Merge branch 'sb/submodule-path-misc-bugs' into sb/submodule-init

"git submodule" reports the paths of submodules the command
recurses into, but this was incorrect when the command was not run
from the root level of the superproject.

Any further comments?  Otherwise will merge to 'next'.

* sb/submodule-path-misc-bugs: (600 commits)
  t7407: make expectation as clear as possible
  submodule update: test recursive path reporting from subdirectory
  submodule update: align reporting path for custom command execution
  submodule status: correct path handling in recursive submodules
  submodule update --init: correct path handling in recursive submodules
  submodule foreach: correct path display in recursive submodules
  Git 2.8
  Documentation: fix git-p4 AsciiDoc formatting
  mingw: skip some tests in t9115 due to file name issues
  t1300: fix the new --show-origin tests on Windows
  t1300-repo-config: make it resilient to being run via 'sh -x'
  config --show-origin: report paths with forward slashes
  submodule: fix regression for deinit without submodules
  l10n: pt_PT: Update and add new translations
  l10n: ca.po: update translation
  Git 2.8-rc4
  Documentation: fix broken linkgit to git-config
  Documentation: use ASCII quotation marks in git-p4
  Revert "config.mak.uname: use clang for Mac OS X 10.6"
  git-compat-util: st_add4: work around gcc 4.2.x compiler crash
  ...

Author: gitster

.gitignore

@@ -187,6 +187,7 @@
 /test-dump-cache-tree
 /test-dump-split-index
 /test-dump-untracked-cache
+/test-fake-ssh
 /test-scrap-cache-tree
 /test-genrandom
 /test-hashmap

.travis.yml

@@ -1,5 +1,11 @@
 language: c
 
+sudo: false
+
+cache:
+  directories:
+    - $HOME/travis-cache
+
 os:
   - linux
   - osx
@@ -15,12 +21,12 @@ addons:
 
 env:
   global:
+    - DEVELOPER=1
     - P4_VERSION="15.2"
     - GIT_LFS_VERSION="1.1.0"
     - DEFAULT_TEST_TARGET=prove
-    - GIT_PROVE_OPTS="--timer --jobs 3"
+    - GIT_PROVE_OPTS="--timer --jobs 3 --state=failed,slow,save"
     - GIT_TEST_OPTS="--verbose --tee"
-    - CFLAGS="-g -O2 -Wall -Werror"
     - GIT_TEST_CLONE_2GB=YesPlease
     # t9810 occasionally fails on Travis CI OS X
     # t9816 occasionally fails with "TAP out of sequence errors" on Travis CI OS X
@@ -67,6 +73,8 @@ before_install:
     p4 -V | grep Rev.;
     echo "$(tput setaf 6)Git-LFS Version$(tput sgr0)";
     git-lfs version;
+    mkdir -p $HOME/travis-cache;
+    ln -s $HOME/travis-cache/.prove t/.prove;
 
 before_script: make --jobs=2
 

Documentation/CodingGuidelines

@@ -171,6 +171,11 @@ For C programs:
 
  - We try to keep to at most 80 characters per line.
 
+ - As a Git developer we assume you have a reasonably modern compiler
+   and we recommend you to enable the DEVELOPER makefile knob to
+   ensure your patch is clear of all compiler warnings we care about,
+   by e.g. "echo DEVELOPER=1 >>config.mak".
+
  - We try to support a wide range of C compilers to compile Git with,
    including old ones. That means that you should not use C99
    initializers, even if a lot of compilers grok it.

Documentation/RelNotes/2.4.11.txt

@@ -0,0 +1,11 @@
+Git v2.4.11 Release Notes
+=========================
+
+Fixes since v2.4.10
+-------------------
+
+ * Bugfix patches were backported from the 'master' front to plug heap
+   corruption holes, to catch integer overflow in the computation of
+   pathname lengths, and to get rid of the name_path API.  Both of
+   these would have resulted in writing over an under-allocated buffer
+   when formulating pathnames while tree traversal.

Documentation/RelNotes/2.5.5.txt

@@ -0,0 +1,11 @@
+Git v2.5.5 Release Notes
+========================
+
+Fixes since v2.5.4
+------------------
+
+ * Bugfix patches were backported from the 'master' front to plug heap
+   corruption holes, to catch integer overflow in the computation of
+   pathname lengths, and to get rid of the name_path API.  Both of
+   these would have resulted in writing over an under-allocated buffer
+   when formulating pathnames while tree traversal.

Documentation/RelNotes/2.6.5.txt

@@ -21,5 +21,38 @@ Fixes since v2.6.4
    NULL.  This gives a compiler an excuse to declare that tree will
    never be NULL and apply a wrong optimization.  Avoid it.
 
+ * The helper used to iterate over loose object directories to prune
+   stale objects did not closedir() immediately when it is done with a
+   directory--a callback such as the one used for "git prune" may want
+   to do rmdir(), but it would fail on open directory on platforms
+   such as WinXP.
+
+ * "git p4" used to import Perforce CLs that touch only paths outside
+   the client spec as empty commits.  It has been corrected to ignore
+   them instead, with a new configuration git-p4.keepEmptyCommits as a
+   backward compatibility knob.
+
+ * The exit code of git-fsck did not reflect some types of errors
+   found in packed objects, which has been corrected.
+
+ * The completion script (in contrib/) used to list "git column"
+   (which is not an end-user facing command) as one of the choices
+
+ * Improve error reporting when SMTP TLS fails.
+
+ * When getpwuid() on the system returned NULL (e.g. the user is not
+   in the /etc/passwd file or other uid-to-name mappings), the
+   codepath to find who the user is to record it in the reflog barfed
+   and died.  Loosen the check in this codepath, which already accepts
+   questionable ident string (e.g. host part of the e-mail address is
+   obviously bogus), and in general when we operate fmt_ident() function
+   in non-strict mode.
+
+ * "git symbolic-ref" forgot to report a failure with its exit status.
+
+ * History traversal with "git log --source" that starts with an
+   annotated tag failed to report the tag as "source", due to an
+   old regression in the command line parser back in v2.2 days.
+
 Also contains typofixes, documentation updates and trivial code
 clean-ups.

Documentation/RelNotes/2.6.6.txt

@@ -0,0 +1,11 @@
+Git v2.6.6 Release Notes
+========================
+
+Fixes since v2.6.5
+------------------
+
+ * Bugfix patches were backported from the 'master' front to plug heap
+   corruption holes, to catch integer overflow in the computation of
+   pathname lengths, and to get rid of the name_path API.  Both of
+   these would have resulted in writing over an under-allocated buffer
+   when formulating pathnames while tree traversal.

Documentation/RelNotes/2.7.0.txt

@@ -6,6 +6,10 @@ Updates since v2.6
 
 UI, Workflows & Features
 
+ * The appearance of "gitk", particularly on high DPI monitors, have
+   been improved.  "gitk" also comes with an undated translation for
+   Swedish and Japanese.
+
  * "git remote" learned "get-url" subcommand to show the URL for a
    given remote name used for fetching and pushing.
 
@@ -22,7 +26,7 @@ UI, Workflows & Features
 
  * Users who are too busy to type three extra keystrokes to ask for
    "git stash show -p" can now set stash.showPatch configuration
-   varible to true to always see the actual patch, not just the list
+   variable to true to always see the actual patch, not just the list
    of paths affected with feel for the extent of damage via diffstat.
 
  * "quiltimport" allows to specify the series file by honoring the
@@ -65,7 +69,7 @@ UI, Workflows & Features
    a superset of "--no-progress".  Extend the command to support the
    usual "--[no-]progress".
 
- * The semantics of tranfer.hideRefs configuration variable have been
+ * The semantics of transfer.hideRefs configuration variable have been
    extended to work better with the ref "namespace" feature that lets
    you throw unrelated bunches of repositories in a single physical
    repository and virtually serve them as separate ones.
@@ -79,6 +83,12 @@ UI, Workflows & Features
  * The credential-cache daemon can be told to ignore SIGHUP to work
    around issue when running Git from inside emacs.
 
+ * "git push" learned new configuration for doing "--recurse-submodules"
+   on each push.
+
+ * "format-patch" has learned a new option to zero-out the commit
+   object name on the mbox "From " line.
+
 
 Performance, Internal Implementation, Development Support etc.
 
@@ -100,7 +110,6 @@ Performance, Internal Implementation, Development Support etc.
 
  * The debugging infrastructure for pkt-line based communication has
    been improved to mark the side-band communication specifically.
-   (merge fd89433 jk/async-pkt-line later to maint).
 
  * Update "git branch" that list existing branches, using the
    ref-filter API that is shared with "git tag" and "git
@@ -162,6 +171,9 @@ Performance, Internal Implementation, Development Support etc.
    git/git (including build-status for pull requests that people
    open).
 
+ * The write(2) emulation for Windows learned to set errno to EPIPE
+   when necessary.
+
 
 Also contains various documentation updates and code clean-ups.
 
@@ -356,12 +368,47 @@ notes for details).
  * A build without NO_IPv6 used to use gethostbyname() when guessing
    user's hostname, instead of getaddrinfo() that is used in other
    codepaths in such a build.
-   (merge 00bce77 ep/ident-with-getaddrinfo later to maint).
 
- * The exit code of git-fsck didnot reflect some types of errors found
-   in packed objects, which has been corrected.
-   (merge 8c24d83 dt/fsck-verify-pack-error later to maint).
+ * The exit code of git-fsck did not reflect some types of errors
+   found in packed objects, which has been corrected.
+
+ * The helper used to iterate over loose object directories to prune
+   stale objects did not closedir() immediately when it is done with a
+   directory--a callback such as the one used for "git prune" may want
+   to do rmdir(), but it would fail on open directory on platforms
+   such as WinXP.
+
+ * "git p4" used to import Perforce CLs that touch only paths outside
+   the client spec as empty commits.  It has been corrected to ignore
+   them instead, with a new configuration git-p4.keepEmptyCommits as a
+   backward compatibility knob.
+
+ * The completion script (in contrib/) used to list "git column"
+   (which is not an end-user facing command) as one of the choices
+   (merge 160fcdb sg/completion-no-column later to maint).
+
+ * The error reporting from "git send-email", when SMTP TLS fails, has
+   been improved.
+   (merge 9d60524 jk/send-email-ssl-errors later to maint).
+
+ * When getpwuid() on the system returned NULL (e.g. the user is not
+   in the /etc/passwd file or other uid-to-name mappings), the
+   codepath to find who the user is to record it in the reflog barfed
+   and died.  Loosen the check in this codepath, which already accepts
+   questionable ident string (e.g. host part of the e-mail address is
+   obviously bogus), and in general when we operate fmt_ident() function
+   in non-strict mode.
+   (merge 92bcbb9 jk/ident-loosen-getpwuid later to maint).
+
+ * "git symbolic-ref" forgot to report a failure with its exit status.
+   (merge f91b273 jk/symbolic-ref-maint later to maint).
+
+ * History traversal with "git log --source" that starts with an
+   annotated tag failed to report the tag as "source", due to an
+   old regression in the command line parser back in v2.2 days.
+   (merge 728350b jk/pending-keep-tag-name later to maint).
+
+ * "git p4" when interacting with multiple depots at the same time
+   used to incorrectly drop changes.
 
  * Code clean-up, minor fixes etc.
-   (merge 15ed07d jc/rerere later to maint).
-   (merge 147875f sb/submodule-config-parse later to maint).

Documentation/RelNotes/2.7.1.txt

@@ -0,0 +1,87 @@
+Git v2.7.1 Release Notes
+========================
+
+Fixes since v2.7
+----------------
+
+ * An earlier change in 2.5.x-era broke users' hooks and aliases by
+   exporting GIT_WORK_TREE to point at the root of the working tree,
+   interfering when they tried to use a different working tree without
+   setting GIT_WORK_TREE environment themselves.
+
+ * The "exclude_list" structure has the usual "alloc, nr" pair of
+   fields to be used by ALLOC_GROW(), but clear_exclude_list() forgot
+   to reset 'alloc' to 0 when it cleared 'nr' to discard the managed
+   array.
+
+ * "git send-email" was confused by escaped quotes stored in the alias
+   files saved by "mutt", which has been corrected.
+
+ * A few unportable C construct have been spotted by clang compiler
+   and have been fixed.
+
+ * The documentation has been updated to hint the connection between
+   the '--signoff' option and DCO.
+
+ * "git reflog" incorrectly assumed that all objects that used to be
+   at the tip of a ref must be commits, which caused it to segfault.
+
+ * The ignore mechanism saw a few regressions around untracked file
+   listing and sparse checkout selection areas in 2.7.0; the change
+   that is responsible for the regression has been reverted.
+
+ * Some codepaths used fopen(3) when opening a fixed path in $GIT_DIR
+   (e.g. COMMIT_EDITMSG) that is meant to be left after the command is
+   done.  This however did not work well if the repository is set to
+   be shared with core.sharedRepository and the umask of the previous
+   user is tighter.  They have been made to work better by calling
+   unlink(2) and retrying after fopen(3) fails with EPERM.
+
+ * Asking gitweb for a nonexistent commit left a warning in the server
+   log.
+
+ * "git rebase", unlike all other callers of "gc --auto", did not
+   ignore the exit code from "gc --auto".
+
+ * Many codepaths that run "gc --auto" before exiting kept packfiles
+   mapped and left the file descriptors to them open, which was not
+   friendly to systems that cannot remove files that are open.  They
+   now close the packs before doing so.
+
+ * A recent optimization to filter-branch in v2.7.0 introduced a
+   regression when --prune-empty filter is used, which has been
+   corrected.
+
+ * The description for SANITY prerequisite the test suite uses has
+   been clarified both in the comment and in the implementation.
+
+ * "git tag" started listing a tag "foo" as "tags/foo" when a branch
+   named "foo" exists in the same repository; remove this unnecessary
+   disambiguation, which is a regression introduced in v2.7.0.
+
+ * The way "git svn" uses auth parameter was broken by Subversion
+   1.9.0 and later.
+
+ * The "split" subcommand of "git subtree" (in contrib/) incorrectly
+   skipped merges when it shouldn't, which was corrected.
+
+ * A few options of "git diff" did not work well when the command was
+   run from a subdirectory.
+
+ * dirname() emulation has been added, as Msys2 lacks it.
+
+ * The underlying machinery used by "ls-files -o" and other commands
+   have been taught not to create empty submodule ref cache for a
+   directory that is not a submodule.  This removes a ton of wasted
+   CPU cycles.
+
+ * Drop a few old "todo" items by deciding that the change one of them
+   suggests is not such a good idea, and doing the change the other
+   one suggested to do.
+
+ * Documentation for "git fetch --depth" has been updated for clarity.
+
+ * The command line completion learned a handful of additional options
+   and command specific syntax.
+
+Also includes a handful of documentation and test updates.

Documentation/RelNotes/2.7.2.txt

@@ -0,0 +1,41 @@
+Git v2.7.2 Release Notes
+========================
+
+Fixes since v2.7.1
+------------------
+
+ * The low-level merge machinery has been taught to use CRLF line
+   termination when inserting conflict markers to merged contents that
+   are themselves CRLF line-terminated.
+
+ * "git worktree" had a broken code that attempted to auto-fix
+   possible inconsistency that results from end-users moving a
+   worktree to different places without telling Git (the original
+   repository needs to maintain backpointers to its worktrees, but
+   "mv" run by end-users who are not familiar with that fact will
+   obviously not adjust them), which actually made things worse
+   when triggered.
+
+ * "git push --force-with-lease" has been taught to report if the push
+   needed to force (or fast-forwarded).
+
+ * The emulated "yes" command used in our test scripts has been
+   tweaked not to spend too much time generating unnecessary output
+   that is not used, to help those who test on Windows where it would
+   not stop until it fills the pipe buffer due to lack of SIGPIPE.
+
+ * The vimdiff backend for "git mergetool" has been tweaked to arrange
+   and number buffers in the order that would match the expectation of
+   majority of people who read left to right, then top down and assign
+   buffers 1 2 3 4 "mentally" to local base remote merge windows based
+   on that order.
+
+ * The documentation for "git clean" has been corrected; it mentioned
+   that .git/modules/* are removed by giving two "-f", which has never
+   been the case.
+
+ * Paths that have been told the index about with "add -N" are not
+   quite yet in the index, but a few commands behaved as if they
+   already are in a harmful way.
+
+Also includes tiny documentation and test updates.