 335afb5b
  by Tristan Van Berkom at 2018-07-23T14:07:07Z

  Merge branch 'caching_build_trees_limited' into 'master'
  
  Adding caching build trees (limited)
  
  See merge request BuildStream/buildstream!560

• 60290f31
  by Javier Jardón at 2018-07-23T15:29:37Z

  doc/source/install_linux_distro.rst: buildstream doesn't depend on ostree or pygobject anymore
  

• de162e43
  by Javier Jardón at 2018-07-24T11:58:16Z

  Merge branch 'jjardon/ostree_repo' into 'master'
  
  doc/source/install_linux_distro.rst: buildstream doesn't hard depend on ostree or pygobject anymore
  
  Closes #492
  
  See merge request BuildStream/buildstream!558

• 6106d657
  by Josh Smith at 2018-07-25T10:50:14Z

  cascache.py: Remove misleading info message
  
  This addresses issue #501.
  

• 4a637d63
  by Jonathan Maw at 2018-07-25T12:05:19Z

  Merge branch 'Qinusty/501' into 'master'
  
  Remove misleading info message
  
  See merge request BuildStream/buildstream!567

• a0ad985f
  by Phil Dawson at 2018-07-25T13:03:23Z

  tests/frontend/show.py: Add test case for maximum recursion depth being exceeded
  
  Add test to ensure gracefull handling of exception thrown while loading
  a pipeline due the python's max recursion depth being exceeded.
  
  This is part of the work for issue #203
  

• 95b4eae4
  by Phil Dawson at 2018-07-25T13:03:23Z

  app.py: Handle exception thrown when recursion limit is exceeded
  
  Because the RecursionError exception was introduced in Python 3.5, until we
  drop support for for Python 3.4, we must use RuntimeError.
  

• 889bf238
  by Jim MacArthur at 2018-07-25T13:43:21Z

  Merge branch 'phil/203-BuildStream-crashes-when-dependency-tree-too-deep' into 'master'
  
  Phil/203 BuildStream crashes when dependency tree too deep
  
  See merge request BuildStream/buildstream!512

• 54fee6c8
  by Phillip Smyth at 2018-07-25T14:15:36Z

  _stream.py: Added functionality for workspace open -f
  
  tests/frontend/workspace.py: Added tests
  

• f62b6cb7
  by Jonathan Maw at 2018-07-25T15:01:33Z

  Merge branch 'bst_workspace_open_force_does_nothing' into 'master'
  
  _stream.py: Added functionality for workspace open -f
  
  See merge request BuildStream/buildstream!549

• c049d021
  by Ed Baunton at 2018-07-25T19:43:51Z

  Add remote source plugin
  
  Add a plugin that supports downloading files verbatim from a source with
  an optional overridable filename and destination directory. Bumps bst
  format version to 10.
  
  Fixes #163
  

• bd1196ef
  by Ed Baunton at 2018-07-26T13:22:52Z

  Provide explicit reason for SourceError exception on path
  
  When the user provides a path for the filename parameter, provide a reason
  

• 9a46c16f
  by Ed Baunton at 2018-07-26T14:06:52Z

  Merge branch 'edbaunton/remote-source' into 'master'
  
  Add remote source plugin
  
  Closes #163
  
  See merge request BuildStream/buildstream!541

• 7ceacfea
  by William Salmon at 2018-07-26T14:32:49Z

  Documentation typos and fixes
  
  Daniel went through the Doc's etc and made a list of suggestions.
  These are the result of the most easily patched suggestions and
  one or two thing that I noticed as well.
  

• 8c9fd9e4
  by Javier Jardón at 2018-07-26T15:32:16Z

  Merge branch 'willsalmon/documentation_form_notes' into 'master'
  
  Documentation typos and fixes
  
  See merge request BuildStream/buildstream!569

• 9ebd7fe1
  by Josh Smith at 2018-07-27T04:41:26Z

  _exceptions.py: Modify BstError API to allow optional retry
  
  job.py: Changes to the logic surrounding retry attempts and child process return codes
  element.py, source.py: ElementError and SourceError also implement this change.
  
  These exceptions now have an optional parameter of temporary which defaults to false. This will potentially break
  backwards compatibility where exceptions were previously raised and a retry was intended.
  
  To trigger a retry, one must now raise their SourceError or ElementError with temporary=True.
  
  This aims to fix #397.
  

• ca224425
  by Josh Smith at 2018-07-27T04:41:26Z

  _downloadablefilesource.py: Update network errors to be temporary
  
  This follows the change in 67ecd97a05279a3b7570ad59f05bf0a5973ef04c.
  

• 0a7cfcdf
  by Josh Smith at 2018-07-27T04:41:26Z

  tests/sources: deb, tar and zip all test for retry behaviour
  
  This is following 5d6418a06a3a0262df5f6b9e6e1a36578515fd4a where
  DownloadableFileSource was modified to raise 'temporary'
  errors when relating to file downloading.
  

• 9b2bc78f
  by Josh Smith at 2018-07-27T04:41:26Z

  cascache.py: Update cache push/pull errors to be temporary
  
  Further work needs to be done for the current grpc exceptions which are reraised.
  

• 4986527f
  by Josh Smith at 2018-07-27T04:41:26Z

  plugin.py: Extend Plugin.call() API
  
  Plugin.call() now takes fail_temporarily as an optional parameter,
  when supplied it will cause subsequent failures to trigger temporary
  errors as opposed to permanent errors.
  
  This also extends Plugin.check_output() which makes use of Plugin.call()
  

• a9a1048e
  by Josh Smith at 2018-07-27T04:41:26Z

  git.py: Update git plugin to fail temporarily on clone failures
  
  The git plugin will now make use of the fail_temporarily parameter
  to Plugin.call(), allowing failures to trigger a retry.
  

• aa071cb6
  by Tristan Van Berkom at 2018-07-27T06:13:53Z

  Merge branch 'tristan/temporary-failures' into 'master'
  
  Temorary failures
  
  Closes #397
  
  See merge request BuildStream/buildstream!574

• 4d86e7c5
  by Tristan Van Berkom at 2018-07-27T06:43:48Z

  element.py, source.py, plugin.py: Adjusting API version since annotations.
  
  Since we backported the temporary/permanent failures patch for #397
  into the `bst-1.2` branch, we need to adjust the since versions in master
  down to 1.2.
  

• fb222ba1
  by Josh Smith at 2018-07-27T08:50:45Z

  cascache.py: Raise ArtifactError on grpc error
  
  This aims to fix issue #502.
  

• 48916b8a
  by Tristan Maat at 2018-07-27T10:22:41Z

  Merge branch 'Qinusty/502' into 'master'
  
  cascache.py: Raise ArtifactError on grpc error
  
  Closes #502
  
  See merge request BuildStream/buildstream!576

• 23e080b9
  by James Ennis at 2018-07-27T11:13:50Z

  README.md: Minor corrections
  

• 196cfffc
  by James Ennis at 2018-07-27T11:13:50Z

  README.md: Direct users towards the tutorial before existing projects:
  
    This patch also removes displaying the projects that live within
    the buildstream-examples repository, as we wish to deprecate this
    repo and migrate the two examples.
    - #438 and #439
  
    In addition to this, both examples do not 'build' in their current
    state.
  

• 2b93574e
  by James Ennis at 2018-07-27T11:13:50Z

  main_install.rst: Add note to refer Windows and macOS users to docker
  

• 63e2320e
  by Josh Smith at 2018-07-27T11:16:55Z

  .gitignore: Ignore .pytest_cache/
  

• 6ea97b17
  by Javier Jardón at 2018-07-27T11:54:20Z

  Merge branch 'jennis/doc_improvements' into 'master'
  
  Refer readers to our tutorial before referring them to existing bst projects
  
  See merge request BuildStream/buildstream!578

• 8b46e874
  by Jonathan Maw at 2018-07-27T12:24:56Z

  project: Parse and store mirrors
  

• a2e9c62a
  by Jonathan Maw at 2018-07-27T12:24:56Z

  Move _ALIAS_SEPARATOR into utils
  
  The separator is useful in source files other than _project.py
  

• 7c993ac0
  by Jonathan Maw at 2018-07-27T12:24:56Z

  source: Store the url aliases or use an override
  
  This is part of a later plan to implement mirroring without forcing
  everyone to update their sources. We use the expected calls to
  Source.translate_url() when running Source.configure() to extract the
  aliases from the URL. Multiple aliases must be extracted because
  sources exist that may fetch from multiple aliases (for example, git
  submodules)
  
  Later, we want to substitute another URI where the alias normally reads
  from the project - We accomplish this by re-instantiating the Source
  with the alias overrides passed as an argument to the constructor.
  

• 2889003c
  by Jonathan Maw at 2018-07-27T12:24:56Z

  source: When fetching, try to fetch from mirrors first
  
  **KLUDGE WARNING**: This involves making the source store its "meta"
  object so that it's possible to create a copy of the source inside the
  fetch queue, instead of back when the pipeline was being loaded.
  
  This adds the SourceFetcher class, which is intended for sources that
  fetch from multiple URLs (e.g. the git source and its submodules)
  
  Fix when fetching
  

• f81e8e7b
  by Jonathan Maw at 2018-07-27T12:24:56Z

  Set default mirror via command-line or user config
  
  In user config (buildstream.conf), it is set with the "default-mirror"
  field.
  
  On the command-line, it is set with "--default-mirror"
  

• 755ed898
  by Jonathan Maw at 2018-07-27T12:24:56Z

  Add mirrored source tracking
  

• 19c01a56
  by Jonathan Maw at 2018-07-27T12:24:56Z

  bzr.py: Improve mirror support
  
  This fixes:
  * Bzr repositories pulling from the branch they were created with.
  * Bzr's _ensure_mirror() not actually checking that it successfully
    mirrored the ref.
  

• 84872141
  by Jonathan Maw at 2018-07-27T12:24:56Z

  git.py: Improve mirror support
  
  When implementing fetching from mirrors, I encountered some problems
  with the git source:
  
  1. The mirror URL was using translate_url()'s output, so if a different
     alias was used, then fetching from the mirror would go to a different
     directory, and be inaccessible.
  2. After fixing that, fetching was unable to pull from a URL other than
     the one used at repository creation, meaning it wouldn't actually
     pull from the mirror.
  

• bd51a0b2
  by Jonathan Maw at 2018-07-27T12:24:56Z

  testutils: Add a helper to copy a testutils repo
  
  This is helpful if you want to test what happens when you have one repo
  that has diverged from another. By copying the repo you're sure they
  start with shared history.
  
  This is especially useful when mirroring.
  

• 909120ab
  by Jonathan Maw at 2018-07-27T12:24:56Z

  tests: Add mirrored fetching and tracking tests
  

• 1cbc2e17
  by Jonathan Maw at 2018-07-27T12:24:56Z

  doc: Add documentation for source mirroring
  

• 202d9d26
  by Jonathan Maw at 2018-07-27T12:24:56Z

  NEWS: Add item for source mirroring
  

• 2b23898d
  by Jonathan Maw at 2018-07-27T12:24:56Z

  doc: Add tutorials for setting up git and tar mirrors
  

• bd4d0355
  by Jonathan Maw at 2018-07-27T13:08:00Z

  Merge branch '328-support-for-downloading-sources-from-mirrors' into 'master'
  
  Resolve "Support for downloading sources from mirrors"
  
  Closes #328
  
  See merge request BuildStream/buildstream!404

• cb4693b2
  by Josh Smith at 2018-07-27T14:00:26Z

  Merge branch 'Qinusty/pytest_cache_gitignore'
  

• 8a96679a
  by Josh Smith at 2018-07-27T14:01:07Z

  Merge branch 'master' of gitlab.com:BuildStream/buildstream
  

• f5c8ff61
  by Josh Smith at 2018-07-27T14:10:45Z

  _context.py: Cache size is now restricted to available disk space
  
  This address issue #491.
  
  When attempting to run buildstream with a configuration specifying
  a cache quota larger than your available disk space, buildstream
  will alert the user and exit.
  
  Note:
  This takes into consideration your current cache usage and
  therefore restricts the overall size of your artifact cache folder.
  

• 32ddb544
  by Qinusty at 2018-07-27T14:57:30Z

  Merge branch 'Qinusty/491' into 'master'
  
  Cache quota is now restricted to available disk space
  
  See merge request BuildStream/buildstream!563

• cb8c99e5
  by Tristan Maat at 2018-07-29T07:52:06Z

  buildelement.py: Only display one activity message (#507)
  

• 08b7562b
  by Tristan Van Berkom at 2018-07-29T10:23:43Z

  Merge branch '507-some-log-lines-appear-to-be-duplicates' into 'master'
  
  Resolve "Some log lines appear to be duplicates"
  
  Closes #507
  
  See merge request BuildStream/buildstream!573

• 3b7158b3
  by Tristan Van Berkom at 2018-07-29T10:25:02Z

  source.py: Bring down since version for source mirroring APIs
  
  Since we have now backported this to `bst-1.2`, the APIs have
  been introduced in 1.2 and not 1.4
  

• e84f8b24
  by Tristan Van Berkom at 2018-07-29T10:25:02Z

  NEWS: Bring down since version of backported features to 1.1.5
  
  These features will be released in 1.1.5 since they have been
  backported, lets reflect this in the NEWS file in master.
  
  Also this adds the backported `remote` plugin to the NEWS
  

• df18d38c
  by Tristan Van Berkom at 2018-07-29T10:26:08Z

  git.py: Handle concurrent download completions properly
  
  Use os.rename() to rename the cloned temporary repository into
  place in the source cache, and issue a STATUS message when discarding
  a duplicate clone, in the case where the same repository is cloned
  twice in parallel.
  
  The problem with using shutil.move() is that it will create the source
  directory in a subdirectory of the destination when the destination
  exists, so it's behavior depends on whether the destination exists.
  
  This shutil.move() behavior has so far hidden the race condition
  where a duplicate repo is created in a subdirectory, as you need
  to have three concurrent downloads of the same repo in order to
  trigger the error.
  
  This fixes issue #503
  

• 92714b03
  by Tristan Van Berkom at 2018-07-29T11:18:52Z

  Merge branch 'tristan/fix-spurious-errors' into 'master'
  
  git.py: Handle concurrent download completions properly
  
  Closes #503
  
  See merge request BuildStream/buildstream!583

• 8568d272
  by Phil Dawson at 2018-07-30T07:58:07Z

  examples: add project demonstrating a junction element
  
  This is part of the work towards #437.
  

• efa24e7e
  by Phil Dawson at 2018-07-30T07:58:07Z

  junctions.run: Add terminal session output for junctions walkthrough.
  
  This is part of the work towards #437.
  

• bf175bf7
  by Phil Dawson at 2018-07-30T07:58:07Z

  junction-elements.rst: Add junctions walkthrough
  
  This is part of the work towards #437.
  

• e8931048
  by James Ennis at 2018-07-30T07:58:07Z

  using_advanced_features.rst: Added file
  

• b4f25190
  by Phil Dawson at 2018-07-30T07:58:07Z

  tests/examples/junctions.py: Add tests for junctions walkthrough
  
  This is part of the work towards issue #437.
  

• aff76ae9
  by Phil Dawson at 2018-07-30T09:15:49Z

  Merge branch 'phil/437-junction-tutorial' into 'master'
  
  Phil/437 junction tutorial
  
  See merge request BuildStream/buildstream!550

• c313ad17
  by Tom Pollard at 2018-07-30T10:57:49Z

  widget.py: Limit failure summary to currently failing elements
  
  Change widget.py print_summary() to only print the failure
  messages of elements in the Failure Summary that failed on the
  current try.
  

• 4a3def5c
  by Tristan Maat at 2018-07-30T11:47:21Z

  Merge branch 'tpollard/386' into 'master'
  
  widget.py: Limit failure summary to currently failing elements
  
  See merge request BuildStream/buildstream!561

• 34015a26
  by Tristan Maat at 2018-07-30T12:19:45Z

  HACKING.rst: Add note about asking for dev permissions
  

• ae47a72b
  by Tristan Van Berkom at 2018-07-30T13:11:34Z

  Merge branch 'tlater/ask-for-dev-permissions' into 'master'
  
  HACKING.rst: Add note about asking for dev permissions
  
  See merge request BuildStream/buildstream!587

• 695c0cb0
  by Phil Dawson at 2018-07-30T16:07:36Z

  junction-elements.rst: Add missing language specifier to literalinclude
  
  A missing language specifier on a literal include directive results in yaml
  being rendered as python code. This commit adds the :language: tag to that
  directive.
  

• fcb87b0a
  by Phil Dawson at 2018-07-30T16:53:37Z

  Merge branch 'phil/fixup-junctions-tutorial' into 'master'
  
  junction-elements.rst: Add missing language specifier to literalinclude
  
  See merge request BuildStream/buildstream!591

• 3d308894
  by Richard Maw at 2018-07-31T16:31:36Z

  element.py: Cache the result of checking whether an artifact is cached weakly
  
  Normally we'd only need it in the case of scheduling a weakly cached build,
  but to allow caching of failed builds we need to be able to distinguish
  between cached successes and cached failures
  for both strong and weak cache keys.
  
  To allow other cache lookup codepaths to look up via the weak key
  requires changes through the call stack to consult which key to use,
  and cache invalidation of the saved state when it changes.
  

• b3a68e28
  by Richard Maw at 2018-07-31T16:31:36Z

  element.py: Add metadata to distinguish between successful and failed builds
  
  This just puts the metadata in place,
  we're adding code paths to add failed builds later.
  

• f4573df3
  by Richard Maw at 2018-07-31T16:31:36Z

  Convert call-sites of Element._cached() that assume success
  
  When we later add cached failures it needs to not treat them as successes.
  

• 553df108
  by Richard Maw at 2018-07-31T16:31:36Z

  _frontend/widget.py: Render cached failures differently to successes
  

• d14d8ee2
  by Richard Maw at 2018-07-31T16:32:35Z

  Cache failed builds
  
  This creates an artifact when element assembly fails too,
  and if it's the right kind of exception uses the now-included install directory
  similarly to if it had returned successfully.
  
  If there's a failure during install the artifact contains any installed files,
  but may contain nothing at all.
  

• d83122bb
  by Richard Maw at 2018-07-31T16:32:35Z

  _scheduler/queues/buildqueue.py: Skip rebuilding cached failures
  
  This flags up a failure and if run in an interactive prompt
  permits the user to attempt a rebuild.
  

• 78944e9a
  by Richard Maw at 2018-07-31T16:32:35Z

  tests: Add tests for cached behaviours
  

• 3fa79d8d
  by Richard Maw at 2018-07-31T16:32:35Z

  _scheduler/queues: Add failed builds to "done" queue
  
  This allows the scheduler to move jobs from the current queue to the next.
  
  As a result of this change later queues than the build queue
  mustn't skip a cached failure, so the logic is specialised to build queues only.
  

• e8cd43dc
  by Richard Maw at 2018-07-31T16:32:58Z

  NEWS: Describe caching of failures
  
  Closes #76.
  

• 88cd61ea
  by knownexus at 2018-07-31T16:32:58Z

  Added the missing `_get_build_log` function
  

• 4fc1f5d1
  by Phillip Smyth at 2018-07-31T17:17:34Z

  Merge branch 'richardmaw/cache-fail' into 'master'
  
  Store failed builds in the cache
  
  Closes #76
  
  See merge request BuildStream/buildstream!475

• 6cd3df09
  by Phil Dawson at 2018-08-01T08:05:45Z

  doc/sessions: Add terminal sessions for use in workspaces tutorial
  
  This is part of the the work towards issue #437
  

• 8c0522ad
  by Phil Dawson at 2018-08-01T08:05:45Z

  Add project for workspaces tutorial
  
  This is part of the work towards issue #437
  

• dc60b713
  by Phil Dawson at 2018-08-01T08:05:45Z

  tutorials: Add workspaces tutorial
  
  This is part of the work towards issue #437
  

• bf8c3dfb
  by Phil Dawson at 2018-08-01T08:05:45Z

  testutils/patch.py: Add methods for applying and removing patches
  

• b69783d4
  by Phil Dawson at 2018-08-01T08:05:45Z

  tests/examples/developing.py: Add tests for workspaces walkthrough
  

• 480565c2
  by Phil Dawson at 2018-08-01T09:04:26Z

  Merge branch 'phil/437-workspaces-tutorial' into 'master'
  
  Phil/437 workspaces tutorial
  
  Closes #437
  
  See merge request BuildStream/buildstream!519

• 87edf67e
  by Martin Blanchard at 2018-08-01T11:07:05Z

  complete.py: Ensure paths get completed from 'element-path'
  
  Element paths should always be completed from the root element folder
  defined by the element-path key in project.conf. Fix complete_path() to
  always search into its given base_directory argument.
  
  See issue BuildStream/buildstream#448
  

• d10e4668
  by Phillip Smyth at 2018-08-01T12:05:40Z

  Merge branch 'mablanch/448-autocompletion-broken-defaults' into 'master'
  
  Fix autocompletion for elements in sub-folders
  
  See merge request BuildStream/buildstream!592

• 6aedc57b
  by Jim MacArthur at 2018-08-01T12:07:32Z

  Add BST_VIRTUAL_DIRECTORY flag for element plugins
  

• 1d3af84d
  by Jim MacArthur at 2018-08-01T12:07:32Z

  utils.py: add getmtime() and magic_timestamp
  
  magic_timestamp is moved into file scope so other classes
  can use it.
  

• 4397e45a
  by Jim MacArthur at 2018-08-01T12:07:32Z

  Sandbox.py: Rename __root to _root.
  
  This is to allow to allow its use by subclasses.
  
  Since access to get_directories is now blocked for some plugins,
  and the subclasses of Sandbox do not have configuration defined
  by YAML files, they need another way to get at the root directory.
  

• 9bf343cf
  by Jim MacArthur at 2018-08-01T12:07:32Z

  Add the virtual directory class 'Directory' and one implementation.
  
  buildstream/storage/Directory.py: New file.
  buildstream/storage/_filebaseddirectory.py: New file.
  buildstream/_exceptions.py: New VIRTUAL_FS exception source.
  

• f124dfec
  by Jim MacArthur at 2018-08-01T12:07:32Z

  storage: Add __init__.py
  

• 42bdce0b
  by Jim MacArthur at 2018-08-01T12:07:32Z

  sandbox.py: Add function to get virtual directory.
  

• fe1a3428
  by Jim MacArthur at 2018-08-01T12:07:33Z

  _stream.py: Convert to virtual directories.
  
  This removes _add_directory_to_tarfile since it is now implemented in
  _filebaseddirectory.py.
  

• 849724ce
  by Jim MacArthur at 2018-08-01T12:07:33Z

  element.py: Conversion to use virtual directories
  

• 270325b4
  by Jim MacArthur at 2018-08-01T12:07:33Z

  plugins/elements/compose.py: Convert to virtual directories
  

• a8c71ba4
  by Jim MacArthur at 2018-08-01T12:07:33Z

  plugins/elements/import.py: Convert to virtual directories
  

• 4e6a9049
  by Jim MacArthur at 2018-08-01T12:07:33Z

  sandbox: Remove instances of get_directory
  
  sandbox/_mount.py, sandbox/_sandboxbwrap.py:
    Remove instances of get_directory
  

• e69f2b23
  by Jim MacArthur at 2018-08-01T12:07:33Z

  plugins/elements/stack.py: Convert to virtual directories
  

• 6877b6fc
  by Jim MacArthur at 2018-08-01T12:07:33Z

  scriptelement.py: Convert to virtual directories
  

• 8edf1f80
  by Jim MacArthur at 2018-08-01T12:07:33Z

  compose.py: Remove unused getmtime()
  

• 02c6c846
  by Jim MacArthur at 2018-08-01T12:07:33Z

  sandbox.py: Use _root in _has_command
  
  This will need more attention when we bring in another virtual
  directory backend, however, we've said it is acceptable for the
  sandbox itself to access the underlying directory, and this is
  the best fix in the meantime.
  

• eabc3899
  by Jim MacArthur at 2018-08-01T13:16:04Z

  Merge branch 'jmac/virtual_directories' into 'master'
  
  Abstract directory class and filesystem-backed implementation
  
  See merge request BuildStream/buildstream!445

• 60ddb193
  by Josh Smith at 2018-08-01T14:17:17Z

  message.py: MessagesType.SKIPPED added
  

• 0756c615
  by Josh Smith at 2018-08-01T14:17:17Z

  cascache.py: Display SKIPPED message for each remote skipped
  

• 62a250fe
  by Qinusty at 2018-08-01T15:01:25Z

  Merge branch 'Qinusty/481' into 'master'
  
  Add SKIPPED message type for actions being skipped
  
  See merge request BuildStream/buildstream!562

• 00ddcbd7
  by Martin Blanchard at 2018-08-01T15:16:33Z

  element.py: Raise an exception on unbuilt element checkout
  
  Trying to checkout an element that has no cached artifacts should be and
  handled failure. See BuildStream/buildstream#447.
  

• 4c739e2a
  by Martin Blanchard at 2018-08-01T15:16:33Z

  _stream.py: Print details on checkout failure
  

• 4a4fed7a
  by Qinusty at 2018-08-01T16:14:50Z

  Merge branch 'mablanch/447-stack-trace-checkout' into 'master'
  
  Handle checkout failure for unbuilt elements
  
  See merge request BuildStream/buildstream!590

• 547d20b2
  by Phil Dawson at 2018-08-01T16:31:08Z

  install_linux_distro.rst: Add install instructons for Ubuntu
  
  This commit is part of the work required to resolve issue #436
  

• 592c9061
  by Javier Jardón at 2018-08-01T17:28:05Z

  Merge branch 'phil/436-add-ubuntu-install-intructions' into 'master'
  
  Add Ubuntu install intructions
  
  Closes #436
  
  See merge request BuildStream/buildstream!525

• 97e18808
  by Josh Smith at 2018-08-02T09:06:16Z

  HACKING.rst: Add running a single test example
  

30 changed files:

• .gitignore
• .gitlab-ci.yml
• HACKING.rst
• NEWS
• README.rst
• buildstream/__init__.py
• buildstream/_artifactcache/cascache.py
• buildstream/_context.py
• buildstream/_exceptions.py
• buildstream/_frontend/app.py
• buildstream/_frontend/cli.py
• buildstream/_frontend/complete.py
• buildstream/_frontend/widget.py
• buildstream/_loader/loader.py
• buildstream/_message.py
• buildstream/_pipeline.py
• buildstream/_project.py
• buildstream/_scheduler/jobs/job.py
• buildstream/_scheduler/queues/buildqueue.py
• buildstream/_scheduler/queues/queue.py
• buildstream/_scheduler/scheduler.py
• buildstream/_stream.py
• buildstream/_versions.py
• buildstream/buildelement.py
• buildstream/element.py
• buildstream/plugin.py
• buildstream/plugins/elements/compose.py
• buildstream/plugins/elements/import.py
• buildstream/plugins/elements/stack.py
• buildstream/plugins/sources/_downloadablefilesource.py

The diff was not included because it is too large.

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