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Diffstat (limited to 'Documentation/git-read-tree.txt')
| -rw-r--r-- | Documentation/git-read-tree.txt | 52 |
1 files changed, 23 insertions, 29 deletions
diff --git a/Documentation/git-read-tree.txt b/Documentation/git-read-tree.txt index 5fa8bab..1c48c28 100644 --- a/Documentation/git-read-tree.txt +++ b/Documentation/git-read-tree.txt @@ -9,9 +9,8 @@ git-read-tree - Reads tree information into the index SYNOPSIS -------- [verse] -'git read-tree' [[-m [--trivial] [--aggressive] | --reset | --prefix=<prefix>] - [-u [--exclude-per-directory=<gitignore>] | -i]] - [--index-output=<file>] [--no-sparse-checkout] +'git read-tree' [(-m [--trivial] [--aggressive] | --reset | --prefix=<prefix>) + [-u | -i]] [--index-output=<file>] [--no-sparse-checkout] (--empty | <tree-ish1> [<tree-ish2> [<tree-ish3>]]) @@ -26,21 +25,22 @@ fast-forward (i.e. 2-way) merge, or a 3-way merge, with the `-m` flag. When used with `-m`, the `-u` flag causes it to also update the files in the work tree with the result of the merge. -Trivial merges are done by 'git read-tree' itself. Only conflicting paths -will be in unmerged state when 'git read-tree' returns. +Only trivial merges are done by 'git read-tree' itself. Only conflicting paths +will be in an unmerged state when 'git read-tree' returns. OPTIONS ------- -m:: Perform a merge, not just a read. The command will refuse to run if your index file has unmerged entries, - indicating that you have not finished previous merge you + indicating that you have not finished a previous merge you started. --reset:: Same as -m, except that unmerged entries are discarded instead - of failing. When used with `-u`, updates leading to loss of - working tree changes will not abort the operation. + of failing. When used with `-u`, updates leading to loss of + working tree changes or untracked files or directories will not + abort the operation. -u:: After a successful merge, update the files in the work @@ -88,21 +88,6 @@ OPTIONS The command will refuse to overwrite entries that already existed in the original index file. ---exclude-per-directory=<gitignore>:: - When running the command with `-u` and `-m` options, the - merge result may need to overwrite paths that are not - tracked in the current branch. The command usually - refuses to proceed with the merge to avoid losing such a - path. However this safety valve sometimes gets in the - way. For example, it often happens that the other - branch added a file that used to be a generated file in - your branch, and the safety valve triggers when you try - to switch to that branch after you ran `make` but before - running `make clean` to remove the generated file. This - option tells the command to read per-directory exclude - file (usually '.gitignore') and allows such an untracked - but explicitly ignored file to be overwritten. - --index-output=<file>:: Instead of writing the results out to `$GIT_INDEX_FILE`, write the resulting index in the named file. While the @@ -234,7 +219,7 @@ see which of the "local changes" that you made were carried forward by running `git diff-index --cached $M`. Note that this does not necessarily match what `git diff-index --cached $H` would have produced before such a two tree merge. This is because of cases -18 and 19 --- if you already had the changes in $M (e.g. maybe +18 and 19 -- if you already had the changes in $M (e.g. maybe you picked it up via e-mail in a patch form), `git diff-index --cached $H` would have told you about the change before this merge, but it would not show in `git diff-index --cached $M` @@ -390,9 +375,17 @@ have finished your work-in-progress), attempt the merge again. SPARSE CHECKOUT --------------- +Note: The skip-worktree capabilities in linkgit:git-update-index[1] +and `read-tree` predated the introduction of +linkgit:git-sparse-checkout[1]. Users are encouraged to use the +`sparse-checkout` command in preference to these plumbing commands for +sparse-checkout/skip-worktree related needs. However, the information +below might be useful to users trying to understand the pattern style +used in non-cone mode of the `sparse-checkout` command. + "Sparse checkout" allows populating the working directory sparsely. -It uses the skip-worktree bit (see linkgit:git-update-index[1]) to tell -Git whether a file in the working directory is worth looking at. +It uses the skip-worktree bit (see linkgit:git-update-index[1]) to +tell Git whether a file in the working directory is worth looking at. 'git read-tree' and other merge-based commands ('git merge', 'git checkout'...) can help maintaining the skip-worktree bitmap and working @@ -400,7 +393,8 @@ directory update. `$GIT_DIR/info/sparse-checkout` is used to define the skip-worktree reference bitmap. When 'git read-tree' needs to update the working directory, it resets the skip-worktree bit in the index based on this file, which uses the same syntax as .gitignore files. -If an entry matches a pattern in this file, skip-worktree will not be +If an entry matches a pattern in this file, or the entry corresponds to +a file present in the working tree, then skip-worktree will not be set on that entry. Otherwise, skip-worktree will be set. Then it compares the new skip-worktree value with the previous one. If @@ -435,8 +429,8 @@ support. SEE ALSO -------- -linkgit:git-write-tree[1]; linkgit:git-ls-files[1]; -linkgit:gitignore[5]; linkgit:git-sparse-checkout[1]; +linkgit:git-write-tree[1], linkgit:git-ls-files[1], +linkgit:gitignore[5], linkgit:git-sparse-checkout[1] GIT --- |