diff options
| -rw-r--r-- | Documentation/tutorial.txt | 79 | ||||
| -rw-r--r-- | rsh.c | 2 | ||||
| -rw-r--r-- | t/t1200-tutorial.sh | 160 |
3 files changed, 218 insertions, 23 deletions
diff --git a/Documentation/tutorial.txt b/Documentation/tutorial.txt index 19da3e243..b9f737e96 100644 --- a/Documentation/tutorial.txt +++ b/Documentation/tutorial.txt @@ -51,7 +51,9 @@ your new project. You will now have a `.git` directory, and you can inspect that with `ls`. For your new empty project, it should show you three entries, among other things: - - a symlink called `HEAD`, pointing to `refs/heads/master` + - a symlink called `HEAD`, pointing to `refs/heads/master` (if your + platform does not have native symlinks, it is a file containing the + line "ref: refs/heads/master") + Don't worry about the fact that the file that the `HEAD` link points to doesn't even exist yet -- you haven't created the commit that will @@ -227,6 +229,7 @@ which will spit out ------------ diff --git a/hello b/hello +index 557db03..263414f 100644 --- a/hello +++ b/hello @@ -1 +1,2 @@ @@ -289,13 +292,16 @@ also wants to get a commit message on its standard input, and it will write out the resulting object name for the commit to its standard output. -And this is where we start using the `.git/HEAD` file. The `HEAD` file is -supposed to contain the reference to the top-of-tree, and since that's -exactly what `git-commit-tree` spits out, we can do this all with a simple -shell pipeline: +And this is where we create the `.git/refs/heads/master` file +which is pointed at by `HEAD`. This file is supposed to contain +the reference to the top-of-tree of the master branch, and since +that's exactly what `git-commit-tree` spits out, we can do this +all with a sequence of simple shell commands: ------------------------------------------------ -echo "Initial commit" | git-commit-tree $(git-write-tree) > .git/HEAD +tree=$(git-write-tree) +commit=$(echo 'Initial commit' | git-commit-tree $tree) +git-update-ref HEAD $(commit) ------------------------------------------------ which will say: @@ -691,7 +697,9 @@ other point in the history than the current `HEAD`, you can do so by just telling `git checkout` what the base of the checkout would be. In other words, if you have an earlier tag or branch, you'd just do - git checkout -b mybranch earlier-commit +------------ +git checkout -b mybranch earlier-commit +------------ and it would create the new branch `mybranch` at the earlier commit, and check out the state at that time. @@ -699,17 +707,29 @@ and check out the state at that time. You can always just jump back to your original `master` branch by doing - git checkout master +------------ +git checkout master +------------ (or any other branch-name, for that matter) and if you forget which branch you happen to be on, a simple - ls -l .git/HEAD +------------ +ls -l .git/HEAD +------------ -will tell you where it's pointing. To get the list of branches -you have, you can say +will tell you where it's pointing (Note that on platforms with bad or no +symlink support, you have to execute - git branch +------------ +cat .git/HEAD +------------ + +instead). To get the list of branches 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. @@ -717,7 +737,9 @@ There will be 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 - git branch <branchname> [startingpoint] +------------ +git branch <branchname> [startingpoint] +------------ which will simply _create_ the branch, but will not do anything further. You can then later -- once you decide that you want to actually develop @@ -843,7 +865,6 @@ $ git show-branch master mybranch ! [mybranch] Some work. -- + [master] Merged "mybranch" changes. -+ [master~1] Some fun. ++ [mybranch] Some work. ------------------------------------------------ @@ -870,8 +891,10 @@ Now, let's pretend you are the one who did all the work in to the `master` branch. Let's go back to `mybranch`, and run resolve to get the "upstream changes" back to your branch. - git checkout mybranch - git resolve HEAD master "Merge upstream changes." +------------ +git checkout mybranch +git resolve HEAD master "Merge upstream changes." +------------ This outputs something like this (the actual commit object names would be different) @@ -1087,13 +1110,17 @@ i.e. `<project>.git`. Let's create such a public repository for project `my-git`. After logging into the remote machine, create an empty directory: - mkdir my-git.git +------------ +mkdir my-git.git +------------ Then, make that directory into a git repository by running `git init-db`, but this time, since its name is not the usual `.git`, we do things slightly differently: - GIT_DIR=my-git.git git-init-db +------------ +GIT_DIR=my-git.git git-init-db +------------ Make sure this directory is available for others you want your changes to be pulled by via the transport of your choice. Also @@ -1117,7 +1144,9 @@ Your "public repository" is now ready to accept your changes. Come back to the machine you have your private repository. From there, run this command: - git push <public-host>:/path/to/my-git.git master +------------ +git push <public-host>:/path/to/my-git.git master +------------ This synchronizes your public repository to match the named branch head (i.e. `master` in this case) and objects reachable @@ -1127,7 +1156,9 @@ As a real example, this is how I update my public git repository. Kernel.org mirror network takes care of the propagation to other publicly visible machines: - git push master.kernel.org:/pub/scm/git/git.git/ +------------ +git push master.kernel.org:/pub/scm/git/git.git/ +------------ Packing your repository @@ -1140,7 +1171,9 @@ not so convenient to transport over the network. Since git objects are immutable once they are created, there is a way to optimize the storage by "packing them together". The command - git repack +------------ +git repack +------------ will do it for you. If you followed the tutorial examples, you would have accumulated about 17 objects in `.git/objects/??/` @@ -1164,7 +1197,9 @@ Our programs are always perfect ;-). Once you have packed objects, you do not need to leave the unpacked objects that are contained in the pack file anymore. - git prune-packed +------------ +git prune-packed +------------ would remove them for you. @@ -68,7 +68,7 @@ int setup_connection(int *fd_in, int *fd_out, const char *remote_prog, if (!path) { return error("Bad URL: %s", url); } - /* $GIT_RSH <host> "env GIR_DIR=<path> <remote_prog> <args...>" */ + /* $GIT_RSH <host> "env GIT_DIR=<path> <remote_prog> <args...>" */ sizen = COMMAND_SIZE; posn = command; of = 0; diff --git a/t/t1200-tutorial.sh b/t/t1200-tutorial.sh new file mode 100644 index 000000000..35db799ed --- /dev/null +++ b/t/t1200-tutorial.sh @@ -0,0 +1,160 @@ +#!/bin/sh +# +# Copyright (c) 2005 Johannes Schindelin +# + +test_description='Test git-rev-parse with different parent options' + +. ./test-lib.sh + +echo "Hello World" > hello +echo "Silly example" > example + +git-update-index --add hello example + +test_expect_success 'blob' "test blob = \"$(git-cat-file -t 557db03)\"" + +test_expect_success 'blob 557db03' "test \"Hello World\" = \"$(git-cat-file blob 557db03)\"" + +echo "It's a new day for git" >>hello +cat > diff.expect << EOF +diff --git a/hello b/hello +index 557db03..263414f 100644 +--- a/hello ++++ b/hello +@@ -1 +1,2 @@ + Hello World ++It's a new day for git +EOF +git-diff-files -p > diff.output +test_expect_success 'git-diff-files -p' 'cmp diff.expect diff.output' +git diff > diff.output +test_expect_success 'git diff' 'cmp diff.expect diff.output' + +tree=$(git-write-tree 2>/dev/null) + +test_expect_success 'tree' "test 8988da15d077d4829fc51d8544c097def6644dbb = $tree" + +output="$(echo "Initial commit" | git-commit-tree $(git-write-tree) 2>&1 > .git/refs/heads/master)" + +test_expect_success 'commit' "test 'Committing initial tree 8988da15d077d4829fc51d8544c097def6644dbb' = \"$output\"" + +git-diff-index -p HEAD > diff.output +test_expect_success 'git-diff-index -p HEAD' 'cmp diff.expect diff.output' + +git diff HEAD > diff.output +test_expect_success 'git diff HEAD' 'cmp diff.expect diff.output' + +#rm hello +#test_expect_success 'git-read-tree --reset HEAD' "git-read-tree --reset HEAD ; test \"hello: needs update\" = \"$(git-update-index --refresh)\"" + +cat > whatchanged.expect << EOF +diff-tree VARIABLE (from root) +Author: VARIABLE +Date: VARIABLE + + Initial commit + +diff --git a/example b/example +new file mode 100644 +index 0000000..f24c74a +--- /dev/null ++++ b/example +@@ -0,0 +1 @@ ++Silly example +diff --git a/hello b/hello +new file mode 100644 +index 0000000..557db03 +--- /dev/null ++++ b/hello +@@ -0,0 +1 @@ ++Hello World +EOF + +git-whatchanged -p --root | \ + sed -e "1s/^\(.\{10\}\).\{40\}/\1VARIABLE/" \ + -e "2,3s/^\(.\{8\}\).*$/\1VARIABLE/" \ +> whatchanged.output +test_expect_success 'git-whatchanged -p --root' 'cmp whatchanged.expect whatchanged.output' + +git tag my-first-tag +test_expect_success 'git tag my-first-tag' 'cmp .git/refs/heads/master .git/refs/tags/my-first-tag' + +# TODO: test git-clone + +git checkout -b mybranch +test_expect_success 'git checkout -b mybranch' 'cmp .git/refs/heads/master .git/refs/heads/mybranch' + +cat > branch.expect <<EOF + master +* mybranch +EOF + +git branch > branch.output +test_expect_success 'git branch' 'cmp branch.expect branch.output' + +git checkout mybranch +echo "Work, work, work" >>hello +git commit -m 'Some work.' hello + +git checkout master + +echo "Play, play, play" >>hello +echo "Lots of fun" >>example +git commit -m 'Some fun.' hello example + +test_expect_failure 'git resolve now fails' 'git resolve HEAD mybranch "Merge work in mybranch"' + +cat > hello << EOF +Hello World +It's a new day for git +Play, play, play +Work, work, work +EOF + +git commit -m 'Merged "mybranch" changes.' hello + +cat > show-branch.expect << EOF +* [master] Merged "mybranch" changes. + ! [mybranch] Some work. +-- ++ [master] Merged "mybranch" changes. +++ [mybranch] Some work. +EOF + +git show-branch master mybranch > show-branch.output +test_expect_success 'git show-branch' 'cmp show-branch.expect show-branch.output' + +git checkout mybranch + +cat > resolve.expect << EOF +Updating from VARIABLE to VARIABLE. + example | 1 + + hello | 1 + + 2 files changed, 2 insertions(+), 0 deletions(-) +EOF + +git resolve HEAD master "Merge upstream changes." | \ + sed -e "1s/[0-9a-f]\{40\}/VARIABLE/g" > resolve.output +test_expect_success 'git resolve' 'cmp resolve.expect resolve.output' + +cat > show-branch2.expect << EOF +! [master] Merged "mybranch" changes. + * [mybranch] Merged "mybranch" changes. +-- +++ [master] Merged "mybranch" changes. +EOF + +git show-branch master mybranch > show-branch2.output +test_expect_success 'git show-branch' 'cmp show-branch2.expect show-branch2.output' + +# TODO: test git fetch + +# TODO: test git push + +test_expect_success 'git repack' 'git repack' +test_expect_success 'git prune-packed' 'git prune-packed' +test_expect_failure '-> only packed objects' 'find -type f .git/objects/[0-9a-f][0-9a-f]' + +test_done + |