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Author SHA1 Message Date
Michael Rappazzo
16cf51c7a2 git-rebase--interactive.sh: add config option for custom instruction format
A config option 'rebase.instructionFormat' can override the
default 'oneline' format of the rebase instruction list.

Since the list is parsed using the left, right or boundary mark plus
the sha1, they are prepended to the instruction format.

Signed-off-by: Michael Rappazzo <rappazzo@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-15 11:42:58 -07:00
Junio C Hamano
a6be52e239 Merge branch 'mm/rebase-i-post-rewrite-exec'
"git rebase -i" fired post-rewrite hook when it shouldn't (namely,
when it was told to stop sequencing with 'exec' insn).

* mm/rebase-i-post-rewrite-exec:
  t5407: use <<- to align the expected output
  rebase -i: fix post-rewrite hook with failed exec command
  rebase -i: demonstrate incorrect behavior of post-rewrite
2015-06-01 12:45:20 -07:00
Matthieu Moy
b12d3e904d rebase -i: fix post-rewrite hook with failed exec command
Usually, when 'git rebase' stops before completing the rebase, it is to
give the user an opportunity to edit a commit (e.g. with the 'edit'
command). In such cases, 'git rebase' leaves the sha1 of the commit being
rewritten in "$state_dir"/stopped-sha, and subsequent 'git rebase
--continue' will call the post-rewrite hook with this sha1 as <old-sha1>
argument to the post-rewrite hook.

The case of 'git rebase' stopping because of a failed 'exec' command is
different: it gives the opportunity to the user to examine or fix the
failure, but does not stop saying "here's a commit to edit, use
--continue when you're done". So, there's no reason to call the
post-rewrite hook for 'exec' commands. If the user did rewrite the
commit, it would be with 'git commit --amend' which already called the
post-rewrite hook.

Fix the behavior to leave no stopped-sha file in case of failed exec
command, and teach 'git rebase --continue' to skip record_in_rewritten if
no stopped-sha file is found.

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-22 08:39:02 -07:00
Junio C Hamano
eae0216646 Merge branch 'ph/rebase-i-redo'
"git rebase -i" moved the "current" command from "todo" to "done" a
bit too prematurely, losing a step when a "pick" did not even start.

* ph/rebase-i-redo:
  rebase -i: redo tasks that die during cherry-pick
2015-05-19 13:17:56 -07:00
Junio C Hamano
68a2e6a2c8 Merge branch 'nd/multiple-work-trees'
A replacement for contrib/workdir/git-new-workdir that does not
rely on symbolic links and make sharing of objects and refs safer
by making the borrowee and borrowers aware of each other.

* nd/multiple-work-trees: (41 commits)
  prune --worktrees: fix expire vs worktree existence condition
  t1501: fix test with split index
  t2026: fix broken &&-chain
  t2026 needs procondition SANITY
  git-checkout.txt: a note about multiple checkout support for submodules
  checkout: add --ignore-other-wortrees
  checkout: pass whole struct to parse_branchname_arg instead of individual flags
  git-common-dir: make "modules/" per-working-directory directory
  checkout: do not fail if target is an empty directory
  t2025: add a test to make sure grafts is working from a linked checkout
  checkout: don't require a work tree when checking out into a new one
  git_path(): keep "info/sparse-checkout" per work-tree
  count-objects: report unused files in $GIT_DIR/worktrees/...
  gc: support prune --worktrees
  gc: factor out gc.pruneexpire parsing code
  gc: style change -- no SP before closing parenthesis
  checkout: clean up half-prepared directories in --to mode
  checkout: reject if the branch is already checked out elsewhere
  prune: strategies for linked checkouts
  checkout: support checking out into a new working directory
  ...
2015-05-11 14:23:39 -07:00
Phil Hord
8cbc57ca11 rebase -i: redo tasks that die during cherry-pick
When rebase--interactive processes a task, it removes the item from
the todo list and appends it to another list of executed tasks. If a
pick (this includes squash and fixup) fails before the index has
recorded the changes, take the corresponding item and put it on the todo
list again. Otherwise, the changes introduced by the scheduled commit
would be lost.

That kind of decision is possible since the cherry-pick command
signals why it failed to apply the changes of the given commit. Either
the changes are recorded in the index using a conflict (return value 1)
and rebase does not continue until they are resolved or the changes
are not recorded in the index (return value neither 0 nor 1) and
rebase has to try again with the same task.

Add a test cases for regression testing to the "rebase-interactive"
test suite.

Signed-off-by: Fabian Ruch <bafain@gmail.com>
Signed-off-by: Phil Hord <hordp@cisco.com>
Acked-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-04-29 08:49:22 -07:00
Junio C Hamano
f63ed085e2 Merge branch 'es/rebase-i-count-todo' into maint
"git rebase -i" recently started to include the number of
commits in the insn sheet to be processed, but on a platform
that prepends leading whitespaces to "wc -l" output, the numbers
are shown with extra whitespaces that aren't necessary.

* es/rebase-i-count-todo:
  rebase-interactive: re-word "item count" comment
  rebase-interactive: suppress whitespace preceding item count
2015-03-23 11:23:17 -07:00
Junio C Hamano
fbcbcee51c Merge branch 'es/rebase-i-count-todo'
"git rebase -i" recently started to include the number of
commits in the insn sheet to be processed, but on a platform
that prepends leading whitespaces to "wc -l" output, the numbers
are shown with extra whitespaces that aren't necessary.

* es/rebase-i-count-todo:
  rebase-interactive: re-word "item count" comment
  rebase-interactive: suppress whitespace preceding item count
2015-03-17 16:01:29 -07:00
Eric Sunshine
2185d3b7ad rebase-interactive: re-word "item count" comment
97f05f43 (Show number of TODO items for interactive rebase, 2014-12-10)
taught rebase-interactive to display an item count in the instruction
list comments:

    # Rebase 46640c6..5568fd5 onto 46640c6 (4 TODO item(s))
    #
    # Commands:
    # p, pick = use commit
    # ...

However, with the exception of the --edit-todo option, "TODO" is a
one-off term, never presented to the user by rebase-interactive in
any other context. The item count is in fact the number of commands
("pick", "edit", etc.) remaining on the instruction sheet, and the
comment immediately following it talks about "Commands". Consequently,
replace "(# TODO item(s))" with the more accurate and meaningful
"(# command(s))".

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-03-06 12:25:33 -08:00
Eric Sunshine
28c8cfc363 rebase-interactive: suppress whitespace preceding item count
97f05f43 (Show number of TODO items for interactive rebase, 2014-12-10)
taught rebase-interactive to compute an item count with 'wc -l' and
display it in the instruction list comments:

    # Rebase 46640c6..5568fd5 onto 46640c6 (4 TODO item(s))

On Mac OS X, however, it renders as:

    # Rebase 46640c6..5568fd5 onto 46640c6 (       4 TODO item(s))

since 'wc -l' indents its output with leading spaces. Fix this.

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-03-06 12:11:27 -08:00
Junio C Hamano
aaa90f5f07 Merge branch 'ks/rebase-i-abbrev' into maint
The insn sheet "git rebase -i" creates did not fully honor
core.abbrev settings.

* ks/rebase-i-abbrev:
  rebase -i: use full object name internally throughout the script
2015-03-05 13:12:56 -08:00
Junio C Hamano
9f55a77777 Merge branch 'ks/rebase-i-abbrev'
The insn sheet "git rebase -i" creates did not fully honor
core.abbrev settings.

* ks/rebase-i-abbrev:
  rebase -i: use full object name internally throughout the script
2015-02-17 10:15:18 -08:00
Kirill A. Shutemov
edb72d5511 rebase -i: use full object name internally throughout the script
In earlier days, the abbreviated commit object name shown to the end
users were generated with hardcoded --abbrev=7; 56895038 (rebase
-i: respect core.abbrev, 2013-09-28) tried to make it honor the user
specified core.abbrev, but it missed the very initial invocation of
the editor.

These days, we try to use the full 40-hex object names internally to
avoid ambiguity that can arise after rebase starts running.  Newly
created objects during the rebase may share the same prefix with
existing commits listed in the insn sheet.  These object names are
shortened just before invoking the sequence editor to present the
insn sheet to the end user, and then expanded back to full object
names when the editor returns.

But the code still used the shortened names when preparing the insn
sheet for the very first time, resulting "7 hexdigits or more"
output to the user.  Change the code to use full 40-hex commit
object names from the very beginning to make things more uniform.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-01-22 12:19:47 -08:00
Onno Kortmann
97f05f43dc Show number of TODO items for interactive rebase
During 'rebase -i', one wrong edit in a long rebase session
might inadvertently drop commits/items. This change shows
the total number of TODO items in the comments after the
list. After performing the rebase edit, total item counts
can be compared to make sure that no changes have been lost
in the edit.

Signed-off-by: Onno Kortmann <onno@gmx.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-12-10 13:17:38 -08:00
Nguyễn Thái Ngọc Duy
b849b954d2 *.sh: avoid hardcoding $GIT_DIR/hooks/...
If $GIT_COMMON_DIR is set, it should be $GIT_COMMON_DIR/hooks/, not
$GIT_DIR/hooks/. Just let rev-parse --git-path handle it.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-12-01 11:00:13 -08:00
John Keeping
1e0dacdbdb rebase: omit patch-identical commits with --fork-point
When the `--fork-point` argument was added to `git rebase`, we changed
the value of $upstream to be the fork point instead of the point from
which we want to rebase.  When $orig_head..$upstream is empty this does
not change the behaviour, but when there are new changes in the upstream
we are no longer checking if any of them are patch-identical with
changes in $upstream..$orig_head.

Fix this by introducing a new variable to hold the fork point and using
this to restrict the range as an extra (negative) revision argument so
that the set of desired revisions becomes (in fork-point mode):

	git rev-list --cherry-pick --right-only \
		$upstream...$orig_head ^$fork_point

This allows us to correctly handle the scenario where we have the
following topology:

	    C --- D --- E  <- dev
	   /
	  B  <- master@{1}
	 /
	o --- B' --- C* --- D*  <- master

where:
- B' is a fixed-up version of B that is not patch-identical with B;
- C* and D* are patch-identical to C and D respectively and conflict
  textually if applied in the wrong order;
- E depends textually on D.

The correct result of `git rebase master dev` is that B is identified as
the fork-point of dev and master, so that C, D, E are the commits that
need to be replayed onto master; but C and D are patch-identical with C*
and D* and so can be dropped, so that the end result is:

	o --- B' --- C* --- D* --- E  <- dev

If the fork-point is not identified, then picking B onto a branch
containing B' results in a conflict and if the patch-identical commits
are not correctly identified then picking C onto a branch containing D
(or equivalently D*) results in a conflict.

This change allows us to handle both of these cases, where previously we
either identified the fork-point (with `--fork-point`) but not the
patch-identical commits *or* (with `--no-fork-point`) identified the
patch-identical commits but not the fact that master had been rewritten.

Reported-by: Ted Felix <ted@tedfelix.com>
Signed-off-by: John Keeping <john@keeping.me.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-16 13:07:40 -07:00
Junio C Hamano
e56857246a Merge branch 'ep/avoid-test-a-o'
Update tests and scripts to avoid "test ... -a ...", which is often
more error-prone than "test ... && test ...".

Squashed misconversion fix-up into git-submodule.sh updates.

* ep/avoid-test-a-o:
  git-submodule.sh: avoid "echo" path-like values
  git-submodule.sh: avoid "test <cond> -a/-o <cond>"
  t/test-lib-functions.sh: avoid "test <cond> -a/-o <cond>"
  t/t9814-git-p4-rename.sh: avoid "test <cond> -a/-o <cond>"
  t/t5538-push-shallow.sh: avoid "test <cond> -a/-o <cond>"
  t/t5403-post-checkout-hook.sh: avoid "test <cond> -a/-o <cond>"
  t/t5000-tar-tree.sh: avoid "test <cond> -a/-o <cond>"
  t/t4102-apply-rename.sh: avoid "test <cond> -a/-o <cond>"
  t/t0026-eol-config.sh: avoid "test <cond> -a/-o <cond>"
  t/t0025-crlf-auto.sh: avoid "test <cond> -a/-o <cond>"
  t/lib-httpd.sh: avoid "test <cond> -a/-o <cond>"
  git-rebase--interactive.sh: avoid "test <cond> -a/-o <cond>"
  git-mergetool.sh: avoid "test <cond> -a/-o <cond>"
  git-bisect.sh: avoid "test <cond> -a/-o <cond>"
  contrib/examples/git-resolve.sh: avoid "test <cond> -a/-o <cond>"
  contrib/examples/git-repack.sh: avoid "test <cond> -a/-o <cond>"
  contrib/examples/git-merge.sh: avoid "test <cond> -a/-o <cond>"
  contrib/examples/git-commit.sh: avoid "test <cond> -a/-o <cond>"
  contrib/examples/git-clone.sh: avoid "test <cond> -a/-o <cond>"
  check_bindir: avoid "test <cond> -a/-o <cond>"
2014-06-25 12:23:56 -07:00
Junio C Hamano
d9036cd28c Merge branch 'rr/rebase-autostash-fix' into maint
The autostash mode of "git rebase -i" did not restore the dirty
working tree state if the user aborted the interactive rebase by
emptying the insn sheet.

* rr/rebase-autostash-fix:
  rebase -i: test "Nothing to do" case with autostash
  rebase -i: handle "Nothing to do" case with autostash
2014-06-25 11:49:31 -07:00
Junio C Hamano
4a43d4f98a Merge branch 'rr/rebase-autostash-fix'
* rr/rebase-autostash-fix:
  rebase -i: test "Nothing to do" case with autostash
  rebase -i: handle "Nothing to do" case with autostash
2014-06-16 10:06:57 -07:00
Elia Pinto
e425f6ad4d git-rebase--interactive.sh: avoid "test <cond> -a/-o <cond>"
The construct is error-prone; "test" being built-in in most modern
shells, the reason to avoid "test <cond> && test <cond>" spawning
one extra process by using a single "test <cond> -a <cond>" no
longer exists.

Signed-off-by: Elia Pinto <gitter.spiros@gmail.com>
Reviewed-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-06-09 14:47:07 -07:00
Ramkumar Ramachandra
e4244eb395 rebase -i: handle "Nothing to do" case with autostash
When a user invokes

  $ git rebase -i @~3

with dirty files and rebase.autostash turned on, and exits the $EDITOR
with an empty buffer, the autostash fails to apply. Although the primary
focus of rr/rebase-autostash was to get the git-rebase--backend.sh
scripts to return control to git-rebase.sh, it missed this case in
git-rebase--interactive.sh. Since this case is unlike the other cases
which return control for housekeeping, assign it a special return status
and handle that return value explicitly in git-rebase.sh.

Reported-by: Karen Etheridge <ether@cpan.org>
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-19 15:36:24 -07:00
Junio C Hamano
0b17b43310 Merge branch 'km/avoid-non-function-return-in-rebase'
Work around /bin/sh that does not like "return" at the top-level
of a file that is dot-sourced from inside a function definition.

* km/avoid-non-function-return-in-rebase:
  Revert "rebase: fix run_specific_rebase's use of "return" on FreeBSD"
  rebase: avoid non-function use of "return" on FreeBSD
2014-04-21 10:42:46 -07:00
Kyle J. McKay
9f50d32b9c rebase: avoid non-function use of "return" on FreeBSD
Since a1549e10, 15d4bf2e and 01a1e646 (first appearing in v1.8.4)
the git-rebase--*.sh scripts have used a "return" to stop execution
of the dot-sourced file and return to the "dot" command that
dot-sourced it.  The /bin/sh utility on FreeBSD however behaves
poorly under some circumstances when such a "return" is executed.

In particular, if the "dot" command is contained within a function,
then when a "return" is executed by the script it runs (that is not
itself inside a function), control will return from the function
that contains the "dot" command skipping any statements that might
follow the dot command inside that function.  Commit 99855ddf (first
appearing in v1.8.4.1) addresses this by making the "dot" command
the last line in the function.

Unfortunately the FreeBSD /bin/sh may also execute some statements
in the script run by the "dot" command that appear after the
troublesome "return".  The fix in 99855ddf does not address this
problem.

For example, if you have script1.sh with these contents:

run_script2() {
        . "$(dirname -- "$0")/script2.sh"
        _e=$?
        echo only this line should show
        [ $_e -eq 5 ] || echo expected status 5 got $_e
        return 3
}
run_script2
e=$?
[ $e -eq 3 ] || { echo expected status 3 got $e; exit 1; }

And script2.sh with these contents:

if [ 5 -gt 3 ]; then
        return 5
fi
case bad in *)
        echo always shows
esac
echo should not get here
! :

When running script1.sh (e.g. '/bin/sh script1.sh' or './script1.sh'
after making it executable), the expected output from a POSIX shell
is simply the single line:

only this line should show

However, when run using FreeBSD's /bin/sh, the following output
appears instead:

should not get here
expected status 3 got 1

Not only did the lines following the "dot" command in the run_script2
function in script1.sh get skipped, but additional lines in script2.sh
following the "return" got executed -- but not all of them (e.g. the
"echo always shows" line did not run).

These issues can be avoided by not using a top-level "return" in
script2.sh.  If script2.sh is changed to this:

main() {
        if [ 5 -gt 3 ]; then
                return 5
        fi
        case bad in *)
                echo always shows
        esac
        echo should not get here
        ! :
}
main

Then it behaves the same when using FreeBSD's /bin/sh as when using
other more POSIX compliant /bin/sh implementations.

We fix the git-rebase--*.sh scripts in a similar fashion by moving
the top-level code that contains "return" statements into its own
function and then calling that as the last line in the script.

Signed-off-by: Kyle J. McKay <mackyle@gmail.com>
Acked-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-04-17 10:13:29 -07:00
Junio C Hamano
cf30bfb8fb Merge branch 'us/printf-not-echo'
* us/printf-not-echo:
  test-lib.sh: do not "echo" caller-supplied strings
  rebase -i: do not "echo" random user-supplied strings
2014-03-25 11:08:27 -07:00
Uwe Storbeck
47be066026 rebase -i: do not "echo" random user-supplied strings
In some places we "echo" a string that comes from a commit log
message, which may have a backslash sequence that is interpreted by
the command (POSIX.1 allows this), most notably "dash"'s built-in
'echo'.

A commit message which contains the string '\n' (or ends with the
string '\c') may result in a garbage line in the todo list of an
interactive rebase which causes the rebase to fail.

To reproduce the behavior (with dash as /bin/sh):

  mkdir test && cd test && git init
  echo 1 >foo && git add foo
  git commit -m"this commit message ends with '\n'"
  echo 2 >foo && git commit -a --fixup HEAD
  git rebase -i --autosquash --root

Now the editor opens with garbage in line 3 which has to be
removed or the rebase fails.

Signed-off-by: Uwe Storbeck <uwe@ibr.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-03-17 12:24:14 -07:00
Nicolas Vigier
3ee5e54038 rebase: add the --gpg-sign option
Signed-off-by: Nicolas Vigier <boklm@mars-attacks.org>
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-02-11 14:48:20 -08:00
Jonathan Nieder
11d62145b9 remove #!interpreter line from shell libraries
In a shell snippet meant to be sourced by other shell scripts, an
opening #! line does more harm than good.

The harm:

 - When the shell library is sourced, the interpreter and options from
   the #! line are not used.  Specifying a particular shell can
   confuse the reader into thinking it is safe for the shell library
   to rely on idiosyncrasies of that shell.

 - Using #! instead of a plain comment drops a helpful visual clue
   that this is a shell library and not a self-contained script.

 - Tools such as lintian can use a #! line to tell when an
   installation script has failed by forgetting to set a script
   executable.  This check does not work if shell libraries also start
   with a #! line.

The good:

 - Text editors notice the #! line and use it for syntax highlighting
   if you try to edit the installed scripts (without ".sh" suffix) in
   place.

The use of the #! for file type detection is not needed because Git's
shell libraries are meant to be edited in source form (with ".sh"
suffix).  Replace the opening #! lines with comments.

This involves tweaking the test harness's valgrind support to find
shell libraries by looking for "# " in the first line instead of "#!"
(see v1.7.6-rc3~7, 2011-06-17).

Suggested by Russ Allbery through lintian.  Thanks to Jeff King and
Clemens Buchacher for further analysis.

Tested by searching for non-executable scripts with #! line:

	find . -name .git -prune -o -type f -not -executable |
	while read file
	do
		read line <"$file"
		case $line in
		'#!'*)
			echo "$file"
			;;
		esac
	done

The only remaining scripts found are templates for shell scripts
(unimplemented.sh, wrap-for-bin.sh) and sample input used in tests
(t/t4034/perl/{pre,post}).

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-11-26 14:23:56 -08:00
Kirill A. Shutemov
568950388b rebase -i: respect core.abbrev
collapse_todo_ids() uses `git rev-parse --short=7' to abbreviate
commit ids before showing them to the user in a text editor.  Let's
drop argument from --short to the configured value instead (still
defaulting to 7).

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
2013-09-30 14:34:50 -07:00
Junio C Hamano
135be1ee2b Merge branch 'es/rebase-i-no-abbrev'
The commit object names in the insn sheet that was prepared at the
beginning of "rebase -i" session can become ambiguous as the
rebasing progresses and the repository gains more commits. Make
sure the internal record is kept with full 40-hex object names.

* es/rebase-i-no-abbrev:
  rebase -i: fix short SHA-1 collision
  t3404: rebase -i: demonstrate short SHA-1 collision
  t3404: make tests more self-contained
2013-09-11 15:02:29 -07:00
Junio C Hamano
8c731e9c8f Merge branch 'rt/rebase-p-no-merge-summary'
"git rebase -p" internally used the merge machinery, but when
rebasing, there should not be a need for merge summary.

* rt/rebase-p-no-merge-summary:
  rebase --preserve-merges: ignore "merge.log" config
2013-09-11 15:00:56 -07:00
Junio C Hamano
42e5fb2bf1 Merge branch 'es/rebase-i-respect-core-commentchar'
"rebase -i" forgot that the comment character can be configurable
while reading its insn sheet.

* es/rebase-i-respect-core-commentchar:
  rebase -i: fix cases ignoring core.commentchar
2013-09-11 14:58:52 -07:00
Junio C Hamano
75c6976655 rebase -i: fix short SHA-1 collision
The 'todo' sheet for interactive rebase shows abbreviated SHA-1's and
then performs its operations upon those shortened values. This can lead
to an abort if the SHA-1 of a reworded or edited commit is no longer
unique within the abbreviated SHA-1 space and a subsequent SHA-1 in the
todo list has the same abbreviated value.

For example:

  edit f00dfad first
  pick badbeef second

If, after editing, the new SHA-1 of "first" also has prefix badbeef,
then the subsequent 'pick badbeef second' will fail since badbeef is no
longer a unique SHA-1 abbreviation:

  error: short SHA1 badbeef is ambiguous.
  fatal: Needed a single revision
  Invalid commit name: badbeef

Fix this problem by expanding the SHA-1's in the todo list before
performing the operations.

[es: also collapse & expand SHA-1's for --edit-todo; respect
core.commentchar in transform_todo_ids(); compose commit message]

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-08-25 23:43:40 -07:00
Ralf Thielow
a9f739c111 rebase --preserve-merges: ignore "merge.log" config
When "merge.log" config is set, "rebase --preserve-merges" will add
the log lines to the message of the rebased merge commit.  A rebase
should not modify a commit message automatically.

Teach "git-rebase" to ignore that configuration by passing
"--no-log" to the git-merge call.

Signed-off-by: Ralf Thielow <ralf.thielow@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-08-21 15:44:15 -07:00
Eric Sunshine
7bca7afeff rebase -i: fix cases ignoring core.commentchar
180bad3d (rebase -i: respect core.commentchar, 2013-02-11) updated
"rebase -i" to honor core.commentchar but missed one instance of
hard-coded '#' comment character in skip_unnecessary_picks().

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-08-18 13:33:01 -07:00
Junio C Hamano
afbfcaa983 Merge branch 'rr/rebase-reflog-message-reword'
"git rebase [-i]" used to leave just "rebase" as its reflog message
for some operations. This rewords them to be more informative.

* rr/rebase-reflog-message-reword:
  rebase -i: use a better reflog message
  rebase: use a better reflog message
2013-07-18 12:48:20 -07:00
Junio C Hamano
5b6cd0fe7b Merge branch 'af/rebase-i-merge-options'
"git rebase -i" now honors --strategy and -X options.

* af/rebase-i-merge-options:
  Do not ignore merge options in interactive rebase
2013-07-11 13:05:59 -07:00
Arnaud Fontaine
db2b3b820e Do not ignore merge options in interactive rebase
Merge strategy and its options can be specified in `git rebase`,
but with `--interactive`, they were completely ignored.

Signed-off-by: Arnaud Fontaine <arnau@debian.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-02 12:46:30 -07:00
Andrew Pimlott
22c5b13636 rebase -i: handle fixup! fixup! in --autosquash
In rebase -i --autosquash, ignore all "fixup! " or "squash! " after the
first.  This supports the case when a git commit --fixup/--squash referred
to an earlier fixup/squash instead of the original commit (whether
intentionally, as when the user expressly meant to note that the commit
fixes an earlier fixup; or inadvertently, as when the user meant to refer to
the original commit with :/msg; or out of laziness, as when the user could
remember how to refer to the fixup but not the original).

In the todo list, the full commit message is preserved, in case it provides
useful cues to the user.  A test helper set_cat_todo_editor is introduced to
check this.

Helped-by: Thomas Rast <trast@inf.ethz.ch>
Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Andrew Pimlott <andrew@pimlott.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-27 13:52:41 -07:00
Ramkumar Ramachandra
26cd160cb1 rebase -i: use a better reflog message
Now that the "checkout" invoked internally from "rebase -i" knows to
honor GIT_REFLOG_ACTION, we can start to use it to write a better
reflog message when "rebase anotherbranch", "rebase --onto branch",
etc. internally checks out the new fork point.  We will write:

  rebase -i: checkout master

instead of the old

  rebase -i

As all the calls git-rebase--interactive make to underlying git
commands that leave reflog messages are preceded by the internal
comment_for_reflog helper function, which uses the original value of
the GIT_REFLOG_ACTION variable it saw when it first started, the new
assignments to GIT_REFLOG_ACTION actively contaminate the value of
the variable, knowing that it will be reset to a sane value before
it is used again.  This does not generally hold true but it should
suffice for now.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-23 22:16:42 -07:00
Ramkumar Ramachandra
15d4bf2e1e rebase -i: return control to caller, for housekeeping
Return control to the caller git-rebase.sh to get these two tasks

    rm -fr "$dotest"
    git gc --auto

done by it.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-12 23:20:07 -07:00
Ramkumar Ramachandra
1224f3d0f1 rebase -i: don't error out if $state_dir already exists
In preparation for a later patch that will create $state_dir/autostash
in git-rebase.sh before anything else can happen, change a `mkdir
$state_dir` call to `mkdir -p $state_dir`.  The change is safe,
because this is not a test to detect an in-progress rebase (that is
already done much earlier in git-rebase.sh).

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-12 23:20:07 -07:00
Zoltan Klinger
b71dc3e1a0 bash-prompt.sh: show where rebase is at when stopped
When a rebase stops (e.g. interrupted by a merge conflict), it could
be useful to know how far a rebase has progressed and how many
commits in total this rebase will apply. Teach the __git_ps1()
command to display the number of commits so far applied and the
total number of commits to be applied, like this:

  ((3ec0a6a...)|REBASE 2/5)

In the example above the rebase has stopped at the second commit due to
a merge conflict and there are a total number of five commits to be
applied by this rebase.

This information can be already obtained from the following files which are
being generated during the rebase:

    GIT_DIR/.git/rebase-merge/msgnum (git-rebase--merge.sh)
    GIT_DIR/.git/rebase-merge/end    (git-rebase--merge.sh)
    GIT_DIR/.git/rebase-apply/next   (git-am.sh)
    GIT_DIR/.git/rebase-apply/last   (git-am.sh)

but "rebase -i" does not leave necessary clues.

Implement this feature by doing these three things:

  1) Modify git-rebase--interactive.sh to also create

	GIT_DIR/.git/rebase-merge/msgnum
	GIT_DIR/.git/rebase-merge/end

     files for the number of commits so far applied and the total
     number of commits to be applied.

  2) Modify git-prompt.sh to read and display info from the above
     files.

  3) Update test t9903-bash-prompt.sh to reflect changes introduced
     by this patch.

Signed-off-by: Zoltan Klinger <zoltan.klinger@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-25 09:59:34 -07:00
Junio C Hamano
00abd715ab Merge branch 'jk/rebase-i-comment-char'
Finishing touches to the earlier core.commentchar topic to cover
"rebase -i" as well.

* jk/rebase-i-comment-char:
  rebase -i: respect core.commentchar
2013-02-17 15:25:20 -08:00
John Keeping
180bad3d10 rebase -i: respect core.commentchar
Commit eff80a9 (Allow custom "comment char") introduced a custom comment
character for commit messages but did not teach git-rebase--interactive
to use it.

Change git-rebase--interactive to read core.commentchar and use its
value when generating commit messages and for the command list.

Signed-off-by: John Keeping <john@keeping.me.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-12 12:01:42 -08:00
Junio C Hamano
51c6de2bab Merge branch 'ph/rebase-preserve-all-merges'
An earlier change to add --keep-empty option broke "git rebase
--preserve-merges" and lost merge commits that end up being the
same as its parent.

* ph/rebase-preserve-all-merges:
  rebase --preserve-merges: keep all merge commits including empty ones
2013-01-21 20:15:15 -08:00
Phil Hord
986977847e rebase --preserve-merges: keep all merge commits including empty ones
Since 90e1818f9a  (git-rebase: add keep_empty flag, 2012-04-20)
'git rebase --preserve-merges' fails to preserve empty merge commits
unless --keep-empty is also specified.  Merge commits should be
preserved in order to preserve the structure of the rebased graph,
even if the merge commit does not introduce changes to the parent.

Teach rebase not to drop merge commits only because they are empty.

A special case which is not handled by this change is for a merge commit
whose parents are now the same commit because all the previous different
parents have been dropped as a result of this rebase or some previous
operation.

Signed-off-by: Phil Hord <hordp@cisco.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-14 09:15:39 -08:00
Junio C Hamano
68a31b7d95 Merge branch 'aw/rebase-i-edit-todo'
Teach an option to edit the insn sheet to "git rebase -i".

* aw/rebase-i-edit-todo:
  rebase -i: suggest using --edit-todo to fix an unknown instruction
  rebase -i: Add tests for "--edit-todo"
  rebase -i: Teach "--edit-todo" action
  rebase -i: Refactor help messages for todo file
  rebase usage: subcommands can not be combined with -i
2012-09-29 22:28:12 -07:00
Johannes Sixt
9c8e1011b9 rebase -i: suggest using --edit-todo to fix an unknown instruction
We have now an explicit UI to edit the todo sheet and need not disclose
the name of the file.

Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-09-19 12:52:10 -07:00
Johannes Sixt
ecfe1ea96f rebase -i: fix misleading error message after 'exec no-such' instruction
When the todo sheet of interactive rebase instructs to run a non-existing
command, the operation stops with the following error:

  Execution failed: no-such
  You can fix the problem, and then run

          git rebase --continue

  fatal: 'rebase' appears to be a git command, but we were not
  able to execute it. Maybe git-rebase is broken?

The reason is that the shell that attempted to run the command exits with
code 127. rebase--interactive just forwards this code to the caller (the
git wrapper). But our smart run-command infrastructure detects this
special exit code and turns it into ENOENT, which in turn is interpreted
by the git wrapper as if the external command that it just executed did
not exist. This is finally translated to the misleading last two lines in
error message cited above.

Fix it by translating the error code before it is forwarded.

Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-09-18 13:27:45 -07:00
Andrew Wong
eb9a7cb4bd rebase -i: Teach "--edit-todo" action
This allows users to edit the todo file while they're stopped in the
middle of an interactive rebase. When this action is executed, all
comments from the original todo file are stripped, and new help messages
are appended to the end.

Signed-off-by: Andrew Wong <andrew.kw.w@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-09-17 20:59:14 -07:00
Andrew Wong
fcc5ef1cc9 rebase -i: Refactor help messages for todo file
Signed-off-by: Andrew Wong <andrew.kw.w@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-09-17 20:58:55 -07:00
Junio C Hamano
e3f26752b5 Merge branch 'maint-1.7.11' into maint
* maint-1.7.11:
  Almost 1.7.11.6
  gitweb: URL-decode $my_url/$my_uri when stripping PATH_INFO
  rebase -i: use full onto sha1 in reflog
  sh-setup: protect from exported IFS
  receive-pack: do not leak output from auto-gc to standard output
  t/t5400: demonstrate breakage caused by informational message from prune
  setup: clarify error messages for file/revisions ambiguity
  send-email: improve RFC2047 quote parsing
  fsck: detect null sha1 in tree entries
  do not write null sha1s to on-disk index
  diff: do not use null sha1 as a sentinel value
2012-09-10 15:31:06 -07:00
Junio C Hamano
73eb89e759 Merge branch 'mg/rebase-i-onto-reflog-in-full' into maint-1.7.11
The reflog entries left by "git rebase" and "git rebase -i" were
inconsistent (the interactive one gave an abbreviated object name).

* mg/rebase-i-onto-reflog-in-full:
  rebase -i: use full onto sha1 in reflog
2012-09-10 15:26:03 -07:00
Junio C Hamano
4514de70c2 Merge branch 'mg/rebase-i-onto-reflog-in-full'
The reflog entries left by "git rebase" and "git rebase -i" were
inconsistent.

* mg/rebase-i-onto-reflog-in-full:
  rebase -i: use full onto sha1 in reflog
2012-08-29 14:50:01 -07:00
Michael J Gruber
1af221ef5c rebase -i: use full onto sha1 in reflog
'git rebase' uses the full onto sha1 for the reflog message whereas 'git
rebase -i' uses the short sha1. This is not only inconsistent, but can
lead to problems when the reflog is inspected at a later time at which
that abbreviation may have become ambiguous.

Make 'rebase -i' use the full onto sha1, as well.

Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-10 09:41:28 -07:00
Junio C Hamano
7b9f29c40f Merge branch 'cw/rebase-i-root'
Finishing touches to the "rebase -i --root" (new feature for
1.7.12).

* cw/rebase-i-root:
  rebase -i: handle fixup of root commit correctly
2012-07-25 15:46:59 -07:00
Chris Webb
2147f844ed rebase -i: handle fixup of root commit correctly
There is a bug with git rebase -i --root when a fixup or squash line is
applied to the new root. We attempt to amend the commit onto which they
apply with git reset --soft HEAD^ followed by a normal commit. Unlike a
real commit --amend, this sequence will fail against a root commit as it
has no parent.

Fix rebase -i to use commit --amend for fixup and squash instead, and
add a test for the case of a fixup of the root commit.

Signed-off-by: Chris Webb <chris@arachsys.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-07-24 09:03:33 -07:00
Junio C Hamano
0cd993a778 Merge branch 'cw/rebase-i-root'
"git rebase [-i] --root $tip" can now be used to rewrite all the
history down to the root.

* cw/rebase-i-root:
  t3404: make test 57 work with dash and others
  Add tests for rebase -i --root without --onto
  rebase -i: support --root without --onto
2012-07-15 21:38:42 -07:00
Junio C Hamano
a1204bd7c3 Merge branch 'mz/rebase-no-mbox'
Teach "am --rebasing" codepath to grab authorship, log message and
the patch text directly out of existing commits.  This will help
rebasing commits that have confusing "diff" output in their log
messages.

* mz/rebase-no-mbox:
  am: don't call mailinfo if $rebasing
  am --rebasing: get patch body from commit, not from mailbox
  rebase --root: print usage on too many args
  rebase: don't source git-sh-setup twice
2012-07-13 15:36:31 -07:00
Chris Webb
df5df20c13 rebase -i: support --root without --onto
Allow --root to be specified to rebase -i without --onto, making it
possible to edit and re-order all commits right back to the root(s).

If there is a conflict to be resolved when applying the first change,
the user will expect a sane index and working tree to get sensible
behaviour from git-diff and friends, so create a sentinel commit with an
empty tree to rebase onto. Automatically squash the sentinel with any
commits rebased directly onto it, so they end up as root commits in
their own right and retain their authorship and commit message.

Implicitly use rebase -i for non-interactive rebase of --root without
an --onto argument now that rebase -i can correctly do this.

Signed-off-by: Chris Webb <chris@arachsys.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-06-26 15:08:10 -07:00
Martin von Zweigbergk
572a7c52bb rebase: don't source git-sh-setup twice
The git-sh-setup script is already sourced in git-rebase.sh before
calling into git-rebase--(am|interactive|merge).sh. There are no other
callers of these scripts. It is therefore unnecessary to source
git-sh-setup again in them.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-06-26 13:17:50 -07:00
Lucien Kong
c214538416 rebase -i: teach "--exec <cmd>"
During an interactive rebase session, it is sometimes desirable to
run tests on each commit in the resulting history.  This can be done
by adding "exec <test command>" when editing the insn sheet, but the
command used for testing is often the same for all resulting commits.

By passing "--exec <cmd>" from the command line, automatically add
these "exec" lines after each commit in the final history.  To work
well with the --autosquash option, these are added at the end of
each run of "fixup" and "squash".

Helped-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Lucien Kong <Lucien.Kong@ensimag.imag.fr>
Signed-off-by: Valentin Duperray <Valentin.Duperray@ensimag.imag.fr>
Signed-off-by: Franck Jonas <Franck.Jonas@ensimag.imag.fr>
Signed-off-by: Thomas Nguy <Thomas.Nguy@ensimag.imag.fr>
Signed-off-by: Huynh Khoi Nguyen Nguyen <Huynh-Khoi-Nguyen.Nguyen@ensimag.imag.fr>
Signed-off-by: Matthieu Moy <Matthieu.Moy@grenoble-inp.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-06-13 15:25:44 -07:00
Junio C Hamano
bb16e8f422 Merge branch 'nl/rebase-i-cheat-sheet' into maint
* nl/rebase-i-cheat-sheet:
  rebase -i: remind that the lines are top-to-bottom
2012-05-10 10:29:14 -07:00
Junio C Hamano
1692579dd3 Merge branch 'nh/empty-rebase'
"git rebase" learned to optionally keep commits that do not introduce
any change in the original history.

By Neil Horman
* nh/empty-rebase:
  git-rebase: add keep_empty flag
  git-cherry-pick: Add test to validate new options
  git-cherry-pick: Add keep-redundant-commits option
  git-cherry-pick: add allow-empty option
2012-04-30 14:58:01 -07:00
Neil Horman
90e1818f9a git-rebase: add keep_empty flag
Add a command line switch to git-rebase to allow a user the ability to specify
that they want to keep any commits in a series that are empty.

When git-rebase's type is am, then this option will automatically keep any
commit that has a tree object identical to its parent.

This patch changes the default behavior of interactive rebases as well.  With
this patch, git-rebase -i will produce a revision set passed to
git-revision-editor, in which empty commits are commented out.  Empty commits
may be kept manually by uncommenting them.  If the new --keep-empty option is
used in an interactive rebase the empty commits will automatically all be
uncommented in the editor.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-24 15:24:14 -07:00
Junio C Hamano
1f64344659 Merge branch 'jk/rebase-i-submodule-conflict-only'
Giving "--continue" to a conflicted "rebase -i" session skipped a commit
that only results in changes to submodules.

By John Keeping
* jk/rebase-i-submodule-conflict-only:
  rebase -i continue: don't skip commits that only change submodules
2012-04-23 12:39:05 -07:00
John Keeping
a6754cda43 rebase -i continue: don't skip commits that only change submodules
When git-rebase--interactive stops due to a conflict and the only change
to be committed is in a submodule, the test for whether there is
anything to be committed ignores the staged submodule change.  This
leads rebase to skip creating the commit for the change.

While unstaged submodule changes should be ignored to avoid needing to
update submodules during a rebase, it is safe to remove the
--ignore-submodules option to diff-index because --cached ensures that
it is only checking the index.  This was discussed in [1] and a test is
included to ensure that unstaged changes are still ignored correctly.

[1] http://thread.gmane.org/gmane.comp.version-control.git/188713

Signed-off-by: John Keeping <john@keeping.me.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-09 15:08:18 -07:00
Junio C Hamano
8a93f9576a rebase -i: remind that the lines are top-to-bottom
Nelson Benitez Leon opened a discussion with a patch with this in the
note:

    Hi, I was using git rebase -i for some time now and never occured to
    me I could reorder the commit lines to affect the order the commits
    are applied, learnt that recently from a git tutorial.

Nelson's patch was to stress the fact that the lines in the insn sheet can
be re-ordered in a much more verbose way.  Let's add a one-liner reminder
and also remind that the lines in the insn sheet is read from top to
bottom, unlike the "git log" output.

Discussion-triggered-by: Nelson Benitez Leon
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-03-20 13:30:30 -07:00
Junio C Hamano
d9d73b37f3 Merge branch 'aw/rebase-i-stop-on-failure-to-amend' into maint
* aw/rebase-i-stop-on-failure-to-amend:
  rebase -i: interrupt rebase when "commit --amend" failed during "reword"
2011-12-28 11:32:34 -08:00
Junio C Hamano
e45c9b03c3 Merge branch 'aw/rebase-i-stop-on-failure-to-amend'
* aw/rebase-i-stop-on-failure-to-amend:
  rebase -i: interrupt rebase when "commit --amend" failed during "reword"
2011-12-16 22:33:37 -08:00
Andrew Wong
0becb3e4b9 rebase -i: interrupt rebase when "commit --amend" failed during "reword"
"commit --amend" could fail in cases like the user empties the commit
message, or pre-commit failed.  When it fails, rebase should be
interrupted and alert the user, rather than ignoring the error and
continue on rebasing.  This also gives users a way to gracefully
interrupt a "reword" if they decided they actually want to do an "edit",
or even "rebase --abort".

Signed-off-by: Andrew Wong <andrew.kw.w@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-30 11:30:53 -08:00
Peter Oberndorfer
821881d88d "rebase -i": support special-purpose editor to edit insn sheet
The insn sheet used by "rebase -i" is designed to be easily editable by
any text editor, but an editor that is specifically meant for it (but
is otherwise unsuitable for editing regular text files) could be useful
by allowing drag & drop reordering in a GUI environment, for example.

The GIT_SEQUENCE_EDITOR environment variable and/or the sequence.editor
configuration variable can be used to specify such an editor, while
allowing the usual editor to be used to edit commit log messages. As
usual, the environment variable takes precedence over the configuration
variable.

It is envisioned that other "sequencer" based tools will use the same
mechanism.

Signed-off-by: Peter Oberndorfer <kumbayo84@arcor.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-17 14:40:07 -07:00
Junio C Hamano
1686519a08 rebase -i: notice and warn if "exec $cmd" modifies the index or the working tree
If "exec $cmd" touched the index or the working tree, and exited with
non-zero status, the code did not check and warn that there now are
uncommitted changes.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-26 15:25:41 -07:00
Matthieu Moy
ffaaed88ae rebase -i: clean error message for --continue after failed exec
After an "exec false" stops the rebase and gives the control back to
the user, if changes are added to the index, "rebase --continue" fails
with this message, which may technically be correct, but does not point
at the real problem:

.../git-rebase--interactive: line 774: .../.git/rebase-merge/author-script: No such file or directory

We could try auto-amending HEAD, but this goes against the logic of
.git/rebase-merge/author-script (see also the testcase 'auto-amend only
edited commits after "edit"' in t3404-rebase-interactive.sh) to
auto-amend something the user hasn't explicitely asked to edit.

Instead of doing anything automatically, detect the situation and give a
clean error message. While we're there, also clarify the error message in
case '. "$author_script"' fails, which now corresponds to really weird
senario where the author script exists but can't be read.

Test-case-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-26 14:57:09 -07:00
Andrew Wong
12bf828348 rebase -i -p: include non-first-parent commits in todo list
Consider this graph:

        D---E    (topic, HEAD)
       /   /
  A---B---C      (master)
   \
    F            (topic2)

and the following three commands:
  1. git rebase -i -p A
  2. git rebase -i -p --onto F A
  3. git rebase -i -p B

Currently, (1) and (2) will pick B, D, C, and E onto A and F,
respectively.  However, (3) will only pick D and E onto B, but not C,
which is inconsistent with (1) and (2).  As a result, we cannot modify C
during the interactive-rebase.

The current behavior also creates a bug if we do:
  4. git rebase -i -p C

In (4), E is never picked.  And since interactive-rebase resets "HEAD"
to "onto" before picking any commits, D and E are lost after the
interactive-rebase.

This patch fixes the inconsistency and bug by ensuring that all children
of upstream are always picked.  This essentially reverts the commit:
  d80d6bc146

When compiling the todo list, commits reachable from "upstream" should
never be skipped under any conditions.  Otherwise, we lose the ability
to modify them like (3), and create a bug like (4).

Two of the tests contain a scenario like (3).  Since the new behavior
added more commits for picking, these tests need to be updated to
account for the additional pick lines.  A new test has also been added
for (4).

Signed-off-by: Andrew Wong <andrew.kw.w@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-06-19 14:37:23 -07:00
Jeff King
53f2ffa80c rebase: write a reflog entry when finishing
When we finish a rebase, our detached HEAD is at the final
result. We update the original branch ref with this result,
and then point the HEAD symbolic ref at the updated branch.
We write a reflog for the branch update, but not for the
update of HEAD.

Because we're already at the final result on the detached
HEAD, moving to the branch actually doesn't change our
commit sha1 at all. So in that sense, a reflog entry would
be pointless.

However, humans do read reflogs, and an entry saying "rebase
finished: returning to refs/heads/master" can be helpful in
understanding what is going on.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-27 15:52:03 -07:00
Junio C Hamano
9fdc1cc872 Merge branch 'aw/maint-rebase-i-p-no-ff'
* aw/maint-rebase-i-p-no-ff:
  git-rebase--interactive.sh: preserve-merges fails on merges created with no-ff

Conflicts:
	git-rebase--interactive.sh
2011-05-06 10:50:00 -07:00
Andrew Wong
c192f9c865 git-rebase--interactive.sh: preserve-merges fails on merges created with no-ff
'git rebase' uses 'git merge' to preserve merges (-p).  This preserves
the original merge commit correctly, except when the original merge
commit was created by 'git merge --no-ff'.  In this case, 'git rebase'
will fail to preserve the merge, because during 'git rebase', 'git
merge' will simply fast-forward and skip the commit.  For example:

               B
              / \
             A---M
            /
    ---o---O---P---Q

If we try to rebase M onto P, we lose the merge commit and this happens:

                 A---B
                /
    ---o---O---P---Q

To correct this, we simply do a "no fast-forward" on all merge commits
when rebasing.  Since by the time we decided to do a 'git merge' inside
'git rebase', it means there was a merge originally, so 'git merge'
should always create a merge commit regardless of what the merge
branches look like. This way, when rebase M onto P from the above
example, we get:

                   B
                  / \
                 A---M
                /
    ---o---O---P---Q

Signed-off-by: Andrew Wong <andrew.kw.w@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-04-28 09:56:55 -07:00
Martin von Zweigbergk
fdb76c104a Makefile: do not install sourced rebase scripts
When git-rebase.sh recently started sourcing
git-rebase--interactive.sh instead of executing it, executable bit of
the latter file should have been turned off and it should have been
moved from SCRIPT_SH to SCRIPT_LIB in the Makefile. Its two new
siblings, git-rebase--am.sh and git-rebase--merge.sh (whose executable
bits are already off) should also be moved to SCRIPT_LIB in the
Makefile.

Reported-by: Johannes Sixt <j6t@kdbg.org>
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Martin von Zweigbergk <martin.von.zweigbergk@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-25 12:19:41 -08:00
Martin von Zweigbergk
c71f8f3d50 rebase -i: remove unnecessary state rebase-root
Before calling 'git cherry-pick', interactive rebase currently checks
if we are rebasing from root (if --root was passed). If we are, the
'--ff' flag to 'git cherry-pick' is omitted. However, according to the
documentation for 'git cherry-pick --ff', "If the current HEAD is the
same as the parent of the cherry-picked commit, then a fast forward to
this commit will be performed.". This should never be the case when
rebasing from root, so it should not matter whether --ff is passed, so
simplify the code by removing the condition.

Signed-off-by: Martin von Zweigbergk <martin.von.zweigbergk@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-10 14:08:10 -08:00
Martin von Zweigbergk
c6f7de5455 rebase -i: don't read unused variable preserve_merges
Since 8e4a91b (rebase -i: remember the settings of -v, -s and -p when
interrupted, 2007-07-08), the variable preserve_merges (then called
PRESERVE_MERGES) was detected from the state saved in
$GIT_DIR/rebase-merge in order to be used when the rebase resumed, but
its value was never actually used. The variable's value was only used
when the rebase was initated.

Signed-off-by: Martin von Zweigbergk <martin.von.zweigbergk@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-10 14:08:10 -08:00
Martin von Zweigbergk
80ff47957b rebase: remember strategy and strategy options
When a rebase is resumed, interactive rebase remembers any merge
strategy passed when the rebase was initated. Make non-interactive
rebase remember any merge strategy as well. Also make non-interactive
rebase remember any merge strategy options.

To be able to resume a rebase that was initiated with an older version
of git (older than this commit), make sure not to expect the saved
option files to exist.

Test case idea taken from Junio's 71fc224 (t3402: test "rebase
-s<strategy> -X<opt>", 2010-11-11).

Signed-off-by: Martin von Zweigbergk <martin.von.zweigbergk@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-10 14:08:09 -08:00
Martin von Zweigbergk
7b37a7c620 rebase: remember verbose option
Currently, only interactive rebase remembers the value of the '-v'
flag from the initial invocation. Make non-interactive rebase also
remember it.

Signed-off-by: Martin von Zweigbergk <martin.von.zweigbergk@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-10 14:08:09 -08:00
Martin von Zweigbergk
84df4560ed rebase: extract code for writing basic state
Extract the code for writing the state to rebase-apply/ or
rebase-merge/ when a rebase is initiated. This will make it easier to
later make both interactive and non-interactive rebase remember the
options used.

Note that non-interactive rebase stores the sha1 of the original head
in a file called orig-head, while interactive rebase stores it in a
file called head. Change this by writing to orig-head in both
cases. When reading, try to read from orig-head. If that fails, read
from head instead. This protects users who upgraded git while they had
an ongoing interactive rebase, while still making it possible to
remove the code that reads from head at some point in the future.

Helped-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Martin von Zweigbergk <martin.von.zweigbergk@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-10 14:08:09 -08:00
Martin von Zweigbergk
2959c28366 rebase: factor out sub command handling
Factor out the common parts of the handling of the sub commands
'--continue', '--skip' and '--abort'. The '--abort' handling can
handled completely in git-rebase.sh.

After this refactoring, the calls to git-rebase--am.sh,
git-rebase--merge.sh and git-rebase--interactive.sh will be better
aligned. There will only be one call to interactive rebase that will
shortcut the very last part of git-rebase.sh.

Signed-off-by: Martin von Zweigbergk <martin.von.zweigbergk@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-10 14:08:09 -08:00
Martin von Zweigbergk
4974c2caa2 rebase: make -v a tiny bit more verbose
To make it possible to later remove the handling of --abort from
git-rebase--interactive.sh, align the implementation in git-rebase.sh
with the former by making it a bit more verbose.

Signed-off-by: Martin von Zweigbergk <martin.von.zweigbergk@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-10 14:08:09 -08:00
Martin von Zweigbergk
431b7e7818 rebase -i: align variable names
Rename variables HEAD and OLDHEAD to orig_head and HEADNAME to
head_name, which are the names used in git-rebase.sh. This prepares
for factoring out of the code that persists these variables during the
entire rebase process. Using the same variable names to mean the same
thing in both files also makes the code easier to read.

While at it, also remove the DOTEST variable and use the state_dir
variable that was inherited from git-rebase.sh instead.

Signed-off-by: Martin von Zweigbergk <martin.von.zweigbergk@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-10 14:08:09 -08:00
Martin von Zweigbergk
89c7ae9c3b rebase: show consistent conflict resolution hint
When rebase stops due to conflict, interactive rebase currently
displays a different hint to the user than non-interactive rebase
does. Use the same message for both types of rebase.

Signed-off-by: Martin von Zweigbergk <martin.von.zweigbergk@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-10 14:08:09 -08:00
Martin von Zweigbergk
cc1453e1da rebase: factor out call to pre-rebase hook
Remove the call to the pre-rebase hook from
git-rebase--interactive.sh and rely on the call in
git-rebase.sh.

Signed-off-by: Martin von Zweigbergk <martin.von.zweigbergk@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-10 14:08:08 -08:00
Martin von Zweigbergk
caf038cb4e rebase: factor out clean work tree check
Remove the check for clean work tree from git-rebase--interactive.sh and
rely on the check in git-rebase.sh.

Signed-off-by: Martin von Zweigbergk <martin.von.zweigbergk@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-10 14:08:08 -08:00
Martin von Zweigbergk
71786f54c4 rebase: factor out reference parsing
Remove the parsing and validation of references (onto, upstream, branch)
from git-rebase--interactive.sh and rely on the information exported from
git-rebase.sh.

By using the parsing of the --onto parameter in git-rebase.sh, this
improves the error message when the parameter is invalid.

Signed-off-by: Martin von Zweigbergk <martin.von.zweigbergk@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-10 14:08:08 -08:00
Martin von Zweigbergk
8f9bfb64c5 rebase: reorder validation steps
Reorder validation steps in preparation for the validation to be factored
out from git-rebase--interactive.sh into git-rebase.sh.

The main functional difference is that the pre-rebase hook will no longer
be run if the work tree is dirty.

Signed-off-by: Martin von Zweigbergk <martin.von.zweigbergk@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-10 14:08:08 -08:00
Martin von Zweigbergk
f3889b8401 rebase -i: remove now unnecessary directory checks
Remove directory checks from git-rebase--interactive.sh that are done in
git-rebase.sh.

Signed-off-by: Martin von Zweigbergk <martin.von.zweigbergk@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-10 14:08:08 -08:00
Martin von Zweigbergk
cf432ca051 rebase: factor out command line option processing
Factor out the command line processing in git-rebase--interactive.sh
to git-rebase.sh. Store the options in variables in git-rebase.sh and
then source git-rebase--interactive.sh.

Suggested-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Martin von Zweigbergk <martin.von.zweigbergk@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-10 14:08:08 -08:00
Martin von Zweigbergk
9765b6abeb rebase: align variable content
Make sure to interpret variables with the same name in the same way in
git-rebase.sh and git-rebase--interactive.sh. This will make it easier
to factor out code from git-rebase.sh to git-rebase--interactive and
export the variables.

Signed-off-by: Martin von Zweigbergk <martin.von.zweigbergk@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-10 14:08:08 -08:00
Martin von Zweigbergk
6bb4e485cf rebase: align variable names
git-rebase--interactive.sh will soon be sourced from
git-rebase.sh. Align the names of variables used in these scripts to
prepare for that.

Some names in git-rebase--interactive.sh, such as "author_script" and
"amend", are currently used in their upper case form to refer to a
file and in their lower case form to refer to something else. In these
cases, change the name of the existing lower case variable and
downcase the name of the variable that refers to the file.

Currently, git-rebase.sh uses mostly lower case variable names, while
git-rebase--interactive.sh uses mostly upper case variable names. For
consistency, downcase all variables, not just the ones that will be
shared between the two script files.

Helped-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Martin von Zweigbergk <martin.von.zweigbergk@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-10 14:08:08 -08:00
Martin von Zweigbergk
3426232248 rebase: act on command line outside parsing loop
To later be able to use the command line processing in git-rebase.sh
for both interactive and non-interactive rebases, move anything that
is specific to non-interactive rebase outside of the parsing
loop. Keep only parsing and validation of command line options in the
loop.

Signed-off-by: Martin von Zweigbergk <martin.von.zweigbergk@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-10 14:08:08 -08:00
Junio C Hamano
99e63ef24e Merge branch 'maint'
* maint:
  rebase -i: clarify in-editor documentation of "exec"
  tests: sanitize more git environment variables
  fast-import: treat filemodify with empty tree as delete
  rebase: give a better error message for bogus branch
  rebase: use explicit "--" with checkout

Conflicts:
	t/t9300-fast-import.sh
2011-01-27 10:27:49 -08:00
Jonathan Nieder
960ac5ff99 rebase -i: clarify in-editor documentation of "exec"
The hints in the current "instruction sheet" template look like so:

 # Rebase 3f14246..a1d7e01 onto 3f14246
 #
 # Commands:
 #  p, pick = use commit
 #  r, reword = use commit, but edit the commit message
 #  e, edit = use commit, but stop for amending
 #  s, squash = use commit, but meld into previous commit
 #  f, fixup = like "squash", but discard this commit's log message
 #  x <cmd>, exec <cmd> = Run a shell command <cmd>, and stop if it fails
 #
 # If you remove a line here THAT COMMIT WILL BE LOST.
 # However, if you remove everything, the rebase will be aborted.
 #

This does not make it clear that the format of each line is

	<insn> <commit id> <explanatory text that will be printed>

but the reader will probably infer that from the automatically
generated pick examples above it.

What about the "exec" instruction?  By analogy, I might imagine that
the format of that line is "exec <command> <explanatory text>", and
the "x <cmd>" hint does not address that question (at first I read it
as taking an argument <cmd> that is the name of a shell).  Meanwhile,
the mention of <cmd> makes the hints harder to scan as a table.

So remove the <cmd> and add some words to remind the reader that
"exec" runs a command named by the rest of the line.  To make room, it
is left to the manpage to explain that that command is run using
$SHELL and that nonzero status from that command will pause the
rebase.

Wording from Junio.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-01-27 10:24:09 -08:00
Jeff King
3b21a438c9 rebase: use explicit "--" with checkout
In the case of a ref/pathname conflict, checkout will
already do the right thing and checkout the ref. However,
for a non-existant ref, this has two advantages:

  1. If a file with that pathname exists, rebase will
     refresh the file from the index and then rebase the
     current branch instead of producing an error.

  2. If no such file exists, the error message using an
     explicit "--" is better:

       # before
       $ git rebase -i origin bogus
       error: pathspec 'bogus' did not match any file(s) known to git.
       Could not checkout bogus

       # after
       $ git rebase -i origin bogus
       fatal: invalid reference: bogus
       Could not checkout bogus

The problems seem to be trigger-able only through "git
rebase -i", as regular git-rebase checks the validity of the
branch parameter as a ref very early on. However, it doesn't
hurt to be defensive.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-01-26 17:26:58 -08:00