Read the OpenCode Go key from the stores the local CLIs already use - #41
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OpenCode Go resolved its key from the config file and the two environment variables only, so a machine whose key lives in the OS credential store reported the provider as unconfigured even though a CLI on the same box held a working key. cairn-code writes that key under service `cairn-code`, account `opencode-go`, and the upstream `opencode` CLI keeps its own copy in `auth.json` beside its data directory; both are now read, after the config and environment so an explicit key still wins. Refs #40
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📝 WalkthroughWalkthroughThe change adds OpenCode credential loading from ordered keyring entries and the local CLI authentication file. OpenCode Go key selection uses this loader as a fallback. Documentation and authentication error guidance now describe these sources. ChangesOpenCode credential loading
Estimated code review effort: 3 (Moderate) | ~20 minutes Merge Risk: 🔵 Low · up to The change enables OpenCode Go usage reporting from credentials already stored by local CLIs, but malformed stored data could still cause a valid later credential to be skipped and produce authentication failures. The PR is mergeable with explicit owner awareness or follow-up on malformed credential handling and external store compatibility. Sequence Diagram(s)sequenceDiagram
participant OpenCodeGoRequest
participant opencode_key
participant load_opencode_key
participant CredentialStores
OpenCodeGoRequest->>opencode_key: resolve OpenCode Go credentials
opencode_key->>load_opencode_key: use local store when other sources are absent
load_opencode_key->>CredentialStores: search keyring and auth.json
CredentialStores-->>load_opencode_key: return the first supported key
load_opencode_key-->>opencode_key: return the discovered key
opencode_key-->>OpenCodeGoRequest: provide the authentication key
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🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
Full details: Docstring CoverageExplanation Docstring coverage is 69.23% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 13 functions across 2 files. (1 skipped: 1 unsupported.) ✨ Finishing Touches 💡 1📝 Generate docstrings 💡
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Inline comments:
In `@README.md`:
- Line 165: Update the OpenCode Go credential source entry in the README table
to reflect runtime priority: configuration first, then OPENCODE_GO_API_KEY,
OPENCODE_API_KEY, keyring entries, and finally the XDG or default
opencode/auth.json path.
In `@src/credentials/mod.rs`:
- Around line 425-429: Update the key parsing path around opencode_key_from_json
to reject invalid UTF-8 and malformed payloads that appear to be structured JSON
instead of treating them as bare keys. Continue accepting only valid UTF-8
non-empty bare keys, and add a test proving a malformed first keyring entry is
skipped so a valid later entry is selected.
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README.mdsrc/credentials/mod.rssrc/fetch.rs
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A payload that opens like JSON but does not parse, or that is not valid UTF-8, was returned as if it were a bare key. Being first in the search order, it displaced the entries checked after it, so one truncated blob turned a machine with a working key into a 401. Both shapes are now rejected and the search continues. Also documents the OpenCode Go credential sources in the order they are actually consulted, config key first, and names the XDG path. Refs #40
1 participant
Summary
limits statusshowed no OpenCode Go usage on a machine where OpenCode Go was authenticated in cairn-code.opencode_key()resolved the key from the config file and theOPENCODE_GO_API_KEY/OPENCODE_API_KEYenvironment variables only, and cairn-code sets neither: it persists the key in the OS credential store under servicecairn-code, accountopencode-go. The provider reported as unconfigured while a CLI on the same machine held a working key.OpenCode Go now resolves its key the way every other provider resolves credentials, from the local stores, after the config and environment so an explicit key still wins.
Refs #40
Changes
src/credentials/mod.rs: newload_opencode_key(), reading the keyring entriescairn-code/opencode-go,cairn-code/opencode, andopencode/opencode-goin that order, thenauth.jsonunder$XDG_DATA_HOMEor~/.local/share/opencode. A payload that is a bare key and one that is a JSON blob (key,api_key,access) both resolve.src/fetch.rs:opencode_key()falls back to that loader; the 401 message now points at re-authenticating the CLI as well as the environment variable.README.md: the credential table names the new sources.Test plan
src/credentials/mod.rsagainst an injected keyring reader: the cairn-code entry resolves and is trimmed, the entries are read in order, and a JSON payload yields the key rather than the blob.cargo test- 164 passed.cargo clippy --all-targets- clean../target/release/limits statuson a machine with the key only in the cairn-code keychain entry: OpenCode Go reports its Rolling, Weekly, and Monthly windows instead of being absent.