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-rw-r--r--Documentation/gittutorial.txt47
1 files changed, 41 insertions, 6 deletions
diff --git a/Documentation/gittutorial.txt b/Documentation/gittutorial.txt
index 48d1454a90..c5d5596d89 100644
--- a/Documentation/gittutorial.txt
+++ b/Documentation/gittutorial.txt
@@ -26,6 +26,15 @@ First, note that you can get documentation for a command such as
$ 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:
@@ -299,9 +308,7 @@ alice$ git pull /home/bob/myrepo master
This merges the changes from Bob's "master" branch into Alice's
current branch. If Alice has made her own changes in the meantime,
-then she may need to manually fix any conflicts. (Note that the
-"master" argument in the above command is actually unnecessary, as it
-is the default.)
+then she may need to manually fix any conflicts.
The "pull" command thus performs two operations: it fetches changes
from a remote branch, then merges them into the current branch.
@@ -321,10 +328,37 @@ pulling, like this:
------------------------------------------------
alice$ git fetch /home/bob/myrepo master
-alice$ git log -p ..FETCH_HEAD
+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
@@ -554,7 +588,7 @@ list. When the history has lines of development that diverged and
then merged back together, the order in which 'git-log' presents
those commits is meaningless.
-Most projects with multiple contributors (such as the linux kernel,
+Most projects with multiple contributors (such as the Linux kernel,
or git itself) have frequent merges, and 'gitk' does a better job of
visualizing their history. For example,
@@ -606,7 +640,7 @@ digressions that may be interesting at this point are:
* linkgit:git-format-patch[1], linkgit:git-am[1]: These convert
series of git commits into emailed patches, and vice versa,
- useful for projects such as the linux kernel which rely heavily
+ useful for projects such as the Linux kernel which rely heavily
on emailed patches.
* linkgit:git-bisect[1]: When there is a regression in your
@@ -626,6 +660,7 @@ linkgit:gittutorial-2[7],
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]