1git-receive-pack(1) 2=================== 3 4NAME 5---- 6git-receive-pack - Receive what is pushed into it 7 8 9SYNOPSIS 10-------- 11'git-receive-pack' <directory> 12 13DESCRIPTION 14----------- 15Invoked by 'git-send-pack' and updates the repository with the 16information fed from the remote end. 17 18This command is usually not invoked directly by the end user. 19The UI for the protocol is on the 'git-send-pack' side, and the 20program pair is meant to be used to push updates to remote 21repository. For pull operations, see 'git-fetch-pack' and 22'git-clone-pack'. 23 24The command allows for creation and fast forwarding of sha1 refs 25(heads/tags) on the remote end (strictly speaking, it is the 26local end receive-pack runs, but to the user who is sitting at 27the send-pack end, it is updating the remote. Confused?) 28 29Before each ref is updated, if $GIT_DIR/hooks/update file exists 30and executable, it is called with three parameters: 31 32 $GIT_DIR/hooks/update refname sha1-old sha1-new 33 34The refname parameter is relative to $GIT_DIR; e.g. for the 35master head this is "refs/heads/master". Two sha1 are the 36object names for the refname before and after the update. Note 37that the hook is called before the refname is updated, so either 38sha1-old is 0{40} (meaning there is no such ref yet), or it 39should match what is recorded in refname. 40 41The hook should exit with non-zero status if it wants to 42disallow updating the named ref. Otherwise it should exit with 43zero. 44 45Using this hook, it is easy to generate mails on updates to 46the local repository. This example script sends a mail with 47the commits pushed to the repository: 48 49 #!/bin/sh 50 # mail out commit update information. 51 if expr "$2" : '0*$' >/dev/null 52 then 53 echo "Created a new ref, with the following commits:" 54 git-rev-list --pretty "$2" 55 else 56 echo "New commits:" 57 git-rev-list --pretty "$3" "^$2" 58 fi | 59 mail -s "Changes to ref $1" commit-list@mydomain 60 exit 0 61 62Another hook $GIT_DIR/hooks/post-update, if exists and 63executable, is called with the list of refs that have been 64updated. This can be used to implement repository wide cleanup 65task if needed. The exit code from this hook invocation is 66ignored; the only thing left for git-receive-pack to do at that 67point is to exit itself anyway. This hook can be used, for 68example, to run "git-update-server-info" if the repository is 69packed and is served via a dumb transport. 70 71 #!/bin/sh 72 exec git-update-server-info 73 74There are other real-world examples of using update and 75post-update hooks found in the Documentation/howto directory. 76 77 78OPTIONS 79------- 80<directory>:: 81 The repository to sync into. 82 83 84SEE ALSO 85-------- 86gitlink:git-send-pack[1] 87 88 89Author 90------ 91Written by Linus Torvalds <torvalds@osdl.org> 92 93Documentation 94-------------- 95Documentation by Junio C Hamano. 96 97GIT 98--- 99Part of the gitlink:git[7] suite