A Range: request can be responded with a full response and when
asked properly libcurl knows how to strip the result down to the
requested range.  However, we were hand-crafting a range request
and it did not kick in.

* dt/http-range:
  http: use off_t to store partial file size
  http.c: use CURLOPT_RANGE for range requests

Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Signed-off-by: NJunio C Hamano <gitster@pobox.com>

"git daemon" uses "run_command()" without "finish_command()", so it
needs to release resources itself, which it forgot to do.

* rs/daemon-plug-child-leak:
  daemon: plug memory leak
  run-command: factor out child_process_clear()

"git status --branch --short" accessed beyond the constant string
"HEAD", which has been corrected.

* rs/wt-status-detached-branch-fix:
  wt-status: use skip_prefix() to get rid of magic string length constants
  wt-status: don't skip a magical number of characters blindly
  wt-status: avoid building bogus branch name with detached HEAD
  wt-status: exit early using goto in wt_shortstatus_print_tracking()
  t7060: add test for status --branch on a detached HEAD

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.

* jk/initialization-fix-to-add-submodule-odb:
  add_submodule_odb: initialize alt_odb list earlier

Various compilation fixes and squelching of warnings.

* js/misc-fixes:
  Correct fscanf formatting string for I64u values
  Silence GCC's "cast of pointer to integer of a different size" warning
  Squelch warning about an integer overflow

"git --literal-pathspecs add -u/-A" without any command line
argument misbehaved ever since Git 2.0.

* jc/add-u-A-default-to-top:
  add: simplify -u/-A without pathspec

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.

* jk/delete-modechange-conflict:
  merge: detect delete/modechange conflict
  t6031: generalize for recursive and resolve strategies
  t6031: move triple-rename test to t3030

"git imap-send" did not compile well with older version of cURL library.

* js/imap-send-curl-compilation-fix:
  imap-send: only use CURLOPT_LOGIN_OPTIONS if it is actually available

The linkage order of libraries was wrong in places around libcurl.

* rp/link-curl-before-ssl:
  configure.ac: detect ssl need with libcurl
  Makefile: make curl-config path configurable
  Makefile: link libcurl before zlib

It was not possible to use a repository-lookalike created by "git
worktree add" as a local source of "git clone".

* nd/clone-linked-checkout:
  clone: better error when --reference is a linked checkout
  clone: allow --local from a linked checkout
  enter_repo: allow .git files in strict mode
  enter_repo: avoid duplicating logic, use is_git_directory() instead
  t0002: add test for enter_repo(), non-strict mode
  path.c: delete an extra space

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.

* sa/send-email-smtp-batch-data-limit:
  git-send-email.perl: Fixed sending of many/huge changes/patches

* maint:

* xf/user-manual-ff:
  user-manual: fix the description of fast-forward

AsciiDoc markup fixes.

* xf/user-manual-markup:
  Documentation: match undefline with the text in old release notes
  Documentation: match underline with the text
  Documentation: fix header markup

AsciiDoc markup fixes.

* jc/everyday-markup:
  Documentation/everyday: match undefline with the text

AsciiDoc markup fixes.

* jc/em-dash-in-doc:
  Documentation: AsciiDoc spells em-dash as double-dashes, not triple

* es/worktree-add:
  worktree: usage: denote <branch> as optional with 'add'

The error message from "git blame --contents --reverse" incorrectly
talked about "--contents --children".

* mk/blame-error-message:
  blame: fix option name in error message

"git merge-file" tried to signal how many conflicts it found, which
obviously would not work well when there are too many of them.

* jk/merge-file-exit-code:
  merge-file: clamp exit code to maximum 127

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.

* dt/name-hash-dir-entry-fix:
  name-hash: don't reuse cache_entry in dir_entry

"git am -3" had a small regression where it is aborted in its error
handling codepath when underlying merge-recursive failed in certain
ways, as it assumed that the internal call to merge-recursive will
never die, which is not the case (yet).

* jc/am-3-fallback-regression-fix:
  am -3: do not let failed merge from completing the error codepath

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.

* jc/usage-stdin:
  usage: do not insist that standard input must come from a file

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.

* rt/placeholder-in-usage:
  am, credential-cache: add angle brackets to usage string

* dt/t7063-fix-flaky-test:
  t7063: fix flaky untracked-cache test

The submodule code has been taught to work better with separate
work trees created via "git worktree add".

* mk/submodule-gitdir-path:
  path: implement common_dir handling in git_pathdup_submodule()
  submodule refactor: use strbuf_git_path_submodule() in add_submodule_odb()

When "git gc --auto" is backgrounded, its diagnosis message is
lost.  Save it to a file in $GIT_DIR and show it next time the "gc
--auto" is run.

* nd/gc-auto-background-fix:
  gc: save log from daemonized gc --auto and print it next time

Work around "git p4" failing when the P4 depot records the contents
in UTF-16 without UTF-16 BOM.

* ls/p4-translation-failure:
  git-p4: handle "Translation of file content failed"
  git-p4: add test case for "Translation of file content failed" error

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.

* gr/rebase-i-drop-warn:
  rebase-i: work around Windows CRLF line endings
  t3404: "rebase -i" gets broken when insn sheet uses CR/LF line endings

"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.

* js/clone-dissociate:
  clone --dissociate: avoid locking pack files
  sha1_file.c: add a function to release all packs
  sha1_file: consolidate code to close a pack's file descriptor
  t5700: demonstrate a Windows file locking issue with `git clone --dissociate`

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.

* ld/p4-import-labels:
  git-p4: fix P4 label import for unprocessed commits
  git-p4: do not terminate creating tag for unknown commit
  git-p4: failing test for ignoring invalid p4 labels

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.

* tk/stripspace:
  stripspace: use parse-options for command-line parsing
  strbuf: make stripspace() part of strbuf

Prepare for Git on-disk repository representation to undergo
backward incompatible changes by introducing a new repository
format version "1", with an extension mechanism.

* jk/repository-extension:
  introduce "preciousObjects" repository extension
  introduce "extensions" form of core.repositoryformatversion

Signed-off-by: NJunio C Hamano <gitster@pobox.com>

"git daemon" uses "run_command()" without "finish_command()", so it
needs to release resources itself, which it forgot to do.

* rs/daemon-plug-child-leak:
  daemon: plug memory leak
  run-command: factor out child_process_clear()

"git blame" learnt to take "--first-parent" and "--reverse" at the
same time when it makes sense.

* mk/blame-first-parent:
  blame: allow blame --reverse --first-parent when it makes sense
  blame: extract find_single_final
  blame: test to describe use of blame --reverse --first-parent

"git status --branch --short" accessed beyond the constant string
"HEAD", which has been corrected.

* rs/wt-status-detached-branch-fix:
  wt-status: use skip_prefix() to get rid of magic string length constants
  wt-status: don't skip a magical number of characters blindly
  wt-status: avoid building bogus branch name with detached HEAD
  wt-status: exit early using goto in wt_shortstatus_print_tracking()
  t7060: add test for status --branch on a detached HEAD

Code simplification.

* rs/show-branch-argv-array:
  show-branch: use argv_array for default arguments