Mercurial > repo
annotate share/lua/5.2/luarocks/manif.lua @ 7322:48cf67750eb1
<prooftechnique> learn prooftechnique n\xc3\xa9 NihilistDandy He was there some time ago. Maybe he\'ll come back. Maybe he\'s a nihilist, too. (Note from the Editor: He came back, and is a nihilist.)
author | HackBot |
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date | Wed, 30 Mar 2016 03:31:31 +0000 |
parents | d137f631bad5 |
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rev | line source |
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1132
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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1 |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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2 --- Module for handling manifest files and tables. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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3 -- Manifest files describe the contents of a LuaRocks tree or server. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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4 -- They are loaded into manifest tables, which are then used for |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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5 -- performing searches, matching dependencies, etc. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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6 module("luarocks.manif", package.seeall) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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7 |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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8 local manif_core = require("luarocks.manif_core") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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9 local persist = require("luarocks.persist") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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10 local fetch = require("luarocks.fetch") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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11 local dir = require("luarocks.dir") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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12 local fs = require("luarocks.fs") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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13 local search = require("luarocks.search") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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14 local util = require("luarocks.util") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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15 local cfg = require("luarocks.cfg") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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16 local path = require("luarocks.path") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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17 local repos = require("luarocks.repos") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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18 local deps = require("luarocks.deps") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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19 |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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20 rock_manifest_cache = {} |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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21 |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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22 --- Commit a table to disk in given local path. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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23 -- @param where string: The directory where the table should be saved. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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24 -- @param name string: The filename. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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25 -- @param tbl table: The table to be saved. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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26 -- @return boolean or (nil, string): true if successful, or nil and a |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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27 -- message in case of errors. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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28 local function save_table(where, name, tbl) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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29 assert(type(where) == "string") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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30 assert(type(name) == "string") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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31 assert(type(tbl) == "table") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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32 |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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33 local filename = dir.path(where, name) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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34 local ok, err = persist.save_from_table(filename..".tmp", tbl) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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35 if ok then |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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36 ok, err = fs.replace_file(filename, filename..".tmp") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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37 end |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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38 return ok, err |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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39 end |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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40 |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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41 function load_rock_manifest(name, version, root) |
d137f631bad5
<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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42 assert(type(name) == "string") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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43 assert(type(version) == "string") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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44 |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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45 local name_version = name.."/"..version |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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46 if rock_manifest_cache[name_version] then |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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47 return rock_manifest_cache[name_version].rock_manifest |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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48 end |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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49 local pathname = path.rock_manifest_file(name, version, root) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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50 local rock_manifest = persist.load_into_table(pathname) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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51 if not rock_manifest then return nil end |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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52 rock_manifest_cache[name_version] = rock_manifest |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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53 return rock_manifest.rock_manifest |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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54 end |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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55 |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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56 function make_rock_manifest(name, version) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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57 local install_dir = path.install_dir(name, version) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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parents:
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58 local rock_manifest = path.rock_manifest_file(name, version) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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59 local tree = {} |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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60 for _, file in ipairs(fs.find(install_dir)) do |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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61 local full_path = dir.path(install_dir, file) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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62 local walk = tree |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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63 local last |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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64 local last_name |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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parents:
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65 for name in file:gmatch("[^/]+") do |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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66 local next = walk[name] |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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67 if not next then |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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68 next = {} |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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69 walk[name] = next |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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70 end |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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parents:
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71 last = walk |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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parents:
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72 last_name = name |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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parents:
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73 walk = next |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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74 end |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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75 if fs.is_file(full_path) then |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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76 last[last_name] = fs.get_md5(full_path) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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77 end |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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parents:
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78 end |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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parents:
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79 local rock_manifest = { rock_manifest=tree } |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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80 rock_manifest_cache[name.."/"..version] = rock_manifest |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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parents:
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81 save_table(install_dir, "rock_manifest", rock_manifest ) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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82 end |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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parents:
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83 |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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parents:
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84 --- Load a local or remote manifest describing a repository. |
d137f631bad5
<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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parents:
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85 -- All functions that use manifest tables assume they were obtained |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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86 -- through either this function or load_local_manifest. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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parents:
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87 -- @param repo_url string: URL or pathname for the repository. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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parents:
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88 -- @return table or (nil, string, [string]): A table representing the manifest, |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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parents:
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89 -- or nil followed by an error message and an optional error code. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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parents:
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90 function load_manifest(repo_url) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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parents:
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91 assert(type(repo_url) == "string") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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parents:
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92 |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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parents:
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93 if manif_core.manifest_cache[repo_url] then |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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94 return manif_core.manifest_cache[repo_url] |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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95 end |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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parents:
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96 |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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parents:
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97 local protocol, pathname = dir.split_url(repo_url) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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parents:
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98 if protocol == "file" then |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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parents:
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99 pathname = dir.path(pathname, "manifest") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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parents:
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100 else |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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parents:
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101 local url = dir.path(repo_url, "manifest") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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102 local name = repo_url:gsub("[/:]","_") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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parents:
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103 local file, err, errcode = fetch.fetch_url_at_temp_dir(url, "luarocks-manifest-"..name) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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parents:
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104 if not file then |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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parents:
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105 return nil, "Failed fetching manifest for "..repo_url..(err and " - "..err or ""), errcode |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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parents:
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106 end |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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107 pathname = file |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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108 end |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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109 return manif_core.manifest_loader(pathname, repo_url) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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110 end |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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parents:
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111 |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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112 --- Output a table listing items of a package. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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parents:
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113 -- @param itemsfn function: a function for obtaining items of a package. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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114 -- pkg and version will be passed to it; it should return a table with |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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parents:
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115 -- items as keys. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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116 -- @param pkg string: package name |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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parents:
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117 -- @param version string: package version |
d137f631bad5
<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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parents:
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118 -- @param tbl table: the package matching table: keys should be item names |
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119 -- and values arrays of strings with packages names in "name/version" format. |
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120 local function store_package_items(itemsfn, pkg, version, tbl) |
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121 assert(type(itemsfn) == "function") |
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122 assert(type(pkg) == "string") |
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123 assert(type(version) == "string") |
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124 assert(type(tbl) == "table") |
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125 |
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126 local pkg_version = pkg.."/"..version |
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127 local result = {} |
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128 |
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129 for item, path in pairs(itemsfn(pkg, version)) do |
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130 result[item] = path |
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131 if not tbl[item] then |
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132 tbl[item] = {} |
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133 end |
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134 table.insert(tbl[item], pkg_version) |
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135 end |
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136 return result |
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137 end |
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138 |
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139 --- Sort function for ordering rock identifiers in a manifest's |
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140 -- modules table. Rocks are ordered alphabetically by name, and then |
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141 -- by version which greater first. |
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142 -- @param a string: Version to compare. |
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143 -- @param b string: Version to compare. |
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144 -- @return boolean: The comparison result, according to the |
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145 -- rule outlined above. |
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146 local function sort_pkgs(a, b) |
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147 assert(type(a) == "string") |
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148 assert(type(b) == "string") |
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149 |
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150 local na, va = a:match("(.*)/(.*)$") |
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151 local nb, vb = b:match("(.*)/(.*)$") |
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152 |
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153 return (na == nb) and deps.compare_versions(va, vb) or na < nb |
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154 end |
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155 |
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156 --- Sort items of a package matching table by version number (higher versions first). |
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157 -- @param tbl table: the package matching table: keys should be strings |
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158 -- and values arrays of strings with packages names in "name/version" format. |
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159 local function sort_package_matching_table(tbl) |
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160 assert(type(tbl) == "table") |
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161 |
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162 if next(tbl) then |
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163 for item, pkgs in pairs(tbl) do |
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164 if #pkgs > 1 then |
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165 table.sort(pkgs, sort_pkgs) |
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166 -- Remove duplicates from the sorted array. |
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167 local prev = nil |
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168 local i = 1 |
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169 while pkgs[i] do |
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170 local curr = pkgs[i] |
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171 if curr == prev then |
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172 table.remove(pkgs, i) |
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173 else |
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174 prev = curr |
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175 i = i + 1 |
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176 end |
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177 end |
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178 end |
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179 end |
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180 end |
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181 end |
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182 |
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183 --- Process the dependencies of a manifest table to determine its dependency |
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184 -- chains for loading modules. The manifest dependencies information is filled |
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185 -- and any dependency inconsistencies or missing dependencies are reported to |
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186 -- standard error. |
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187 -- @param manifest table: a manifest table. |
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188 local function update_dependencies(manifest, deps_mode) |
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189 assert(type(manifest) == "table") |
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190 assert(type(deps_mode) == "string") |
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191 |
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192 for pkg, versions in pairs(manifest.repository) do |
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193 for version, repositories in pairs(versions) do |
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194 local current = pkg.." "..version |
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195 for _, repo in ipairs(repositories) do |
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196 if repo.arch == "installed" then |
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197 local missing |
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198 repo.dependencies, missing = deps.scan_deps({}, {}, manifest, pkg, version, deps_mode) |
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199 repo.dependencies[pkg] = nil |
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200 if missing then |
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201 for miss, err in pairs(missing) do |
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202 if miss == current then |
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203 util.printerr("Tree inconsistency detected: "..current.." has no rockspec. "..err) |
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204 else |
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205 util.printerr("Missing dependency for "..pkg.." "..version..": "..miss) |
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206 end |
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207 end |
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208 end |
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209 end |
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210 end |
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211 end |
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212 end |
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213 end |
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214 |
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215 --- Store search results in a manifest table. |
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216 -- @param results table: The search results as returned by search.disk_search. |
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217 -- @param manifest table: A manifest table (must contain repository, modules, commands tables). |
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218 -- It will be altered to include the search results. |
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219 -- @return boolean or (nil, string): true in case of success, or nil followed by an error message. |
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220 local function store_results(results, manifest, deps_mode) |
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221 assert(type(results) == "table") |
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222 assert(type(manifest) == "table") |
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223 assert(type(deps_mode) == "string") |
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224 |
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225 for name, versions in pairs(results) do |
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226 local pkgtable = manifest.repository[name] or {} |
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227 for version, entries in pairs(versions) do |
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228 local versiontable = {} |
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229 for _, entry in ipairs(entries) do |
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230 local entrytable = {} |
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231 entrytable.arch = entry.arch |
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232 if entry.arch == "installed" then |
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233 local rock_manifest = load_rock_manifest(name, version) |
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234 if not rock_manifest then |
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235 return nil, "rock_manifest file not found for "..name.." "..version.." - not a LuaRocks 2 tree?" |
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236 end |
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237 entrytable.modules = store_package_items(repos.package_modules, name, version, manifest.modules) |
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238 entrytable.commands = store_package_items(repos.package_commands, name, version, manifest.commands) |
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239 end |
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240 table.insert(versiontable, entrytable) |
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241 end |
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242 pkgtable[version] = versiontable |
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243 end |
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244 manifest.repository[name] = pkgtable |
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245 end |
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246 update_dependencies(manifest, deps_mode) |
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247 sort_package_matching_table(manifest.modules) |
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248 sort_package_matching_table(manifest.commands) |
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249 return true |
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250 end |
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251 |
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252 --- Scan a LuaRocks repository and output a manifest file. |
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253 -- A file called 'manifest' will be written in the root of the given |
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254 -- repository directory. |
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255 -- @param repo A local repository directory. |
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256 -- @return boolean or (nil, string): True if manifest was generated, |
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257 -- or nil and an error message. |
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258 function make_manifest(repo, deps_mode) |
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259 assert(type(repo) == "string") |
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260 assert(type(deps_mode) == "string") |
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261 |
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262 if deps_mode == "none" then deps_mode = cfg.deps_mode end |
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263 |
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264 if not fs.is_dir(repo) then |
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265 return nil, "Cannot access repository at "..repo |
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266 end |
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267 |
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268 local query = search.make_query("") |
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269 query.exact_name = false |
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270 query.arch = "any" |
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271 local results = search.disk_search(repo, query) |
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272 local manifest = { repository = {}, modules = {}, commands = {} } |
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273 manif_core.manifest_cache[repo] = manifest |
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274 |
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275 local ok, err = store_results(results, manifest, deps_mode) |
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276 if not ok then return nil, err end |
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277 |
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278 return save_table(repo, "manifest", manifest) |
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279 end |
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280 |
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281 --- Load a manifest file from a local repository and add to the repository |
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282 -- information with regard to the given name and version. |
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283 -- A file called 'manifest' will be written in the root of the given |
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284 -- repository directory. |
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285 -- @param name string: Name of a package from the repository. |
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286 -- @param version string: Version of a package from the repository. |
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287 -- @param repo string or nil: Pathname of a local repository. If not given, |
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288 -- the default local repository configured as cfg.rocks_dir is used. |
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289 -- @return boolean or (nil, string): True if manifest was generated, |
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290 -- or nil and an error message. |
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291 function update_manifest(name, version, repo, deps_mode) |
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292 assert(type(name) == "string") |
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293 assert(type(version) == "string") |
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294 repo = path.rocks_dir(repo or cfg.root_dir) |
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295 assert(type(deps_mode) == "string") |
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296 |
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297 if deps_mode == "none" then deps_mode = cfg.deps_mode end |
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298 |
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299 util.printout("Updating manifest for "..repo) |
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300 |
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301 local manifest, err = load_manifest(repo) |
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302 if not manifest then |
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303 util.printerr("No existing manifest. Attempting to rebuild...") |
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304 local ok, err = make_manifest(repo, deps_mode) |
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305 if not ok then |
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306 return nil, err |
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307 end |
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308 manifest, err = load_manifest(repo) |
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309 if not manifest then |
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310 return nil, err |
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311 end |
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312 end |
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313 |
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314 local results = {[name] = {[version] = {{arch = "installed", repo = repo}}}} |
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315 |
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316 local ok, err = store_results(results, manifest, deps_mode) |
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317 if not ok then return nil, err end |
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318 |
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319 return save_table(repo, "manifest", manifest) |
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320 end |
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321 |
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322 local function find_providers(file, root) |
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323 assert(type(file) == "string") |
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324 root = root or cfg.root_dir |
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325 |
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326 local manifest, err = manif_core.load_local_manifest(path.rocks_dir(root)) |
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327 if not manifest then |
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328 return nil, err .. " -- corrupted local rocks tree?" |
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329 end |
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330 local deploy_bin = path.deploy_bin_dir(root) |
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331 local deploy_lua = path.deploy_lua_dir(root) |
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332 local deploy_lib = path.deploy_lib_dir(root) |
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333 local key, manifest_tbl |
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334 |
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335 if util.starts_with(file, deploy_lua) then |
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336 manifest_tbl = manifest.modules |
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337 key = path.path_to_module(file:sub(#deploy_lua+1):gsub("\\", "/")) |
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338 elseif util.starts_with(file, deploy_lib) then |
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339 manifest_tbl = manifest.modules |
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340 key = path.path_to_module(file:sub(#deploy_lib+1):gsub("\\", "/")) |
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341 elseif util.starts_with(file, deploy_bin) then |
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342 manifest_tbl = manifest.commands |
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343 key = file:sub(#deploy_bin+1):gsub("^[\\/]*", "") |
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344 else |
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345 assert(false, "Assertion failed: '"..file.."' is not a deployed file.") |
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346 end |
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347 |
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348 local providers = manifest_tbl[key] |
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349 if not providers then |
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350 return nil, "untracked" |
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351 end |
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352 return providers |
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353 end |
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354 |
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355 --- Given a path of a deployed file, figure out which rock name and version |
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356 -- correspond to it in the tree manifest. |
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357 -- @param file string: The full path of a deployed file. |
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358 -- @param root string or nil: A local root dir for a rocks tree. If not given, the default is used. |
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359 -- @return string, string: name and version of the provider rock. |
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360 function find_current_provider(file, root) |
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361 local providers, err = find_providers(file, root) |
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362 if not providers then return nil, err end |
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363 return providers[1]:match("([^/]*)/([^/]*)") |
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364 end |
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365 |
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366 function find_next_provider(file, root) |
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367 local providers, err = find_providers(file, root) |
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368 if not providers then return nil, err end |
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369 if providers[2] then |
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370 return providers[2]:match("([^/]*)/([^/]*)") |
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371 else |
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372 return nil |
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373 end |
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374 end |