Recent commits to derivepassphrase.git (eaa925389b8dbe644823fe77116a1edf844870f5) https://git.schokokeks.org/derivepassphrase.git/tree/eaa925389b8dbe644823fe77116a1edf844870f5 Recent commits feed provided by GitList. Rework the documentation concerning SSH agent use https://git.schokokeks.org/derivepassphrase.git/commit/eaa925389b8dbe644823fe77116a1edf844870f5 software@the13thletter.info (Marco Ricci) Wed, 21 Jan 2026 22:55:28 +0100 eaa925389b8dbe644823fe77116a1edf844870f5 For interfaced SSH agents in the tests, set SSH_AUTH_SOCK manually Generally, if we have an abstract socket connected to an SSH agent, then this is sufficient for us to construct a client based on the socket, and interact with the agent as needed. However, in the CLI tests, there are situations where we are orchestrating the whole `derivepassphrase` application, and the application must connect to the agent itself. For these situations, we need to set up the necessary configuration to pass the agent's socket address to `derivepassphrase`. For agents merely interfaced in the test suite, we were not doing such a setup, causing orchestrated `derivepassphrase` application instances to believe there was no agent to connect to. Fix this by (a) exposing the socket address on the socket object, internal to the spawning/interfacing function, and (b) let interfacing functions return a pair of socket and socket address, not just the socket. (We intend to keep the interface for actually obtaining the address private to each interfacing function, because not all socket objects can easily be retrofitted with extra methods to query the socket address.) (As a side effect, give the socket providers on The Annoying OS more specific typing, so that the type checker can verify that the interfacing functions are accessing the correct attributes and methods for obtaining the socket address.) https://git.schokokeks.org/derivepassphrase.git/commit/0393fa2adc5818edd9b9f99eb9bc308eb8cd066e software@the13thletter.info (Marco Ricci) Sun, 18 Jan 2026 17:35:34 +0100 0393fa2adc5818edd9b9f99eb9bc308eb8cd066e Use the "correct" wrong SSH_AUTH_SOCK value Some tests require a wrong SSH_AUTH_SOCK value where no SSH agent can be listening, but which is nonetheless syntactically valid. Since Windows named pipes have a specific address format, syntactically valid but wrong values look different on The Annoying OS than they look on POSIX. So fill in wrong values OS-specifically, not generally: on POSIX, we use what is clearly a directory, and on The Annoying OS, we use the common pipe name prefix (which is also a directory). https://git.schokokeks.org/derivepassphrase.git/commit/6941e00680b380839a5b2c05783a8240ac5b77c1 software@the13thletter.info (Marco Ricci) Sun, 18 Jan 2026 16:37:36 +0100 6941e00680b380839a5b2c05783a8240ac5b77c1 Prioritize WindowsNamedPipesNotAvailableError over other errors The SSH agent socket provider, by contract, must raise `NotImplementedError` (or a subclass) if and only if the socket can never be successfully constructed, on principle. Conversely, if the socket provider raises any other kind of error, then the socket *could* be constructed on this system, principally. In the specific case of Windows named pipes whose address is named by the `SSH_AUTH_SOCK` environment variable, it is a programming error to first check the environment variable value, allowing `KeyError` or `ValueError` to bubble through to the caller, and only afterwards during construction of the named pipe realize that there is no support. https://git.schokokeks.org/derivepassphrase.git/commit/0d071d0ac2663006f7c5dff2f337e3e91d636fd4 software@the13thletter.info (Marco Ricci) Sun, 18 Jan 2026 15:42:53 +0100 0d071d0ac2663006f7c5dff2f337e3e91d636fd4 Fix coverage slipups and error messages in the Windows named pipe handles https://git.schokokeks.org/derivepassphrase.git/commit/561a479916d0cea8312ce0aee02889bd5297107f software@the13thletter.info (Marco Ricci) Sun, 18 Jan 2026 14:38:27 +0100 561a479916d0cea8312ce0aee02889bd5297107f Fix coverage slipup of socket provider alias registration When registering auto-detected new socket providers, registration should fail if two different providers try to register the same alias. The test suite originally contained a test case for this, but it used the "posix" and "the_annoying_os" names as base names, which were changed to aliases in 41029a5e6ef04a9870dcaf044b54a26af94260ab. Thus, the test *actually* attempted to register something that was previously an alias as a new base name. This was also an error (still is), and it used the same error message, so the test continued to pass. But it was then exercising a different code branch, and thus the original code branch was effectively lacking a dedicated test. We fix this by resolving the now-aliased entry to its actual base name. https://git.schokokeks.org/derivepassphrase.git/commit/5ade48e3fcfe03b9fdb2651e80a08a9360ccbc0c software@the13thletter.info (Marco Ricci) Sun, 18 Jan 2026 14:25:44 +0100 5ade48e3fcfe03b9fdb2651e80a08a9360ccbc0c Properly combine coverage files cross-platform Set the coverage settings to record relative paths, instead of absolute ones, so that when combining coverage files from different OSes, the paths merge cleanly. https://git.schokokeks.org/derivepassphrase.git/commit/f1653ee4bd35f594c1dadc54d7413c7a5233db5d software@the13thletter.info (Marco Ricci) Sun, 18 Jan 2026 14:23:57 +0100 f1653ee4bd35f594c1dadc54d7413c7a5233db5d Use the SSH_AUTH_SOCK socket provider as "native" also on The Annoying OS Pageant is a good *fallback* native socket provider, but a bad *preferred* native socket provider, because the address is not configurable. Using `ssh_auth_sock_on_the_annoying_os` as the preferred native socker provider instead allows the user to easily change the agent to talk to by switching out environment variables. https://git.schokokeks.org/derivepassphrase.git/commit/7a5b6f099399315c35113a963906077788d8fd36 software@the13thletter.info (Marco Ricci) Sun, 18 Jan 2026 14:14:04 +0100 7a5b6f099399315c35113a963906077788d8fd36 Distinguish process-spawning heavy-duty tests from other heavy-duty tests Give heavy-duty tests that involve spawning processes less extensive example counts, because spawning processes is expensive (especially on The Annoying OS), and because Python 3.14+ is defaulting to slow-but-safe process spawning machinery that make these costs much more visible than before. Specifically, we introduce new hypothesis machinery for calculating a good `max_example` count for state machines that involve spawning processes on each state transition. There is currently only one such state machine: `FakeConfigurationMutexStateMachine` from the CLI heavy-duty tests. The example count `n'` for state machines is then `sqrt(10 * n)`, where `n` is the example count for other test types. For the "dev", "default" and "intense" profiles (`n = 10`, `100` and `1000`, respectively), this translates to `n' = 10`, `31` and `100`, respectively. In particular, at "dev" they are identical, and at "intense", state machines have "default" behavior. In preparation for this commit, we noticed that the hypothesis settings profiles were not necessarily defined when the state machines query the settings. Accordingly, we moved the settings profiles setup into the `tests.machinery.hypothesis` package, made it idempotent, and ensured it would be called before accessing the profiles. https://git.schokokeks.org/derivepassphrase.git/commit/d89c86a3394b8711b555725cda8031ba15fddd99 software@the13thletter.info (Marco Ricci) Sat, 17 Jan 2026 19:40:14 +0100 d89c86a3394b8711b555725cda8031ba15fddd99 Use "loadgroup" scheduling in the test suite runner Parallelize the test suite via the "loadgroup" scheduler, instead of the "worksteal" scheduler. There is currently only one `xtest_group` marker value, so effectively, the scheduler schedules the *marked* tests all to the same worker, and the others in whatever manner. We can thus rely on the marked tests executing serially, and do not need locks to protect them (or their fixture calls) from concurrent access. This eliminates "locking implementations" as both a source of errors and as another group of code that needs debugging, testing, and coverage. (Which was, unfortunately, our experience with the `filelock` package we used to protect non-isolated SSH agents on The Annoying OS during fixture setup and teardown.) As a bonus, because the "loadgroup" scheduler lazily assigns work items as other items are completed, the performance is similar to the "worksteal" scheduler it is replacing. https://git.schokokeks.org/derivepassphrase.git/commit/3cf1d6dcec03d2e186c6f77230e2157c9c76c48d software@the13thletter.info (Marco Ricci) Sat, 17 Jan 2026 19:00:49 +0100 3cf1d6dcec03d2e186c6f77230e2157c9c76c48d