cylc-flow

cycling-workflows cylc job-scheduler metascheduler python scheduler scheduling workflow workflow-automation workflow-engine workflow-management

Score: 23.488500195023878

Last synced: about 6 hours ago
JSON representation

Repository metadata:

Cylc: a general purpose workflow engine with a gift for cycling

Host: GitHub
URL: https://github.com/cylc/cylc-flow
Owner: cylc
License: gpl-3.0
Created: 2011-06-02T08:31:49.000Z (about 15 years ago)
Default Branch: master
Last Pushed: 2026-08-06T17:48:02.000Z (7 days ago)
Last Synced: 2026-08-08T02:49:41.706Z (5 days ago)
Topics: cycling-workflows, cylc, job-scheduler, metascheduler, python, scheduler, scheduling, workflow, workflow-automation, workflow-engine, workflow-management
Language: Python
Homepage: https://cylc.github.io
Size: 128 MB
Stars: 379
Watchers: 12
Forks: 104
Open Issues: 617
Metadata Files:
- Readme: README.md
- Changelog: CHANGES.md
- Contributing: CONTRIBUTING.md
- License: COPYING
- Security: SECURITY.md

Owner metadata:

Name: The Cylc Workflow Engine
Login: cylc
Email: hilary.oliver@niwa.co.nz
Kind: organization
Description: A workflow engine for cycling systems.
Website: https://cylc.github.io
Location: Wellington, New Zealand
Twitter:
Company:
Icon url: https://avatars.githubusercontent.com/u/824878?v=4
Repositories: 20
Last Synced at: 2024-03-26T02:12:47.259Z
Profile URL: https://github.com/cylc

GitHub Events

Total

Create event: 153
Delete event: 158
Fork event: 5
Issue comment event: 1326
Issues event: 329
Pull request event: 704
Pull request review comment event: 1427
Pull request review event: 1947
Push event: 437
Release event: 9
Watch event: 32
Total: 6527

Last Year

Create event: 48
Delete event: 58
Fork event: 2
Issue comment event: 261
Issues event: 98
Pull request event: 173
Pull request review comment event: 250
Pull request review event: 401
Push event: 146
Release event: 1
Watch event: 10
Total: 1448

Committers metadata

Last synced: 1 day ago

Total Commits: 15,549
Total Committers: 57
Avg Commits per committer: 272.789
Development Distribution Score (DDS): 0.474

Commits in past year: 389
Committers in past year: 15
Avg Commits per committer in past year: 25.933
Development Distribution Score (DDS) in past year: 0.699

Name	Email	Commits
Hilary Oliver	h**r@g**m	8171
Oliver Sanders	o**s@m**k	1649
Ronnie Dutta	r**a@m**k	1111
Matt Shin	m**n@m**k	1001
Tim Pillinger	t**r@m**k	875
Ben Fitzpatrick	b**k@m**k	645
Andrew Clark	a**k@m**k	425
Bruno Kinoshita	k**w@a**g	343
Mel Hall	m**l@m**k	250
David Sutherland	d**d@n**z	210
Sadie Bartholomew	s**w@m**k	138
github-actions[bot]	g**s@n**m	93
Declan Valters	d**s@e**k	83
Martin Ryan	m**n@b**u	76
dependabot[bot]	4****]	54
Tomek Trzeciak	t**k@m**k	51
Tim Whitcomb	t**b@n**l	44
Prasanna Challuri	P**i@n**z	40
David Matthews	d**s@m**k	33
Samuel Gaist	s**t@i**h	33
Luis Kornblueh	l**h@z**e	31
Kerry Day	k**y@m**k	29
Scott Wales	s**s@b**u	26
Thomas Coleman	t**n@b**u	21
Samuel Denton	s**n@m**k	12
Christopher Bennett	c**t@m**k	10
John Haiducek	j**e@g**m	8
Scott Wales	s**s@u**u	8
Mark Dawson	m**n@m**k	7
Gilliano Menezes	g**s@g**m	7
and 27 more...

Issue and Pull Request metadata

Last synced: 1 day ago

Total issues: 747
Total pull requests: 1,706
Average time to close issues: 9 months
Average time to close pull requests: 23 days
Total issue authors: 44
Total pull request authors: 32
Average comments per issue: 2.92
Average comments per pull request: 2.25
Merged pull request: 1,272
Bot issues: 1
Bot pull requests: 477

Past year issues: 120
Past year pull requests: 257
Past year average time to close issues: 2 months
Past year average time to close pull requests: 12 days
Past year issue authors: 11
Past year pull request authors: 20
Past year average comments per issue: 2.13
Past year average comments per pull request: 1.9
Past year merged pull request: 161
Past year bot issues: 0
Past year bot pull requests: 73

More stats: https://issues.ecosyste.ms/repositories/lookup?url=https://github.com/cylc/cylc-flow

Top Issue Authors

oliver-sanders (298)
hjoliver (153)
MetRonnie (72)
ColemanTom (66)
wxtim (60)
dpmatthews (14)
dwsutherland (12)
matthewrmshin (8)
sadielbartholomew (7)
elliotfontaine (5)
jfrost-mo (5)
kinow (4)
jarich (4)
benfitzpatrick (2)
datamel (2)

Top Pull Request Authors

github-actions[bot] (432)
oliver-sanders (366)
MetRonnie (314)
wxtim (241)
hjoliver (160)
dwsutherland (60)
dependabot[bot] (45)
markgrahamdawson (12)
ColemanTom (11)
ChrisPaulBennett (8)
samuel-denton (8)
psa (8)
Scott-Owen-James (7)
ScottWales (4)
jfrost-mo (4)

Top Issue Labels

bug (281)
small (132)
could be better (73)
question (50)
investigation (24)
efficiency (22)
bug? (18)
doc (15)
speculative (8)
duplicate (6)
dependencies (6)
wontfix (5)
needs reproducing (5)
superseded (5)
infrastructure (4)
non-cylc bug (4)
priority-1 (2)
invalid (2)
BLOCKED (2)
testing (2)
code refactor (2)
platforms (1)
sync (1)
cylc review (1)
🐞 bug (1)
POC (1)

Top Pull Request Labels

small (588)
sync (345)
bug (307)
doc (99)
could be better (96)
infrastructure (86)
dependencies (75)
release (42)
efficiency (30)
superseded (27)
bug? (23)
schema change (21)
config change (12)
code refactor (11)
question (8)
db change (8)
non-cylc bug (7)
sod-follow-up (7)
duplicate (5)
invalid (5)
testing (4)
BLOCKED (4)
investigation (3)
python (3)
priority-1 (3)
wontfix (3)
tutorial-workflows (2)
POC (1)
cylc review (1)

Package metadata

Total packages: 3
Total downloads:
- pypi: 20,719 last-month
- conda: 259,029 total
Total dependent packages: 12 (may contain duplicates)
Total dependent repositories: 1 (may contain duplicates)
Total versions: 72
Total maintainers: 3

pypi.org: cylc-flow

A workflow engine for cycling systems

Homepage: https://cylc.org/
Documentation: https://cylc.github.io/cylc-doc/stable/html/index.html
Licenses: GPL
Latest release: 8.6.5 (published about 2 months ago)
Last Synced: 2026-08-12T03:01:21.629Z (1 day ago)
Versions: 51
Dependent Packages: 6
Dependent Repositories: 1
Downloads: 20,719 Last month
Rankings:
- Dependent packages count: 1.394%
- Stargazers count: 3.651%
- Forks count: 4.83%
- Downloads: 6.365%
- Average: 7.571%
- Dependent repos count: 21.615%
Maintainers (3)

conda-forge.org: cylc-flow-base

Cylc ("silk") is a workflow engine for cycling systems - it orchestrates distributed workflows of interdependent cycling tasks that may continue to run indefinitely. There are two cylc-flow packages: * `cylc-flow`: The full installation, recommended for most uses. * `cylc-flow-base`: A minimal package, recommended for installation on job hosts where the full range of user-facing commands is not required. The `cylc report-timings` command requires two additional dependencies which you must specify manually if you want this functionality: * `pandas >=1.0,<2` * `matplotlib-base`

Homepage: https://cylc.org/
Licenses: GPL-3.0-only
Latest release: 8.0.3 (published almost 4 years ago)
Last Synced: 2026-03-18T11:06:35.469Z (5 months ago)
Versions: 8
Dependent Packages: 3
Dependent Repositories: 0
Downloads: 98,097 Total
Rankings:
- Dependent packages count: 15.588%
- Forks count: 18.358%
- Average: 22.952%
- Stargazers count: 23.838%
- Dependent repos count: 34.025%

conda-forge.org: cylc-flow

Homepage: https://cylc.org/
Licenses: GPL-3.0-only
Latest release: 8.0.3 (published almost 4 years ago)
Last Synced: 2026-03-18T11:06:24.145Z (5 months ago)
Versions: 13
Dependent Packages: 3
Dependent Repositories: 0
Downloads: 160,932 Total
Rankings:
- Dependent packages count: 15.588%
- Forks count: 18.358%
- Average: 22.952%
- Stargazers count: 23.838%
- Dependent repos count: 34.025%

Dependencies

.github/workflows/1_create_release_pr.yml actions

actions/checkout v3 composite
actions/setup-python v4 composite
cylc/release-actions/build-python-package v1 composite
cylc/release-actions/check-shortlog v1 composite
cylc/release-actions/stage-1/checkout-pr-branch v1 composite
cylc/release-actions/stage-1/create-release-pr v1 composite
cylc/release-actions/stage-1/sanitize-inputs v1 composite
cylc/release-actions/stage-1/set-python-package-version v1 composite
cylc/release-actions/stage-1/update-changelog-release-date v1 composite

.github/workflows/2_auto_publish_release.yml actions

actions/checkout v3 composite
actions/create-release v1 composite
actions/setup-python v4 composite
cylc/release-actions/build-python-package v1 composite
cylc/release-actions/stage-2/bump-dev-version v1 composite
cylc/release-actions/stage-2/comment-on-pr v1 composite
cylc/release-actions/stage-2/get-version-from-pr v1 composite
pypa/gh-action-pypi-publish v1.6.4 composite

.github/workflows/bash.yml actions

actions/checkout v3 composite
actions/upload-artifact v3 composite

.github/workflows/shortlog.yml actions

actions/checkout v3 composite
cylc/release-actions/check-shortlog v1 composite

.github/workflows/test_conda-build.yml actions

actions/checkout v3 composite

.github/workflows/test_fast.yml actions

actions/checkout v3 composite
actions/setup-python v4 composite
actions/upload-artifact v3 composite
codecov/codecov-action v3 composite
cylc/release-actions/configure-git v1 composite

.github/workflows/test_functional.yml actions

actions/checkout v3 composite
actions/setup-python v4 composite
actions/upload-artifact v3 composite
codecov/codecov-action v3 composite
cylc/release-actions/configure-git v1 composite

.github/workflows/test_tutorial_workflow.yml actions

actions/checkout v3 composite
actions/setup-python v4 composite
cylc/cylc-doc/.github/actions/install-dependencies master composite

.github/workflows/update_copyright.yml actions

actions/checkout v3 composite
cylc/release-actions/checkout-copyright-branch v1 composite
cylc/release-actions/configure-git v1 composite
cylc/release-actions/create-pr v1 composite

dockerfiles/cylc-dev/Dockerfile docker

conda/miniconda3 latest build

dockerfiles/cylc-remote/Dockerfile docker

cylc-dev latest build

.github/workflows/branch_sync.yml actions

actions/checkout v3 composite
cylc/release-actions/configure-git v1 composite

.github/workflows/build.yml actions

actions/checkout v3 composite
actions/setup-python v4 composite
cylc/release-actions/build-python-package v1 composite

pyproject.toml pypi

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