Mercurial > hg
annotate mercurial/requirements.py @ 47532:ccbabaee5c36
dirstate-entry: add a `need_delay` method
This abstract the internal processing need for entry that would have an
ambiguous mtime (If I understand things correctly).
Differential Revision: https://phab.mercurial-scm.org/D10974
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Sun, 04 Jul 2021 02:13:53 +0200 |
parents | ed0d54b20c5b |
children | bf11ff22a9af |
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1 # requirements.py - objects and functions related to repository requirements |
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2 # |
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3 # Copyright 2005-2007 Olivia Mackall <olivia@selenic.com> |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
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6 # GNU General Public License version 2 or any later version. |
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7 |
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8 from __future__ import absolute_import |
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9 |
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10 GENERALDELTA_REQUIREMENT = b'generaldelta' |
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11 DOTENCODE_REQUIREMENT = b'dotencode' |
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12 STORE_REQUIREMENT = b'store' |
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13 FNCACHE_REQUIREMENT = b'fncache' |
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14 |
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15 DIRSTATE_V2_REQUIREMENT = b'exp-dirstate-v2' |
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16 |
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17 # When narrowing is finalized and no longer subject to format changes, |
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18 # we should move this to just "narrow" or similar. |
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19 NARROW_REQUIREMENT = b'narrowhg-experimental' |
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20 |
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21 # Enables sparse working directory usage |
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22 SPARSE_REQUIREMENT = b'exp-sparse' |
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23 |
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24 # Enables the internal phase which is used to hide changesets instead |
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25 # of stripping them |
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26 INTERNAL_PHASE_REQUIREMENT = b'internal-phase' |
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27 |
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28 # Stores manifest in Tree structure |
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29 TREEMANIFEST_REQUIREMENT = b'treemanifest' |
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30 |
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31 REVLOGV1_REQUIREMENT = b'revlogv1' |
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32 |
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33 # Increment the sub-version when the revlog v2 format changes to lock out old |
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34 # clients. |
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35 CHANGELOGV2_REQUIREMENT = b'exp-changelog-v2' |
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36 |
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37 # Increment the sub-version when the revlog v2 format changes to lock out old |
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38 # clients. |
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39 REVLOGV2_REQUIREMENT = b'exp-revlogv2.2' |
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40 |
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41 # A repository with the sparserevlog feature will have delta chains that |
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42 # can spread over a larger span. Sparse reading cuts these large spans into |
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43 # pieces, so that each piece isn't too big. |
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44 # Without the sparserevlog capability, reading from the repository could use |
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45 # huge amounts of memory, because the whole span would be read at once, |
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46 # including all the intermediate revisions that aren't pertinent for the chain. |
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47 # This is why once a repository has enabled sparse-read, it becomes required. |
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48 SPARSEREVLOG_REQUIREMENT = b'sparserevlog' |
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49 |
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50 # A repository with the the copies-sidedata-changeset requirement will store |
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51 # copies related information in changeset's sidedata. |
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52 COPIESSDC_REQUIREMENT = b'exp-copies-sidedata-changeset' |
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53 |
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54 # The repository use persistent nodemap for the changelog and the manifest. |
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55 NODEMAP_REQUIREMENT = b'persistent-nodemap' |
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56 |
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57 # Denotes that the current repository is a share |
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58 SHARED_REQUIREMENT = b'shared' |
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59 |
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60 # Denotes that current repository is a share and the shared source path is |
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61 # relative to the current repository root path |
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62 RELATIVE_SHARED_REQUIREMENT = b'relshared' |
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63 |
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64 # A repository with share implemented safely. The repository has different |
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65 # store and working copy requirements i.e. both `.hg/requires` and |
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66 # `.hg/store/requires` are present. |
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67 SHARESAFE_REQUIREMENT = b'share-safe' |
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68 |
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69 # List of requirements which are working directory specific |
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70 # These requirements cannot be shared between repositories if they |
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71 # share the same store |
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72 # * sparse is a working directory specific functionality and hence working |
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73 # directory specific requirement |
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74 # * SHARED_REQUIREMENT and RELATIVE_SHARED_REQUIREMENT are requirements which |
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75 # represents that the current working copy/repository shares store of another |
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76 # repo. Hence both of them should be stored in working copy |
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77 # * SHARESAFE_REQUIREMENT needs to be stored in working dir to mark that rest of |
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78 # the requirements are stored in store's requires |
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79 # * DIRSTATE_V2_REQUIREMENT affects .hg/dirstate, of which there is one per |
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80 # working directory. |
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81 WORKING_DIR_REQUIREMENTS = { |
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82 SPARSE_REQUIREMENT, |
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83 SHARED_REQUIREMENT, |
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84 RELATIVE_SHARED_REQUIREMENT, |
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85 SHARESAFE_REQUIREMENT, |
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86 DIRSTATE_V2_REQUIREMENT, |
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87 } |