mirror of
https://github.com/element-hq/synapse.git
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Erik JohnstonandClaude Fable 5.1
63b0aaa6d0
Synapse has always connected to Postgres through libpq (via psycopg2), so a connection string that omits `host=` gets libpq's default: the compiled-in socket directory (which distributions such as Debian patch) and environment variables like `PGHOST`. A Rust Postgres client such as `tokio-postgres` applies its own default (`localhost`) instead. To keep the existing connection behaviour, the Rust driver will ask the real libpq what it would do and copy that across. This adds the asking: `libpq::default_host` calls `PQconnectStart` on an empty conninfo, which applies libpq's defaults and environment, and reads the host libpq settled on back with `PQhost`. The connection attempt that `PQconnectStart` begins is never polled and its outcome is ignored: `PQhost` reports the resolved default whether or not a server is listening there. libpq is an optional runtime dependency, not a build-time one. The shared library is loaded with `dlopen` (via `libloading`) the first time `default_host` is called, and the five entry points we use are declared by hand. Synapse therefore builds and imports without libpq installed; only a deployment that needs the default host has to have `libpq5`, and `default_host` returns a clear error if it is missing. Split out of the Rust Postgres driver branch so the libpq dependency can be reviewed on its own. Nothing calls `default_host` yet; the driver's DSN fixup is the consumer. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
76 lines
2.1 KiB
TOML
76 lines
2.1 KiB
TOML
[package]
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# We name the package `synapse` so that things like logging have the right
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# logging target.
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name = "synapse"
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# dummy version. See pyproject.toml for the Synapse's version number.
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version = "0.1.0"
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edition = "2021"
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rust-version = "1.82.0"
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[lib]
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name = "synapse"
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# We generate a `cdylib` for Python and a standard `lib` for running
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# tests/benchmarks.
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crate-type = ["lib", "cdylib"]
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# This is deprecated, see tool.maturin in pyproject.toml.
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# It is left here for compatibilty with maturin < 0.15.
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[package.metadata.maturin]
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# This is where we tell maturin where to place the built library.
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name = "synapse.synapse_rust"
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[dependencies]
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async-trait = "0.1.89"
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anyhow = "1.0.63"
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base64 = "0.23.1"
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bytes = "1.6.0"
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headers = "0.4.0"
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http = "1.1.0"
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lazy_static = "1.4.0"
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libc = "0.2.174"
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log = "0.4.17"
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mime = "0.3.17"
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pyo3 = { version = "0.29.0", features = [
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"macros",
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"anyhow",
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"abi3",
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"abi3-py310",
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# So we can pass `bytes::Bytes` directly back to Python efficiently,
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# https://docs.rs/pyo3/latest/pyo3/bytes/index.html
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"bytes",
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] }
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pyo3-log = "0.13.4"
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pythonize = { version = "0.29.0", features = ["arbitrary_precision"] }
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regex = "1.6.0"
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sha2 = "0.11.0"
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serde = { version = "1.0.144", features = ["derive", "rc"] }
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serde_json = { version = "1.0.85", features = [
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"raw_value",
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# We need to be able to parse arbitrary precision numbers, as some numbers
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# in the database may be out of range of i64 (as Python uses arbitrary
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# precision integers).
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"arbitrary_precision",
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] }
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ulid = "3.0.0"
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icu_segmenter = "2.0.0"
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reqwest = { version = "0.12.15", default-features = false, features = [
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"http2",
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"stream",
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"rustls-tls-native-roots",
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] }
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http-body-util = "0.1.3"
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futures = "0.3.31"
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tokio = { version = "1.44.2", features = ["rt", "rt-multi-thread"] }
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once_cell = "1.18.0"
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itertools = "0.15.0"
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# Used by the `libpq` module to load the system libpq at runtime, so that
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# libpq is an optional runtime dependency rather than a build-time one.
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libloading = "0.8"
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[build-dependencies]
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blake2 = "0.11.0"
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hex = "0.4.3"
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rustc_version = "0.4.1"
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