Commit Graph

293 Commits

Author SHA1 Message Date
Junio C Hamano
f60b5dc68c Merge branch 'gr/rebase-i-drop-warn'
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
2015-10-30 13:07:06 -07:00
Junio C Hamano
39743cf554 rebase-i: work around Windows CRLF line endings
Editors on Windows can and do save text files with CRLF line
endings, which is the convention on the platform.  We are seeing
reports that the "read" command in a port of bash to the environment
however does not strip the CRLF at the end, not adjusting for the
same convention on the platform.

This breaks the recently added sanity checks for the insn sheet fed
to "rebase -i"; instead of an empty line (hence nothing in $command),
the script was getting a lone CR in there.

Special case a lone CR and treat it the same way as an empty line to
work this around.

This patch (also) passes the test with Git for Windows, where the
issue was seen first.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-10-28 10:06:46 -07:00
Junio C Hamano
633a8bdddf Merge branch 'gr/rebase-i-drop-warn'
"git rebase -i" had a minor regression recently, which stopped
considering a line that begins with an indented '#' in its insn
sheet not a comment, which is now fixed.

* gr/rebase-i-drop-warn:
  rebase-i: loosen over-eager check_bad_cmd check
  rebase-i: explicitly accept tab as separator in commands
2015-10-15 15:43:44 -07:00
Matthieu Moy
1db168ee97 rebase-i: loosen over-eager check_bad_cmd check
804098bb (git rebase -i: add static check for commands and SHA-1,
2015-06-29) tried to check all insns before running any in the todo
list, but it did so by implementing its own parser that is a lot
stricter than necessary.  We used to allow lines that are indented
(including comment lines), and we used to allow a whitespace between
the insn and the commit object name to be HT, among other things,
that are flagged as an invalid line by mistake.

Fix this by using the same tokenizer that is used to parse the todo
list file in the new check.

Whether it's a good thing to accept indented comments is
debatable (other commands like "git commit" do not accept them), but we
already accepted them in the past, and some people and scripts rely on
this behavior. Also, a line starting with space followed by a '#' cannot
have any meaning other than being a comment, hence it doesn't harm to
accept them as comments.

Largely based on patch by: Junio C Hamano <gitster@pobox.com>

[jc: updated test with quickfix from Torsten Bögershausen]

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-10-05 22:39:56 -07:00
Matthieu Moy
31bff64100 rebase-i: explicitly accept tab as separator in commands
The git-rebase-todo is parsed several times with different parsers. In
principle, the user input is normalized by transform_todo_ids and
further parsing can be stricter.

In case the user wrote

pick deadbeef<TAB>commit message

the parser of transform_todo_ids was considering the sha1 to be
"deadbeef<TAB>commit", and was leaving the tab in the transformed sheet.
In practice, this went unnoticed since the actual command interpretation
was done later in do_next which did accept the tab as a separator.

Make it explicit in the code of transform_todo_ids that tabs are
accepted. This way, code that mimicks it will also accept tabs as
separator.

A similar construct appears in skip_unnecessary_picks, but this one
comes after transform_todo_ids, hence reads the normalized format, so it
needs not be changed.

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-10-02 11:36:44 -07:00
Junio C Hamano
3a760cad79 Merge branch 'gr/rebase-i-drop-warn'
Add "drop commit-object-name subject" command as another way to
skip replaying of a commit in "rebase -i", and then punish those
who do not use it (and instead just remove the lines) by throwing
a warning.

* gr/rebase-i-drop-warn:
  git rebase -i: add static check for commands and SHA-1
  git rebase -i: warn about removed commits
  git-rebase -i: add command "drop" to remove a commit
2015-08-03 11:01:22 -07:00
Junio C Hamano
9f56db7caf Merge branch 'mr/rebase-i-customize-insn-sheet'
"git rebase -i"'s list of todo is made configurable.

* mr/rebase-i-customize-insn-sheet:
  git-rebase--interactive.sh: add config option for custom instruction format
2015-08-03 11:01:16 -07:00
Junio C Hamano
e01787f1a1 Merge branch 'js/rebase-i-clean-up-upon-continue-to-skip'
Abandoning an already applied change in "git rebase -i" with
"--continue" left CHERRY_PICK_HEAD and confused later steps.

* js/rebase-i-clean-up-upon-continue-to-skip:
  rebase -i: do not leave a CHERRY_PICK_HEAD file behind
  t3404: demonstrate CHERRY_PICK_HEAD bug
2015-07-13 14:00:25 -07:00
Galan Rémi
804098bb30 git rebase -i: add static check for commands and SHA-1
Check before the start of the rebasing if the commands exists, and for
the commands expecting a SHA-1, check if the SHA-1 is present and
corresponds to a commit. In case of error, print the error, stop git
rebase and prompt the user to fix with 'git rebase --edit-todo' or to
abort.

This allows to avoid doing half of a rebase before finding an error
and giving back what's left of the todo list to the user and prompt
him to fix when it might be too late for him to do so (he might have
to abort and restart the rebase).

Signed-off-by: Galan Rémi <remi.galan-alfonso@ensimag.grenoble-inp.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-30 12:14:25 -07:00
Galan Rémi
3707995960 git rebase -i: warn about removed commits
Check if commits were removed (i.e. a line was deleted) and print
warnings or stop git rebase depending on the value of the
configuration variable rebase.missingCommitsCheck.

This patch gives the user the possibility to avoid silent loss of
information (losing a commit through deleting the line in this case)
if he wants.

Add the configuration variable rebase.missingCommitsCheck.
    - When unset or set to "ignore", no checking is done.
    - When set to "warn", the commits are checked, warnings are
      displayed but git rebase still proceeds.
    - When set to "error", the commits are checked, warnings are
      displayed and the rebase is stopped.
      (The user can then use 'git rebase --edit-todo' and
      'git rebase --continue', or 'git rebase --abort')

rebase.missingCommitsCheck defaults to "ignore".

Signed-off-by: Galan Rémi <remi.galan-alfonso@ensimag.grenoble-inp.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-30 12:14:25 -07:00
Galan Rémi
c9266d5894 git-rebase -i: add command "drop" to remove a commit
Instead of removing a line to remove the commit, you can use the
command "drop" (just like "pick" or "edit"). It has the same effect as
deleting the line (removing the commit) except that you keep a visual
trace of your actions, allowing a better control and reducing the
possibility of removing a commit by mistake.

Signed-off-by: Galan Rémi <remi.galan-alfonso@ensimag.grenoble-inp.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-30 12:14:25 -07:00
Johannes Schindelin
0e0aff4b4c rebase -i: do not leave a CHERRY_PICK_HEAD file behind
When skipping commits whose changes were already applied via `git rebase
--continue`, we need to clean up said file explicitly.

The same is not true for `git rebase --skip` because that will execute
`git reset --hard` as part of the "skip" handling in git-rebase.sh, even
before git-rebase--interactive.sh is called.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-29 13:12:43 -07:00
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