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The list of Don'ts for test writing has grown large such that it is hard
to see at a glance which section an item is in. In other words, if I
ignore a little bit of surrounding context, the "don'ts" look like
"do's."
To make the list more readable, prefix "Don't" in front of every first
sentence in the items.
Also, the "Keep in mind" list is out of place and awkward, because it
was a very short "list" beneath two very long ones, and it seemed easy
to miss under the list of "don'ts," and it only had one item. So move
this item to the list of "do's" and phrase as "Remember..."
Signed-off-by: Matthew DeVore <matvore@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Doc updates.
* fe/doc-updates:
git-describe.1: clarify that "human readable" is also git-readable
git-column.1: clarify initial description, provide examples
git-archimport.1: specify what kind of Arch we're talking about
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The caption uses the term "human readable", but the DESCRIPTION did
not explain this in context.
Signed-off-by: Frederick Eaton <frederik@ofb.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When I read this man page I couldn't figure out what kind of input it
was referring to, or how input was being put into columns, or where I
should look for the syntax of the --mode option.
Signed-off-by: Frederick Eaton <frederik@ofb.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Is it a CPU architecture? Is it Arch Linux? If you search for "arch
repository", nothing relevant comes up. Let's call it GNU Arch so
people can find it with search engines.
Signed-off-by: Frederick Eaton <frederik@ofb.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The mailmap file update.
* jn/mailmap-update:
mailmap: consistently normalize brian m. carlson's name
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v2.18.0-rc0~70^2 (mailmap: update brian m. carlson's email address,
2018-05-08) changed the mailmap to map
sandals@crustytoothpaste.ath.cx
-> brian m. carlson <sandals@crustytoothpaste.net>
instead of
sandals@crustytoothpaste.net
-> brian m. carlson <sandals@crustytoothpaste.ath.cx>
That means the mapping
Brian M. Carlson <sandals@crustytoothpaste.ath.cx>
-> brian m. carlson <sandals@crustytoothpaste.net>
is redundant, so we can remove it. More importantly, it means that
the identity "Brian M. Carlson <sandals@crustytoothpaste.net>" used in
some commits is not normalized any more. Add a mapping for it.
Noticed while updating Debian's Git packaging, which uses "git
shortlog --no-merges" to produce a list of changes in each version,
grouped by author's (normalized) name.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Test update.
* tg/t5551-with-curl-7.61.1:
t5551: compare sorted cookies files
t5551: move setup code inside test_expect blocks
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In t5551 we check that we save cookies correctly to a file when
http.cookiefile and http.savecookies are set. To do so we create an
expect file that expects the cookies in a certain order.
However after e2ef8d6fa ("cookies: support creation-time attribute for
cookies", 2018-08-28) in curl.git (released in curl 7.61.1) that order
changed.
We document the file format as "Netscape/Mozilla cookie file
format (see curl(1))", so any format produced by libcurl should be
fine here. Sort the files, to be agnostic to the order of the
cookies, and make the test pass with both curl versions > 7.61.1 and
earlier curl versions.
Reported-by: Todd Zullinger <tmz@pobox.com>
Helped-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Move setup code inside test_expect blocks, to catch unexpected
failures in the setup steps, and bring the test scripts in line with
our modern test style.
Suggested-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Code clean-up.
* en/merge-cleanup:
merge-recursive: rename merge_file_1() and merge_content()
merge-recursive: remove final remaining caller of merge_file_one()
merge-recursive: avoid wrapper function when unnecessary and wasteful
merge-recursive: set paths correctly when three-way merging content
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Summary:
merge_file_1() -> merge_mode_and_contents()
merge_content() -> handle_content_merge()
merge_file_1() is a very unhelpful name. Rename it to
merge_mode_and_contents() to reflect what it does.
merge_content() calls merge_mode_and_contents() to do the main part of
its work, but most of this function was about higher level stuff, e.g.
printing out conflict messages, updating skip_worktree bits, checking
for ability to avoid updating the working tree or for D/F conflicts
being in the way, etc. Since there are several handle_*() functions for
similar levels of checking and handling in merge-recursive.c (e.g.
handle_change_delete(), handle_rename_rename_2to1()), let's rename this
function to handle_content_merge().
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The function names merge_file_one() and merge_file_1() aren't
particularly intuitive function names, especially since there is no
associated merge_file() function that these are related to. The
previous commit showed that merge_file_one() was prone to be called when
merge_file_1() should be, and since it is just a thin wrapper around
merge_file_1() anyway and only has one caller left, let's just remove
merge_file_one() entirely.
(It also turns out that the one remaining caller of merge_file_one()
has very broken code that needs to be completely rewritten, but that's
the subject of a future patch series; for now, we're just translating
it into a merge_file_1() call.)
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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merge_file_one() is a convenience function taking a bunch of oids and
modes, combining each pair into a diff_filespec, and then calling
merge_file_1(). When we already start with diff_filespec's, we can
just call merge_file_1() directly instead of splitting out the oids
and modes for the wrapper to recombine into what we already had.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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merge_3way() has code to mark different sides of the conflict with info
about where the content comes from. If the names of the files involved
match, it simply uses the branch name. If the names of the files do not
match, it uses branchname:filename. Unfortunately, merge_content()
previously always called it with one.path = a.path = b.path. Granted,
it didn't have other path information available to it for years, but
that was corrected by passing rename_conflict_info in commit
3c217c077a86 ("merge-recursive: Provide more info in conflict markers
with file renames", 2011-08-11). In that commit, instead of just fixing
the bug with the pathnames, it created fake branch names incorporating
both the branch name and file name.
This "fake branch" workaround was extended further when I pulled that
logic out into a special function in commit dac4741554e7
("merge-recursive: Create function for merging with branchname:file
markers", 2011-08-11), and a number of other sites outside of
merge_content() have been added which call into that. However, this
Rube-Goldberg-esque setup is not merely duplicate code and unnecessary
work, it also risked having other callsites invoke it in a way that
would result in markers of the form branchname:filename:filename (i.e.
with the filename repeated).
Fix this whole mess by:
- setting one.path, a.path, and b.path appropriately
- calling merge_file_1() directly
- deleting the merge_file_special_markers() workaround wrapper
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Header files clean-up.
* rj/header-check:
delta-islands.h: add missing forward declarations (hdr-check)
midx.h: add missing forward declarations (hdr-check)
refs/refs-internal.h: add missing declarations (hdr-check)
refs/packed-backend.h: add missing declaration (hdr-check)
refs/ref-cache.h: add missing declarations (hdr-check)
ewah/ewok_rlw.h: add missing include (hdr-check)
json-writer.h: add missing include (hdr-check)
Makefile: add a hdr-check target
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Signed-off-by: Ramsay Jones <ramsay@ramsayjones.plus.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Ramsay Jones <ramsay@ramsayjones.plus.com>
Reviewed-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Ramsay Jones <ramsay@ramsayjones.plus.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Ramsay Jones <ramsay@ramsayjones.plus.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Ramsay Jones <ramsay@ramsayjones.plus.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Ramsay Jones <ramsay@ramsayjones.plus.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Ramsay Jones <ramsay@ramsayjones.plus.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Commit ef3ca95475 ("Add missing includes and forward declarations",
2018-08-15) resulted from the author employing a manual method to
create a C file consisting of a pair of pre-processor #include
lines (for 'git-compat-util.h' and a given toplevel header), and
fixing any resulting compiler errors or warnings.
Add a Makefile target to automate this process. This implementation
relies on the '-include' and '-xc' arguments to the 'gcc' and 'clang'
compilers, which allows us to effectively create the required C
compilation unit on-the-fly. This limits the portability of this
solution to those systems which have such a compiler.
The new 'hdr-check' target can be used to check most header files in
the project (for various reasons, the 'compat' and 'xdiff' directories
are not included). Also, note that individual header files can be
checked directly using the '.hco' extension (read: Hdr-Check Object)
like so:
$ make config.hco
HDR config.h
$
Signed-off-by: Ramsay Jones <ramsay@ramsayjones.plus.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Doc update.
* ma/config-doc-update:
git-config.txt: fix 'see: above' note
Doc: use `--type=bool` instead of `--bool`
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Rather than saying "(see: above)", drop the colon. Also drop the comma
before this note.
Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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After fb0dc3bac1 (builtin/config.c: support `--type=<type>` as preferred
alias for `--<type>`, 2018-04-18) we have a more modern way of spelling
`--bool`.
Update all instances except those that explicitly document the
"historical options" in git-config.txt. The other old-style
type-specifiers already seem to be gone except for in that list of
historical options.
Tweak the grammar a little in config.txt while we are there.
Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Fix interactions between two recent topics.
* jk/delta-islands-with-bitmap-reuse-delta-fix:
pack-objects: handle island check for "external" delta base
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Two recent topics, jk/pack-delta-reuse-with-bitmap and
cc/delta-islands, can have a funny interaction. When
checking if we can reuse an on-disk delta, the first topic
allows base_entry to be NULL when we find an object that's
not in the packing list. But the latter topic introduces a
call to in_same_island(), which needs to look at
base_entry->idx.oid. When these two features are used
together, we might try to dereference a NULL base_entry.
In practice, this doesn't really happen. We'd generally only
use delta islands when packing to disk, since the whole
point is to optimize the pack for serving fetches later. And
the new delta-reuse code relies on having used reachability
bitmaps to determine the set of objects, which we would
typically only do when serving an actual fetch.
However, it is technically possible to combine these
features. And even without doing so, building with
"SANITIZE=address,undefined" will cause t5310.46 to
complain. Even though that test does not have delta islands
enabled, we still take the address of the NULL entry to pass
to in_same_island(). That function then promptly returns
without dereferencing the value when it sees that islands
are not enabled, but it's enough to trigger a sanitizer
error.
The solution is straight-forward: when both features are
used together, we should pass the oid of the found base to
in_same_island().
This is tricky to do inside a single "if" statement. And
after the merge in f3504ea3dd (Merge branch
'cc/delta-islands', 2018-09-17), that "if" condition is
already getting pretty unwieldy. So this patch moves the
logic into a helper function, where we can easily use
multiple return paths. The result is a bit longer, but the
logic should be much easier to follow.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Fix for typo in a sample code in comment.
* tq/refs-internal-comment-fix:
refs: docstring typo
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Signed-off-by: Tao Qingyun <taoqy@ls-a.me>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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An alias that expands to another alias has so far been forbidden,
but now it is allowed to create such an alias.
* ts/alias-of-alias:
t0014: introduce an alias testing suite
alias: show the call history when an alias is looping
alias: add support for aliases of an alias
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Introduce a testing suite that is dedicated to aliases.
For now, check only if nested aliases work and if looping
aliases are detected successfully.
The looping aliases check for mixed execution is there but
disabled, because it is blocking the test suite for a full
minute. As soon as there is a solution for loops using
external commands, it should be enabled.
Signed-off-by: Tim Schumacher <timschumi@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Just printing the command that the user entered is not particularly
helpful when trying to find the alias that causes the loop.
Print the history of substituted commands to help the user find the
offending alias. Mark the entrypoint of the loop with "<==" and the
last command (which looped back to the entrypoint) with "==>".
Signed-off-by: Tim Schumacher <timschumi@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Aliases can only contain non-alias git commands and their arguments,
not other user-defined aliases. Resolving further (nested) aliases
is prevented by breaking the loop after the first alias was
processed. Git then fails with a command-not-found error.
Allow resolving nested aliases by not breaking the loop in
run_argv() after the first alias was processed. Instead, continue
the loop until `handle_alias()` fails, which means that there are no
further aliases that can be processed. Prevent looping aliases by
storing substituted commands in `cmd_list` and checking if a command
has been substituted previously.
While we're at it, fix a styling issue just below the added code.
Signed-off-by: Tim Schumacher <timschumi@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The recently introduced commit-graph auxiliary data is incompatible
with mechanisms such as replace & grafts that "breaks" immutable
nature of the object reference relationship. Disable optimizations
based on its use (and updating existing commit-graph) when these
incompatible features are in use in the repository.
* ds/commit-graph-with-grafts:
commit-graph: close_commit_graph before shallow walk
commit-graph: not compatible with uninitialized repo
commit-graph: not compatible with grafts
commit-graph: not compatible with replace objects
test-repository: properly init repo
commit-graph: update design document
refs.c: upgrade for_each_replace_ref to be a each_repo_ref_fn callback
refs.c: migrate internal ref iteration to pass thru repository argument
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Call close_commit_graph() when about to start a rev-list walk that
includes shallow commits. This is necessary in code paths that "fake"
shallow commits for the sake of fetch. Specifically, test 351 in
t5500-fetch-pack.sh runs
git fetch --shallow-exclude one origin
with a file-based transfer. When the "remote" has a commit-graph, we do
not prevent the commit-graph from being loaded, but then the commits are
intended to be dynamically transferred into shallow commits during
get_shallow_commits_by_rev_list(). By closing the commit-graph before
this call, we prevent this interaction.
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Augment commit_graph_compatible(r) to return false when the given
repository r has commit grafts or is a shallow clone. Test that in these
situations we ignore existing commit-graph files and we do not write new
commit-graph files.
Helped-by: Jakub Narebski <jnareb@gmail.com>
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Create new method commit_graph_compatible(r) to check if a given
repository r is compatible with the commit-graph feature. Fill the
method with a check to see if replace-objects exist. Test this
interaction succeeds, including ignoring an existing commit-graph and
failing to write a new commit-graph. However, we do ensure that
we write a new commit-graph by setting read_replace_refs to 0, thereby
ignoring the replace refs.
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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As it exists right now, the commit-graph feature may provide
inconsistent results when combined with commit grafts, replace objects,
and shallow clones. Update the design document to discuss why these
interactions are difficult to reconcile and how we will avoid errors by
preventing updates to and reads from the commit-graph file when these
other features exist.
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In 60ce76d3581 (refs: add repository argument to for_each_replace_ref,
2018-04-11) and 0d296c57aec (refs: allow for_each_replace_ref to handle
arbitrary repositories, 2018-04-11), for_each_replace_ref learned how
to iterate over refs by a given arbitrary repository.
New attempts in the object store conversion have shown that it is useful
to have the repository handle available that the refs iteration is
currently iterating over.
To achieve this goal we will need to add a repository argument to
each_ref_fn in refs.h. However as many callers rely on the signature
such a patch would be too large.
So convert the internals of the ref subsystem first to pass through a
repository argument without exposing the change to the user. Assume
the_repository for the passed through repository, although it is not
used anywhere yet.
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Generation of (experimental) commit-graph files have so far been
fairly silent, even though it takes noticeable amount of time in a
meaningfully large repository. The users will now see progress
output.
* ab/commit-graph-progress:
gc: fix regression in 7b0f229222 impacting --quiet
commit-graph verify: add progress output
commit-graph write: add progress output
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Fix a regression in my recent 7b0f229222 ("commit-graph write: add
progress output", 2018-09-17). The newly added progress output for
"commit-graph write" didn't check the --quiet option.
Do so, and add a test asserting that this works as expected. Since the
TTY prequisite isn't available everywhere let's add a version of this
that both requires and doesn't require that. This test might be overly
specific and will break if new progress output is added, but I think
it'll serve as a good reminder to test the undertested progress
mode(s).
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Helped-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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For the reasons explained in the "commit-graph write: add progress
output" commit leading up to this one, emit progress on "commit-graph
verify". Since e0fd51e1d7 ("fsck: verify commit-graph", 2018-06-27)
"git fsck" has called this command if core.commitGraph=true, but
there's been no progress output to indicate that anything was
different. Now there is (on my tiny dotfiles.git repository):
$ git -c core.commitGraph=true -C ~/ fsck
Checking object directories: 100% (256/256), done.
Checking objects: 100% (2821/2821), done.
dangling blob 5b8bbdb9b788ed90459f505b0934619c17cc605b
Verifying commits in commit graph: 100% (867/867), done.
And on a larger repository, such as the 2015-04-03-1M-git.git test
repository:
$ time git -c core.commitGraph=true -C ~/g/2015-04-03-1M-git/ commit-graph verify
Verifying commits in commit graph: 100% (1000447/1000447), done.
real 0m7.813s
[...]
Since the "commit-graph verify" subcommand is never called from "git
gc", we don't have to worry about passing some some "report_progress"
progress variable around for this codepath.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Before this change the "commit-graph write" command didn't report any
progress. On my machine this command takes more than 10 seconds to
write the graph for linux.git, and around 1m30s on the
2015-04-03-1M-git.git[1] test repository (a test case for a large
monorepository).
Furthermore, since the gc.writeCommitGraph setting was added in
d5d5d7b641 ("gc: automatically write commit-graph files", 2018-06-27),
there was no indication at all from a "git gc" run that anything was
different. This why one of the progress bars being added here uses
start_progress() instead of start_delayed_progress(), so that it's
guaranteed to be seen. E.g. on my tiny 867 commit dotfiles.git
repository:
$ git -c gc.writeCommitGraph=true gc
Enumerating objects: 2821, done.
[...]
Computing commit graph generation numbers: 100% (867/867), done.
On larger repositories, such as linux.git the delayed progress bar(s)
will kick in, and we'll show what's going on instead of, as was
previously happening, printing nothing while we write the graph:
$ git -c gc.writeCommitGraph=true gc
[...]
Annotating commits in commit graph: 1565573, done.
Computing commit graph generation numbers: 100% (782484/782484), done.
Note that here we don't show "Finding commits for commit graph", this
is because under "git gc" we seed the search with the commit
references in the repository, and that set is too small to show any
progress, but would e.g. on a smaller repo such as git.git with
--stdin-commits:
$ git rev-list --all | git -c gc.writeCommitGraph=true write --stdin-commits
Finding commits for commit graph: 100% (162576/162576), done.
Computing commit graph generation numbers: 100% (162576/162576), done.
With --stdin-packs we don't show any estimation of how much is left to
do. This is because we might be processing more than one pack. We
could be less lazy here and show progress, either by detecting that
we're only processing one pack, or by first looping over the packs to
discover how many commits they have. I don't see the point in doing
that work. So instead we get (on 2015-04-03-1M-git.git):
$ echo pack-<HASH>.idx | git -c gc.writeCommitGraph=true --exec-path=$PWD commit-graph write --stdin-packs
Finding commits for commit graph: 13064614, done.
Annotating commits in commit graph: 3001341, done.
Computing commit graph generation numbers: 100% (1000447/1000447), done.
No GC mode uses --stdin-packs. It's what they use at Microsoft to
manually compute the generation numbers for their collection of large
packs which are never coalesced.
The reason we need a "report_progress" variable passed down from "git
gc" is so that we don't report this output when we're running in the
process "git gc --auto" detaches from the terminal.
Since we write the commit graph from the "git gc" process itself (as
opposed to what we do with say the "git repack" phase), we'd end up
writing the output to .git/gc.log and reporting it to the user next
time as part of the "The last gc run reported the following[...]"
error, see 329e6e8794 ("gc: save log from daemonized gc --auto and
print it next time", 2015-09-19).
So we must keep track of whether or not we're running in that
demonized mode, and if so print no progress.
See [2] and subsequent replies for a discussion of an approach not
taken in compute_generation_numbers(). I.e. we're saying "Computing
commit graph generation numbers", even though on an established
history we're mostly skipping over all the work we did in the
past. This is similar to the white lie we tell in the "Writing
objects" phase (not all are objects being written).
Always showing progress is considered more important than
accuracy. I.e. on a repository like 2015-04-03-1M-git.git we'd hang
for 6 seconds with no output on the second "git gc" if no changes were
made to any objects in the interim if we'd take the approach in [2].
1. https://github.com/avar/2015-04-03-1M-git
2. <c6960252-c095-fb2b-e0bc-b1e6bb261614@gmail.com>
(https://public-inbox.org/git/c6960252-c095-fb2b-e0bc-b1e6bb261614@gmail.com/)
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@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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Update fsck.skipList implementation and documentation.
* ab/fsck-skiplist:
fsck: support comments & empty lines in skipList
fsck: use oidset instead of oid_array for skipList
fsck: use strbuf_getline() to read skiplist file
fsck: add a performance test for skipList
fsck: add a performance test
fsck: document that skipList input must be unabbreviated
fsck: document and test commented & empty line skipList input
fsck: document and test sorted skipList input
fsck tests: add a test for no skipList input
fsck tests: setup of bogus commit object
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