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util.argparse: Add support for repeatable parameters

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These are gathered into arrays
This commit is contained in:
Kim Alvefur 2022-01-05 04:46:27 +01:00
parent 9f0a28f1c4
commit 21740a1382
2 changed files with 16 additions and 2 deletions
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5
spec/util_argparse_spec.lua
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@ -50,4 +50,9 @@ describe("parse", function()
assert.equal("-h", where, "returned where");
end);
it("supports array arguments", function ()
local opts, err = parse({ "--item"; "foo"; "--item"; "bar" }, { array_params = { item = true } });
assert.falsy(err);
assert.same({"foo","bar"}, opts.item);
end)
end);

13
util/argparse.lua
View file

@ -1,6 +1,7 @@
local function parse(arg, config)
local short_params = config and config.short_params or {};
local value_params = config and config.value_params or {};
local array_params = config and config.array_params or {};
local parsed_opts = {};
@ -30,7 +31,7 @@ local function parse(arg, config)
end
local param_k, param_v;
if value_params[param] then
if value_params[param] or array_params[param] then
param_k, param_v = param, table.remove(arg, 1);
if not param_v then
return nil, "missing-value", raw_param;
@ -46,7 +47,15 @@ local function parse(arg, config)
end
param_k = param_k:gsub("%-", "_");
end
parsed_opts[param_k] = param_v;
if array_params[param] then
if parsed_opts[param_k] then
table.insert(parsed_opts[param_k], param_v);
else
parsed_opts[param_k] = { param_v };
end
else
parsed_opts[param_k] = param_v;
end
end
for i = 1, #arg do
parsed_opts[i] = arg[i];