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Setting and clearing of the SKIP_WORKTREE bit is not only done when
users run 'sparse-checkout'; other commands such as 'checkout' also run
through unpack_trees() which has logic for handling this special bit.
As such, we need to consider how they handle special cases. A couple
comparison points should help explain the rationale for changing how
unpack_trees() handles these bits:
Ignoring sparse checkouts for a moment, if you are switching
branches and have dirty changes, it is only considered an error that
will prevent the branch switching from being successful if the dirty
file happens to be one of the paths with different contents.
SKIP_WORKTREE has always been considered advisory; for example, if
rebase or merge need or even want to materialize a path as part of
their work, they have always been allowed to do so regardless of the
SKIP_WORKTREE setting. This has been used for unmerged paths, but
it was often used for paths it wasn't needed just because it made
the code simpler. It was a best-effort consideration, and when it
materialized paths contrary to the SKIP_WORKTREE setting, it was
never required to even print a warning message.
In the past if you trying to run e.g. 'git checkout' and:
1) you had a path that was materialized and had some dirty changes
2) the path was listed in $GITDIR/info/sparse-checkout
3) this path did not different between the current and target branches
then despite the comparison points above, the inability to set
SKIP_WORKTREE was treated as a *hard* error that would abort the
checkout operation. This is completely inconsistent with how
SKIP_WORKTREE is handled elsewhere, and rather annoying for users as
leaving the paths materialized in the working copy (with a simple
warning) should present no problem at all.
Downgrade any errors from inability to toggle the SKIP_WORKTREE bit to a
warning and allow the operations to continue.
Reviewed-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When sparse-checkout runs to update the list of sparsity patterns, it
gives warnings if it can't remove paths from the working tree because
those files have dirty changes. Add a similar warning for unmerged
paths as well.
Reviewed-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The messages for problems with sparse paths are phrased as errors that
cause the operation to abort, even though we are not making the
operation abort. Reword the messages to make sense in their new
context.
Reviewed-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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display_error_msgs() is never called to show messages of both ERROR_*
and WARNING_* types at the same time; it is instead called multiple
times, separately for each type. Since we want to display these types
differently, make two slightly different versions of this function.
A subsequent commit will further modify unpack_trees() and how it calls
the new display_warning_msgs().
Reviewed-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We want to treat issues with setting the SKIP_WORKTREE bit as a warning
rather than an error; rename the enum values to reflect this intent as
a simple step towards that goal.
Reviewed-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A minor change, but we want to convert the sparse messages to warnings
and this allows us to group warnings and errors.
Reviewed-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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setup_unpack_trees_porcelain() provides much improved error/warning
messages; instead of a message that assumes that there is only one path
with a given problem despite being used by code that intentionally is
grouping and showing errors together, it uses a message designed to be
used with groups of paths. For example, this transforms
error: Entry ' folder1/a
folder2/a
' not uptodate. Cannot update sparse checkout.
into
error: Cannot update sparse checkout: the following entries are not up to date:
folder1/a
folder2/a
In the past the suboptimal messages were never actually triggered
because we would error out if the working directory wasn't clean before
we even called unpack_trees(). The previous commit changed that,
though, so let's use the better error messages.
Reviewed-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Remove the equivalent of 'git read-tree -mu HEAD' in the sparse-checkout
codepaths for setting the SKIP_WORKTREE bits and instead use the new
update_sparsity() function.
Note that when an issue is hit, the error message splits 'error' and
'Cannot update sparse checkout' on separate lines. For now, we use two
greps to find both pieces of the error message but subsequent commits
will clean up the messages reported to the user.
Reviewed-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Previously, the only way to update the SKIP_WORKTREE bits for various
paths was invoking `git read-tree -mu HEAD` or calling the same code
that this codepath invoked. This however had a number of problems if
the index or working directory were not clean. First, let's consider
the case:
Flipping SKIP_WORKTREE -> !SKIP_WORKTREE (materializing files)
If the working tree was clean this was fine, but if there were files or
directories or symlinks or whatever already present at the given path
then the operation would abort with an error. Let's label this case
for later discussion:
A) There is an untracked path in the way
Now let's consider the opposite case:
Flipping !SKIP_WORKTREE -> SKIP_WORKTREE (removing files)
If the index and working tree was clean this was fine, but if there were
any unclean paths we would run into problems. There are three different
cases to consider:
B) The path is unmerged
C) The path has unstaged changes
D) The path has staged changes (differs from HEAD)
If any path fell into case B or C, then the whole operation would be
aborted with an error. With sparse-checkout, the whole operation would
be aborted for case D as well, but for its predecessor of using `git
read-tree -mu HEAD` directly, any paths that fell into case D would be
removed from the working copy and the index entry for that path would be
reset to match HEAD -- which looks and feels like data loss to users
(only a few are even aware to ask whether it can be recovered, and even
then it requires walking through loose objects trying to match up the
right ones).
Refusing to remove files that have unsaved user changes is good, but
refusing to work on any other paths is very problematic for users. If
the user is in the middle of a rebase or has made modifications to files
that bring in more dependencies, then for their build to work they need
to update the sparse paths. This logic has been preventing them from
doing so. Sometimes in response, the user will stage the files and
re-try, to no avail with sparse-checkout or to the horror of losing
their changes if they are using its predecessor of `git read-tree -mu
HEAD`.
Add a new update_sparsity() function which will not error out in any of
these cases but behaves as follows for the special cases:
A) Leave the file in the working copy alone, clear the SKIP_WORKTREE
bit, and print a warning (thus leaving the path in a state where
status will report the file as modified, which seems logical).
B) Do NOT mark this path as SKIP_WORKTREE, and leave it as unmerged.
C) Do NOT mark this path as SKIP_WORKTREE and print a warning about
the dirty path.
D) Mark the path as SKIP_WORKTREE, but do not revert the version
stored in the index to match HEAD; leave the contents alone.
I tried a different behavior for A (leave the SKIP_WORKTREE bit set),
but found it very surprising and counter-intuitive (e.g. the user sees
it is present along with all the other files in that directory, tries to
stage it, but git add ignores it since the SKIP_WORKTREE bit is set). A
& C seem like optimal behavior to me. B may be as well, though I wonder
if printing a warning would be an improvement. Some might be slightly
surprised by D at first, but given that it does the right thing with
`git commit` and even `git commit -a` (`git add` ignores entries that
are marked SKIP_WORKTREE and thus doesn't delete them, and `commit -a`
is similar), it seems logical to me.
Reviewed-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Create a populate_from_existing_patterns() function for reading the
path_patterns from $GIT_DIR/info/sparse-checkout so that we can re-use
it elsewhere.
Reviewed-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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If a path is dirty, removing from the working tree risks losing data.
As such, we want to make sure any such path is not marked with
SKIP_WORKTREE. While the current callers of this code detect this case
and re-populate with a previous set of sparsity patterns, we want to
allow some paths to be marked with SKIP_WORKTREE while others are left
unmarked without it being considered an error. The reason this
shouldn't be considered an error is that SKIP_WORKTREE has always been
an advisory-only setting; merge and rebase for example were free to
materialize paths and clear the SKIP_WORKTREE bit in order to accomplish
their work even though they kept the SKIP_WORKTREE bit set for other
paths. Leaving dirty working files in the working tree is thus a
natural extension of what we have already been doing.
Reviewed-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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check_updates() previously assumed it was working on o->result. We want
to use this function in combination with a different index_state, so
take the intended index_state as a parameter.
Reviewed-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Reviewed-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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commit e091228e17 ("sparse-checkout: update working directory
in-process", 2019-11-21) allowed passing a pre-defined set of patterns
to unpack_trees(). However, if o->pl was NULL, it would still read the
existing patterns and use those. If those patterns were read into a
data structure that was allocated, naturally they needed to be free'd.
However, despite the same function being responsible for knowing about
both the allocation and the free'ing, the logic for tracking whether to
free the pattern_list was hoisted to an outer function with an
additional flag in unpack_trees_options. Put the logic back in the
relevant function and discard the now unnecessary flag.
Reviewed-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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verify_absent_sparse() was introduced in commit 08402b0409
("merge-recursive: distinguish "removed" and "overwritten" messages",
2010-08-11), and has always had exactly one caller which always passes
error_type == ERROR_WOULD_LOSE_UNTRACKED_OVERWRITTEN. This function
then checks whether error_type is this value, and if so, sets it instead
to ERROR_WOULD_LOSE_ORPHANED_OVERWRITTEN. It has been nearly a decade
and no other caller has been created, and no other value has ever been
passed, so just pass the expected value to begin with.
Reviewed-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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commit 08402b0409 ("merge-recursive: distinguish "removed" and
"overwritten" messages", 2010-08-11) split
ERROR_WOULD_LOSE_UNTRACKED
into both
ERROR_WOULD_LOSE_UNTRACKED_OVERWRITTEN
ERROR_WOULD_LOSE_UNTRACKED_REMOVED
and also split
ERROR_WOULD_LOSE_ORPHANED
into both
ERROR_WOULD_LOSE_ORPHANED_OVERWRITTEN
ERROR_WOULD_LOSE_ORPHANED_REMOVED
However, despite the split only three of these four types were used.
ERROR_WOULD_LOSE_ORPHANED_REMOVED was not put into use when it was
introduced and nothing else has used it in the intervening decade
either. Remove it.
Reviewed-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Reviewed-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Test fix.
* en/rebase-backend:
t3419: prevent failure when run with EXPENSIVE
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l10n-2.26.0-rnd2.1
* tag 'l10n-2.26.0-rnd2.1' of https://github.com/git-l10n/git-po: (28 commits)
l10n: tr.po: change file mode to 644
l10n: de.po: Update German translation for Git 2.26.0
l10n: de.po: add missing space
l10n: tr: Fix a couple of ambiguities
l10n: Update Catalan translation
l10n: sv.po: Update Swedish translation (4839t0f0u)
l10n: zh_CN: Revise v2.26.0 translation
l10n: zh_CN: for git v2.26.0 l10n round 1 and 2
l10n: vi(4839t): Updated Vietnamese translation for v2.26.0
l10n: vi: fix translation + grammar
l10n: zh_TW.po: v2.26.0 round 2 (0 untranslated)
l10n: zh_TW.po: v2.26.0 round 1 (11 untranslated)
l10n: it.po: update the Italian translation for Git 2.26.0 round 2
l10n: es: 2.26.0 round#2
l10n: bg.po: Updated Bulgarian translation (4839t)
l10n: tr: v2.26.0 round 2
l10n: fr : v2.26.0 rnd 2
l10n: git.pot: v2.26.0 round 2 (7 new, 2 removed)
l10n: tr: Add glossary for Turkish translations
l10n: sv.po: Update Swedish translation (4835t0f0u)
...
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Signed-off-by: Jiang Xin <worldhello.net@gmail.com>
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This test runs a function which itself runs several assertions. The
last of these assertions cleans up the .git/rebase-apply directory,
since when run with EXPENSIVE set, the function is invoked a second time
to run the same tests with a larger data set.
However, as of 2ac0d6273f ("rebase: change the default backend from "am"
to "merge"", 2020-02-15), the default backend of rebase has changed, and
cleaning up the rebase-apply directory has no effect: it no longer
exists, since we're using rebase-merge instead.
Since we don't really care which rebase backend is in use, let's just
use the command "git rebase --quit", which will do the right thing
regardless.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Matthias Rüster <matthias.ruester@gmail.com>
Reviewed-by: Ralf Thielow <ralf.thielow@gmail.com>
Reviewed-by: Phillip Szelat <phillip.szelat@gmail.com>
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Signed-off-by: Ralf Thielow <ralf.thielow@gmail.com>
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* 'master' of https://github.com/prati0100/git-gui:
git-gui: create a new namespace for chord script evaluation
git-gui: reduce Tcl version requirement from 8.6 to 8.5
git-gui--askpass: coerce answers to UTF-8 on Windows
git-gui: fix error popup when doing blame -> "Show History Context"
git-gui: add missing close bracket
git-gui: update German translation
git-gui: extend translation glossary template with more terms
git-gui: update pot template and German translation to current source code
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Signed-off-by: Emir Sarı <bitigchi@me.com>
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Reduce the Tcl version requirement to 8.5 to allow git-gui to run on
MacOS distributions like High Sierra. While here, fix a potential
variable name collision.
* py/remove-tcloo:
git-gui: create a new namespace for chord script evaluation
git-gui: reduce Tcl version requirement from 8.6 to 8.5
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Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Jordi Mas <jmas@softcatala.org>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Now that Unicode 13.0 has been announced[0], update the character
width tables to the new version.
[0] https://home.unicode.org/announcing-the-unicode-standard-version-13-0/
Signed-off-by: Beat Bolli <dev+git@drbeat.li>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Updates to the CI settings.
* js/ci-windows-update:
Azure Pipeline: switch to the latest agent pools
ci: prevent `perforce` from being quarantined
t/lib-httpd: avoid using macOS' sed
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Code style cleanup.
* jk/run-command-formatfix:
run-command.h: fix mis-indented struct member
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Docfix.
* jk/doc-credential-helper:
doc: move credential helper info into gitcredentials(7)
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Dev support.
* js/mingw-open-in-gdb:
mingw: add a helper function to attach GDB to the current process
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Test updates.
* js/test-unc-fetch:
t5580: test cloning without file://, test fetching via UNC paths
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Testfix.
* js/test-write-junit-xml-fix:
tests: fix --write-junit-xml with subshells
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Code simplification.
* en/simplify-check-updates-in-unpack-trees:
unpack-trees: exit check_updates() early if updates are not wanted
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Both "git ls-remote -h" and "git grep -h" give short usage help,
like any other Git subcommand, but it is not unreasonable to expect
that the former would behave the same as "git ls-remote --head"
(there is no other sensible behaviour for the latter). The
documentation has been updated in an attempt to clarify this.
* jc/doc-single-h-is-for-help:
Documentation: clarify that `-h` alone stands for `help`
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"git show" and others gave an object name in raw format in its
error output, which has been corrected to give it in hex.
* hd/show-one-mergetag-fix:
show_one_mergetag: print non-parent in hex form.
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MinGW's poll() emulation has been improved.
* am/mingw-poll-fix:
mingw: workaround for hangs when sending STDIN
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"git merge signed-tag" while lacking the public key started to say
"No signature", which was utterly wrong. This regression has been
reverted.
* hi/gpg-use-check-signature:
Revert "gpg-interface: prefer check_signature() for GPG verification"
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Fix for a bug revealed by a recent change to make the protocol v2
the default.
* ds/partial-clone-fixes:
partial-clone: avoid fetching when looking for objects
partial-clone: demonstrate bugs in partial fetch
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The merge-recursive machinery failed to refresh the cache entry for
a merge result in a couple of places, resulting in an unnecessary
merge failure, which has been fixed.
* en/t3433-rebase-stat-dirty-failure:
merge-recursive: fix the refresh logic in update_file_flags
t3433: new rebase testcase documenting a stat-dirty-like failure
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"git check-ignore" did not work when the given path is explicitly
marked as not ignored with a negative entry in the .gitignore file.
* en/check-ignore:
check-ignore: fix documentation and implementation to match
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Doc markup fix.
* jk/push-option-doc-markup-fix:
doc/config/push: use longer "--" line for preformatted example
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Update to doc-diff.
* jk/doc-diff-parallel:
doc-diff: use single-colon rule in rendering Makefile
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The code to automatically shrink the fan-out in the notes tree had
an off-by-one bug, which has been killed.
* jh/notes-fanout-fix:
notes.c: fix off-by-one error when decreasing notes fanout
t3305: check notes fanout more carefully and robustly
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The index-pack code now diagnoses a bad input packstream that
records the same object twice when it is used as delta base; the
code used to declare a software bug when encountering such an
input, but it is an input error.
* jk/index-pack-dupfix:
index-pack: downgrade twice-resolved REF_DELTA to die()
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Elijah Newren
Junio C Hamano
Jiang Xin
brian m. carlson
Matthias Rüster
Ralf Thielow
Emir Sarı
Pratyush Yadav
Jordi Mas
Beat Bolli