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Git v1.7.11 Release Notes
=========================
Updates since v1.7.10
---------------------
UI, Workflows & Features
* A new mode for push, "simple", which is a cross between "current"
and "upstream", has been introduced. "git push" without any refspec
will push the current branch out to the same name at the remote
repository only when it is set to track the branch with the same
name over there. The plan is to make this mode the new default
value when push.default is not configured.
* A couple of commands learned the "--column" option to produce
columnar output.
* A third-party tool "git subtree" is distributed in contrib/
* Error messages given when @{u} is used for a branch without its
upstream configured have been clatified.
* Even with "-q"uiet option, "checkout" used to report setting up
tracking. Also "branch" learned the "-q"uiet option to squelch
informational message.
* The smart-http backend used to always override GIT_COMMITTER_*
variables with REMOTE_USER and REMOTE_ADDR, but these variables are
now preserved when set.
* "include.path" mechanism of the configuration files learned to
understand "~/path" and "~user/path".
* "git am" learned the "--include" option, which is an opposite of
existing the "--exclude" option.
* When "git am -3" needs to fall back to an application to a
synthesized preimage followed by a 3-way merge, the paths that
needed such treatment are now reported to the end user, so that the
result in them can be eyeballed with extra care.
* The output from "diff/log --stat" used to always allocate 4 columns
to show the number of modified lines, but not anymore.
* "git difftool" learned the "--dir-diff" option to spawn external
diff tools that can compare two directory hierarchies at a time
after populating two temporary directories, instead of running an
instance of the external tool once per a file pair.
* The "fmt-merge-msg" command learns to list the primary contributors
involved in the side topic you are merging.
* The cases "git push" fails due to non-ff can be broken into three
categories; each case is given a separate advise message.
* "git rebase" learned to optionally keep commits that do not
introduce any change in the original history.
* "git push --recurse-submodules" learned to optionally look into the
histories of submodules bound to the superproject and push them
out.
* A 'snapshot' request to "gitweb" honors If-Modified-Since: header,
based on the commit date.
* "gitweb" learned to highlight the patch it outputs even more.
Foreign Interface
* "git svn" used to die with unwanted SIGPIPE when talking with HTTP
server that uses keep-alive.
* "git svn" learned to use platform specific authentication
providers, e.g. gnome-keyring, kwallet, etc.
* "git p4" has been moved out of contrib/ area and has seen more work
on importing labels as tags from (and exporting tags as labels to)
p4.
Performance and Internal Implementation (please report possible regressions)
* An experimental "version 4" format of the index file has been
introduced to reduce on-disk footprint and I/O overhead.
* The code to compute hash values for lines used by the internal diff
engine was optimized on little-endian machines, using the same
trick the kernel folks came up with.
* "git apply" had some memory leaks plugged.
* "git repack" used to write out unreachable objects as loose objects
when repacking, even if such loose objects will immediately pruned
due to its age.
* Setting up a revision traversal with many starting points was
inefficient as these were placed in a date-order priority queue
one-by-one. Now they are collected in the queue unordered first,
and sorted immediately before getting used.
* "git rev-parse --show-prefix" used to emit nothing when run at the
top-level of the working tree, but now it gives a blank line.
* Minor memory leak during unpack_trees (hence "merge" and "checkout"
to check out another branch) has been plugged.
* More lower-level commands learned to use the streaming API to read
from the object store without keeping everything in core.
* Because "sh" on the user's PATH may be utterly broken on some
systems, run-command API now uses SHELL_PATH, not /bin/sh, when
spawning an external command (not applicable to Windows port).
* The API to iterate over refs/ hierarchy has been tweaked to allow
walking only a subset of it more efficiently.
Also contains minor documentation updates and code clean-ups.
Fixes since v1.7.10
-------------------
Unless otherwise noted, all the fixes since v1.7.10 in the maintenance
releases are contained in this release (see release notes to them for
details).
* "git diff --stat" used to fully count a binary file with modified
execution bits whose contents is unmodified, which was not quite
right.
* "log -z --pretty=tformat:..." did not terminate each record with
NUL. The fix is not entirely correct when the output also asks for
--patch and/or --stat, though.
(merge fafd382 jk/maint-tformat-with-z later to maint).
* "git push" over smart-http lost progress output a few releases ago.
(merge e304aeb jk/maint-push-progress later to maint).
* A contrib script "rerere-train" did not work out of the box unless
user futzed with her $PATH.
(merge 53876fc jc/rerere-train later to maint).
* "log --graph" was not very friendly with "--stat" option and its
output had line breaks at wrong places.
(merge bafa16e lp/diffstat-with-graph later to maint).
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