This is an alternate PR to solving the same problem as
<https://github.com/openai/codex/pull/8227>.
In this PR, when Ollama is used via `--oss` (or via `model_provider =
"ollama"`), we default it to use the Responses format. At runtime, we do
an Ollama version check, and if the version is older than when Responses
support was added to Ollama, we print out a warning.
Because there's no way of configuring the wire api for a built-in
provider, we temporarily add a new `oss_provider`/`model_provider`
called `"ollama-chat"` that will force the chat format.
Once the `"chat"` format is fully removed (see
<https://github.com/openai/codex/discussions/7782>), `ollama-chat` can
be removed as well
---------
Co-authored-by: Eric Traut <etraut@openai.com>
Co-authored-by: Michael Bolin <mbolin@openai.com>
Bumps [toml](https://github.com/toml-rs/toml) from 0.9.4 to 0.9.5.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="bd21148c49"><code>bd21148</code></a>
chore: Release</li>
<li><a
href="ff1cb9a263"><code>ff1cb9a</code></a>
docs: Update changelog</li>
<li><a
href="39dd8b6422"><code>39dd8b6</code></a>
fix(parser): Improve bad quote error messages (<a
href="https://redirect.github.com/toml-rs/toml/issues/1014">#1014</a>)</li>
<li><a
href="137338eb26"><code>137338e</code></a>
chore(deps): Update Rust crate serde_json to v1.0.142 (<a
href="https://redirect.github.com/toml-rs/toml/issues/1022">#1022</a>)</li>
<li><a
href="d5b8c8a94e"><code>d5b8c8a</code></a>
fix(parser): Improve missing-open-quote errors</li>
<li><a
href="ce91354fc7"><code>ce91354</code></a>
fix(parser): Don't treat trailing quotes as separate items</li>
<li><a
href="8f424edd08"><code>8f424ed</code></a>
fix(parser): Conjoin more values in unquoted string errors</li>
<li><a
href="2b9a81ae79"><code>2b9a81a</code></a>
fix(parser): Reduce float false positives</li>
<li><a
href="f6538413bb"><code>f653841</code></a>
fix(parser): Reduce float/bool false positives</li>
<li><a
href="f4864ef34b"><code>f4864ef</code></a>
test(parser): Add case for missing start quote</li>
<li>See full diff in <a
href="https://github.com/toml-rs/toml/compare/toml-v0.9.4...toml-v0.9.5">compare
view</a></li>
</ul>
</details>
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This adds support for easily running Codex backed by a local Ollama
instance running our new open source models. See
https://github.com/openai/gpt-oss for details.
If you pass in `--oss` you'll be prompted to install/launch ollama, and
it will automatically download the 20b model and attempt to use it.
We'll likely want to expand this with some options later to make the
experience smoother for users who can't run the 20b or want to run the
120b.
Co-authored-by: Michael Bolin <mbolin@openai.com>
