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2021-09-27unpack-trees: avoid nuking untracked dir in way of unmerged fileLibravatar Elijah Newren2-5/+32
Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-27Change unpack_trees' 'reset' flag into an enumLibravatar Elijah Newren9-16/+39
Traditionally, unpack_trees_options->reset was used to signal that it was okay to delete any untracked files in the way. This was used by `git read-tree --reset`, but then started appearing in other places as well. However, many of the other uses should not be deleting untracked files in the way. Change this value to an enum so that a value of 1 (i.e. "true") can be split into two: UNPACK_RESET_PROTECT_UNTRACKED, UNPACK_RESET_OVERWRITE_UNTRACKED In order to catch accidental misuses (i.e. where folks call it the way they traditionally used to), define the special enum value of UNPACK_RESET_INVALID = 1 which will trigger a BUG(). Modify existing callers so that read-tree --reset reset --hard checkout --force continue using the UNPACK_RESET_OVERWRITE_UNTRACKED logic, while other callers, including am checkout without --force stash (though currently dead code; reset always had a value of 0) numerous callers from rebase/sequencer to reset_head() will use the new UNPACK_RESET_PROTECT_UNTRACKED value. Also, note that it has been reported that 'git checkout <treeish> <pathspec>' currently also allows overwriting untracked files[1]. That case should also be fixed, but it does not use unpack_trees() and thus is outside the scope of the current changes. [1] https://lore.kernel.org/git/15dad590-087e-5a48-9238-5d2826950506@gmail.com/ Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-27Remove ignored files by default when they are in the wayLibravatar Elijah Newren9-16/+8
Change several commands to remove ignored files by default when they are in the way. Since some commands (checkout, merge) take a --no-overwrite-ignore option to allow the user to configure this, and it may make sense to add that option to more commands (and in the case of merge, actually plumb that configuration option through to more of the backends than just the fast-forwarding special case), add little comments about where such flags would be used. Incidentally, this fixes a test failure in t7112. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-27unpack-trees: make dir an internal-only structLibravatar Elijah Newren2-3/+6
Avoid accidental misuse or confusion over ownership by clearly making unpack_trees_options.dir an internal-only variable. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-27unpack-trees: introduce preserve_ignored to unpack_trees_optionsLibravatar Elijah Newren14-40/+35
Currently, every caller of unpack_trees() that wants to ensure ignored files are overwritten by default needs to: * allocate unpack_trees_options.dir * flip the DIR_SHOW_IGNORED flag in unpack_trees_options.dir->flags * call setup_standard_excludes AND then after the call to unpack_trees() needs to * call dir_clear() * deallocate unpack_trees_options.dir That's a fair amount of boilerplate, and every caller uses identical code. Make this easier by instead introducing a new boolean value where the default value (0) does what we want so that new callers of unpack_trees() automatically get the appropriate behavior. And move all the handling of unpack_trees_options.dir into unpack_trees() itself. While preserve_ignored = 0 is the behavior we feel is the appropriate default, we defer fixing commands to use the appropriate default until a later commit. So, this commit introduces several locations where we manually set preserve_ignored=1. This makes it clear where code paths were previously preserving ignored files when they should not have been; a future commit will flip these to instead use a value of 0 to get the behavior we want. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-27read-tree, merge-recursive: overwrite ignored files by defaultLibravatar Elijah Newren4-34/+21
This fixes a long-standing patchwork of ignored files handling in read-tree and merge-recursive, called out and suggested by Junio long ago. Quoting from commit dcf0c16ef1 ("core.excludesfile clean-up" 2007-11-16): git-read-tree takes --exclude-per-directory=<gitignore>, not because the flexibility was needed. Again, this was because the option predates the standardization of the ignore files. ... On the other hand, I think it makes perfect sense to fix git-read-tree, git-merge-recursive and git-clean to follow the same rule as other commands. I do not think of a valid use case to give an exclude-per-directory that is nonstandard to read-tree command, outside a "negative" test in the t1004 test script. This patch is the first step to untangle this mess. The next step would be to teach read-tree, merge-recursive and clean (in C) to use setup_standard_excludes(). History shows each of these were partially or fully fixed: * clean was taught the new trick in 1617adc7a0 ("Teach git clean to use setup_standard_excludes()", 2007-11-14). * read-tree was primarily used by checkout & merge scripts. checkout and merge later became builtins and were both fixed to use the new setup_standard_excludes() handling in fc001b526c ("checkout,merge: loosen overwriting untracked file check based on info/exclude", 2011-11-27). So the primary users were fixed, though read-tree itself was not. * merge-recursive has now been replaced as the default merge backend by merge-ort. merge-ort fixed this by using setup_standard_excludes() starting early in its implementation; see commit 6681ce5cf6 ("merge-ort: add implementation of checkout()", 2020-12-13), largely due to its design depending on checkout() and thus being influenced by the checkout code. However, merge-recursive itself was not fixed here, in part because its design meant it had difficulty differentiating between untracked files, ignored files, leftover tracked files that haven't been removed yet due to order of processing files, and files written by itself due to collisions). Make the conversion more complete by now handling read-tree and handling at least the unpack_trees() portion of merge-recursive. While merge-recursive is on its way out, fixing the unpack_trees() portion is easy and facilitates some of the later changes in this series. Note that fixing read-tree makes the --exclude-per-directory option to read-tree useless, so we remove it from the documentation (though we continue to accept it if passed). The read-tree changes happen to fix a bug in t1013. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-27checkout, read-tree: fix leak of unpack_trees_options.dirLibravatar Elijah Newren2-0/+9
Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-24t2500: add various tests for nuking untracked filesLibravatar Elijah Newren1-0/+244
Noting that unpack_trees treats reset=1 & update=1 as license to nuke untracked files, I looked for code paths that use this combination and tried to generate testcases which demonstrated unintentional loss of untracked files and directories. I found several. I also include testcases for `git reset --{hard,merge,keep}`. A hard reset is perhaps the most direct test of unpack_tree's reset=1 behavior, but we cannot make `git reset --hard` preserve untracked files without some migration work. Also, the two commands `checkout --force` (because of the --force) and `read-tree --reset` (because it's plumbing and we need to keep it backward compatible) were left out as we expect those to continue removing untracked files and directories. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-20Merge branch 'en/am-abort-fix' into en/removing-untracked-fixesLibravatar Junio C Hamano3-1/+43
* en/am-abort-fix: am: fix incorrect exit status on am fail to abort t4151: add a few am --abort tests git-am.txt: clarify --abort behavior
2021-09-15The sixth batchLibravatar Junio C Hamano1-0/+30
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-15Merge branch 'jc/prefix-filename-allocates'Libravatar Junio C Hamano1-1/+1
Leakfix. * jc/prefix-filename-allocates: hash-object: prefix_filename() returns allocated memory these days
2021-09-15Merge branch 'rs/range-diff-avoid-segfault-with-I'Libravatar Junio C Hamano1-0/+3
"git range-diff -I... <range> <range>" segfaulted, which has been corrected. * rs/range-diff-avoid-segfault-with-I: range-diff: avoid segfault with -I
2021-09-15Merge branch 'ab/reverse-midx-optim'Libravatar Junio C Hamano1-0/+3
The code that optionally creates the *.rev reverse index file has been optimized to avoid needless computation when it is not writing the file out. * ab/reverse-midx-optim: pack-write: skip *.rev work when not writing *.rev
2021-09-15Merge branch 'bs/install-strip'Libravatar Junio C Hamano1-3/+12
"make INSTALL_STRIP=-s install" allows the installation step to use "install -s" to strip the binaries as they get installed. * bs/install-strip: make: add INSTALL_STRIP option variable
2021-09-15Merge branch 'pb/test-use-user-env'Libravatar Junio C Hamano3-21/+103
Teach "test_pause" and "debug" helpers to allow using the HOME and TERM environment variables the user usually uses. * pb/test-use-user-env: test-lib-functions: keep user's debugger config files and TERM in 'debug' test-lib-functions: optionally keep HOME, TERM and SHELL in 'test_pause' test-lib-functions: use 'TEST_SHELL_PATH' in 'test_pause'
2021-09-15Merge branch 'jc/trivial-threeway-binary-merge'Libravatar Junio C Hamano2-0/+66
The "git apply -3" code path learned not to bother the lower level merge machinery when the three-way merge can be trivially resolved without the content level merge. * jc/trivial-threeway-binary-merge: apply: resolve trivial merge without hitting ll-merge with "--3way"
2021-09-15Merge branch 'bs/doc-bugreport-outdir'Libravatar Junio C Hamano1-2/+2
Docfix. * bs/doc-bugreport-outdir: Documentation: fix default directory of git bugreport -o
2021-09-15Merge branch 'ab/no-more-check-bindir'Libravatar Junio C Hamano2-15/+1
Build simplification. * ab/no-more-check-bindir: Makefile: remove the check_bindir script
2021-09-15Merge branch 'ab/send-email-config-fix'Libravatar Junio C Hamano2-1/+16
Regression fix. * ab/send-email-config-fix: send-email: fix a "first config key wins" regression in v2.33.0
2021-09-15Merge branch 'so/diff-index-regression-fix'Libravatar Junio C Hamano3-14/+8
Recent "diff -m" changes broke "gitk", which has been corrected. * so/diff-index-regression-fix: diff-index: restore -c/--cc options handling
2021-09-10am: fix incorrect exit status on am fail to abortLibravatar Elijah Newren2-2/+3
Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-10t4151: add a few am --abort testsLibravatar Elijah Newren1-0/+39
Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-10git-am.txt: clarify --abort behaviorLibravatar Elijah Newren1-0/+2
Both Johannes and I assumed (perhaps due to familiarity with rebase) that am --abort would return the user to a clean state. However, since am, unlike rebase, is intended to be used within a dirty working tree, --abort will only clean the files involved in the am operation. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-10The fifth batchLibravatar Junio C Hamano1-0/+61
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-10Merge branch 'ab/help-autocorrect-prompt'Libravatar Junio C Hamano2-8/+29
The logic for auto-correction of misspelt subcommands learned to go interactive when the help.autocorrect configuration variable is set to 'prompt'. * ab/help-autocorrect-prompt: help.c: help.autocorrect=prompt waits for user action
2021-09-10Merge branch 'cb/ci-build-pedantic'Libravatar Junio C Hamano3-3/+13
CI update. * cb/ci-build-pedantic: ci: run a pedantic build as part of the GitHub workflow
2021-09-10Merge branch 'gh/gitweb-branch-sort'Libravatar Junio C Hamano1-1/+2
Tie-break branches that point at the same object in the list of branches on GitWeb to show the one pointed at by HEAD early. * gh/gitweb-branch-sort: gitweb: use HEAD as secondary sort key in git_get_heads_list()
2021-09-10Merge branch 'rs/archive-use-object-id'Libravatar Junio C Hamano1-4/+3
Code cleanup. * rs/archive-use-object-id: archive: convert queue_directory to struct object_id
2021-09-10Merge branch 'rs/show-branch-simplify'Libravatar Junio C Hamano1-10/+5
Code cleanup. * rs/show-branch-simplify: show-branch: simplify rev_is_head()
2021-09-10Merge branch 'jk/log-warn-on-bogus-encoding'Libravatar Junio C Hamano4-4/+17
Doc update plus improved error reporting. * jk/log-warn-on-bogus-encoding: docs: use "character encoding" to refer to commit-object encoding logmsg_reencode(): warn when iconv() fails
2021-09-10Merge branch 'cb/remote-ndebug-fix'Libravatar Junio C Hamano1-3/+3
Build fix. * cb/remote-ndebug-fix: remote: avoid -Wunused-but-set-variable in gcc with -DNDEBUG
2021-09-10Merge branch 'ab/retire-advice-config'Libravatar Junio C Hamano25-166/+63
Code clean up to migrate callers from older advice_config[] based API to newer advice_if_enabled() and advice_enabled() API. * ab/retire-advice-config: advice: move advice.graftFileDeprecated squashing to commit.[ch] advice: remove use of global advice_add_embedded_repo advice: remove read uses of most global `advice_` variables advice: add enum variants for missing advice variables
2021-09-10Merge branch 'mk/clone-recurse-submodules'Libravatar Junio C Hamano2-0/+17
After "git clone --recurse-submodules", all submodules are cloned but they are not by default recursed into by other commands. With submodule.stickyRecursiveClone configuration set, submodule.recurse configuration is set to true in a repository created by "clone" with "--recurse-submodules" option. * mk/clone-recurse-submodules: clone: set submodule.recurse=true if submodule.stickyRecursiveClone enabled
2021-09-10Merge branch 'ab/mailmap-leakfix'Libravatar Junio C Hamano1-0/+2
Leakfix. * ab/mailmap-leakfix: mailmap.c: fix a memory leak in free_mailap_{info,entry}()
2021-09-10Merge branch 'ab/gc-log-rephrase'Libravatar Junio C Hamano1-1/+1
A pathname in an advice message has been made cut-and-paste ready. * ab/gc-log-rephrase: gc: remove trailing dot from "gc.log" line
2021-09-10Merge branch 'uk/userdiff-php-enum'Libravatar Junio C Hamano2-1/+5
Update the userdiff pattern for PHP. * uk/userdiff-php-enum: userdiff: support enum keyword in PHP hunk header
2021-09-10Merge branch 'tk/fast-export-anonymized-tag-fix'Libravatar Junio C Hamano2-4/+7
The output from "git fast-export", when its anonymization feature is in use, showed an annotated tag incorrectly. * tk/fast-export-anonymized-tag-fix: fast-export: fix anonymized tag using original length
2021-09-10Merge branch 'ba/object-info'Libravatar Junio C Hamano1-2/+3
Leakfix. * ba/object-info: protocol-caps.c: fix memory leak in send_info()
2021-09-10Merge branch 'ab/commit-graph-usage'Libravatar Junio C Hamano3-46/+74
Fixes on usage message from "git commit-graph". * ab/commit-graph-usage: commit-graph: show "unexpected subcommand" error commit-graph: show usage on "commit-graph [write|verify] garbage" commit-graph: early exit to "usage" on !argc multi-pack-index: refactor "goto usage" pattern commit-graph: use parse_options_concat() commit-graph: remove redundant handling of -h commit-graph: define common usage with a macro
2021-09-10Merge branch 'mh/send-email-reset-in-reply-to'Libravatar Junio C Hamano2-9/+62
Even when running "git send-email" without its own threaded discussion support, a threading related header in one message is carried over to the subsequent message to result in an unwanted threading, which has been corrected. * mh/send-email-reset-in-reply-to: send-email: avoid incorrect header propagation
2021-09-10Merge branch 'rs/more-fspathcmp'Libravatar Junio C Hamano1-4/+1
Code simplification. * rs/more-fspathcmp: merge-recursive: use fspathcmp() in path_hashmap_cmp()
2021-09-10Merge branch 'sg/set-ceiling-during-tests'Libravatar Junio C Hamano1-1/+2
Buggy tests could damage repositories outside the throw-away test area we created. We now by default export GIT_CEILING_DIRECTORIES to limit the damage from such a stray test. * sg/set-ceiling-during-tests: test-lib: set GIT_CEILING_DIRECTORIES to protect the surrounding repository
2021-09-10Merge branch 'jh/sparse-index-resize-fix'Libravatar Junio C Hamano1-0/+1
The sparse-index support can corrupt the index structure by storing a stale and/or uninitialized data, which has been corrected. * jh/sparse-index-resize-fix: sparse-index: copy dir_hash in ensure_full_index()
2021-09-10Merge branch 'es/walken-tutorial-fix'Libravatar Junio C Hamano1-2/+2
Typofix. * es/walken-tutorial-fix: doc: fix syntax error and the format of printf
2021-09-10Merge branch 'tb/add-objects-in-unpacked-packs-simplify'Libravatar Junio C Hamano4-74/+24
Code simplification with reduced memory usage. * tb/add-objects-in-unpacked-packs-simplify: builtin/pack-objects.c: remove duplicate hash lookup builtin/pack-objects.c: simplify add_objects_in_unpacked_packs() object-store.h: teach for_each_packed_object to ignore kept packs
2021-09-10Merge branch 'ps/fetch-omit-formatting-under-quiet'Libravatar Junio C Hamano1-5/+12
"git fetch --quiet" optimization to avoid useless computation of info that will never be displayed. * ps/fetch-omit-formatting-under-quiet: fetch: skip formatting updated refs with `--quiet`
2021-09-10Merge branch 'ka/want-ref-in-namespace'Libravatar Junio C Hamano3-48/+192
"git upload-pack" which runs on the other side of "git fetch" forgot to take the ref namespaces into account when handling want-ref requests. * ka/want-ref-in-namespace: docs: clarify the interaction of transfer.hideRefs and namespaces upload-pack.c: treat want-ref relative to namespace t5730: introduce fetch command helper
2021-09-10Merge branch 'zh/cherry-pick-advice'Libravatar Junio C Hamano3-11/+42
The advice message that "git cherry-pick" gives when it asks conflicted replay of a commit to be resolved by the end user has been updated. * zh/cherry-pick-advice: cherry-pick: use better advice message
2021-09-10Merge branch 'js/advise-when-skipping-cherry-picked'Libravatar Junio C Hamano7-6/+38
"git rebase" by default skips changes that are equivalent to commits that are already in the history the branch is rebased onto; give messages when this happens to let the users be aware of skipped commits, and also teach them how to tell "rebase" to keep duplicated changes. * js/advise-when-skipping-cherry-picked: sequencer: advise if skipping cherry-picked commit
2021-09-08The fourth batchLibravatar Junio C Hamano1-0/+33
Signed-off-by: Junio C Hamano <gitster@pobox.com>