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index e4248b62415de4401b7ed731ada93519ab4c0d31..7892244ef19d507379489de0cc81ad18b936c6af 100644 (file)
$ man git-log
------------------------------------------------
+or:
+
+------------------------------------------------
+$ git help log
+------------------------------------------------
+
+With the latter, you can use the manual viewer of your choice; see
+linkgit:git-help[1] for more information.
+
It is a good idea to introduce yourself to git with your name and
public email address before doing any operation. The easiest
way to do so is:
The "pull" command thus performs two operations: it fetches changes
from a remote branch, then merges them into the current branch.
+Note that in general, Alice would want her local changes committed before
+initiating this "pull". If Bob's work conflicts with what Alice did since
+their histories forked, Alice will use her working tree and the index to
+resolve conflicts, and existing local changes will interfere with the
+conflict resolution process (git will still perform the fetch but will
+refuse to merge --- Alice will have to get rid of her local changes in
+some way and pull again when this happens).
+
+Alice can peek at what Bob did without merging first, using the "fetch"
+command; this allows Alice to inspect what Bob did, using a special
+symbol "FETCH_HEAD", in order to determine if he has anything worth
+pulling, like this:
+
+------------------------------------------------
+alice$ git fetch /home/bob/myrepo master
+alice$ git log -p HEAD..FETCH_HEAD
+------------------------------------------------
+
+This operation is safe even if Alice has uncommitted local changes.
+The range notation HEAD..FETCH_HEAD" means "show everything that is reachable
+from the FETCH_HEAD but exclude anything that is reachable from HEAD.
+Alice already knows everything that leads to her current state (HEAD),
+and reviewing what Bob has in his state (FETCH_HEAD) that she has not
+seen with this command
+
+If Alice wants to visualize what Bob did since their histories forked
+she can issue the following command:
+
+------------------------------------------------
+$ gitk HEAD..FETCH_HEAD
+------------------------------------------------
+
+This uses the same two-dot range notation we saw earlier with 'git log'.
+
+Alice may want to view what both of them did since they forked.
+She can use three-dot form instead of the two-dot form:
+
+------------------------------------------------
+$ gitk HEAD...FETCH_HEAD
+------------------------------------------------
+
+This means "show everything that is reachable from either one, but
+exclude anything that is reachable from both of them".
+
+Please note that these range notation can be used with both gitk
+and "git log".
+
+After inspecting what Bob did, if there is nothing urgent, Alice may
+decide to continue working without pulling from Bob. If Bob's history
+does have something Alice would immediately need, Alice may choose to
+stash her work-in-progress first, do a "pull", and then finally unstash
+her work-in-progress on top of the resulting history.
+
When you are working in a small closely knit group, it is not
unusual to interact with the same repository over and over
again. By defining 'remote' repository shorthand, you can make
alice$ git remote add bob /home/bob/myrepo
------------------------------------------------
-With this, Alice can perform the first operation alone using the
+With this, Alice can perform the first part of the "pull" operation alone using the
'git-fetch' command without merging them with her own branch,
using:
linkgit:gitcvs-migration[7],
linkgit:gitcore-tutorial[7],
linkgit:gitglossary[7],
+linkgit:git-help[1],
link:everyday.html[Everyday git],
link:user-manual.html[The Git User's Manual]