| pulkit |
| hg-reviewers |
They just moved in the same file, now they are grouped together and documented.
| Automatic diff as part of commit; lint not applicable. |
| Automatic diff as part of commit; unit tests not applicable. |
| Path | Packages | |||
|---|---|---|---|---|
| M | mercurial/upgrade_utils/actions.py (67 lines) |
| Status | Author | Revision | |
|---|---|---|---|
| Closed | marmoute | ||
| Closed | marmoute | ||
| Closed | marmoute | ||
| Closed | Alphare | ||
| Closed | Alphare | ||
| Closed | indygreg | ||
| Closed | mharbison72 | ||
| Closed | Alphare | ||
| Closed | marmoute | ||
| Closed | marmoute | ||
| Closed | marmoute | ||
| Closed | marmoute | ||
| Closed | marmoute | ||
| Closed | marmoute | ||
| Closed | marmoute | ||
| Closed | marmoute | ||
| Closed | marmoute | ||
| Closed | SimonSapin | ||
| Closed | SimonSapin | ||
| Closed | SimonSapin | ||
| Closed | martinvonz |
| # list of requirements that request a clone of all revlog if added/removed | # list of requirements that request a clone of all revlog if added/removed | ||||
| RECLONES_REQUIREMENTS = { | RECLONES_REQUIREMENTS = { | ||||
| b'generaldelta', | b'generaldelta', | ||||
| requirements.SPARSEREVLOG_REQUIREMENT, | requirements.SPARSEREVLOG_REQUIREMENT, | ||||
| } | } | ||||
| def requiredsourcerequirements(repo): | |||||
| """Obtain requirements required to be present to upgrade a repo. | |||||
| An upgrade will not be allowed if the repository doesn't have the | |||||
| requirements returned by this function. | |||||
| """ | |||||
| return { | |||||
| # Introduced in Mercurial 0.9.2. | |||||
| b'revlogv1', | |||||
| # Introduced in Mercurial 0.9.2. | |||||
| b'store', | |||||
| } | |||||
| def blocksourcerequirements(repo): | |||||
| """Obtain requirements that will prevent an upgrade from occurring. | |||||
| An upgrade cannot be performed if the source repository contains a | |||||
| requirements in the returned set. | |||||
| """ | |||||
| return { | |||||
| # The upgrade code does not yet support these experimental features. | |||||
| # This is an artificial limitation. | |||||
| requirements.TREEMANIFEST_REQUIREMENT, | |||||
| # This was a precursor to generaldelta and was never enabled by default. | |||||
| # It should (hopefully) not exist in the wild. | |||||
| b'parentdelta', | |||||
| # Upgrade should operate on the actual store, not the shared link. | |||||
| requirements.SHARED_REQUIREMENT, | |||||
| } | |||||
| def supportremovedrequirements(repo): | def supportremovedrequirements(repo): | ||||
| """Obtain requirements that can be removed during an upgrade. | """Obtain requirements that can be removed during an upgrade. | ||||
| If an upgrade were to create a repository that dropped a requirement, | If an upgrade were to create a repository that dropped a requirement, | ||||
| the dropped requirement must appear in the returned set for the upgrade | the dropped requirement must appear in the returned set for the upgrade | ||||
| to be allowed. | to be allowed. | ||||
| """ | """ | ||||
| supported = { | supported = { | ||||
| newactions.append(d) | newactions.append(d) | ||||
| # FUTURE consider adding some optimizations here for certain transitions. | # FUTURE consider adding some optimizations here for certain transitions. | ||||
| # e.g. adding generaldelta could schedule parent redeltas. | # e.g. adding generaldelta could schedule parent redeltas. | ||||
| return newactions | return newactions | ||||
| ### Code checking if a repository can got through the upgrade process at all. # | |||||
| def requiredsourcerequirements(repo): | |||||
| """Obtain requirements required to be present to upgrade a repo. | |||||
| An upgrade will not be allowed if the repository doesn't have the | |||||
| requirements returned by this function. | |||||
| """ | |||||
| return { | |||||
| # Introduced in Mercurial 0.9.2. | |||||
| b'revlogv1', | |||||
| # Introduced in Mercurial 0.9.2. | |||||
| b'store', | |||||
| } | |||||
| def blocksourcerequirements(repo): | |||||
| """Obtain requirements that will prevent an upgrade from occurring. | |||||
| An upgrade cannot be performed if the source repository contains a | |||||
| requirements in the returned set. | |||||
| """ | |||||
| return { | |||||
| # The upgrade code does not yet support these experimental features. | |||||
| # This is an artificial limitation. | |||||
| requirements.TREEMANIFEST_REQUIREMENT, | |||||
| # This was a precursor to generaldelta and was never enabled by default. | |||||
| # It should (hopefully) not exist in the wild. | |||||
| b'parentdelta', | |||||
| # Upgrade should operate on the actual store, not the shared link. | |||||
| requirements.SHARED_REQUIREMENT, | |||||
| } | |||||
| def check_source_requirements(repo): | def check_source_requirements(repo): | ||||
| """Ensure that no existing requirements prevent the repository upgrade""" | """Ensure that no existing requirements prevent the repository upgrade""" | ||||
| required = requiredsourcerequirements(repo) | required = requiredsourcerequirements(repo) | ||||
| missingreqs = required - repo.requirements | missingreqs = required - repo.requirements | ||||
| if missingreqs: | if missingreqs: | ||||
| msg = _(b'cannot upgrade repository; requirement missing: %s') | msg = _(b'cannot upgrade repository; requirement missing: %s') | ||||
| missingreqs = b', '.join(sorted(missingreqs)) | missingreqs = b', '.join(sorted(missingreqs)) | ||||
| raise error.Abort(msg % missingreqs) | raise error.Abort(msg % missingreqs) | ||||
| blocking = blocksourcerequirements(repo) | blocking = blocksourcerequirements(repo) | ||||
| blockingreqs = blocking & repo.requirements | blockingreqs = blocking & repo.requirements | ||||
| if blockingreqs: | if blockingreqs: | ||||
| m = _(b'cannot upgrade repository; unsupported source requirement: %s') | m = _(b'cannot upgrade repository; unsupported source requirement: %s') | ||||
| blockingreqs = b', '.join(sorted(blockingreqs)) | blockingreqs = b', '.join(sorted(blockingreqs)) | ||||
| raise error.Abort(m % blockingreqs) | raise error.Abort(m % blockingreqs) | ||||