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local purge = {}
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local util = require("luarocks.util")
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local fs = require("luarocks.fs")
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local path = require("luarocks.path")
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local search = require("luarocks.search")
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local vers = require("luarocks.core.vers")
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local repos = require("luarocks.repos")
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local writer = require("luarocks.manif.writer")
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local cfg = require("luarocks.core.cfg")
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local remove = require("luarocks.remove")
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local queries = require("luarocks.queries")
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local cmd = require("luarocks.cmd")
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purge.help_summary = "Remove all installed rocks from a tree."
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purge.help_arguments = "--tree=<tree> [--old-versions]"
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purge.help = [[
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This command removes rocks en masse from a given tree.
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By default, it removes all rocks from a tree.
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The --tree argument is mandatory: luarocks purge does not
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assume a default tree.
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--old-versions Keep the highest-numbered version of each
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rock and remove the other ones. By default
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it only removes old versions if they are
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not needed as dependencies. This can be
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overridden with the flag --force.
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]]
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function purge.command(flags)
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local tree = flags["tree"]
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if type(tree) ~= "string" then
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return nil, "The --tree argument is mandatory. "..util.see_help("purge")
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end
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local results = {}
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if not fs.is_dir(tree) then
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return nil, "Directory not found: "..tree
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end
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local ok, err = fs.check_command_permissions(flags)
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if not ok then return nil, err, cmd.errorcodes.PERMISSIONDENIED end
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search.local_manifest_search(results, path.rocks_dir(tree), queries.all())
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local sort = function(a,b) return vers.compare_versions(b,a) end
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if flags["old-versions"] then
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sort = vers.compare_versions
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end
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for package, versions in util.sortedpairs(results) do
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for version, _ in util.sortedpairs(versions, sort) do
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if flags["old-versions"] then
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util.printout("Keeping "..package.." "..version.."...")
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local ok, err = remove.remove_other_versions(package, version, flags["force"], flags["force-fast"])
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if not ok then
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util.printerr(err)
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end
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break
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else
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util.printout("Removing "..package.." "..version.."...")
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local ok, err = repos.delete_version(package, version, "none", true)
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if not ok then
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util.printerr(err)
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end
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end
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end
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end
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return writer.make_manifest(cfg.rocks_dir, "one")
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end
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return purge
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