Merge tag 'v2.7.0'

Git 2.7

* tag 'v2.7.0': (539 commits)
  Git 2.7
  Git 2.6.5
  l10n: de.po: translate 68 new messages
  l10n: de.po: improve some translations
  Git 2.7-rc3
  l10n: ru.po: update Russian translation
  l10n: Updated Bulgarian translation of git (2477t,0f,0u)
  l10n: ca.po: update translation
  l10n: zh_CN: for git v2.7.0 l10n round 2
  l10n: sv.po: Update Swedish translation (2477t0f0u)
  l10n: sv: Fix bad translation
  l10n: fr.po v2.7.0 round 2 (2477t)
  Git 2.7-rc2
  push: don't mark options of recurse-submodules for translation
  l10n: git.pot: v2.7.0 round 2 (2 new, 2 removed)
  t1401: test reflog creation for git-symbolic-ref
  symbolic-ref: propagate error code from create_symref()
  git-p4: reduce number of server queries for fetches
  git-p4: support multiple depot paths in p4 submit
  Update release notes to 2.7
  ...

.gitignore

@@ -158,6 +158,7 @@
 /git-status
 /git-stripspace
 /git-submodule
+/git-submodule--helper
 /git-svn
 /git-symbolic-ref
 /git-tag

Documentation/RelNotes/1.7.7.txt

@@ -84,7 +84,7 @@ Updates since v1.7.6
    logic used by "git diff" to determine the hunk header.
 
  * Invoking the low-level "git http-fetch" without "-a" option (which
-   git itself never did---normal users should not have to worry about
+   git itself never did--normal users should not have to worry about
    this) is now deprecated.
 
  * The "--decorate" option to "git log" and its family learned to

Documentation/RelNotes/1.8.3.1.txt

@@ -1,5 +1,5 @@
 Git v1.8.3.1 Release Notes
-========================
+==========================
 
 Fixes since v1.8.3
 ------------------

Documentation/RelNotes/1.8.4.1.txt

@@ -1,5 +1,5 @@
 Git v1.8.4.1 Release Notes
-========================
+==========================
 
 Fixes since v1.8.4
 ------------------

Documentation/RelNotes/1.8.4.2.txt

@@ -1,5 +1,5 @@
 Git v1.8.4.2 Release Notes
-========================
+==========================
 
 Fixes since v1.8.4.1
 --------------------

Documentation/RelNotes/1.8.4.3.txt

@@ -1,5 +1,5 @@
 Git v1.8.4.3 Release Notes
-========================
+==========================
 
 Fixes since v1.8.4.2
 --------------------

Documentation/RelNotes/1.8.4.4.txt

@@ -1,5 +1,5 @@
 Git v1.8.4.4 Release Notes
-========================
+==========================
 
 Fixes since v1.8.4.3
 --------------------

Documentation/RelNotes/1.9.0.txt

@@ -177,7 +177,7 @@ Performance, Internal Implementation, etc.
  * The naming convention of the packfiles has been updated; it used to
    be based on the enumeration of names of the objects that are
    contained in the pack, but now it also depends on how the packed
-   result is represented---packing the same set of objects using
+   result is represented--packing the same set of objects using
    different settings (or delta order) would produce a pack with
    different name.
 

Documentation/RelNotes/2.3.10.txt

@@ -0,0 +1,18 @@
+Git v2.3.10 Release Notes
+=========================
+
+Fixes since v2.3.9
+------------------
+
+ * xdiff code we use to generate diffs is not prepared to handle
+   extremely large files.  It uses "int" in many places, which can
+   overflow if we have a very large number of lines or even bytes in
+   our input files, for example.  Cap the input size to soemwhere
+   around 1GB for now.
+
+ * Some protocols (like git-remote-ext) can execute arbitrary code
+   found in the URL.  The URLs that submodules use may come from
+   arbitrary sources (e.g., .gitmodules files in a remote
+   repository), and can hurt those who blindly enable recursive
+   fetch.  Restrict the allowed protocols to well known and safe
+   ones.

Documentation/RelNotes/2.4.10.txt

@@ -0,0 +1,18 @@
+Git v2.4.10 Release Notes
+=========================
+
+Fixes since v2.4.9
+------------------
+
+ * xdiff code we use to generate diffs is not prepared to handle
+   extremely large files.  It uses "int" in many places, which can
+   overflow if we have a very large number of lines or even bytes in
+   our input files, for example.  Cap the input size to soemwhere
+   around 1GB for now.
+
+ * Some protocols (like git-remote-ext) can execute arbitrary code
+   found in the URL.  The URLs that submodules use may come from
+   arbitrary sources (e.g., .gitmodules files in a remote
+   repository), and can hurt those who blindly enable recursive
+   fetch.  Restrict the allowed protocols to well known and safe
+   ones.

Documentation/RelNotes/2.5.4.txt

@@ -0,0 +1,18 @@
+Git v2.5.4 Release Notes
+========================
+
+Fixes since v2.5.4
+------------------
+
+ * xdiff code we use to generate diffs is not prepared to handle
+   extremely large files.  It uses "int" in many places, which can
+   overflow if we have a very large number of lines or even bytes in
+   our input files, for example.  Cap the input size to soemwhere
+   around 1GB for now.
+
+ * Some protocols (like git-remote-ext) can execute arbitrary code
+   found in the URL.  The URLs that submodules use may come from
+   arbitrary sources (e.g., .gitmodules files in a remote
+   repository), and can hurt those who blindly enable recursive
+   fetch.  Restrict the allowed protocols to well known and safe
+   ones.

Documentation/RelNotes/2.6.1.txt

@@ -0,0 +1,18 @@
+Git v2.6.1 Release Notes
+========================
+
+Fixes since v2.6
+----------------
+
+ * xdiff code we use to generate diffs is not prepared to handle
+   extremely large files.  It uses "int" in many places, which can
+   overflow if we have a very large number of lines or even bytes in
+   our input files, for example.  Cap the input size to soemwhere
+   around 1GB for now.
+
+ * Some protocols (like git-remote-ext) can execute arbitrary code
+   found in the URL.  The URLs that submodules use may come from
+   arbitrary sources (e.g., .gitmodules files in a remote
+   repository), and can hurt those who blindly enable recursive
+   fetch.  Restrict the allowed protocols to well known and safe
+   ones.

Documentation/RelNotes/2.6.2.txt

@@ -0,0 +1,65 @@
+Git v2.6.2 Release Notes
+========================
+
+Fixes since v2.6.1
+------------------
+
+ * There were some classes of errors that "git fsck" diagnosed to its
+   standard error that did not cause it to exit with non-zero status.
+
+ * A test script for the HTTP service had a timing dependent bug,
+   which was fixed.
+
+ * Performance-measurement tests did not work without an installed Git.
+
+ * On a case insensitive filesystems, setting GIT_WORK_TREE variable
+   using a random cases that does not agree with what the filesystem
+   thinks confused Git that it wasn't inside the working tree.
+
+ * When "git am" was rewritten as a built-in, it stopped paying
+   attention to user.signingkey, which was fixed.
+
+ * After "git checkout --detach", "git status" reported a fairly
+   useless "HEAD detached at HEAD", instead of saying at which exact
+   commit.
+
+ * "git rebase -i" had a minor regression recently, which stopped
+   considering a line that begins with an indented '#' in its insn
+   sheet not a comment, which is now fixed.
+
+ * Description of the "log.follow" configuration variable in "git log"
+   documentation is now also copied to "git config" documentation.
+
+ * Allocation related functions and stdio are unsafe things to call
+   inside a signal handler, and indeed killing the pager can cause
+   glibc to deadlock waiting on allocation mutex as our signal handler
+   tries to free() some data structures in wait_for_pager().  Reduce
+   these unsafe calls.
+
+ * The way how --ref/--notes to specify the notes tree reference are
+   DWIMmed was not clearly documented.
+
+ * Customization to change the behaviour with "make -w" and "make -s"
+   in our Makefile was broken when they were used together.
+
+ * The Makefile always runs the library archiver with hardcoded "crs"
+   options, which was inconvenient for exotic platforms on which
+   people want to use programs with totally different set of command
+   line options.
+
+ * The ssh transport, just like any other transport over the network,
+   did not clear GIT_* environment variables, but it is possible to
+   use SendEnv and AcceptEnv to leak them to the remote invocation of
+   Git, which is not a good idea at all.  Explicitly clear them just
+   like we do for the local transport.
+
+ * "git blame --first-parent v1.0..v2.0" was not rejected but did not
+   limit the blame to commits on the first parent chain.
+
+ * Very small number of options take a parameter that is optional
+   (which is not a great UI element as they can only appear at the end
+   of the command line).  Add notice to documentation of each and
+   every one of them.
+
+Also contains typofixes, documentation updates and trivial code
+clean-ups.

Documentation/RelNotes/2.6.3.txt

@@ -0,0 +1,111 @@
+Git v2.6.3 Release Notes
+========================
+
+Fixes since v2.6.2
+------------------
+
+ * The error message from "git blame --contents --reverse" incorrectly
+   talked about "--contents --children".
+
+ * "git merge-file" tried to signal how many conflicts it found, which
+   obviously would not work well when there are too many of them.
+
+ * The name-hash subsystem that is used to cope with case insensitive
+   filesystems keeps track of directories and their on-filesystem
+   cases for all the paths in the index by holding a pointer to a
+   randomly chosen cache entry that is inside the directory (for its
+   ce->ce_name component).  This pointer was not updated even when the
+   cache entry was removed from the index, leading to use after free.
+   This was fixed by recording the path for each directory instead of
+   borrowing cache entries and restructuring the API somewhat.
+
+ * When the "git am" command was reimplemented in C, "git am -3" had a
+   small regression where it is aborted in its error handling codepath
+   when underlying merge-recursive failed in some ways.
+
+ * The synopsis text and the usage string of subcommands that read
+   list of things from the standard input are often shown as if they
+   only take input from a file on a filesystem, which was misleading.
+
+ * A couple of commands still showed "[options]" in their usage string
+   to note where options should come on their command line, but we
+   spell that "[<options>]" in most places these days.
+
+ * The submodule code has been taught to work better with separate
+   work trees created via "git worktree add".
+
+ * When "git gc --auto" is backgrounded, its diagnosis message is
+   lost.  It now is saved to a file in $GIT_DIR and is shown next time
+   the "gc --auto" is run.
+
+ * Work around "git p4" failing when the P4 depot records the contents
+   in UTF-16 without UTF-16 BOM.
+
+ * Recent update to "rebase -i" that tries to sanity check the edited
+   insn sheet before it uses it has become too picky on Windows where
+   CRLF left by the editor is turned into a trailing CR on the line
+   read via the "read" built-in command.
+
+ * "git clone --dissociate" runs a big "git repack" process at the
+   end, and it helps to close file descriptors that are open on the
+   packs and their idx files before doing so on filesystems that
+   cannot remove a file that is still open.
+
+ * Correct "git p4 --detect-labels" so that it does not fail to create
+   a tag that points at a commit that is also being imported.
+
+ * The internal stripspace() function has been moved to where it
+   logically belongs to, i.e. strbuf API, and the command line parser
+   of "git stripspace" has been updated to use the parse_options API.
+
+ * Prepare for Git on-disk repository representation to undergo
+   backward incompatible changes by introducing a new repository
+   format version "1", with an extension mechanism.
+
+ * "git gc" used to barf when a symbolic ref has gone dangling
+   (e.g. the branch that used to be your upstream's default when you
+   cloned from it is now gone, and you did "fetch --prune").
+
+ * The normalize_ceiling_entry() function does not muck with the end
+   of the path it accepts, and the real world callers do rely on that,
+   but a test insisted that the function drops a trailing slash.
+
+ * "git gc" is safe to run anytime only because it has the built-in
+   grace period to protect young objects.  In order to run with no
+   grace period, the user must make sure that the repository is
+   quiescent.
+
+ * A recent "filter-branch --msg-filter" broke skipping of the commit
+   object header, which is fixed.
+
+ * "git --literal-pathspecs add -u/-A" without any command line
+   argument misbehaved ever since Git 2.0.
+
+ * Merging a branch that removes a path and another that changes the
+   mode bits on the same path should have conflicted at the path, but
+   it didn't and silently favoured the removal.
+
+ * "git imap-send" did not compile well with older version of cURL library.
+
+ * The linkage order of libraries was wrong in places around libcurl.
+
+ * It was not possible to use a repository-lookalike created by "git
+   worktree add" as a local source of "git clone".
+
+ * When "git send-email" wanted to talk over Net::SMTP::SSL,
+   Net::Cmd::datasend() did not like to be fed too many bytes at the
+   same time and failed to send messages.  Send the payload one line
+   at a time to work around the problem.
+
+ * We peek objects from submodule's object store by linking it to the
+   list of alternate object databases, but the code to do so forgot to
+   correctly initialize the list.
+
+ * "git status --branch --short" accessed beyond the constant string
+   "HEAD", which has been corrected.
+
+ * "git daemon" uses "run_command()" without "finish_command()", so it
+   needs to release resources itself, which it forgot to do.
+
+Also contains typofixes, documentation updates and trivial code
+clean-ups.

Documentation/RelNotes/2.6.4.txt

@@ -0,0 +1,63 @@
+Git v2.6.4 Release Notes
+========================
+
+Fixes since v2.6.3
+------------------
+
+ * The "configure" script did not test for -lpthread correctly, which
+   upset some linkers.
+
+ * Add support for talking http/https over socks proxy.
+
+ * Portability fix for Windows, which may rewrite $SHELL variable using
+   non-POSIX paths.
+
+ * We now consistently allow all hooks to ignore their standard input,
+   rather than having git complain of SIGPIPE.
+
+ * Fix shell quoting in contrib script.
+
+ * Test portability fix for a topic in v2.6.1.
+
+ * Allow tilde-expansion in some http config variables.
+
+ * Give a useful special case "diff/show --word-diff-regex=." as an
+   example in the documentation.
+
+ * Fix for a corner case in filter-branch.
+
+ * Make git-p4 work on a detached head.
+
+ * Documentation clarification for "check-ignore" without "--verbose".
+
+ * Just like the working tree is cleaned up when the user cancelled
+   submission in P4Submit.applyCommit(), clean up the mess if "p4
+   submit" fails.
+
+ * Having a leftover .idx file without corresponding .pack file in
+   the repository hurts performance; "git gc" learned to prune them.
+
+ * The code to prepare the working tree side of temporary directory
+   for the "dir-diff" feature forgot that symbolic links need not be
+   copied (or symlinked) to the temporary area, as the code already
+   special cases and overwrites them.  Besides, it was wrong to try
+   computing the object name of the target of symbolic link, which may
+   not even exist or may be a directory.
+
+ * There was no way to defeat a configured rebase.autostash variable
+   from the command line, as "git rebase --no-autostash" was missing.
+
+ * Allow "git interpret-trailers" to run outside of a Git repository.
+
+ * Produce correct "dirty" marker for shell prompts, even when we
+   are on an orphan or an unborn branch.
+
+ * Some corner cases have been fixed in string-matching done in "git
+   status".
+
+ * Apple's common crypto implementation of SHA1_Update() does not take
+   more than 4GB at a time, and we now have a compile-time workaround
+   for it.
+
+Also contains typofixes, documentation updates and trivial code
+clean-ups.