From: Junio C Hamano Date: Fri, 4 Nov 2005 08:06:20 +0000 (-0800) Subject: Documentation: -merge and -pull: describe merge strategies. X-Git-Tag: v0.99.9d^2~8 X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=3746501664e3fcf6c44080cb599b50bf9cbea2be;p=git.git Documentation: -merge and -pull: describe merge strategies. ... and give a couple of examples of running 'git pull' against local repository. Signed-off-by: Junio C Hamano --- diff --git a/Documentation/Makefile b/Documentation/Makefile index 3cfa360a9..741f14cfa 100644 --- a/Documentation/Makefile +++ b/Documentation/Makefile @@ -52,10 +52,15 @@ install: man # 'include' dependencies $(patsubst %.txt,%.1,$(wildcard git-diff-*.txt)): \ diff-format.txt diff-options.txt -$(patsubst %,%.1,git-fetch git-pull git-push): pull-fetch-param.txt $(patsubst %.txt,%.html,$(wildcard git-diff-*.txt)): \ diff-format.txt diff-options.txt + +$(patsubst %,%.1,git-fetch git-pull git-push): pull-fetch-param.txt $(patsubst %,%.html,git-fetch git-pull git-push): pull-fetch-param.txt + +$(patsubst %,%.1,git-merge git-pull): merge-pull-opts.txt +$(patsubst %,%.html,git-merge git-pull): merge-pull-opts.txt + git.7: ../README clean: diff --git a/Documentation/git-merge.txt b/Documentation/git-merge.txt index 8c9c4d87e..da6537d91 100644 --- a/Documentation/git-merge.txt +++ b/Documentation/git-merge.txt @@ -8,7 +8,7 @@ git-merge - Grand Unified Merge Driver SYNOPSIS -------- -'git-merge' [-n] [-s ]... ... +'git-merge' [-n] [--no-commit] [-s ]... ... DESCRIPTION @@ -19,14 +19,7 @@ which drives multiple merge strategy scripts. OPTIONS ------- --n:: - Do not show diffstat at the end of the merge. - --s :: - use that merge strategy; can be given more than once to - specify them in the order they should be tried. If - there is no `-s` option, built-in list of strategies is - used instead. +include::merge-pull-opts.txt[] :: The commit message to be used for the merge commit (in case diff --git a/Documentation/git-pull.txt b/Documentation/git-pull.txt index cef4c0ae3..2f8a9ce2f 100644 --- a/Documentation/git-pull.txt +++ b/Documentation/git-pull.txt @@ -8,7 +8,7 @@ git-pull - Pull and merge from another repository. SYNOPSIS -------- -'git-pull' ... +'git-pull' ... DESCRIPTION @@ -32,6 +32,72 @@ include::pull-fetch-param.txt[] existing contents of $GIT_DIR/FETCH_HEAD. Without this option old data in $GIT_DIR/FETCH_HEAD will be overwritten. +include::merge-pull-opts.txt[] + + +MERGE STRATEGIES +---------------- + +resolve:: + This can only resolve two heads (i.e. the current branch + and another branch you pulled from) using 3-way merge + algorithm. It tries to carefully detect criss-cross + merge ambiguities and is considered generally safe and + fast. This is the default merge strategy when pulling + one branch. + +recursive:: + This can only resolve two heads using 3-way merge + algorithm. When there are more than one common + ancestors that can be used for 3-way merge, it creates a + merged tree of the common ancestores and uses that as + the reference tree for the 3-way merge. This has been + reported to result in fewer merge conflicts without + causing mis-merges by tests done on actual merge commits + taken from Linux 2.6 kernel development history. + Additionally this can detect and handle merges involving + renames. + +octopus:: + This resolves more than two-head case, but refuses to do + complex merge that needs manual resolution. It is + primarily meant to be used for bundling topic branch + heads together. This is the default merge strategy when + pulling more than one branch. + +ours:: + This resolves any number of heads, but the result of the + merge is always the current branch head. It is meant to + be used to supersede old development history of side + branches. + + +EXAMPLES +-------- + +git pull, git pull origin:: + Fetch the default head from the repository you cloned + from and merge it into your current branch. + +git pull -s ours . obsolete:: + Merge local branch `obsolete` into the current branch, + using `ours` merge strategy. + +git pull . fixes enhancements:: + Bundle local branch `fixes` and `enhancements` on top of + the current branch, making an Octopus merge. + +git pull --no-commit . maint:: + Merge local branch `maint` into the current branch, but + do not make a commit automatically. This can be used + when you want to include further changes to the merge, + or want to write your own merge commit message. ++ +You should refrain from abusing this option to sneak substantial +changes into a merge commit. Small fixups like bumping +release/version name would be acceptable. + + Author ------ Written by Linus Torvalds diff --git a/Documentation/merge-pull-opts.txt b/Documentation/merge-pull-opts.txt new file mode 100644 index 000000000..d03fd1617 --- /dev/null +++ b/Documentation/merge-pull-opts.txt @@ -0,0 +1,13 @@ +-n, --no-summary:: + Do not show diffstat at the end of the merge. + +--no-commit:: + Perform the merge but pretend the merge failed and do + not autocommit. + +-s :: + use that merge strategy; can be given more than once to + specify them in the order they should be tried. If + there is no `-s` option, built-in list of strategies is + used instead (`git-merge-resolve` when merging a single + head, `git-merge-octopus` otherwise).