{"record":{"id":"a2a5d4b8abfb1a42","repo":"laurent22/joplin","slug":"failed-to-extract-a-valid-remote-commit-hash","errorCode":null,"errorMessage":"Failed to extract a valid remote commit hash.","messagePattern":"Failed to extract a valid remote commit hash\\.","errorType":"exception","errorClass":"Error","httpStatus":null,"severity":"error","filePath":"packages/generator-joplin/generators/app/templates/script/publish/steps/verifyGitState.ts","lineNumber":59,"sourceCode":"\n\tconst currentBranch = await runGit('git rev-parse --abbrev-ref HEAD', 'Failed to retrieve current branch name. Ensure git is configured correctly.');\n\tif (currentBranch === 'HEAD') {\n\t\tthrow new Error('You are in a detached HEAD state. Checkout a branch (e.g. git checkout main) and push before publishing.');\n\t}\n\n\tconst remoteHeadLine = await runGit(`git ls-remote origin ${currentBranch}`, 'Could not retrieve remote HEAD. Make sure you have pushed your changes and have an internet connection.');\n\tif (!remoteHeadLine) {\n\t\tthrow new Error('Remote HEAD is empty. Make sure you have pushed your changes.');\n\t}\n\n\tconst parts = remoteHeadLine.split('\\n')[0].split(/\\s+/);\n\tif (parts.length < 2) {\n\t\tthrow new Error(`Unexpected git ls-remote output: \"${remoteHeadLine}\". Make sure your git remote and branch are configured correctly.`);\n\t}\n\n\tconst remoteHash = parts[0];\n\tif (remoteHash.length !== 40) {\n\t\tthrow new Error('Failed to extract a valid remote commit hash.');\n\t}\n\n\tif (remoteHash !== commitHash) {\n\t\tthrow new Error('Your local commit has not been pushed to GitHub. Run git push then try publishing again.');\n\t}\n\tlogger.success('Local commit is synced with remote.');\n\n\treturn commitHash;\n};\n\nexport default verifyGitState;\n","sourceCodeStart":41,"sourceCodeEnd":71,"githubUrl":"https://github.com/laurent22/joplin/blob/2654b33620775080d1d59c552259d41e33dad3d2/packages/generator-joplin/generators/app/templates/script/publish/steps/verifyGitState.ts#L41-L71","documentation":"Thrown by verifyGitState when the first whitespace-split part of the ls-remote output (the remote SHA) is not exactly 40 characters. This means ls-remote returned a line but the hash field is malformed — e.g. a short hash, a non-hash token, or a git server returning abbreviated refs.","triggerScenarios":"A git server configured to advertise abbreviated hashes; ls-remote output where the first token is a symbolic-ref or capability advertisement rather than a SHA; a remote helper returning unexpected leading content; a mirror/gateway rewriting the ref line.","commonSituations":"Non-standard git server (some older Gerrit/Bitbucket configs) advertising short SHAs; a custom remote helper; ls-remote included an extra leading line that was captured as parts[0].","solutions":["Run `git ls-remote origin <branch>` manually and verify the first token is a 40-char hex SHA.","If the server advertises short hashes, switch to a standard remote (GitHub/GitLab) or upgrade the server git.","Ensure no extra stdout (credentials, banners) precedes the ref line."],"exampleFix":"# inspect\ngit ls-remote origin main | head -1\n# expect: <40 hex>\\trefs/heads/main\n# if short, switch remote to a standard host:\ngit remote set-url origin git@github.com:user/repo.git","handlingStrategy":"validation","validationCode":"const out = execSync(`git ls-remote origin ${branch}`, { encoding: 'utf8' }).trim();\nconst hash = out.split('\\n')[0].split(/\\s+/)[0];\nif (!/^[0-9a-f]{40}$/.test(hash)) {\n  throw new Error(`Invalid remote hash: ${hash}`);\n}","typeGuard":"function isValidRemoteHash(h) { return /^[0-9a-f]{40}$/.test(h); }","tryCatchPattern":null,"preventionTips":["Use a standard git host (GitHub/GitLab) that advertises full 40-char SHAs.","Ensure no extra stdout precedes the ref line."],"tags":["plugin-publish","git","generator-joplin","remote"],"backgroundTag":null,"analyzedSha":"2654b33620775080d1d59c552259d41e33dad3d2","analyzedAt":"2026-08-12T14:26:46.263Z","schemaVersion":2},"datasetVersion":"2026-08-12T23:17:12.415Z"}