test: Add test_subset_comma_list

docs(README.md): Use ./keeper.py generate-config --help

fix: Improve two details

fix(keeper.py): get_nightly_only(): 'debug' argument missing

fix(gitlab-ci-template.yml): heuristic to spot manually-run pipelines

fix(keeper.py): a nasty string vs. list type error

fix(gitlab-ci-template.yml): Support CRON_MODE='minimal' also

fix(keeper.py): Allow propagate even if build is no-op

fix(keeper.py): Avoid dict KeyError

fix(gitlab-ci-template.yml): CLI syntax when reading from CI var

fix(gitlab-ci-template.yml): Add missing prefix --…

fix(gitlab-ci-template.yml): Remove leftover '--command=' prefix

fix(gitlab-ci-template.yml): Boolean condition

fix: apk not found on Debian

docs: Fix doc of HEAD-commit-message

docs: Document HEAD-commit-message features

fix: Take 'mode: nil' into account @ 'images.yml'.propagate.strategy

fix: Take 'mode: nil' into account @ 'images.yml'.propagate.strategy

Merge branch 'add-propagate' into 'master'

docs(README.md): Update usage from argparse output

docs(README.md): Update usage from argparse output

feat: New version extending the generate_config stage with dk_curl

feat: New version that greatly improve the prepare-artifacts stage

feat: New version that greatly improve the prepare-artifacts stage

feat: New version that greatly improve the prepare-artifacts stage

feat: Extend BashLike with '{l[/#/;]},{l[/%/;]},{s[#;]},{s[##*;]}'

feat: Extend BashLike with '{l[/#/;]},{l[/%/;]},{s[#;]},{s[##*;]}'

feat: Extend BashLike with '{l[/#/;]},{l[/%/;]},{s[#;]},{s[##*;]}'