{"record":{"id":"67e961b8905db1a2","repo":"pcottle/learnGitBranching","slug":"git-error-args-few-lower-what-git-method","errorCode":null,"errorMessage":"git-error-args-few (lower: {}, what: git {method})","messagePattern":"git-error-args-few \\(lower: (.+?), what: git (.+?)\\)","errorType":"validation","errorClass":"GitError","httpStatus":null,"severity":"error","filePath":"src/js/models/commandModel.js","lineNumber":241,"sourceCode":"  twoArgsForOrigin(args) {\n    this.validateArgBounds(args, 0, 2);\n  }\n\n  impliedHead(args, min) {\n    if(args.length == min) {\n      args.push('HEAD');\n    }\n  }\n\n  // this is a little utility class to help arg validation that happens over and over again\n  validateArgBounds(args, lower, upper, option) {\n    var what = (option === undefined) ?\n      'git ' + this.get('method') :\n      this.get('method') + ' ' + option + ' ';\n    what = 'with ' + what;\n\n    if (args.length < lower) {\n      throw new GitError({\n        msg: intl.str(\n          'git-error-args-few',\n          {\n            lower: String(lower),\n            what: what\n          }\n        )\n      });\n    }\n    if (args.length > upper) {\n      throw new GitError({\n        msg: intl.str(\n          'git-error-args-many',\n          {\n            upper: String(upper),\n            what: what\n          }\n        )","sourceCodeStart":223,"sourceCodeEnd":259,"githubUrl":"https://github.com/pcottle/learnGitBranching/blob/5b09d0ff9678cad164f5a7488a279a44f90d7256/src/js/models/commandModel.js#L223-L259","documentation":"CommandModel.validateArgBounds() checks the number of arguments against [lower, upper]. When args.length < lower it throws GitError('git-error-args-few') with the formatted lower bound and a 'what' string like 'with git {method}' or 'with {method} {option}'.","triggerScenarios":"Calling validateArgBounds() (directly or via helpers argImpliedHead, oneArgImpliedOrigin, twoArgsForOrigin) with fewer arguments than the command requires — e.g. `git checkout` style commands invoked with no ref when one is required.","commonSituations":"Users omitting required ref/branch arguments; command shims forgetting to inject an implied HEAD arg before validating; refactoring a command's required-arg count without updating callers.","solutions":["Supply the missing argument(s), e.g. the branch/ref name","If the arg should be implied (like HEAD), call argImpliedHead or pass defaults before validating","Audit custom command definitions' lower bound against actual usage"],"exampleFix":"// before\ngit branch\n// after\ngit branch newbranch","handlingStrategy":"validation","validationCode":"if (args.length < lower) { reject(`this command needs at least ${lower} argument(s)`); }","typeGuard":"function hasMinArgs(args, lower) {\n  return Array.isArray(args) && args.length >= lower;\n}","tryCatchPattern":"try { command.validateArgBounds(args, lower, upper); } catch (e) { if (e instanceof GitError && /few/.test(e.msg)) { promptForArg(); } else throw e; }","preventionTips":["Check the command's required arguments before executing","Use argImpliedHead-style helpers to inject defaults before validating"],"tags":["argument-validation","too-few-args","command-model"],"backgroundTag":"missing-required-argument","analyzedSha":"5b09d0ff9678cad164f5a7488a279a44f90d7256","analyzedAt":"2026-08-27T13:53:49.057Z","schemaVersion":2},"datasetVersion":"2026-08-27T19:17:21.184Z"}