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util.argparse: Fix bug (regression?) in argument parsing with --foo=bar

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After recent changes, '--foo bar' was working, but '--foo=bar' was not. The
test had a typo (?) (bar != baz) and because util.argparse is not strict by
default, the typo was not caught.

The typo caused the code to take a different path, and bypassed the buggy
handling of --foo=bar options.

I've preserved the existing test (typo and all!) because it's still an
interesting test, and ensures no unintended behaviour changes compared to the
old code.

However I've added a new variant of the test, with strict mode enabled and the
typo fixed. This test failed due to the bug, and this commit introduces a fix.
This commit is contained in:
Matthew Wild 2025-03-11 18:27:36 +00:00
parent afb9bc34a0
commit 06994f0bc1
2 changed files with 12 additions and 2 deletions
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8
util/argparse.lua
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@ -39,9 +39,13 @@ local function parse(arg, config)
local param_k, param_v;
if value_params[uparam] or array_params[uparam] then
param_k, param_v = uparam, table.remove(arg, 1);
param_k = uparam;
param_v = param:match("^=(.*)$", #uparam+1);
if not param_v then
return nil, "missing-value", raw_param;
param_v = table.remove(arg, 1);
if not param_v then
return nil, "missing-value", raw_param;
end
end
else
param_k, param_v = param:match("^([^=]+)=(.+)$");