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