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util/mercurial.lua @ 13317:e6a5f196fc1f
util.uuid: Add UUIDv7
Allows sorting by id as a substitute for sorting by timestamp since it
has the timestamp in the encoded in the first part, and only things that
happen extremely close together may get out of order by such a sort,
which might not matter.
From draft-ietf-uuidrev-rfc4122bis formerly draft-peabody-dispatch-new-uuid-format
author | Kim Alvefur <zash@zash.se> |
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date | Sun, 15 Aug 2021 14:44:21 +0200 |
parent | 10533:a6cc5b844d7b |
rev | line source |
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util.mercurial: Utility functions for Mercurial repositories
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1 |
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2 local lfs = require"lfs"; |
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3 |
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4 local hg = { }; |
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5 |
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6 function hg.check_id(path) |
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7 if lfs.attributes(path, 'mode') ~= "directory" then |
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8 return nil, "not a directory"; |
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9 end |
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10 local hg_dirstate = io.open(path.."/.hg/dirstate"); |
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11 local hgid, hgrepo |
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12 if hg_dirstate then |
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13 hgid = ("%02x%02x%02x%02x%02x%02x"):format(hg_dirstate:read(6):byte(1, 6)); |
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14 hg_dirstate:close(); |
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15 local hg_changelog = io.open(path.."/.hg/store/00changelog.i"); |
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16 if hg_changelog then |
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17 hg_changelog:seek("set", 0x20); |
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18 hgrepo = ("%02x%02x%02x%02x%02x%02x"):format(hg_changelog:read(6):byte(1, 6)); |
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19 hg_changelog:close(); |
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20 end |
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21 else |
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util.mercurial: Ignore an unused error variable [luacheck]
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22 local hg_archival,e = io.open(path.."/.hg_archival.txt"); -- luacheck: ignore 211/e |
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23 if hg_archival then |
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24 local repo = hg_archival:read("*l"); |
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25 local node = hg_archival:read("*l"); |
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26 hg_archival:close() |
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27 hgid = node and node:match("^node: (%x%x%x%x%x%x%x%x%x%x%x%x)") |
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28 hgrepo = repo and repo:match("^repo: (%x%x%x%x%x%x%x%x%x%x%x%x)") |
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29 end |
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30 end |
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31 return hgid, hgrepo; |
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32 end |
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33 |
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34 return hg; |