diff options
Diffstat (limited to 'Documentation/core-tutorial.txt')
| -rw-r--r-- | Documentation/core-tutorial.txt | 41 |
1 files changed, 24 insertions, 17 deletions
diff --git a/Documentation/core-tutorial.txt b/Documentation/core-tutorial.txt index c3f0be535d..bd6cd41245 100644 --- a/Documentation/core-tutorial.txt +++ b/Documentation/core-tutorial.txt @@ -553,13 +553,8 @@ can explore on your own. [NOTE] Most likely, you are not directly using the core -git Plumbing commands, but using Porcelain like Cogito on top -of it. Cogito works a bit differently and you usually do not -have to run `git-update-index` yourself for changed files (you -do tell underlying git about additions and removals via -`cg-add` and `cg-rm` commands). Just before you make a commit -with `cg-commit`, Cogito figures out which files you modified, -and runs `git-update-index` on them for you. +git Plumbing commands, but using Porcelain such as `git-add`, `git-rm' +and `git-commit'. Tagging a version @@ -686,8 +681,8 @@ $ git reset and in fact a lot of the common git command combinations can be scripted with the `git xyz` interfaces. You can learn things by just looking -at what the various git scripts do. For example, `git reset` is the -above two lines implemented in `git-reset`, but some things like +at what the various git scripts do. For example, `git reset` used to be +the above two lines implemented in `git-reset`, but some things like `git status` and `git commit` are slightly more complex scripts around the basic git commands. @@ -805,8 +800,8 @@ you have, you can say $ git branch ------------ -which is nothing more than a simple script around `ls .git/refs/heads`. -There will be asterisk in front of the branch you are currently on. +which used to be nothing more than a simple script around `ls .git/refs/heads`. +There will be an asterisk in front of the branch you are currently on. Sometimes you may wish to create a new branch _without_ actually checking it out and switching to it. If so, just use the command @@ -936,12 +931,13 @@ Another useful tool, especially if you do not always work in X-Window environment, is `git show-branch`. ------------------------------------------------ -$ git show-branch --topo-order master mybranch +$ git-show-branch --topo-order --more=1 master mybranch * [master] Merge work in mybranch ! [mybranch] Some work. -- - [master] Merge work in mybranch *+ [mybranch] Some work. +* [master^] Some fun. ------------------------------------------------ The first two lines indicate that it is showing the two branches @@ -952,17 +948,29 @@ the later output lines is used to show commits contained in the `master` branch, and the second column for the `mybranch` branch. Three commits are shown along with their log messages. All of them have non blank characters in the first column (`*` -shows an ordinary commit on the current branch, `.` is a merge commit), which +shows an ordinary commit on the current branch, `-` is a merge commit), which means they are now part of the `master` branch. Only the "Some work" commit has the plus `+` character in the second column, because `mybranch` has not been merged to incorporate these commits from the master branch. The string inside brackets before the commit log message is a short name you can use to name the commit. In the above example, 'master' and 'mybranch' -are branch heads. 'master~1' is the first parent of 'master' +are branch heads. 'master^' is the first parent of 'master' branch head. Please see 'git-rev-parse' documentation if you see more complex cases. +[NOTE] +Without the '--more=1' option, 'git-show-branch' would not output the +'[master^]' commit, as '[mybranch]' commit is a common ancestor of +both 'master' and 'mybranch' tips. Please see 'git-show-branch' +documentation for details. + +[NOTE] +If there were more commits on the 'master' branch after the merge, the +merge commit itself would not be shown by 'git-show-branch' by +default. You would need to provide '--sparse' option to make the +merge commit visible in this case. + Now, let's pretend you are the one who did all the work in `mybranch`, and the fruit of your hard work has finally been merged to the `master` branch. Let's go back to `mybranch`, and run @@ -1188,7 +1196,7 @@ $ mb=$(git-merge-base HEAD mybranch) The command writes the commit object name of the common ancestor to the standard output, so we captured its output to a variable, -because we will be using it in the next step. BTW, the common +because we will be using it in the next step. By the way, the common ancestor commit is the "New day." commit in this case. You can tell it by: @@ -1454,8 +1462,7 @@ Although git is a truly distributed system, it is often convenient to organize your project with an informal hierarchy of developers. Linux kernel development is run this way. There is a nice illustration (page 17, "Merges to Mainline") in -link:http://www.xenotime.net/linux/mentor/linux-mentoring-2006.pdf -[Randy Dunlap's presentation]. +link:http://www.xenotime.net/linux/mentor/linux-mentoring-2006.pdf[Randy Dunlap's presentation]. It should be stressed that this hierarchy is purely *informal*. There is nothing fundamental in git that enforces the "chain of |