8cab93302d
In some projects it may be desirable for the trailer to contain a link to the Gerrit review page so that it is convenient to access the review page starting from the commit message. The Link trailer is a standard trailer used for inserting links in the commit message, which has been adopted by the Linux kernel among other projects. For example, the Linux kernel has a policy about linking to the mailing list archive with Link trailers: https://www.kernel.org/doc/html/latest/maintainer/configure-git.html#creating-commit-links-to-lore-kernel-org This change makes Gerrit interoperate well with the Link trailer. Specifically, it teaches the Gerrit server to recognize trailers of the form: Link: https://gerrit-review.googlesource.com/id/I78e884a944cedb5144f661a057e4829c8f84e933 as well as the existing Change-Id trailer, teaches the server to recognize /id/ as a search prefix for change IDs and modifies the commit-msg hook to optionally add a Link trailer (using a server URL provided in the property gerrit.reviewUrl) instead of the Change-Id trailer. Change-Id: I78e884a944cedb5144f661a057e4829c8f84e933