# The meaning of the '+' before the submodule hash. 3 messages from 2021-04-21 to 2021-04-21. Participants: Hongyi Zhao, Taylor Blau. Thread: https://gitlist.dev/t/55536 ## Hongyi Zhao, 2021-04-21 14:19 Subject: The meaning of the '+' before the submodule hash. Message-ID: URL: https://gitlist.dev/e/CAGP6PO%2B6MA9J1LRgGn4rcz8DBcW-hht92p-ahFaM9g6tcNFh-Q%40mail.gmail.com ``` Hi, See the following output given below by `git submodule status`: $ git submodule status +c7b9787f0b7826a87f07ce00cbfe4947b8521101 external/devxlib (heads/master) d0197c76ae76bbf4d3fed20444fac31af550069d external/eigensolver_gpu (v0.3.1-7-gd0197c7) +6fef49bcfc4a380432f15734ed0ca1f0b0388977 external/fox (4.1.2-89-g6fef49b) +4b3c7c249f6a2cfed76603d9987cf5164fa6f9e1 external/lapack (v3.7.0-1026-g4b3c7c249) +2899044d2a6828aa16e0189913662bc35ce8f645 external/mbd (0.12.1-43-g2899044) +2b9973c12e85397fa9564370f6cced16f8428834 external/wannier90 (v3.1.0-35-g2b9973c) What's the meaning of the '+' sign at the beginning? Why do some submodules have this symbol, but some submodules don't? Regards -- Assoc. Prof. Hongyi Zhao Theory and Simulation of Materials Hebei Polytechnic University of Science and Technology engineering NO. 552 North Gangtie Road, Xingtai, China ``` ## Taylor Blau, 2021-04-21 14:25 Subject: Re: The meaning of the '+' before the submodule hash. Message-ID: URL: https://gitlist.dev/e/YIA10O%2FBVrP3z%2FLK%40nand.local In-Reply-To: ``` On Wed, Apr 21, 2021 at 10:19:25PM +0800, Hongyi Zhao wrote: > What's the meaning of the '+' sign at the beginning? Why do some > submodules have this symbol, but some submodules don't? There are three symbols, 'U', '-', and '+'. From the documentation [1], they mean: Each SHA-1 will possibly be prefixed with `-` if the submodule is not initialized, `+` if the currently checked out submodule commit does not match the SHA-1 found in the index of the containing repository and `U` if the submodule has merge conflicts. [1]: https://git-scm.com/docs/git-submodule#Documentation/git-submodule.txt-status--cached--recursive--ltpathgt82308203 Thanks, Taylor ``` ## Hongyi Zhao, 2021-04-21 14:36 Subject: Re: The meaning of the '+' before the submodule hash. Message-ID: URL: https://gitlist.dev/e/CAGP6POKTTBfrtsXEKi2P%2Bxg0DLPNzo4%2BjRY%2BySmJ0wOQFPdZpw%40mail.gmail.com In-Reply-To: ``` On Wed, Apr 21, 2021 at 10:25 PM Taylor Blau wrote: > > On Wed, Apr 21, 2021 at 10:19:25PM +0800, Hongyi Zhao wrote: > > What's the meaning of the '+' sign at the beginning? Why do some > > submodules have this symbol, but some submodules don't? > > There are three symbols, 'U', '-', and '+'. From the documentation [1], > they mean: > > Each SHA-1 will possibly be prefixed with `-` if the submodule is not > initialized, `+` if the currently checked out submodule commit does not > match the SHA-1 found in the index of the containing repository and `U` > if the submodule has merge conflicts. > > [1]: https://git-scm.com/docs/git-submodule#Documentation/git-submodule.txt-status--cached--recursive--ltpathgt82308203 Thank you very much for pointing out this document information to me. The above submodules status for my case were achieved by the following command: $ git submodule update --init --recursive --remote As you can see, this will cause the status denoted by '+', i.e., the currently checked out submodule commit does not match the SHA-1 found in the index of the containing repository. I'm not sure if this is harmful. HY > Thanks, > Taylor -- Assoc. Prof. Hongyi Zhao Theory and Simulation of Materials Hebei Polytechnic University of Science and Technology engineering NO. 552 North Gangtie Road, Xingtai, China ```