From 01f49e3453d9960fec62d93bc3a66784f1be4c26 Mon Sep 17 00:00:00 2001 From: Junio C Hamano Date: Wed, 14 Dec 2005 00:42:45 -0800 Subject: [PATCH] Everyday: a bit more examples. Talk about the following as well: * git fetch --tags * Use of "git push" as a one-man distributed development vehicle. * Show example of remotes file for pulling and pushing. * Annotate git-shell setup. * Using Carl's update hook in a CVS-style shared repository. Signed-off-by: Junio C Hamano --- Documentation/everyday.txt | 147 +++++++++++++++++++++++++++++-------- 1 file changed, 118 insertions(+), 29 deletions(-) diff --git a/Documentation/everyday.txt b/Documentation/everyday.txt index 88bd88963..d8d7a6441 100644 --- a/Documentation/everyday.txt +++ b/Documentation/everyday.txt @@ -53,7 +53,7 @@ Everybody uses these commands to feed and care git repositories. Examples ~~~~~~~~ -Check health and remove cruft:: +Check health and remove cruft.:: + ------------ $ git fsck-objects <1> @@ -71,11 +71,14 @@ of loose objects accumulation may be a good rule of thumb. <4> after repack, prune removes the duplicate loose objects. ------------ -Repack a small project into single pack:: +Repack a small project into single pack.:: + ------------ $ git repack -a -d <1> $ git prune + +<1> pack all the objects reachable from the refs into one pack +and remove unneeded other packs ------------ @@ -117,7 +120,7 @@ following commands. Examples ~~~~~~~~ -Extract a tarball and create a working tree and a new repository to keep track of it:: +Extract a tarball and create a working tree and a new repository to keep track of it.:: + ------------ $ tar zxf frotz.tar.gz @@ -131,7 +134,7 @@ $ git tag v2.43 <2> <2> make a lightweight, unannotated tag. ------------ -Create a topic branch and develop:: +Create a topic branch and develop.:: + ------------ $ git checkout -b alsa-audio <1> @@ -163,7 +166,8 @@ modification will be caught if you do "commit -a" later. you originally wrote. <9> switch to the master branch. <10> merge a topic branch into your master branch -<11> or --since='aug 1', --max-count=10 +<11> review commit logs; other forms to limit output can be +combined and include --max-count=10 (show 10 commits), --until='2005-12-10'. <12> view only the changes that touch what's in curses/ directory, since v2.43 tag. ------------ @@ -176,20 +180,22 @@ A developer working as a participant in a group project needs to learn how to communicate with others, and uses these commands in addition to the ones needed by a standalone developer. - * gitlink:git-pull[1] from "origin" to keep up-to-date with - the upstream. + * gitlink:git-clone[1] from the upstream to prime your local + repository. + + * gitlink:git-pull[1] and gitlink:git-fetch[1] from "origin" + to keep up-to-date with the upstream. - * gitlink:git-push[1] to shared repository if you adopt CVS + * gitlink:git-push[1] to shared repository, if you adopt CVS style shared repository workflow. * gitlink:git-format-patch[1] to prepare e-mail submission, if you adopt Linux kernel-style public forum workflow. - Examples ~~~~~~~~ -Clone the upstream and work on it. Feed changes to upstream:: +Clone the upstream and work on it. Feed changes to upstream.:: + ------------ $ git clone git://git.kernel.org/pub/scm/.../torvalds/linux-2.6 my2.6 @@ -201,6 +207,7 @@ $ git whatchanged -p ORIG_HEAD.. arch/i386 include/asm-i386 <4> $ git pull git://git.kernel.org/pub/.../jgarzik/libata-dev.git ALL <5> $ git reset --hard ORIG_HEAD <6> $ git prune <7> +$ git fetch --tags <8> <1> repeat as needed. <2> extract patches from your branch for e-mail submission. @@ -210,9 +217,42 @@ area we are interested in. <5> fetch from a specific branch from a specific repository and and merge. <6> revert the pull. <7> garbage collect leftover objects from reverted pull. +<8> from time to time, obtain official tags from the "origin" +and store them under .git/refs/tags/. +------------ + + +Push into another repository.:: ++ +------------ +satellite$ git clone mothership:frotz/.git frotz <1> +satellite$ cd frotz +satellite$ cat .git/remotes/origin <2> +URL: mothership:frotz/.git +Pull: master:origin +satellite$ echo 'Push: master:satellite' >>.git/remotes/origin <3> +satellite$ edit/compile/test/commit +satellite$ git push origin <4> + +mothership$ cd frotz +mothership$ git checkout master +mothership$ git pull . satellite <5> + +<1> mothership machine has a frotz repository under your home +directory; clone from it to start a repository on the satellite +machine. +<2> clone creates this file by default. It arranges "git pull" +to fetch and store the master branch head of mothership machine +to local "origin" branch. +<3> arrange "git push" to push local "master" branch to +"satellite" branch of the mothership machine. +<4> push will stash our work away on "satellite" branch on the +mothership machine. You could use this as a back-up method. +<5> on mothership machine, merge the work done on the satellite +machine into the master branch. ------------ -Branch off of a specific tag:: +Branch off of a specific tag.:: + ------------ $ git checkout -b private2.6.14 v2.6.14 <1> @@ -252,7 +292,7 @@ commands in addition to the ones needed by participants. Examples ~~~~~~~~ -My typical GIT day:: +My typical GIT day.:: + ------------ $ git status <1> @@ -268,13 +308,12 @@ $ git checkout -b hold/linus && git am -3 -i -s -u ./+hold-linus <5> $ git checkout topic/one && git rebase master <6> $ git checkout pu && git reset --hard master <7> $ git pull . topic/one topic/two && git pull . hold/linus <8> -$ git fetch ko master:refs/tags/ko-master && - git show-branch master ko-master <9> -$ git push ko <10> $ git checkout maint -$ git cherry-pick master~4 <11> +$ git cherry-pick master~4 <9> $ compile/test -$ git tag -s -m 'GIT 0.99.9x' v0.99.9x <12> +$ git tag -s -m 'GIT 0.99.9x' v0.99.9x <10> +$ git fetch ko && git show-branch master maint 'tags/ko-*' <11> +$ git push ko <12> $ git push ko v0.99.9x <13> <1> see what I was in the middle of doing, if any. @@ -289,12 +328,20 @@ sign-offs. master, nor exposed as a part of a stable branch. <7> restart "pu" every time from the master. <8> and bundle topic branches still cooking. -<9> make sure I did not accidentally rewound master beyond what I -already pushed out. -<10> push out the bleeding edge. -<11> backport a critical fix. -<12> create a signed tag. -<13> push the tag out. +<9> backport a critical fix. +<10> create a signed tag. +<11> make sure I did not accidentally rewound master beyond what I +already pushed out. "ko" shorthand points at the repository I have +at kernel.org, and looks like this: +$ cat .git/remotes/ko +URL: kernel.org:/pub/scm/git/git.git +Pull: master:refs/tags/ko-master +Pull: maint:refs/tags/ko-maint +Push: master +Push: +pu +Push: maint +<12> push out the bleeding edge. +<13> push the tag out, too. ------------ @@ -317,21 +364,63 @@ and maintain access to the repository by developers. Examples ~~~~~~~~ -Run git-daemon to serve /pub/scm from inetd:: +Run git-daemon to serve /pub/scm from inetd.:: + ------------ $ grep git /etc/inet.conf -git stream tcp nowait nobody /usr/bin/git-daemon git-daemon --inetd --syslog --export-all /pub/scm +git stream tcp nowait nobody \ + /usr/bin/git-daemon git-daemon --inetd --syslog --export-all /pub/scm ------------ ++ +The actual configuration line should be on one line. -Give push/pull only access to developers:: +Give push/pull only access to developers.:: + ------------ -$ grep git /etc/shells -/usr/bin/git-shell -$ grep git /etc/passwd +$ grep git /etc/passwd <1> alice:x:1000:1000::/home/alice:/usr/bin/git-shell bob:x:1001:1001::/home/bob:/usr/bin/git-shell cindy:x:1002:1002::/home/cindy:/usr/bin/git-shell david:x:1003:1003::/home/david:/usr/bin/git-shell +$ grep git /etc/shells <2> +/usr/bin/git-shell + +<1> log-in shell is set to /usr/bin/git-shell, which does not +allow anything but "git push" and "git pull". The users should +get an ssh access to the machine. +<2> in many distributions /etc/shells needs to list what is used +as the login shell. +------------ + +CVS-style shared repository.:: ++ +------------ +$ grep git /etc/group <1> +git:x:9418:alice,bob,cindy,david +$ cd /home/devo.git +$ ls -l <2> + lrwxrwxrwx 1 david git 17 Dec 4 22:40 HEAD -> refs/heads/master + drwxrwsr-x 2 david git 4096 Dec 4 22:40 branches + -rw-rw-r-- 1 david git 84 Dec 4 22:40 config + -rw-rw-r-- 1 david git 58 Dec 4 22:40 description + drwxrwsr-x 2 david git 4096 Dec 4 22:40 hooks + -rw-rw-r-- 1 david git 37504 Dec 4 22:40 index + drwxrwsr-x 2 david git 4096 Dec 4 22:40 info + drwxrwsr-x 4 david git 4096 Dec 4 22:40 objects + drwxrwsr-x 4 david git 4096 Nov 7 14:58 refs + drwxrwsr-x 2 david git 4096 Dec 4 22:40 remotes +$ ls -l hooks/update <3> + -r-xr-xr-x 1 david git 3536 Dec 4 22:40 update +$ cat info/allowed-users <4> +refs/heads/master alice\|cindy +refs/heads/doc-update bob +refs/tags/v[0-9]* david + +<1> place the developers into the same git group. +<2> and make the shared repository writable by the group. +<3> use update-hook example by Carl from Documentation/howto/ +for branch policy control. +<4> alice and cindy can push into master, only bob can push into doc-update. +david is the release manager and is the only person who can +create and push version tags. ------------ -- 2.30.2