Mercurial > repo
annotate share/lua/5.2/luarocks/search.lua @ 7327:084c64c79d06
<shachaf> revert
author | HackBot |
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date | Thu, 31 Mar 2016 00:01:47 +0000 |
parents | d137f631bad5 |
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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 implementing the LuaRocks "search" command. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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3 -- Queries LuaRocks servers. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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4 module("luarocks.search", package.seeall) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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5 |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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6 local dir = require("luarocks.dir") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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7 local path = require("luarocks.path") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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8 local manif = require("luarocks.manif") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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9 local deps = require("luarocks.deps") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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10 local cfg = require("luarocks.cfg") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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11 local util = require("luarocks.util") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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12 |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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13 help_summary = "Query the LuaRocks servers." |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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14 help_arguments = "[--source] [--binary] { <name> [<version>] | --all }" |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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15 help = [[ |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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16 --source Return only rockspecs and source rocks, |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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17 to be used with the "build" command. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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18 --binary Return only pure Lua and binary rocks (rocks that can be used |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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19 with the "install" command without requiring a C toolchain). |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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20 --all List all contents of the server that are suitable to |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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21 this platform, do not filter by name. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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22 ]] |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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23 |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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24 --- Convert the arch field of a query table to table format. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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25 -- @param query table: A query table. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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26 local function query_arch_as_table(query) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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27 local format = type(query.arch) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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28 if format == "table" then |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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29 return |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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30 elseif format == "nil" then |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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31 local accept = {} |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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32 accept["src"] = true |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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33 accept["all"] = true |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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34 accept["rockspec"] = true |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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35 accept["installed"] = true |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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36 accept[cfg.arch] = true |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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37 query.arch = accept |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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38 elseif format == "string" then |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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39 local accept = {} |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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40 for a in query.arch:gmatch("[%w_-]+") do |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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41 accept[a] = true |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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42 end |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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43 query.arch = accept |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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44 end |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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45 end |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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46 |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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47 --- Store a search result (a rock or rockspec) in the results table. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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48 -- @param results table: The results table, where keys are package names and |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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49 -- versions are tables matching version strings to an array of servers. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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50 -- @param name string: Package name. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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51 -- @param version string: Package version. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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52 -- @param arch string: Architecture of rock ("all", "src" or platform |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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53 -- identifier), "rockspec" or "installed" |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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54 -- @param repo string: Pathname of a local repository of URL of |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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55 -- rocks server. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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56 local function store_result(results, name, version, arch, repo) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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57 assert(type(results) == "table") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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58 assert(type(name) == "string") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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59 assert(type(version) == "string") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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60 assert(type(arch) == "string") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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61 assert(type(repo) == "string") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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62 |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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63 if not results[name] then results[name] = {} end |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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64 if not results[name][version] then results[name][version] = {} end |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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65 table.insert(results[name][version], { |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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66 arch = arch, |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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67 repo = repo |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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68 }) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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69 end |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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70 |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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71 --- Test the name field of a query. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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72 -- If query has a boolean field exact_name set to false, |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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73 -- then substring match is performed; otherwise, exact string |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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74 -- comparison is done. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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75 -- @param query table: A query in dependency table format. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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76 -- @param name string: A package name. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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77 -- @return boolean: True if names match, false otherwise. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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78 local function match_name(query, name) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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79 assert(type(query) == "table") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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80 assert(type(name) == "string") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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81 if query.exact_name == false then |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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82 return name:find(query.name, 0, true) and true or false |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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83 else |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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84 return name == query.name |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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85 end |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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86 end |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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87 |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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88 --- Store a match in a results table if version matches query. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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89 -- Name, version, arch and repository path are stored in a given |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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90 -- table, optionally checking if version and arch (if given) match |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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91 -- a query. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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92 -- @param results table: The results table, where keys are package names and |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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93 -- versions are tables matching version strings to an array of servers. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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94 -- @param repo string: URL or pathname of the repository. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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95 -- @param name string: The name of the package being tested. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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96 -- @param version string: The version of the package being tested. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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97 -- @param arch string: The arch of the package being tested. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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98 -- @param query table: A table describing the query in dependency |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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99 -- format (for example, {name = "filesystem", exact_name = false, |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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100 -- constraints = {op = "~>", version = {1,0}}}, arch = "rockspec"). |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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101 -- If the arch field is omitted, the local architecture (cfg.arch) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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102 -- is used. The special value "any" is also recognized, returning all |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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103 -- matches regardless of architecture. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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104 local function store_if_match(results, repo, name, version, arch, query) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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105 if match_name(query, name) then |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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106 if query.arch[arch] or query.arch["any"] then |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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107 if deps.match_constraints(deps.parse_version(version), query.constraints) then |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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108 store_result(results, name, version, arch, repo) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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109 end |
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110 end |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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111 end |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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112 end |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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113 |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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114 --- Perform search on a local repository. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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115 -- @param repo string: The pathname of the local repository. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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116 -- @param query table: A table describing the query in dependency |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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117 -- format (for example, {name = "filesystem", exact_name = false, |
d137f631bad5
<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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118 -- constraints = {op = "~>", version = {1,0}}}, arch = "rockspec"). |
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119 -- If the arch field is omitted, the local architecture (cfg.arch) |
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120 -- is used. The special value "any" is also recognized, returning all |
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121 -- matches regardless of architecture. |
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122 -- @param results table or nil: If given, this table will store the |
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123 -- results; if not given, a new table will be created. |
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124 -- @param table: The results table, where keys are package names and |
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125 -- versions are tables matching version strings to an array of servers. |
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126 -- If a table was given in the "results" parameter, that is the result value. |
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127 function disk_search(repo, query, results) |
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128 assert(type(repo) == "string") |
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129 assert(type(query) == "table") |
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130 assert(type(results) == "table" or not results) |
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131 |
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132 local fs = require("luarocks.fs") |
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133 |
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134 if not results then |
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135 results = {} |
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136 end |
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137 query_arch_as_table(query) |
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138 |
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139 for _, name in pairs(fs.list_dir(repo)) do |
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140 local pathname = dir.path(repo, name) |
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141 local rname, rversion, rarch = path.parse_name(name) |
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142 if fs.is_dir(pathname) then |
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143 for _, version in pairs(fs.list_dir(pathname)) do |
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144 if version:match("-%d+$") then |
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145 store_if_match(results, repo, name, version, "installed", query) |
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146 end |
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147 end |
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148 elseif rname then |
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149 store_if_match(results, repo, rname, rversion, rarch, query) |
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150 end |
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151 end |
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152 return results |
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153 end |
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154 |
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155 --- Perform search on a rocks server. |
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156 -- @param results table: The results table, where keys are package names and |
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157 -- versions are tables matching version strings to an array of servers. |
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158 -- @param repo string: The URL of the rocks server. |
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159 -- @param query table: A table describing the query in dependency |
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160 -- format (for example, {name = "filesystem", exact_name = false, |
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161 -- constraints = {op = "~>", version = {1,0}}}, arch = "rockspec"). |
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162 -- If the arch field is omitted, the local architecture (cfg.arch) |
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163 -- is used. The special value "any" is also recognized, returning all |
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164 -- matches regardless of architecture. |
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165 -- @return true or, in case of errors, nil and an error message. |
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166 function manifest_search(results, repo, query) |
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167 assert(type(results) == "table") |
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168 assert(type(repo) == "string") |
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169 assert(type(query) == "table") |
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170 |
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171 query_arch_as_table(query) |
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172 local manifest, err = manif.load_manifest(repo) |
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173 if not manifest then |
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174 return nil, "Failed loading manifest: "..err |
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175 end |
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176 for name, versions in pairs(manifest.repository) do |
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177 for version, items in pairs(versions) do |
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178 for _, item in ipairs(items) do |
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179 store_if_match(results, repo, name, version, item.arch, query) |
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180 end |
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181 end |
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182 end |
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183 return true |
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184 end |
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185 |
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186 --- Search on all configured rocks servers. |
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187 -- @param query table: A dependency query. |
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188 -- @return table: A table where keys are package names |
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189 -- and values are tables matching version strings to an array of |
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190 -- rocks servers; if no results are found, an empty table is returned. |
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191 function search_repos(query) |
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192 assert(type(query) == "table") |
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193 |
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194 local results = {} |
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195 for _, repo in ipairs(cfg.rocks_servers) do |
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196 if type(repo) == "string" then |
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197 repo = { repo } |
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198 end |
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199 for _, mirror in ipairs(repo) do |
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200 local protocol, pathname = dir.split_url(mirror) |
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201 if protocol == "file" then |
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202 mirror = pathname |
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203 end |
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204 local ok, err = manifest_search(results, mirror, query) |
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205 if ok then |
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206 break |
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207 else |
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208 util.warning("Failed searching manifest: "..err) |
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209 end |
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210 end |
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211 end |
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212 return results |
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213 end |
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214 |
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215 --- Prepare a query in dependency table format. |
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216 -- @param name string: The query name. |
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217 -- @param version string or nil: |
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218 -- @return table: A query in table format |
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219 function make_query(name, version) |
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220 assert(type(name) == "string") |
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221 assert(type(version) == "string" or not version) |
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222 |
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223 local query = { |
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224 name = name, |
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225 constraints = {} |
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226 } |
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227 if version then |
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228 table.insert(query.constraints, { op = "==", version = deps.parse_version(version)}) |
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229 end |
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230 return query |
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231 end |
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232 |
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233 --- Get the URL for the latest in a set of versions. |
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234 -- @param name string: The package name to be used in the URL. |
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235 -- @param versions table: An array of version informations, as stored |
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236 -- in search results tables. |
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237 -- @return string or nil: the URL for the latest version if one could |
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238 -- be picked, or nil. |
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239 local function pick_latest_version(name, versions) |
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240 assert(type(name) == "string") |
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241 assert(type(versions) == "table") |
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242 |
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243 local vtables = {} |
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244 for v, _ in pairs(versions) do |
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245 table.insert(vtables, deps.parse_version(v)) |
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246 end |
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247 table.sort(vtables) |
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248 local version = vtables[#vtables].string |
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249 local items = versions[version] |
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250 if items then |
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251 local pick = 1 |
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252 for i, item in ipairs(items) do |
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253 if (item.arch == 'src' and items[pick].arch == 'rockspec') |
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254 or (item.arch ~= 'src' and item.arch ~= 'rockspec') then |
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255 pick = i |
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256 end |
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257 end |
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258 return path.make_url(items[pick].repo, name, version, items[pick].arch) |
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259 end |
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260 return nil |
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261 end |
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262 |
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263 --- Attempt to get a single URL for a given search. |
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264 -- @param query table: A dependency query. |
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265 -- @return string or table or (nil, string): URL for matching rock if |
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266 -- a single one was found, a table of candidates if it could not narrow to |
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267 -- a single result, or nil followed by an error message. |
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268 function find_suitable_rock(query) |
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269 assert(type(query) == "table") |
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270 |
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271 local results = search_repos(query) |
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272 local first = next(results) |
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273 if not first then |
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274 return nil, "No results matching query were found." |
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275 elseif not next(results, first) then |
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276 return pick_latest_version(query.name, results[first]) |
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277 else |
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278 return results |
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279 end |
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280 end |
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281 |
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282 --- Print a list of rocks/rockspecs on standard output. |
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283 -- @param results table: A table where keys are package names and versions |
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284 -- are tables matching version strings to an array of rocks servers. |
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285 -- @param porcelain boolean or nil: A flag to force machine-friendly output. |
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286 function print_results(results, porcelain) |
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287 assert(type(results) == "table") |
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288 assert(type(porcelain) == "boolean" or not porcelain) |
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289 |
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290 for package, versions in util.sortedpairs(results) do |
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291 if not porcelain then |
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292 util.printout(package) |
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293 end |
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294 for version, repos in util.sortedpairs(versions, deps.compare_versions) do |
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295 for _, repo in ipairs(repos) do |
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296 if porcelain then |
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297 util.printout(package, version, repo.arch, repo.repo) |
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298 else |
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299 util.printout(" "..version.." ("..repo.arch..") - "..repo.repo) |
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300 end |
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301 end |
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302 end |
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303 if not porcelain then |
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304 util.printout() |
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305 end |
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306 end |
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307 end |
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308 |
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309 --- Splits a list of search results into two lists, one for "source" results |
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310 -- to be used with the "build" command, and one for "binary" results to be |
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311 -- used with the "install" command. |
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312 -- @param results table: A search results table. |
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313 -- @return (table, table): Two tables, one for source and one for binary |
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314 -- results. |
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315 local function split_source_and_binary_results(results) |
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316 local sources, binaries = {}, {} |
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317 for name, versions in pairs(results) do |
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318 for version, repositories in pairs(versions) do |
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319 for _, repo in ipairs(repositories) do |
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320 local where = sources |
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321 if repo.arch == "all" or repo.arch == cfg.arch then |
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322 where = binaries |
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323 end |
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324 store_result(where, name, version, repo.arch, repo.repo) |
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325 end |
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326 end |
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327 end |
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328 return sources, binaries |
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329 end |
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330 |
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331 --- Given a name and optionally a version, try to find in the rocks |
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332 -- servers a single .src.rock or .rockspec file that satisfies |
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333 -- the request, and run the given function on it; or display to the |
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334 -- user possibilities if it couldn't narrow down a single match. |
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335 -- @param action function: A function that takes a .src.rock or |
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336 -- .rockspec URL as a parameter. |
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337 -- @param name string: A rock name |
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338 -- @param version string or nil: A version number may also be given. |
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339 -- @return The result of the action function, or nil and an error message. |
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340 function act_on_src_or_rockspec(action, name, version, ...) |
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341 assert(type(action) == "function") |
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342 assert(type(name) == "string") |
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343 assert(type(version) == "string" or not version) |
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344 |
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345 local query = make_query(name, version) |
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346 query.arch = "src|rockspec" |
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347 local results, err = find_suitable_rock(query) |
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348 if type(results) == "string" then |
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349 return action(results, ...) |
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350 else |
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351 return nil, "Could not find a result named "..name..(version and " "..version or "").."." |
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352 end |
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353 end |
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354 |
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355 --- Driver function for "search" command. |
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356 -- @param name string: A substring of a rock name to search. |
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357 -- @param version string or nil: a version may also be passed. |
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358 -- @return boolean or (nil, string): True if build was successful; nil and an |
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359 -- error message otherwise. |
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360 function run(...) |
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361 local flags, name, version = util.parse_flags(...) |
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362 |
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363 if flags["all"] then |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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364 name, version = "", nil |
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365 end |
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366 |
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367 if type(name) ~= "string" and not flags["all"] then |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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368 return nil, "Enter name and version or use --all; see help." |
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369 end |
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370 |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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371 local query = make_query(name:lower(), version) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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372 query.exact_name = false |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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373 local results, err = search_repos(query) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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374 local porcelain = flags["porcelain"] |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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375 util.title("Search results:", porcelain, "=") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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376 local sources, binaries = split_source_and_binary_results(results) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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377 if next(sources) and not flags["binary"] then |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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378 util.title("Rockspecs and source rocks:", porcelain) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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379 print_results(sources, porcelain) |
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380 end |
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381 if next(binaries) and not flags["source"] then |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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382 util.title("Binary and pure-Lua rocks:", porcelain) |
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383 print_results(binaries, porcelain) |
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384 end |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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385 return true |
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386 end |