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Billy Keyes
a00d2ccaf7
When GitHub creates patches for Dependabot PRs, it generates a "From:" line that is not valid according to RFC 5322: the address spec contains unquoted special characters (the "[bot]" in "dependabot[bot]"). While the 'net/mail' parser makes some exceptions to the spec, this is not one of them, so parsing these patch headers fails. Git's 'mailinfo' command avoids this by only implementing the unquoting part of RFC 5322 and then applying a heuristic to separate the string in to name and email values that seem reasonable. This commit does two things: 1. Reimplements ParsePatchIdentity to follow Git's logic, so that it can accept a wider range of inputs, including quoted strings. Strings accepted by the previous implementation parse in the same way with one exception: inputs that contain whitespace inside the angle brackets for an email address now use the email address as the name and drop any separate name component. 2. When parsing mail-formatted patches, use ParsePatchIdentity to parse the "From:" line instead of the 'net/mail' function.