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2020-09-17remote: don't show success message when set-head failsChristian Schlack1-1/+1
Suppress the message 'origin/HEAD set to master' in case of an error. $ git remote set-head origin -a error: Not a valid ref: refs/remotes/origin/master origin/HEAD set to master Signed-off-by: Christian Schlack <christian@backhub.co> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-17packfile: actually set approximate_object_count_validJeff King2-0/+5
The approximate_object_count() function tries to compute the count only once per process. But ever since it was introduced in 8e3f52d778 (find_unique_abbrev: move logic out of get_short_sha1(), 2016-10-03), we failed to actually set the "valid" flag, meaning we'd compute it fresh on every call. This turns out not to be _too_ bad, because we're only iterating through the packed_git list, and not making any system calls. But since it may get called for every abbreviated hash we output, even this can add up if you have many packs. Here are before-and-after timings for a new perf test which just asks rev-list to abbreviate each commit hash (the test repo is linux.git, with commit-graphs): Test origin HEAD ---------------------------------------------------------------------------- 5303.3: rev-list (1) 28.91(28.46+0.44) 29.03(28.65+0.38) +0.4% 5303.4: abbrev-commit (1) 1.18(1.06+0.11) 1.17(1.02+0.14) -0.8% 5303.7: rev-list (50) 28.95(28.56+0.38) 29.50(29.17+0.32) +1.9% 5303.8: abbrev-commit (50) 3.67(3.56+0.10) 3.57(3.42+0.15) -2.7% 5303.11: rev-list (1000) 30.34(29.89+0.43) 30.82(30.35+0.46) +1.6% 5303.12: abbrev-commit (1000) 86.82(86.52+0.29) 77.82(77.59+0.22) -10.4% 5303.15: load 10,000 packs 0.08(0.02+0.05) 0.08(0.02+0.06) +0.0% It doesn't help at all when we have 1 pack (5303.4), but we get a 10% speedup when there are 1000 packs (5303.12). That's a modest speedup for a case that's already slow and we'd hope to avoid in general (note how slow it is even after, because we have to look in each of those packs for abbreviations). But it's a one-line change that clearly matches the original intent, so it seems worth doing. The included perf test may also be useful for keeping an eye on any regressions in the overall abbreviation code. Reported-by: Rasmus Villemoes <rv@rasmusvillemoes.dk> Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-17maintenance: add trace2 regions for task executionDerrick Stolee1-0/+2
Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-17maintenance: add auto condition for commit-graph taskDerrick Stolee3-0/+93
Instead of writing a new commit-graph in every 'git maintenance run --auto' process (when maintenance.commit-graph.enalbed is configured to be true), only write when there are "enough" commits not in a commit-graph file. This count is controlled by the maintenance.commit-graph.auto config option. To compute the count, use a depth-first search starting at each ref, and leaving markers using the SEEN flag. If this count reaches the limit, then terminate early and start the task. Otherwise, this operation will peel every ref and parse the commit it points to. If these are all in the commit-graph, then this is typically a very fast operation. Users with many refs might feel a slow-down, and hence could consider updating their limit to be very small. A negative value will force the step to run every time. Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-17maintenance: use pointers to check --autoDerrick Stolee3-2/+18
The 'git maintenance run' command has an '--auto' option. This is used by other Git commands such as 'git commit' or 'git fetch' to check if maintenance should be run after adding data to the repository. Previously, this --auto option was only used to add the argument to the 'git gc' command as part of the 'gc' task. We will be expanding the other tasks to perform a check to see if they should do work as part of the --auto flag, when they are enabled by config. First, update the 'gc' task to perform the auto check inside the maintenance process. This prevents running an extra 'git gc --auto' command when not needed. It also shows a model for other tasks. Second, use the 'auto_condition' function pointer as a signal for whether we enable the maintenance task under '--auto'. For instance, we do not want to enable the 'fetch' task in '--auto' mode, so that function pointer will remain NULL. Now that we are not automatically calling 'git gc', a test in t5514-fetch-multiple.sh must be changed to watch for 'git maintenance' instead. We continue to pass the '--auto' option to the 'git gc' command when necessary, because of the gc.autoDetach config option changes behavior. Likely, we will want to absorb the daemonizing behavior implied by gc.autoDetach as a maintenance.autoDetach config option. Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-17maintenance: create maintenance.<task>.enabled configDerrick Stolee5-5/+44
Currently, a normal run of "git maintenance run" will only run the 'gc' task, as it is the only one enabled. This is mostly for backwards- compatible reasons since "git maintenance run --auto" commands replaced previous "git gc --auto" commands after some Git processes. Users could manually run specific maintenance tasks by calling "git maintenance run --task=<task>" directly. Allow users to customize which steps are run automatically using config. The 'maintenance.<task>.enabled' option then can turn on these other tasks (or turn off the 'gc' task). Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-17maintenance: take a lock on the objects directoryDerrick Stolee1-0/+20
Performing maintenance on a Git repository involves writing data to the .git directory, which is not safe to do with multiple writers attempting the same operation. Ensure that only one 'git maintenance' process is running at a time by holding a file-based lock. Simply the presence of the .git/maintenance.lock file will prevent future maintenance. This lock is never committed, since it does not represent meaningful data. Instead, it is only a placeholder. If the lock file already exists, then no maintenance tasks are attempted. This will become very important later when we implement the 'prefetch' task, as this is our stop-gap from creating a recursive process loop between 'git fetch' and 'git maintenance run --auto'. Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-17maintenance: add --task optionDerrick Stolee3-4/+98
A user may want to only run certain maintenance tasks in a certain order. Add the --task=<task> option, which allows a user to specify an ordered list of tasks to run. These cannot be run multiple times, however. Here is where our array of maintenance_task pointers becomes critical. We can sort the array of pointers based on the task order, but we do not want to move the struct data itself in order to preserve the hashmap references. We use the hashmap to match the --task=<task> arguments into the task struct data. Keep in mind that the 'enabled' member of the maintenance_task struct is a placeholder for a future 'maintenance.<task>.enabled' config option. Thus, we use the 'enabled' member to specify which tasks are run when the user does not specify any --task=<task> arguments. The 'enabled' member should be ignored if --task=<task> appears. Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-17maintenance: add commit-graph taskDerrick Stolee5-4/+45
The first new task in the 'git maintenance' builtin is the 'commit-graph' task. This updates the commit-graph file incrementally with the command git commit-graph write --reachable --split By writing an incremental commit-graph file using the "--split" option we minimize the disruption from this operation. The default behavior is to merge layers until the new "top" layer is less than half the size of the layer below. This provides quick writes most of the time, with the longer writes following a power law distribution. Most importantly, concurrent Git processes only look at the commit-graph-chain file for a very short amount of time, so they will verly likely not be holding a handle to the file when we try to replace it. (This only matters on Windows.) If a concurrent process reads the old commit-graph-chain file, but our job expires some of the .graph files before they can be read, then those processes will see a warning message (but not fail). This could be avoided by a future update to use the --expire-time argument when writing the commit-graph. Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-17maintenance: initialize task arrayDerrick Stolee1-1/+42
In anticipation of implementing multiple maintenance tasks inside the 'maintenance' builtin, use a list of structs to describe the work to be done. The struct maintenance_task stores the name of the task (as given by a future command-line argument) along with a function pointer to its implementation and a boolean for whether the step is enabled. A list these structs are initialized with the full list of implemented tasks along with a default order. For now, this list only contains the "gc" task. This task is also the only task enabled by default. The run subcommand will return a nonzero exit code if any task fails. However, it will attempt all tasks in its loop before returning with the failure. Also each failed task will print an error message. Helped-by: Taylor Blau <me@ttaylorr.com> Helped-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-17maintenance: replace run_auto_gc()Derrick Stolee10-23/+25
The run_auto_gc() method is used in several places to trigger a check for repo maintenance after some Git commands, such as 'git commit' or 'git fetch'. To allow for extra customization of this maintenance activity, replace the 'git gc --auto [--quiet]' call with one to 'git maintenance run --auto [--quiet]'. As we extend the maintenance builtin with other steps, users will be able to select different maintenance activities. Rename run_auto_gc() to run_auto_maintenance() to be clearer what is happening on this call, and to expose all callers in the current diff. Rewrite the method to use a struct child_process to simplify the calls slightly. Since 'git fetch' already allows disabling the 'git gc --auto' subprocess, add an equivalent option with a different name to be more descriptive of the new behavior: '--[no-]maintenance'. Update the documentation to include these options at the same time. Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-17maintenance: add --quiet optionDerrick Stolee3-6/+23
Maintenance activities are commonly used as steps in larger scripts. Providing a '--quiet' option allows those scripts to be less noisy when run on a terminal window. Turn this mode on by default when stderr is not a terminal. Pipe the option to the 'git gc' child process. Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-17maintenance: create basic maintenance runnerDerrick Stolee8-0/+175
The 'gc' builtin is our current entrypoint for automatically maintaining a repository. This one tool does many operations, such as repacking the repository, packing refs, and rewriting the commit-graph file. The name implies it performs "garbage collection" which means several different things, and some users may not want to use this operation that rewrites the entire object database. Create a new 'maintenance' builtin that will become a more general- purpose command. To start, it will only support the 'run' subcommand, but will later expand to add subcommands for scheduling maintenance in the background. For now, the 'maintenance' builtin is a thin shim over the 'gc' builtin. In fact, the only option is the '--auto' toggle, which is handed directly to the 'gc' builtin. The current change is isolated to this simple operation to prevent more interesting logic from being lost in all of the boilerplate of adding a new builtin. Use existing builtin/gc.c file because we want to share code between the two builtins. It is possible that we will have 'maintenance' replace the 'gc' builtin entirely at some point, leaving 'git gc' as an alias for some specific arguments to 'git maintenance run'. Create a new test_subcommand helper that allows us to test if a certain subcommand was run. It requires storing the GIT_TRACE2_EVENT logs in a file. A negation mode is available that will be used in later tests. Helped-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-17contrib/completion: extract common diff/difftool optionsDenton Liu1-9/+6
difftool parses its own options and then passes the remaining options onto diff. As a result, they share common command-line options. Instead of duplicating the list, use a shared $__git_diff_difftool_options list. The completion for diff is missing --relative and the completion for difftool is missing --no-index. Add both of these to the common list. Signed-off-by: Denton Liu <liu.denton@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-17git-diff.txt: backtick quote command textDenton Liu1-9/+9
The modern way to quote commands in the documentation is to use backticks instead of double-quotes as this renders the text with the code style. Convert double-quoted command text to backtick-quoted commands. While we're at it, quote one instance of `^@`. Signed-off-by: Denton Liu <liu.denton@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-17git-diff-index.txt: make --cached description a proper sentenceDenton Liu1-1/+1
Signed-off-by: Denton Liu <liu.denton@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-17t4068: remove unnecessary >tmpDenton Liu1-5/+5
The many `git diff` invocations have a `>tmp` redirection even though the file is not being used afterwards. Remove these unnecessary redirections. Signed-off-by: Denton Liu <liu.denton@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-17bloom/diff: properly short-circuit on max_changesDerrick Stolee4-16/+100
Commit e3696980 (diff: halt tree-diff early after max_changes, 2020-03-30) intended to create a mechanism to short-circuit a diff calculation after a certain number of paths were modified. By incrementing a "num_changes" counter throughout the recursive ll_diff_tree_paths(), this was supposed to match the number of changes that would be written into the changed-path Bloom filters. Unfortunately, this was not implemented correctly and instead misses simple cases like file modifications. This then does not stop very large changed-path filters from being written (unless they add or remove many files). To start, change the implementation in ll_diff_tree_paths() to instead use the global diff_queue_diff struct's 'nr' member as the count. This is a way to simplify the logic instead of making more mistakes in the complicated diff code. This has a drawback: the diff_queue_diff struct only lists the paths corresponding to blob changes, not their leading directories. Thus, get_or_compute_bloom_filter() needs an additional check to see if the hashmap with the leading directories becomes too large. One reason why this was not caught by test cases was that the test in t4216-log-bloom.sh that was supposed to check this "too many changes" condition only checked this on the initial commit of a repository. The old logic counted these values correctly. Update this test in a few ways: 1. Use GIT_TEST_BLOOM_SETTINGS_MAX_CHANGED_PATHS to reduce the limit, allowing smaller commits to engage with this logic. 2. Create several interesting cases of edits, adds, removes, and mode changes (in the second commit). By testing both sides of the inequality with the *_MAX_CHANGED_PATHS variable, we can see that the count is exactly correct, so none of these changes are missed or over-counted. 3. Use the trace2 data value filter_found_large to verify that these commits are on the correct side of the limit. Another way to verify the behavior is correct is through performance tests. By testing on my local copies of the Git repository and the Linux kernel repository, I could measure the effect of these short-circuits when computing a fresh commit-graph file with changed-path Bloom filters using the command GIT_TEST_BLOOM_SETTINGS_MAX_CHANGED_PATHS=N time \ git commit-graph write --reachable --changed-paths and reporting the wall time and resulting commit-graph size. For Git, the results are | | N=1 | N=10 | N=512 | |--------|----------------|----------------|----------------| | HEAD~1 | 10.90s 9.18MB | 11.11s 9.34MB | 11.31s 9.35MB | | HEAD | 9.21s 8.62MB | 11.11s 9.29MB | 11.29s 9.34MB | For Linux, the results are | | N=1 | N=20 | N=512 | |--------|----------------|---------------|---------------| | HEAD~1 | 61.28s 64.3MB | 76.9s 72.6MB | 77.6s 72.6MB | | HEAD | 49.44s 56.3MB | 68.7s 65.9MB | 69.2s 65.9MB | Naturally, the improvement becomes much less as the limit grows, as fewer commits satisfy the short-circuit. Reported-by: SZEDER Gábor <szeder.dev@gmail.com> Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-17bloom: use provided 'struct bloom_filter_settings'Taylor Blau4-19/+19
When 'get_or_compute_bloom_filter()' needs to compute a Bloom filter from scratch, it looks to the default 'struct bloom_filter_settings' in order to determine the maximum number of changed paths, number of bits per entry, and so on. All of these values have so far been constant, and so there was no need to pass in a pointer from the caller (eg., the one that is stored in the 'struct write_commit_graph_context'). Start passing in a 'struct bloom_filter_settings *' instead of using the default values to respect graph-specific settings (eg., in the case of setting 'GIT_TEST_BLOOM_SETTINGS_MAX_CHANGED_PATHS'). In order to have an initialized value for these settings, move its initialization to earlier in the commit-graph write. Signed-off-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-17bloom: split 'get_bloom_filter()' in twoTaylor Blau7-13/+62
'get_bloom_filter' takes a flag to control whether it will compute a Bloom filter if the requested one is missing. In the next patch, we'll add yet another parameter to this method, which would force all but one caller to specify an extra 'NULL' parameter at the end. Instead of doing this, split 'get_bloom_filter' into two functions: 'get_bloom_filter' and 'get_or_compute_bloom_filter'. The former only looks up a Bloom filter (and does not compute one if it's missing, thus dropping the 'compute_if_not_present' flag). The latter does compute missing Bloom filters, with an additional parameter to store whether or not it needed to do so. This simplifies many call-sites, since the majority of existing callers to 'get_bloom_filter' do not want missing Bloom filters to be computed (so they can drop the parameter entirely and use the simpler version of the function). While we're at it, instrument the new 'get_or_compute_bloom_filter()' with counters in the 'write_commit_graph_context' struct which store the number of filters that we did and didn't compute, as well as filters that were truncated. It would be nice to drop the 'compute_if_not_present' flag entirely, since all remaining callers of 'get_or_compute_bloom_filter' pass it as '1', but this will change in a future patch and hence cannot be removed. Signed-off-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-17commit-graph.c: store maximum changed pathsTaylor Blau3-3/+16
For now, we assume that there is a fixed constant describing the maximum number of changed paths we are willing to store in a Bloom filter. Prepare for that to (at least partially) not be the case by making it a member of the 'struct bloom_filter_settings'. This will be helpful in the subsequent patches by reducing the size of test cases that exercise storing too many changed paths, as well as preparing for an eventual future in which this value might change. This patch alone does not cause newly generated Bloom filters to use a custom upper-bound on the maximum number of changed paths a single Bloom filter can hold, that will occur in a later patch. Signed-off-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-16mergetool: allow auto-merge for meld to follow the vim-diff behaviorLin Sun3-16/+96
Make the mergetool used with "meld" backend behave similarly to "vimdiff" by telling it to auto-merge non-conflicting parts and highlight the conflicting parts when `mergetool.meld.useAutoMerge` is configured with `true`, or `auto` for detecting the `--auto-merge` option automatically. Helped-by: Đoàn Trần Công Danh <congdanhqx@gmail.com> Helped-by: David Aguilar <davvid@gmail.com> Signed-off-by: Lin Sun <lin.sun@zoom.us> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-16remote-mediawiki doc: link to MediaWiki's current versionÆvar Arnfjörð Bjarmason1-0/+3
Amend a comment in the test.config file to point to the latest upstream version, which makes it easier for the user to tweak this. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-16remote-mediawiki doc: correct link to GitHub projectÆvar Arnfjörð Bjarmason3-3/+3
Change the link to the canonical one, the old link redirects to the new one. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-16ref-filter: allow merged and no-merged filtersAaron Lipman13-65/+92
Enable ref-filter to process multiple merged and no-merged filters, and extend functionality to git branch, git tag and git for-each-ref. This provides an easy way to check for branches that are "graduation candidates:" $ git branch --no-merged master --merged next If passed more than one merged (or more than one no-merged) filter, refs must be reachable from any one of the merged commits, and reachable from none of the no-merged commits. Signed-off-by: Aaron Lipman <alipman88@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-16Doc: cover multiple contains/no-contains filtersAaron Lipman4-0/+15
Update documentation for "git branch", "git for-each-ref" and "git tag" with notes explaining what happens when passed multiple --contains or --no-contains filters. This behavior is useful to document prior to enabling multiple merged/no-merged filters, in order to demonstrate consistent behavior between merged/no-merged and contains/no-contains filters. Signed-off-by: Aaron Lipman <alipman88@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-16t3201: test multiple branch filter combinationsAaron Lipman1-11/+36
Add tests covering the behavior of passing multiple contains/no-contains filters to git branch, e.g.: $ git branch --contains feature_a --contains feature_b $ git branch --no-contains feature_a --no-contains feature_b When passed more than one contains (or no-contains) filter, the tips of the branches returned must be reachable from any of the contains commits and from none of the the no-contains commits. This logic is useful to describe prior to enabling multiple merged/no-merged filters, so that future tests will demonstrate consistent behavior between merged/no-merged and contains/no-contains filters. Signed-off-by: Aaron Lipman <alipman88@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-15commit-graph-format.txt: fix no-parent valueConor Davis1-1/+1
The correct value from commit-graph.c: #define GRAPH_PARENT_NONE 0x70000000 Signed-off-by: Conor Davis <git@conor.fastmail.fm> Reviewed-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-15fetch: pass --ipv4 and --ipv6 options to sub-fetchesAlex Riesen1-0/+4
The options indicate user intent for the whole fetch operation, and ignoring them in sub-fetches (i.e. "--all" and recursive fetching of submodules) is quite unexpected when, for instance, it is intended to limit all of the communication to a specific transport protocol for some reason. Signed-off-by: Alex Riesen <alexander.riesen@cetitec.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-10quote: turn 'nodq' parameter into a set of flagsJunio C Hamano3-13/+20
quote_c_style() and its friend quote_two_c_style() both take an optional "please omit the double quotes around the quoted body" parameter. Turn it into a flag word, assign one bit out of it, and call it CQUOTE_NODQ bit. No behaviour change intended. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-10quote: rename misnamed sq_lookup[] to cq_lookup[]Junio C Hamano1-7/+7
This table is used to see if each byte needs quoting when responding to a request to C-quote the string, not quoting with single-quote in the shell style. Similarly, sq_must_quote() is fed each byte from the string being C-quoted. No behaviour change intended. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-10wt-status: consistently quote paths in "status --short" outputJunio C Hamano2-2/+29
Tracked paths with SP in them were cquoted in "git status --short" output, but untracked, ignored, and unmerged paths weren't. The test was stolen from a patch to fix output for the 'untracked' paths by brian m. carlson, with similar tests added for 'ignored' ones. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-10quote_path: code clarificationJunio C Hamano1-7/+12
The implementation we moved from wt-status to enclose a pathname that has a SP in it inside a dq-pair is a bit convoluted. It lets quote_c_style_counted() do its escaping and then (1) if the input string got escaped, which is checked by seeing if the result begins with a double-quote, declare that we are done. If there wasn't any SP in the input, that is OK, and if there was, the result is quoted already so it is OK, too. (2) if the input string did not get escaped, and the result has SP in it, enclose the whole thing in a dq-pair ourselves. Instead we can scan the path upfront to see if the input has SP in it. If so, we tell quote_c_style_counted() not to enclose its output in a dq-pair, and we add a dq-pair ourselves. Whether the input had bytes that quote_c_style_counted() uses backslash quoting, this would give us a desired quoted string. If the input does not have SP in it, we just let quote_c_style_counted() do its thing as usual, which would enclose the result in a dq-pair only when needed. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-10quote_path: optionally allow quoting a path with SP in itJunio C Hamano3-12/+11
Some code in wt-status.c special case a path with SP in it, which usually does not have to be c-quoted, and ensure that such a path does get quoted. Move the logic to quote_path() and give it a bit in the flags word, QUOTE_PATH_QUOTE_SP. No behaviour change intended. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-10quote_path: give flags parameter to quote_path()Junio C Hamano5-26/+26
The quote_path() function computes a path (relative to its base directory) and c-quotes the result if necessary. Teach it to take a flags parameter to allow its behaviour to be enriched later. No behaviour change intended. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-10quote_path: rename quote_path_relative() to quote_path()Junio C Hamano5-18/+14
There is no quote_path_absolute() or anything that causes confusion, and one of the two large consumers already rename the long name locally with a preprocessor macro. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-09Fit to Plan 9's ANSI/POSIX compatibility layerKyohei Kadota2-34/+34
tr(1) of ANSI/POSIX environment, aka APE, don't support \n literal. It's handles only octal(\ooo) or hexadecimal(\xhhhh) numbers. And its sed(1)'s label is limited to maximum seven characters. Therefore I replaced some labels to drop a character. * close -> cl * continue -> cont (cnt is used for count) * line -> ln * hered -> hdoc * shell -> sh * string -> str Signed-off-by: Kyohei Kadota <lufia@lufia.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-09Fourteenth batchJunio C Hamano1-0/+28
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-09Merge branch 'os/vcbuild'Junio C Hamano4-4/+5
Fix build procedure for MSVC. * os/vcbuild: contrib/buildsystems: fix expat library name for generated vcxproj vcbuild: fix batch file name in README vcbuild: fix library name for expat with make MSVC=1
2020-09-09Merge branch 'jt/interpret-branch-name-fallback'Junio C Hamano20-53/+98
"git status" has trouble showing where it came from by interpreting reflog entries that recordcertain events, e.g. "checkout @{u}", and gives a hard/fatal error. Even though it inherently is impossible to give a correct answer because the reflog entries lose some information (e.g. "@{u}" does not record what branch the user was on hence which branch 'the upstream' needs to be computed, and even if the record were available, the relationship between branches may have changed), at least hide the error to allow "status" show its output. * jt/interpret-branch-name-fallback: wt-status: tolerate dangling marks refs: move dwim_ref() to header file sha1-name: replace unsigned int with option struct
2020-09-09Merge branch 'js/ci-squelch-false-failure'Junio C Hamano1-3/+2
CI noise reduction. * js/ci-squelch-false-failure: ci: avoid ugly "failure" in the `ci-config` job ci: fix indentation of the `ci-config` job
2020-09-09Merge branch 'pb/imap-send-updates'Junio C Hamano1-15/+19
"git imap-send" updates. * pb/imap-send-updates: git-imap-send.txt: add note about localized Gmail folders git-imap-send.txt: do verify SSL certificate for gmail.com git-imap-send.txt: don't duplicate 'Examples' sections
2020-09-09Merge branch 'hv/ref-filter-misc'Junio C Hamano5-65/+161
The "--format=" option to the "for-each-ref" command and friends learned a few more tricks, e.g. the ":short" suffix that applies to "objectname" now also can be used for "parent", "tree", etc. * hv/ref-filter-misc: ref-filter: add `sanitize` option for 'subject' atom pretty: refactor `format_sanitized_subject()` ref-filter: add `short` modifier to 'parent' atom ref-filter: add `short` modifier to 'tree' atom ref-filter: rename `objectname` related functions and fields ref-filter: modify error messages in `grab_objectname()` ref-filter: refactor `grab_objectname()` ref-filter: support different email formats
2020-09-09Merge branch 'ss/submodule-summary-in-c-fixes'Junio C Hamano2-10/+9
Fixups to a topic in 'next'. * ss/submodule-summary-in-c-fixes: t7421: eliminate 'grep' check in t7421.4 for mingw compatibility submodule: fix style in function definition submodule: eliminate unused parameters from print_submodule_summary()
2020-09-09Merge branch 'so/separate-field-for-m-and-diff-merges'Junio C Hamano3-8/+9
Internal API clean-up to handle two options "diff-index" and "log" have, which happen to share the same short form, more sensibly. * so/separate-field-for-m-and-diff-merges: revision: add separate field for "-m" of "diff-index -m"
2020-09-09Merge branch 'es/worktree-repair'Junio C Hamano7-2/+445
"git worktree" gained a "repair" subcommand to help users recover after moving the worktrees or repository manually without telling Git. Also, "git init --separate-git-dir" no longer corrupts administrative data related to linked worktrees. * es/worktree-repair: init: make --separate-git-dir work from within linked worktree init: teach --separate-git-dir to repair linked worktrees worktree: teach "repair" to fix outgoing links to worktrees worktree: teach "repair" to fix worktree back-links to main worktree worktree: add skeleton "repair" command
2020-09-09Merge branch 'jk/worktree-check-clean-leakfix'Junio C Hamano1-5/+3
Leakfix. * jk/worktree-check-clean-leakfix: worktree: fix leak in check_clean_worktree()
2020-09-09Merge branch 'tb/repack-clearing-midx'Junio C Hamano5-11/+65
When a packfile is removed by "git repack", multi-pack-index gets cleared; the code was taught to do so less aggressively by first checking if the midx actually refers to a pack that no longer exists. * tb/repack-clearing-midx: midx: traverse the local MIDX first builtin/repack.c: invalidate MIDX only when necessary
2020-09-09Merge branch 'ss/submodule-summary-in-c'Junio C Hamano7-195/+512
Yet another subcommand of "git submodule" is getting rewritten in C. * ss/submodule-summary-in-c: submodule: port submodule subcommand 'summary' from shell to C t7421: introduce a test script for verifying 'summary' output submodule: rename helper functions to avoid ambiguity submodule: remove extra line feeds between callback struct and macro
2020-09-09refs: add GIT_TRACE_REFS debugging mechanismHan-Wen Nienhuys5-0/+409
When set in the environment, GIT_TRACE_REFS makes git print operations and results as they flow through the ref storage backend. This helps debug discrepancies between different ref backends. Example: $ GIT_TRACE_REFS="1" ./git branch 15:42:09.769631 refs/debug.c:26 ref_store for .git 15:42:09.769681 refs/debug.c:249 read_raw_ref: HEAD: 0000000000000000000000000000000000000000 (=> refs/heads/ref-debug) type 1: 0 15:42:09.769695 refs/debug.c:249 read_raw_ref: refs/heads/ref-debug: 3a238e539bcdfe3f9eb5010fd218640c1b499f7a (=> refs/heads/ref-debug) type 0: 0 15:42:09.770282 refs/debug.c:233 ref_iterator_begin: refs/heads/ (0x1) 15:42:09.770290 refs/debug.c:189 iterator_advance: refs/heads/b4 (0) 15:42:09.770295 refs/debug.c:189 iterator_advance: refs/heads/branch3 (0) Signed-off-by: Han-Wen Nienhuys <hanwen@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>