Previously it was not possible to iterate revisions twice using the
revision walking api. We add a reset_revision_walk() which clears the
used flags. This allows us to do multiple sequencial revision walks.

We add the appropriate calls to the existing submodule machinery doing
revision walks. This is done to avoid surprises if future code wants to
call these functions more than once during the processes lifetime.
Signed-off-by: NHeiko Voigt <hvoigt@hvoigt.net>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

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

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

* js/add-e-submodule-fix:
  add -e: do not show difference in a submodule that is merely dirty

* jc/parse-date-raw:
  parse_date(): '@' prefix forces git-timestamp
  parse_date(): allow ancient git-timestamp

* jc/merge-ff-only-stronger-than-signed-merge:
  merge: do not create a signed tag merge under --ff-only option

* jc/branch-desc-typoavoidance:
  branch --edit-description: protect against mistyped branch name
  tests: add write_script helper function

* jn/rpm-spec:
  git.spec: Workaround localized messages not put in any RPM

Change several tests to use the sane_unset function introduced in
v1.7.3.1-35-g00648ba0 instead of the built-in unset function.

This fixes a failure I was having on t9130-git-svn-authors-file.sh on
Solaris, and prevents several other issues from occurring.
Signed-off-by: NÆvar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

I'm no longer running the Git smoke testing service at
smoke.git.nix.is due to Smolder being a fragile piece of software not
having time to follow through on making it easy for third parties to
run and submit their own smoke tests.

So remove the support in Git for sending smoke tests to
smoke.git.nix.is, it's still easy to modify the test suite to submit
smokes somewhere else.

This reverts the following commits:

    Revert "t/README: Add SMOKE_{COMMENT,TAGS}= to smoke_report target" -- e38efac8
    Revert "t/README: Document the Smoke testing" -- d15e9ebc
    Revert "t/Makefile: Create test-results dir for smoke target" -- 617344d7
    Revert "tests: Infrastructure for Git smoke testing" -- b6b84d1bSigned-off-by: NÆvar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Ever since the very first commit to git.git we've been setting CC to
"gcc". Presumably this is behavior that Linus copied from the Linux
Makefile.

However unlike Linux Git is written in ANSI C and supports a multitude
of compilers, including Clang, Sun Studio, xlc etc. On my Linux box
"cc" is a symlink to clang, and on a Solaris box I have access to "cc"
is Sun Studio's CC.

Both of these are perfectly capable of compiling Git, and it's
annoying to have to specify CC=cc on the command-line when compiling
Git when that's the default behavior of most other portable programs.

So change the default to "cc". Users who want to compile with GCC can
still add "CC=gcc" to the make(1) command-line, but those users who
don't have GCC as their "cc" will see expected behavior, and as a
bonus we'll be more likely to smoke out new compilation warnings from
our distributors since they'll me using a more varied set of compilers
by default.
Signed-off-by: NÆvar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Again this round mostly consists of fixes for 1.7.9 in preparation for
merging these topics down to maint for 1.7.9.1
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

* jc/checkout-out-of-unborn:
  git checkout -b: allow switching out of an unborn branch

* jc/maint-mailmap-output:
  mailmap: always return a plain mail address from map_user()

* jk/prompt-fallback-to-tty:
  prompt: fall back to terminal if askpass fails
  prompt: clean up strbuf usage

* jn/gitweb-search-utf-8:
  gitweb: Allow UTF-8 encoded CGI query parameters and path_info

Conflicts:
	gitweb/gitweb.perl

* nd/diffstat-gramnum:
  Use correct grammar in diffstat summary line

* nd/find-pack-entry-recent-cache-invalidation:
  find_pack_entry(): do not keep packed_git pointer locally
  sha1_file.c: move the core logic of find_pack_entry() into fill_pack_entry()

* tt/profile-build-fix:
  Makefile: fix syntax for older make
  Fix build problems related to profile-directed optimization

* nd/cache-tree-api-refactor:
  cache-tree: update API to take abitrary flags

* fc/zsh-completion:
  completion: simplify __gitcomp and __gitcomp_nl implementations
  completion: use ls -1 instead of rolling a loop to do that ourselves
  completion: work around zsh option propagation bug

* mp/make-cleanse-x-for-exe:
  Explicitly set X to avoid potential build breakage

* bw/inet-pton-ntop-compat:
  Drop system includes from inet_pton/inet_ntop compatibility wrappers

* jc/maint-commit-ignore-i-t-a:
  commit: ignore intent-to-add entries instead of refusing

Conflicts:
	cache-tree.c

* jk/maint-tag-show-fixes:
  tag: do not show non-tag contents with "-n"
  tag: die when listing missing or corrupt objects
  tag: fix output of "tag -n" when errors occur

Conflicts:
	t/t7004-tag.sh

* mm/empty-loose-error-message:
  fsck: give accurate error message on empty loose object files

* nk/ctype-for-perf:
  ctype: implement islower/isupper macro
  ctype.c only wants git-compat-util.h

* jn/merge-no-edit-fix:
  merge: do not launch an editor on "--no-edit $tag"

Conflicts:
	builtin/merge.c

Document bunch of bugfix topics to be merged down to 'maint' soonish
for 1.7.9.1 maintenance release.
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

* js/add-e-submodule-fix:
  add -e: do not show difference in a submodule that is merely dirty

* jc/parse-date-raw:
  parse_date(): '@' prefix forces git-timestamp
  parse_date(): allow ancient git-timestamp

* jc/merge-ff-only-stronger-than-signed-merge:
  merge: do not create a signed tag merge under --ff-only option

* jc/branch-desc-typoavoidance:
  branch --edit-description: protect against mistyped branch name

* jn/rpm-spec:
  git.spec: Workaround localized messages not put in any RPM

* jk/tests-write-script:
  t0300: use write_script helper
  tests: add write_script helper function

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

* jc/maint-request-pull-for-tag:
  request-pull: explicitly ask tags/$name to be pulled

* tr/grep-l-with-decoration:
  grep: fix -l/-L interaction with decoration lines

* jl/submodule-re-add:
  submodule add: fix breakage when re-adding a deep submodule