fix(agent): resolve the home directory on Windows - #3732
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hints.rs and auth.rs read $HOME directly, which Windows does not define outside shells like Git Bash — the desktop spawns agents from a GUI process without it. Global skill directories were never scanned and every OAuth provider failed with "oauth cache: $HOME not set". Use dirs::home_dir, and compare path components instead of a forward-slash substring in the cache-path test. Signed-off-by: sumit-m <33051892+sumit-m@users.noreply.github.com>
Signed-off-by: sumit-m <33051892+sumit-m@users.noreply.github.com>
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dirs::home_dir ignores $HOME on Windows in favour of USERPROFILE, so an explicitly set HOME was silently overridden and hints_integration's temp-dir isolation stopped working there. Fall back to dirs::home_dir instead of replacing the variable; Unix behaviour is unchanged. Signed-off-by: sumit-m <33051892+sumit-m@users.noreply.github.com>
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Problem
Two sites read the home directory straight out of
$HOME:hints.rs—home_dir()returnsNone, so the global skill directories (~/.agents/skills,~/.goose/skills,~/.claude/skills) are silently never scanned.auth.rs—cache_path_forhard-fails withoauth cache: $HOME not set, breaking every OAuth-cached provider.Windows does not define
HOME. It exists only inside shells that export it, such as Git Bash — and the desktop spawns agents from a GUI process, which sets no such variable. Verified on a Windows 11 host:HOMEis empty at both User and Machine scope and empty in a GUI-launched process, whileUSERPROFILEis populated.Change
Both sites go through
dirs::home_dir(), which consults the platform's own notion of the profile directory.dirs = "6"is already the convention inbuzz-clianddesktop/src-tauri.The
.configpath segment is deliberately kept on every platform. Switching Windows to%APPDATA%— or macOS todirs::config_dir(), which would resolve to~/Library/Application Support— would relocate caches that already exist. That is a separate decision from fixing the failure, and I did not want to fold a migration into a bug fix. Happy to follow up if you'd prefer the idiomatic locations.Tests
home_dir_resolves_on_this_platform— would have failed on Windows before.cache_path_is_rooted_at_the_platform_home— likewise; previouslyErr.cache_path_includes_namespace_and_hashcompared against the literal"/buzz-agent/oauth/demo/", which can never match on Windows. It now compares path components.cargo clippy -p buzz-agent --all-targetsclean; 301 pass on Windows. One pre-existing Windows failure is left untouched:hints::tests::discover_skills_dedup_by_nameasserts.agents/wins over.goose/, which depends on directory iteration order — it fails identically onmain.