Commit Graph

76 Commits

Author SHA1 Message Date
Philippe Blain
c6eec9cb36 revisions.txt: be explicit about commands writing 'ORIG_HEAD'
When mentioning 'ORIG_HEAD', be explicit about which command write that
pseudo-ref, namely 'git am', 'git merge', 'git rebase' and 'git reset'.

Signed-off-by: Philippe Blain <levraiphilippeblain@gmail.com>
Acked-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-01-13 09:55:46 -08:00
René Scharfe
9f91da752f revisions.txt: unspecify order of resolved parts of ^!
gitrevisions(7) says that <rev>^! resolves to <rev> and then all the
parents of <rev>.  revision.c::handle_revision_arg_1() actually adds
all parents first, then <rev>.  Change the documentation to leave the
order unspecified, to avoid misleading readers.

Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-10-01 15:58:36 -07:00
Junio C Hamano
32290a5818 Merge branch 'tk/rev-parse-doc-clarify-at-u' into maint
Doc update.
source: <pull.1265.v2.git.1655960512385.gitgitgadget@gmail.com>

* tk/rev-parse-doc-clarify-at-u:
  rev-parse: documentation adjustment - mention remote tracking with @{u}
2022-07-27 13:19:52 -07:00
Tao Klerks
8cdab69d96 rev-parse: documentation adjustment - mention remote tracking with @{u}
The documentation explained the conversion from remote branch path to
local tracking ref path for @{push}, but not for @{upstream}.

Add the explanation to @{upstream}, and reference it in @{push} to avoid
undue repetition.

Signed-off-by: Tao Klerks <tao@klerks.biz>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-06-23 08:35:09 -07:00
Jeff King
5fd9d1738e revisions.txt: escape "..." to avoid asciidoc horizontal ellipsis
In asciidoc's HTML output of the "gitrevisions" and "git-rev-parse"
documentation, the header:

  The ... (three-dot) Symmetric Difference Notation

is rendered using "&8230;", a horizontal ellipsis. This is visually
ugly, but also hard to search for or cut-and-paste. We really mean three
ascii dots (0x2e) here, so let's make sure it renders as such.

The simplest way to do that is just escaping the leading dot, as the
instances in the rest of the section do. Arguably this should all be
converted to use backticks, which would let us drop the quoting here and
elsewhere (e.g., {carat}). But that does change the rendering slightly.
So let's fix the bug first, and we can decide on migrating the whole
section separately.

Note that this produces an empty doc-diff of the manpages. Curiously,
asciidoc produces the same ellipsis entity in the XML file, but docbook
then converts it back into three literal dots for the roff output! So
the roff manpages have been correct all along (which may be a reason
nobody noticed this until now).

Reported-by: Arthur Milchior
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-06-22 16:49:45 -07:00
Junio C Hamano
f302c1e4aa revisions(7): clarify that most commands take a single revision range
Sometimes new people are confused by how a revision "range" works,
in that it is not a random collection of commits but a set of
commits that are all connected to each other, and most Git commands
work on a single such "range".

Give an example to clarify it.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-05-18 10:08:03 +09:00
Philippe Blain
f5d9e91ea0 revisions.txt: describe 'rev1 rev2 ...' meaning for ranges
The "Specifying ranges" section does not mention explicitly that
several commits can be specified to form a range.

Add a mention to that effect.

Signed-off-by: Philippe Blain <levraiphilippeblain@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-07-08 22:08:53 -07:00
Michael F. Schönitzer
39102cf4fe docs: fix minor glitch in illustration
In the example by Jon Loeliger the selector 'A^2' was duplicated. This
might confuse readers.

Signed-off-by: Michael F. Schönitzer <michael@schoenitzer.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-04-21 13:21:52 -07:00
Junio C Hamano
f496b064fc Merge branch 'nd/switch-and-restore'
Two new commands "git switch" and "git restore" are introduced to
split "checking out a branch to work on advancing its history" and
"checking out paths out of the index and/or a tree-ish to work on
advancing the current history" out of the single "git checkout"
command.

* nd/switch-and-restore: (46 commits)
  completion: disable dwim on "git switch -d"
  switch: allow to switch in the middle of bisect
  t2027: use test_must_be_empty
  Declare both git-switch and git-restore experimental
  help: move git-diff and git-reset to different groups
  doc: promote "git restore"
  user-manual.txt: prefer 'merge --abort' over 'reset --hard'
  completion: support restore
  t: add tests for restore
  restore: support --patch
  restore: replace --force with --ignore-unmerged
  restore: default to --source=HEAD when only --staged is specified
  restore: reject invalid combinations with --staged
  restore: add --worktree and --staged
  checkout: factor out worktree checkout code
  restore: disable overlay mode by default
  restore: make pathspec mandatory
  restore: take tree-ish from --source option instead
  checkout: split part of it to new command 'restore'
  doc: promote "git switch"
  ...
2019-07-09 15:25:44 -07:00
Junio C Hamano
7a188da354 Merge branch 'dl/rev-tilde-doc-clarify'
Docfix.

* dl/rev-tilde-doc-clarify:
  revisions.txt: remove ambibuity between <rev>:<path> and :<path>
  revisions.txt: mention <rev>~ form
  revisions.txt: mark optional rev arguments with []
  revisions.txt: change "rev" to "<rev>"
2019-05-13 23:50:34 +09:00
Andreas Heiduk
4ad1b2c7a6 revisions.txt: remove ambibuity between <rev>:<path> and :<path>
The revision ':README' is mentioned as an example for '<rev>:<path>'
but the explanation forwards to the ':<n>:<path>' syntax. At the same
time ':<n>:<path>' did not mark the '<n>:' as optional.

Signed-off-by: Andreas Heiduk <asheiduk@gmail.com>
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-08 00:09:06 +09:00
Denton Liu
6a12e99a52 revisions.txt: mention <rev>~ form
In revisions.txt, the '<rev>^' form is mentioned but the '<rev>~' form
is missing. Although both forms are essentially equivalent (they each
get the first parent of the specified revision), we should mention the
latter for completeness. Make this change.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-08 00:09:06 +09:00
Denton Liu
d86d207471 revisions.txt: mark optional rev arguments with []
In revisions.txt, an optional rev argument was not distinguised.
Instead, a user had to continue and read the description in order to
learn that the argument was optional.

Since the [] notation for an optional argument is common-knowledge in
the Git documentation, mark optional arguments with [] so that it's more
obvious for the reader.

Helped-by: Andreas Heiduk <asheiduk@gmail.com>
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-08 00:09:06 +09:00
Denton Liu
e277ff43d3 revisions.txt: change "rev" to "<rev>"
In revisions.txt, there were some instances of a rev argument being
written as "rev". However, since they didn't mean the string literal,
write "<rev>", instead.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-08 00:09:06 +09:00
Nguyễn Thái Ngọc Duy
328c6cb853 doc: promote "git switch"
The new command "git switch" is added to avoid the confusion of
one-command-do-all "git checkout" for new users. They are also helpful
to avoid ambiguation context.

For these reasons, promote it everywhere possible. This includes
documentation, suggestions/advice from other commands...

The "Checking out files" progress line in unpack-trees.c is also updated
to "Updating files" to be neutral to both git-checkout and git-switch.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-04-02 13:57:00 +09:00
Corentin BOMPARD
68ed71b53c doc: format pathnames and URLs as monospace.
Applying CodingGuidelines about monospace on pathnames and URLs.

See Documentation/CodingGuidelines.txt for more information.

Signed-off-by: Corentin BOMPARD <corentin.bompard@etu.univ-lyon1.fr>
Signed-off-by: Nathan BERBEZIER <nathan.berbezier@etu.univ-lyon1.fr>
Signed-off-by: Pablo CHABANNE <pablo.chabanne@etu.univ-lyon1.fr>
Signed-off-by: Matthieu MOY <matthieu.moy@univ-lyon1.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-03-13 11:14:22 +09:00
Junio C Hamano
53cae9e0f8 Merge branch 'wc/find-commit-with-pattern-on-detached-head'
"git rev-parse ':/substring'" did not consider the history leading
only to HEAD when looking for a commit with the given substring,
when the HEAD is detached.  This has been fixed.

* wc/find-commit-with-pattern-on-detached-head:
  sha1-name.c: for ":/", find detached HEAD commits
2018-07-24 14:50:49 -07:00
William Chargin
6b3351e799 sha1-name.c: for ":/", find detached HEAD commits
This patch broadens the set of commits matched by ":/<pattern>" to
include commits reachable from HEAD but not any named ref. This avoids
surprising behavior when working with a detached HEAD and trying to
refer to a commit that was recently created and only exists within the
detached state.

If multiple worktrees exist, only the current worktree's HEAD is
considered reachable. This is consistent with the existing behavior for
other per-worktree refs: e.g., bisect refs are considered reachable, but
only within the relevant worktree.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: William Chargin <wchargin@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-12 12:07:25 -07:00
Junio C Hamano
d7e9611025 Merge branch 'bc/asciidoctor-tab-width'
Asciidoctor gives a reasonable imitation for AsciiDoc, but does not
render illustration in a literal block correctly when indented with
HT by default. The problem is fixed by forcing 8-space tabs.

* bc/asciidoctor-tab-width:
  Documentation: render revisions correctly under Asciidoctor
  Documentation: use 8-space tabs with Asciidoctor
2018-05-23 14:38:25 +09:00
brian m. carlson
379805051d Documentation: render revisions correctly under Asciidoctor
When creating a literal block from an indented block without any sort of
delimiters, Asciidoctor strips off all leading whitespace, resulting in
a misrendered chart.  Use an explicit literal block to indicate to
Asciidoctor that we want to keep the leading whitespace.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-07 12:40:08 +09:00
Andreas Heiduk
88184c1fc2 doc: add note about shell quoting to revision.txt
Signed-off-by: Andreas Heiduk <asheiduk@gmail.com>
Reviewed-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-06 18:38:43 +09:00
Ann T Ropea
9fe923886f Documentation: revisions: fix typo: "three dot" ---> "three-dot" (in line with "two-dot").
Signed-off-by: Ann T Ropea <bedhanger@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-04 08:25:06 -08:00
Junio C Hamano
5feb8b8429 Merge branch 'vn/revision-shorthand-for-side-branch-log'
Doc cleanup.

* vn/revision-shorthand-for-side-branch-log:
  doc/revisions: remove brackets from rev^-n shorthand
2017-04-19 21:37:25 -07:00
Kyle Meyer
733e064d98 doc/revisions: remove brackets from rev^-n shorthand
Given that other instances of "{...}" in the revision documentation
represent literal characters of revision specifications, describing
the rev^-n shorthand as "<rev>^-{<n>}" incorrectly suggests that
something like "master^-{1}" is an acceptable form.

Signed-off-by: Kyle Meyer <kyle@kyleam.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-16 23:42:43 -07:00
Ævar Arnfjörð Bjarmason
244ea1b5e4 rev-parse: match @{upstream}, @{u} and @{push} case-insensitively
Change the revision parsing logic to match @{upstream}, @{u} & @{push}
case-insensitively.

Before this change supplying anything except the lower-case forms
emits an "unknown revision or path not in the working tree"
error. This change makes upper-case & mixed-case versions equivalent
to the lower-case versions.

The use-case for this is being able to hold the shift key down while
typing @{u} on certain keyboard layouts, which makes the sequence
easier to type, and reduces cases where git throws an error at the
user where it could do what he means instead.

These suffixes now join various other suffixes & special syntax
documented in gitrevisions(7) that matches case-insensitively. A table
showing the status of the various forms documented there before &
after this patch is shown below. The key for the table is:

 - CI  = Case Insensitive
 - CIP = Case Insensitive Possible (without ambiguities)
 - AG  = Accepts Garbage (.e.g. @{./.4.minutes./.})

Before this change:

    |----------------+-----+------+-----|
    | What?          | CI? | CIP? | AG? |
    |----------------+-----+------+-----|
    | @{<date>}      | Y   | Y    | Y   |
    | @{upstream}    | N   | Y    | N   |
    | @{push}        | N   | Y    | N   |
    |----------------+-----+------+-----|

After it:

    |----------------+-----+------+-----|
    | What?          | CI? | CIP? | AG? |
    |----------------+-----+------+-----|
    | @{<date>}      | Y   | Y    | Y   |
    | @{upstream}    | Y   | Y    | N   |
    | @{push}        | Y   | Y    | N   |
    |----------------+-----+------+-----|

The ^{<type>} suffix is not made case-insensitive, because other
places that take <type> like "cat-file -t <type>" do want them case
sensitively (after all we never declared that type names are case
insensitive). Allowing case-insensitive typename only with this syntax
will make the resulting Git as a whole inconsistent.

This change was independently authored to scratch a longtime itch, but
when I was about to submit it I discovered that a similar patch had
been submitted unsuccessfully before by Conrad Irwin in August 2011 as
"rev-parse: Allow @{U} as a synonym for
@{u}" (<1313287071-7851-1-git-send-email-conrad.irwin@gmail.com>).

The tests for this patch are more exhaustive than in the 2011
submission. The starting point for them was to first change the code
to only support upper-case versions of the existing words, seeing what
broke, and amending the breaking tests to check upper case & mixed
case as appropriate, and where not redundant to other similar
tests. The implementation itself is equivalent.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-27 10:45:44 -07:00
Vegard Nossum
8779351dd7 revision: new rev^-n shorthand for rev^n..rev
"git log rev^..rev" is commonly used to show all work done on and merged
from a side branch. This patch introduces a shorthand "rev^-" for this
and additionally allows "rev^-$n" to mean "reachable from rev, excluding
what is reachable from the nth parent of rev". For example, for a
two-parent merge, you can use rev^-2 to get the set of commits which were
made to the main branch while the topic branch was prepared.

Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-27 10:59:28 -07:00
Junio C Hamano
f0b2db228b Merge branch 'po/range-doc' into maint
Clarify various ways to specify the "revision ranges" in the
documentation.

* po/range-doc:
  doc: revisions: sort examples and fix alignment of the unchanged
  doc: revisions: show revision expansion in examples
  doc: revisions - clarify reachability examples
  doc: revisions - define `reachable`
  doc: gitrevisions - clarify 'latter case' is revision walk
  doc: gitrevisions - use 'reachable' in page description
  doc: revisions: single vs multi-parent notation comparison
  doc: revisions: extra clarification of <rev>^! notation effects
  doc: revisions: give headings for the two and three dot notations
  doc: show the actual left, right, and boundary marks
  doc: revisions - name the left and right sides
  doc: use 'symmetric difference' consistently
2016-09-19 13:51:38 -07:00
Philip Oakley
a117be4d34 doc: revisions: sort examples and fix alignment of the unchanged
The previous commit adjusted the column alignment for revision
examples which show expansion. Fix the unchanged examples and sort
those that show expansions to the end of the list.

Signed-off-by: Philip Oakley <philipoakley@iee.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-08-13 19:36:45 -07:00
Philip Oakley
7a5370e612 doc: revisions: show revision expansion in examples
The revisions examples show the revison arguments and the selected
commits, but do not show the intermediate step of the expansion of
the special 'range' notations. Extend the examples, including an
all-parents multi-parent merge commit example.

Sort the examples and fix the alignment for those unaffected
in the next commit.

Signed-off-by: Philip Oakley <philipoakley@iee.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-08-13 19:36:44 -07:00
Philip Oakley
1afe13b98a doc: revisions - clarify reachability examples
For the r1..r2 case, the exclusion of r1, rather than inclusion of r2,
 would be the unexpected case in natural language for a simple linear
 development, i.e. start..end excludes start.

Signed-off-by: Philip Oakley <philipoakley@iee.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-08-13 19:36:44 -07:00
Philip Oakley
0b451248b3 doc: revisions - define reachable
Do not self-define `reachable`, which can lead to misunderstanding.
Instead define `reachability` explictly.

Signed-off-by: Philip Oakley <philipoakley@iee.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-08-13 19:36:44 -07:00
Philip Oakley
39b4d85e5b doc: revisions: single vs multi-parent notation comparison
Signed-off-by: Philip Oakley <philipoakley@iee.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-08-13 19:36:44 -07:00
Philip Oakley
59841a3900 doc: revisions: extra clarification of <rev>^! notation effects
Signed-off-by: Philip Oakley <philipoakley@iee.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-08-13 19:36:44 -07:00
Philip Oakley
391a3c70c3 doc: revisions: give headings for the two and three dot notations
While there, also break out the other shorthand notations and
add a title for the revision range summary (which also appears
in git-rev-parse, so keep it mixed case).

We do not quote the notation within the headings as the asciidoc ->
docbook -> groff man viewer toolchain, particularly the docbook-groff
step, does not cope with two font changes, failing to return the heading
font to bold after the quotation of the notation.

Signed-off-by: Philip Oakley <philipoakley@iee.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-08-12 13:57:46 -07:00
Philip Oakley
b3d3ea0672 doc: revisions - name the left and right sides
The terms left and right side originate from the symmetric
difference. Name them there.

Signed-off-by: Philip Oakley <philipoakley@iee.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-20 15:15:16 -07:00
Matthieu Moy
661c3e9bc0 doc: typeset HEAD and variants as literal
This is an application of the newly added CodingGuidelines to HEAD and
variants like FETCH_HEAD. It was obtained with:

  perl -pi -e "s/'([A-Z_]*HEAD)'/\`\$1\`/g" *.txt

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-28 08:36:45 -07:00
Matthieu Moy
bcf9626a71 doc: typeset long command-line options as literal
Similarly to the previous commit, use backquotes instead of
forward-quotes, for long options.

This was obtained with:

  perl -pi -e "s/'(--[a-z][a-z=<>-]*)'/\`\$1\`/g" *.txt

and manual tweak to remove false positive in ascii-art (o'--o'--o' to
describe rewritten history).

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-28 08:36:45 -07:00
Junio C Hamano
fb795323ce Merge branch 'wp/sha1-name-negative-match'
A new "<branch>^{/!-<pattern>}" notation can be used to name a
commit that is reachable from <branch> that does not match the
given <pattern>.

* wp/sha1-name-negative-match:
  object name: introduce '^{/!-<negative pattern>}' notation
  test for '!' handling in rev-parse's named commits
2016-02-10 14:20:10 -08:00
Will Palmer
0769854f3d object name: introduce '^{/!-<negative pattern>}' notation
To name a commit, you can now use the :/!-<negative pattern> regex
style, and consequentially, say

    $ git rev-parse HEAD^{/!-foo}

and it will return the hash of the first commit reachable from HEAD,
whose commit message does not contain "foo". This is the opposite of the
existing <rev>^{/<pattern>} syntax.

The specific use-case this is intended for is to perform an operation,
excluding the most-recent commits containing a particular marker. For
example, if you tend to make "work in progress" commits, with messages
beginning with "WIP", you work, then it could be useful to diff against
"the most recent commit which was not a WIP commit". That sort of thing
now possible, via commands such as:

    $ git diff @^{/!-^WIP}

The leader '/!-', rather than simply '/!', to denote a negative match,
is chosen to leave room for additional modifiers in the future.

Signed-off-by: Will Palmer <wmpalmer@gmail.com>
Signed-off-by: Stephen P. Smith <ischis2@cox.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-02-01 13:40:37 -08:00
Matthew Kraai
c200deb829 Documentation: remove unnecessary backslashes
asciidoctor does not remove backslashes used to escape curly brackets from
the HTML output if the contents of the curly brackets are empty or contain
at least a <, -, or space.  asciidoc does not require the backslashes in
these cases, so just remove them.

Signed-off-by: Matthew Kraai <matt.kraai@abbott.com>
Reported-by: Philip Oakley <philipoakley@iee.org>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-01-20 16:15:14 -08:00
Jeff King
adfe5d0434 sha1_name: implement @{push} shorthand
In a triangular workflow, each branch may have two distinct
points of interest: the @{upstream} that you normally pull
from, and the destination that you normally push to. There
isn't a shorthand for the latter, but it's useful to have.

For instance, you may want to know which commits you haven't
pushed yet:

  git log @{push}..

Or as a more complicated example, imagine that you normally
pull changes from origin/master (which you set as your
@{upstream}), and push changes to your own personal fork
(e.g., as myfork/topic). You may push to your fork from
multiple machines, requiring you to integrate the changes
from the push destination, rather than upstream. With this
patch, you can just do:

  git rebase @{push}

rather than typing out the full name.

The heavy lifting is all done by branch_get_push; here we
just wire it up to the "@{push}" syntax.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-22 09:33:08 -07:00
W. Trevor King
670a7297c2 Documentation: mention config sources for @{upstream}
The earlier documentation made vague references to "is set to build
on".  Flesh that out with references to the config settings, so folks
can use git-config(1) to get more detail on what @{upstream} means.
For example, @{upstream} does not care about remote.pushdefault or
branch.<name>.pushremote.

Signed-off-by: W. Trevor King <wking@tremily.us>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-13 12:35:00 -07:00
Thomas Rast
75d6e552a8 Documentation: @{-N} can refer to a commit
The @{-N} syntax always referred to the N-th last thing checked out,
which can be either a branch or a commit (for detached HEAD cases).
However, the documentation only mentioned branches.

Edit in a "/commit" in the appropriate places.

Reported-by: Kevin <ikke@ikke.info>
Signed-off-by: Thomas Rast <tr@thomasrast.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-01-21 13:50:00 -08:00
Junio C Hamano
f406140baa Merge branch 'fc/at-head'
Instead of typing four capital letters "HEAD", you can say "@" now,
e.g. "git log @".

* fc/at-head:
  Add new @ shortcut for HEAD
  sha1-name: pass len argument to interpret_branch_name()
2013-09-20 12:38:10 -07:00
Junio C Hamano
638924fec2 Merge branch 'rh/peeling-tag-to-tag'
Make "foo^{tag}" to peel a tag to itself, i.e. no-op., and fail if
"foo" is not a tag.  "git rev-parse --verify v1.0^{tag}" would be a
more convenient way to say "test $(git cat-file -t v1.0) = tag".

* rh/peeling-tag-to-tag:
  peel_onion: do not assume length of x_type globals
  peel_onion(): add support for <rev>^{tag}
2013-09-20 12:27:18 -07:00
Felipe Contreras
9ba89f484e Add new @ shortcut for HEAD
Typing 'HEAD' is tedious, especially when we can use '@' instead.

The reason for choosing '@' is that it follows naturally from the
ref@op syntax (e.g. HEAD@{u}), except we have no ref, and no
operation, and when we don't have those, it makes sens to assume
'HEAD'.

So now we can use 'git show @~1', and all that goody goodness.

Until now '@' was a valid name, but it conflicts with this idea, so
let's make it invalid. Probably very few people, if any, used this name.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-09-12 14:39:34 -07:00
Richard Hansen
abdb54a1d2 revisions.txt: fix and clarify <rev>^{<type>}
If possible, <rev> will be dereferenced even if it is not a tag type
(e.g., commit dereferenced to a tree).

Signed-off-by: Richard Hansen <rhansen@bbn.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-09-04 15:03:59 -07:00
Richard Hansen
75aa26d34c peel_onion(): add support for <rev>^{tag}
Complete the <rev>^{<type>} family of object descriptors by having
<rev>^{tag} dereference <rev> until a tag object is found (or fail if
unable).

At first glance this may not seem very useful, as commits, trees, and
blobs cannot be peeled to a tag, and a tag would just peel to itself.
However, this can be used to ensure that <rev> names a tag object:

    $ git rev-parse --verify v1.8.4^{tag}
    04f013dc38d7512eadb915eba22efc414f18b869
    $ git rev-parse --verify master^{tag}
    error: master^{tag}: expected tag type, but the object dereferences to tree type
    fatal: Needed a single revision

Users can already ensure that <rev> is a tag object by checking the
output of 'git cat-file -t <rev>', but:
  * users may expect <rev>^{tag} to exist given that <rev>^{commit},
    <rev>^{tree}, and <rev>^{blob} all exist
  * this syntax is more convenient/natural in some circumstances

Signed-off-by: Richard Hansen <rhansen@bbn.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-09-03 13:09:17 -07:00
Junio C Hamano
2c2b6646c2 Revert "Add new @ shortcut for HEAD"
This reverts commit cdfd94837b, as it
does not just apply to "@" (and forms with modifiers like @{u}
applied to it), but also affects e.g. "refs/heads/@/foo", which it
shouldn't.

The basic idea of giving a short-hand might be good, and the topic
can be retried later, but let's revert to avoid affecting existing
use cases for now for the upcoming release.
2013-08-14 15:04:24 -07:00
Felipe Contreras
cdfd94837b Add new @ shortcut for HEAD
Typing 'HEAD' is tedious, especially when we can use '@' instead.

The reason for choosing '@' is that it follows naturally from the
ref@op syntax (e.g. HEAD@{u}), except we have no ref, and no
operation, and when we don't have those, it makes sens to assume
'HEAD'.

So now we can use 'git show @~1', and all that goody goodness.

Until now '@' was a valid name, but it conflicts with this idea, so
let's make it invalid. Probably very few people, if any, used this name.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-08 12:13:12 -07:00