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Differential D5039

core.loader: Allow vcs loaders to deal with not_found status
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Authored by ardumont on Feb 8 2021, 5:02 PM.

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Reviewers
anlambert
Group Reviewers
Reviewers
Maniphest Tasks
T3030: Improve loaders to deal with new visit status events
Commits
rDLDBASE945ff242b5b7: core.loader: Allow vcs loaders to deal with not_found status
Summary

This will allow git, mercurial or svn loader implementations to mark the visit status as
not_found when such event occurs (e.g failing to to remotely communicate with the remote
server, archive not found, etc...).

Technically, this opens a means to trap a NotFound exception from the main loop. Which
finalize the visit and mark its status as "not_found".

Depends on D5035
Related to T3030

Diff Detail

Repository
rDLDBASE Generic VCS/Package Loader
Branch
update-visit-status
Lint
No Linters Available
Unit
No Unit Test Coverage
Build Status
Buildable 19097
Build 29610: Phabricator diff pipeline on jenkinsJenkins console · Jenkins
Build 29609: arc lint + arc unit

Event Timeline

ardumont created this revision.Feb 8 2021, 5:02 PM
Herald added a reviewer: Reviewers. · View Herald TranscriptFeb 8 2021, 5:02 PM
swh-public-ci added a comment.Feb 8 2021, 5:04 PM

Build is green

Patch application report for D5039 (id=17975)

Could not rebase; Attempt merge onto 4500063a2f...

Updating 4500063..30ed737
Fast-forward
 swh/loader/core/loader.py                        | 24 ++++++++--
 swh/loader/core/tests/test_loader.py             | 56 +++++++++++++++++++-----
 swh/loader/exception.py                          | 13 ++++++
 swh/loader/package/loader.py                     | 14 +++++-
 swh/loader/package/nixguix/loader.py             | 47 +++++++++++---------
 swh/loader/package/nixguix/tests/test_nixguix.py | 32 ++++++++++----
 swh/loader/package/npm/loader.py                 |  2 +-
 swh/loader/package/npm/tests/test_npm.py         | 11 +++++
 swh/loader/package/pypi/loader.py                |  2 +-
 swh/loader/package/pypi/tests/test_pypi.py       | 11 +++++
 swh/loader/package/tests/test_utils.py           |  5 ++-
 swh/loader/package/utils.py                      |  7 +--
 12 files changed, 174 insertions(+), 50 deletions(-)
 create mode 100644 swh/loader/exception.py
Changes applied before test
commit 30ed7379b512f141ced87dc0ec3ecf94e3dc47ae
Author: Antoine R. Dumont (@ardumont) <ardumont@softwareheritage.org>
Date:   Mon Feb 8 17:00:54 2021 +0100

    core.loader: Allow vcs loaders to deal with not_found status
    
    Related to T3030

commit 1756bc0ba8ee2e9c08e172f11b7fc87a082c04ff
Author: Antoine R. Dumont (@ardumont) <ardumont@softwareheritage.org>
Date:   Fri Feb 5 17:43:24 2021 +0100

    package: Mark visit as not_found when relevant
    
    Related to T3030

commit fb7ee4332b0dc7889d950309dec9a4ecf57453b5
Author: Antoine R. Dumont (@ardumont) <ardumont@softwareheritage.org>
Date:   Fri Feb 5 12:59:29 2021 +0100

    core: Mark visit status as failed when relevant
    
    When a visit ends up with no snapshot within the exception block, mark the visit as
    failed. Otherwise, let it be a partial visit.
    
    Related to T3030

See https://jenkins.softwareheritage.org/job/DLDBASE/job/tests-on-diff/360/ for more details.

Harbormaster completed remote builds in B19096: Diff 17975.Feb 8 2021, 5:04 PM
ardumont requested review of this revision.Feb 8 2021, 5:04 PM
ardumont updated this revision to Diff 17976.Feb 8 2021, 5:06 PM

Mention in the prepare method's docstring the possibility of raising the NotFound
exception.

swh-public-ci added a comment.Feb 8 2021, 5:08 PM

Build is green

Patch application report for D5039 (id=17976)

Could not rebase; Attempt merge onto 4500063a2f...

Updating 4500063..30ed737
Fast-forward
 swh/loader/core/loader.py                        | 24 ++++++++--
 swh/loader/core/tests/test_loader.py             | 56 +++++++++++++++++++-----
 swh/loader/exception.py                          | 13 ++++++
 swh/loader/package/loader.py                     | 14 +++++-
 swh/loader/package/nixguix/loader.py             | 47 +++++++++++---------
 swh/loader/package/nixguix/tests/test_nixguix.py | 32 ++++++++++----
 swh/loader/package/npm/loader.py                 |  2 +-
 swh/loader/package/npm/tests/test_npm.py         | 11 +++++
 swh/loader/package/pypi/loader.py                |  2 +-
 swh/loader/package/pypi/tests/test_pypi.py       | 11 +++++
 swh/loader/package/tests/test_utils.py           |  5 ++-
 swh/loader/package/utils.py                      |  7 +--
 12 files changed, 174 insertions(+), 50 deletions(-)
 create mode 100644 swh/loader/exception.py
Changes applied before test
commit 30ed7379b512f141ced87dc0ec3ecf94e3dc47ae
Author: Antoine R. Dumont (@ardumont) <ardumont@softwareheritage.org>
Date:   Mon Feb 8 17:00:54 2021 +0100

    core.loader: Allow vcs loaders to deal with not_found status
    
    Related to T3030

commit 1756bc0ba8ee2e9c08e172f11b7fc87a082c04ff
Author: Antoine R. Dumont (@ardumont) <ardumont@softwareheritage.org>
Date:   Fri Feb 5 17:43:24 2021 +0100

    package: Mark visit as not_found when relevant
    
    Related to T3030

commit fb7ee4332b0dc7889d950309dec9a4ecf57453b5
Author: Antoine R. Dumont (@ardumont) <ardumont@softwareheritage.org>
Date:   Fri Feb 5 12:59:29 2021 +0100

    core: Mark visit status as failed when relevant
    
    When a visit ends up with no snapshot within the exception block, mark the visit as
    failed. Otherwise, let it be a partial visit.
    
    Related to T3030

See https://jenkins.softwareheritage.org/job/DLDBASE/job/tests-on-diff/361/ for more details.

Harbormaster completed remote builds in B19097: Diff 17976.Feb 8 2021, 5:08 PM
ardumont updated this revision to Diff 17979.Feb 8 2021, 5:20 PM

Actually, really mention in the prepare method's docstring the possibility of raising
the NotFound exception.

swh-public-ci added a comment.Feb 8 2021, 5:23 PM

Build is green

Patch application report for D5039 (id=17979)

Could not rebase; Attempt merge onto 4500063a2f...

Updating 4500063..ed1fec6
Fast-forward
 swh/loader/core/loader.py                        | 27 ++++++++++--
 swh/loader/core/tests/test_loader.py             | 56 +++++++++++++++++++-----
 swh/loader/exception.py                          | 13 ++++++
 swh/loader/package/loader.py                     | 14 +++++-
 swh/loader/package/nixguix/loader.py             | 47 +++++++++++---------
 swh/loader/package/nixguix/tests/test_nixguix.py | 32 ++++++++++----
 swh/loader/package/npm/loader.py                 |  2 +-
 swh/loader/package/npm/tests/test_npm.py         | 11 +++++
 swh/loader/package/pypi/loader.py                |  2 +-
 swh/loader/package/pypi/tests/test_pypi.py       | 11 +++++
 swh/loader/package/tests/test_utils.py           |  5 ++-
 swh/loader/package/utils.py                      |  7 +--
 12 files changed, 177 insertions(+), 50 deletions(-)
 create mode 100644 swh/loader/exception.py
Changes applied before test
commit ed1fec6a464a805828f78b5eb98bde6304f2b400
Author: Antoine R. Dumont (@ardumont) <ardumont@softwareheritage.org>
Date:   Mon Feb 8 17:00:54 2021 +0100

    core.loader: Allow vcs loaders to deal with not_found status
    
    Related to T3030

commit 1756bc0ba8ee2e9c08e172f11b7fc87a082c04ff
Author: Antoine R. Dumont (@ardumont) <ardumont@softwareheritage.org>
Date:   Fri Feb 5 17:43:24 2021 +0100

    package: Mark visit as not_found when relevant
    
    Related to T3030

commit fb7ee4332b0dc7889d950309dec9a4ecf57453b5
Author: Antoine R. Dumont (@ardumont) <ardumont@softwareheritage.org>
Date:   Fri Feb 5 12:59:29 2021 +0100

    core: Mark visit status as failed when relevant
    
    When a visit ends up with no snapshot within the exception block, mark the visit as
    failed. Otherwise, let it be a partial visit.
    
    Related to T3030

See https://jenkins.softwareheritage.org/job/DLDBASE/job/tests-on-diff/362/ for more details.

Harbormaster completed remote builds in B19100: Diff 17979.Feb 8 2021, 5:23 PM
anlambert added a subscriber: anlambert.Feb 8 2021, 5:24 PM
anlambert added inline comments.
swh/loader/core/loader.py
348

I think you should return {"status": "failed"} after that line. or maybe I am missing something here ?

swh/loader/core/tests/test_loader.py
228–231

You can remove that if you return the failed status after catching the NotFound exception.

anlambert added inline comments.Feb 8 2021, 5:30 PM
swh/loader/core/loader.py
334–366

These two exception code blocks are quite similar, you could merge them into one and test on the exception type to modify status and log message.

ardumont added inline comments.Feb 8 2021, 5:49 PM
swh/loader/core/loader.py
334–366

it crossed my mind.

I did not act on it as i'm always wondering whether that's within the scope of that diff or with another one about refactoring ¯\_(ツ)_/¯

348

I'm not totally sure about this. That status is about the task and not the visit.
Currently, it's rendering status "uneventful" which is also true.

The thing is, i think with status "failed", the scheduler will schedule it back and
decrement the retries_left counter?

anlambert added inline comments.Feb 8 2021, 5:54 PM
swh/loader/core/loader.py
334–366

I think yo can do it in that diff, you just have to modify the original Exception block and change statuses if the exception type is NotFound,

348

Ah right, I got mistaken by the test that overrides load_status.

ardumont added inline comments.Feb 8 2021, 6:09 PM
swh/loader/core/tests/test_loader.py
228–231

Yes, i mislead myself here ¯\_(ツ)_/¯
(and thus you as well... sorry)

It should have been uneventful to be consistent with the actual runtime behavior.

ardumont updated this revision to Diff 17982.Feb 8 2021, 6:12 PM

Adapt according to review:

  • Fix misleading test
  • Merge the try: catch (Exception, NotFound) instructions.

Thanks!

swh-public-ci added a comment.Feb 8 2021, 6:14 PM

Build is green

Patch application report for D5039 (id=17982)

Could not rebase; Attempt merge onto 4500063a2f...

Updating 4500063..3abaf74
Fast-forward
 swh/loader/core/loader.py                        | 22 +++++++---
 swh/loader/core/tests/test_loader.py             | 56 +++++++++++++++++++-----
 swh/loader/exception.py                          | 13 ++++++
 swh/loader/package/loader.py                     | 14 +++++-
 swh/loader/package/nixguix/loader.py             | 47 +++++++++++---------
 swh/loader/package/nixguix/tests/test_nixguix.py | 32 ++++++++++----
 swh/loader/package/npm/loader.py                 |  2 +-
 swh/loader/package/npm/tests/test_npm.py         | 11 +++++
 swh/loader/package/pypi/loader.py                |  2 +-
 swh/loader/package/pypi/tests/test_pypi.py       | 11 +++++
 swh/loader/package/tests/test_utils.py           |  5 ++-
 swh/loader/package/utils.py                      |  7 +--
 12 files changed, 170 insertions(+), 52 deletions(-)
 create mode 100644 swh/loader/exception.py
Changes applied before test
commit 3abaf7443724f8c45d02281e9937920dc5861cf7
Author: Antoine R. Dumont (@ardumont) <ardumont@softwareheritage.org>
Date:   Mon Feb 8 17:00:54 2021 +0100

    core.loader: Allow vcs loaders to deal with not_found status
    
    Related to T3030

commit 1756bc0ba8ee2e9c08e172f11b7fc87a082c04ff
Author: Antoine R. Dumont (@ardumont) <ardumont@softwareheritage.org>
Date:   Fri Feb 5 17:43:24 2021 +0100

    package: Mark visit as not_found when relevant
    
    Related to T3030

commit fb7ee4332b0dc7889d950309dec9a4ecf57453b5
Author: Antoine R. Dumont (@ardumont) <ardumont@softwareheritage.org>
Date:   Fri Feb 5 12:59:29 2021 +0100

    core: Mark visit status as failed when relevant
    
    When a visit ends up with no snapshot within the exception block, mark the visit as
    failed. Otherwise, let it be a partial visit.
    
    Related to T3030

See https://jenkins.softwareheritage.org/job/DLDBASE/job/tests-on-diff/363/ for more details.

Harbormaster completed remote builds in B19103: Diff 17982.Feb 8 2021, 6:14 PM
anlambert accepted this revision.Feb 8 2021, 6:22 PM
anlambert added inline comments.
swh/loader/core/tests/test_loader.py
228–231

Is the load_status override really needed here ? This should already return the uneventful status if I am not wrong.

This revision is now accepted and ready to land.Feb 8 2021, 6:22 PM
ardumont added inline comments.Feb 8 2021, 7:09 PM
swh/loader/core/tests/test_loader.py
228–231

unsure, i think i added because otherwise, it'd be "eventful" (default implem ¯\_(ツ)_/¯).
I'll check ;)

ardumont edited the summary of this revision. (Show Details)Feb 11 2021, 8:42 AM
ardumont edited the summary of this revision. (Show Details)Feb 11 2021, 8:59 AM
ardumont added a parent revision: D5035: package: Mark visit as not_found when relevant.
ardumont edited the summary of this revision. (Show Details)Feb 11 2021, 9:04 AM
ardumont updated this revision to Diff 18041.Feb 11 2021, 9:04 AM

Rebase and improve again the diff description

swh-public-ci added a comment.Feb 11 2021, 9:06 AM

Build has FAILED

Patch application report for D5039 (id=18041)

Could not rebase; Attempt merge onto 4500063a2f...

Updating 4500063..db02dfd
Fast-forward
 swh/loader/core/loader.py                        | 22 +++++++---
 swh/loader/core/tests/test_loader.py             | 56 +++++++++++++++++++-----
 swh/loader/exception.py                          | 13 ++++++
 swh/loader/package/loader.py                     | 18 +++++++-
 swh/loader/package/nixguix/loader.py             | 47 +++++++++++---------
 swh/loader/package/nixguix/tests/test_nixguix.py | 37 ++++++++++++----
 swh/loader/package/npm/loader.py                 |  2 +-
 swh/loader/package/npm/tests/test_npm.py         | 11 +++++
 swh/loader/package/pypi/loader.py                |  2 +-
 swh/loader/package/pypi/tests/test_pypi.py       | 11 +++++
 swh/loader/package/tests/test_utils.py           |  5 ++-
 swh/loader/package/utils.py                      |  7 +--
 12 files changed, 179 insertions(+), 52 deletions(-)
 create mode 100644 swh/loader/exception.py
Changes applied before test
commit db02dfd32e1436ee3156eb3abbc6b99e461a7c1b
Author: Antoine R. Dumont (@ardumont) <ardumont@softwareheritage.org>
Date:   Mon Feb 8 17:00:54 2021 +0100

    core.loader: Allow vcs loaders to deal with not_found status
    
    Related to T3030

commit a0c55d15400bc0348aa8f859e44a4b644c950317
Author: Antoine R. Dumont (@ardumont) <ardumont@softwareheritage.org>
Date:   Fri Feb 5 17:43:24 2021 +0100

    package: Mark visit as not_found when relevant
    
    If any errors happen during the communication with the origin to retrieve package
    information, the visit fails and its status is marked as not_found.
    
    Only pypi, npm and nixguix package loaders are impacted. The other loaders do not read
    anything from their url so there is no way to trigger such possibility.
    
    Note that the nixguix loader got refactored to avoid the side-effect of reading data out
    of the url within the constructor. It was necessary so the check fails and the visit
    status is dealt with as described. Also, this unifies it with how pypi and npm loaders
    deals with the url communication.
    
    Related to T3030

commit fb7ee4332b0dc7889d950309dec9a4ecf57453b5
Author: Antoine R. Dumont (@ardumont) <ardumont@softwareheritage.org>
Date:   Fri Feb 5 12:59:29 2021 +0100

    core: Mark visit status as failed when relevant
    
    When a visit ends up with no snapshot within the exception block, mark the visit as
    failed. Otherwise, let it be a partial visit.
    
    Related to T3030

Link to build: https://jenkins.softwareheritage.org/job/DLDBASE/job/tests-on-diff/365/
See console output for more information: https://jenkins.softwareheritage.org/job/DLDBASE/job/tests-on-diff/365/console

Harbormaster failed remote builds in B19154: Diff 18041!Feb 11 2021, 9:06 AM
ardumont updated this revision to Diff 18043.Feb 11 2021, 9:11 AM

Rebase

swh-public-ci added a comment.Feb 11 2021, 9:14 AM

Build is green

Patch application report for D5039 (id=18043)

Could not rebase; Attempt merge onto 4500063a2f...

Updating 4500063..945ff24
Fast-forward
 swh/loader/core/loader.py                        | 22 +++++++---
 swh/loader/core/tests/test_loader.py             | 56 +++++++++++++++++++-----
 swh/loader/exception.py                          | 13 ++++++
 swh/loader/package/loader.py                     | 18 +++++++-
 swh/loader/package/nixguix/loader.py             | 47 +++++++++++---------
 swh/loader/package/nixguix/tests/test_nixguix.py | 37 ++++++++++++----
 swh/loader/package/npm/loader.py                 |  2 +-
 swh/loader/package/npm/tests/test_npm.py         | 11 +++++
 swh/loader/package/pypi/loader.py                |  2 +-
 swh/loader/package/pypi/tests/test_pypi.py       | 11 +++++
 swh/loader/package/tests/test_utils.py           |  5 ++-
 swh/loader/package/utils.py                      |  7 +--
 12 files changed, 179 insertions(+), 52 deletions(-)
 create mode 100644 swh/loader/exception.py
Changes applied before test
commit 945ff242b5b7d038060f9382c682f2ed9c8f3b8a
Author: Antoine R. Dumont (@ardumont) <ardumont@softwareheritage.org>
Date:   Mon Feb 8 17:00:54 2021 +0100

    core.loader: Allow vcs loaders to deal with not_found status
    
    This will allow git, mercurial or svn loader implementations to mark the visit status as
    not_found when such event occurs (e.g failing to to remotely communicate with the remote
    server, archive not found, etc...).
    
    Technically, this opens a means to trap a NotFound exception from the main loop. Which
    finalize the visit and mark its status as "not_found".
    
    Related to T3030

commit 96b949cf5121948dbd4aefa1657b25264e8a5202
Author: Antoine R. Dumont (@ardumont) <ardumont@softwareheritage.org>
Date:   Fri Feb 5 17:43:24 2021 +0100

    package: Mark visit as not_found when relevant
    
    If any errors happen during the communication with the origin to retrieve package
    information, the visit fails and its status is marked as not_found.
    
    Only pypi, npm and nixguix package loaders are impacted. The other loaders do not read
    anything from their url so there is no way to trigger such possibility.
    
    Note that the nixguix loader got refactored to avoid the side-effect of reading data out
    of the url within the constructor. It was necessary so the check fails and the visit
    status is dealt with as described. Also, this unifies it with how pypi and npm loaders
    deals with the url communication.
    
    Related to T3030

commit fb7ee4332b0dc7889d950309dec9a4ecf57453b5
Author: Antoine R. Dumont (@ardumont) <ardumont@softwareheritage.org>
Date:   Fri Feb 5 12:59:29 2021 +0100

    core: Mark visit status as failed when relevant
    
    When a visit ends up with no snapshot within the exception block, mark the visit as
    failed. Otherwise, let it be a partial visit.
    
    Related to T3030

See https://jenkins.softwareheritage.org/job/DLDBASE/job/tests-on-diff/367/ for more details.

Harbormaster completed remote builds in B19156: Diff 18043.Feb 11 2021, 9:14 AM
Closed by commit rDLDBASE945ff242b5b7: core.loader: Allow vcs loaders to deal with not_found status (authored by ardumont). · Explain WhyFeb 11 2021, 10:50 AM
This revision was automatically updated to reflect the committed changes.
ardumont added a commit: rDLDBASE945ff242b5b7: core.loader: Allow vcs loaders to deal with not_found status.

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swh/
loader/
core/
16 lines81%
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tests/
25 lines97%
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Diff 17976

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swh/loader/core/loader.py

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