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2017-11-15Merge branch 'js/mingw-redirect-std-handles' into maintLibravatar Junio C Hamano1-0/+12
MinGW updates. * js/mingw-redirect-std-handles: mingw: document the standard handle redirection mingw: optionally redirect stderr/stdout via the same handle mingw: add experimental feature to redirect standard handles
2017-11-15Merge branch 'js/wincred-empty-cred' into maintLibravatar Junio C Hamano1-0/+19
MinGW updates. * js/wincred-empty-cred: wincred: handle empty username/password correctly t0302: check helper can handle empty credentials
2017-11-15Merge branch 'ad/5580-unc-tests-on-cygwin' into maintLibravatar Junio C Hamano1-4/+10
UNC paths are also relevant in Cygwin builds and they are now tested just like Mingw builds. * ad/5580-unc-tests-on-cygwin: t5580: add Cygwin support
2017-11-15Merge branch 'tb/complete-checkout' into maintLibravatar Junio C Hamano1-0/+4
Command line completion (in contrib/) update. * tb/complete-checkout: completion: add remaining flags to checkout
2017-11-15Merge branch 'jc/check-ref-format-oor' into maintLibravatar Junio C Hamano1-0/+16
"git check-ref-format --branch @{-1}" bit a "BUG()" when run outside a repository for obvious reasons; clarify the documentation and make sure we do not even try to expand the at-mark magic in such a case, but still call the validation logic for branch names. * jc/check-ref-format-oor: check-ref-format doc: --branch validates and expands <branch> check-ref-format --branch: strip refs/heads/ using skip_prefix check-ref-format --branch: do not expand @{...} outside repository
2017-11-15Merge branch 'jc/t5601-copy-workaround' into maintLibravatar Junio C Hamano1-0/+2
A (possibly flakey) test fix. * jc/t5601-copy-workaround: t5601: rm the target file of cp that could still be executing
2017-11-15Merge branch 'jk/rebase-i-exec-gitdir-fix' into maintLibravatar Junio C Hamano1-0/+11
A recent regression in "git rebase -i" that broke execution of git commands from subdirectories via "exec" insn has been fixed. * jk/rebase-i-exec-gitdir-fix: sequencer: pass absolute GIT_DIR to exec commands
2017-11-15Merge branch 'js/submodule-in-excluded' into maintLibravatar Junio C Hamano1-0/+11
"git status --ignored -u" did not stop at a working tree of a separate project that is embedded in an ignored directory and listed files in that other project, instead of just showing the directory itself as ignored. * js/submodule-in-excluded: status: do not get confused by submodules in excluded directories
2017-11-15Merge branch 'jk/misc-resolve-ref-unsafe-fixes' into maintLibravatar Junio C Hamano1-1/+1
Some codepaths did not check for errors when asking what branch the HEAD points at, which have been fixed. * jk/misc-resolve-ref-unsafe-fixes: worktree: handle broken symrefs in find_shared_symref() log: handle broken HEAD in decoration check remote: handle broken symrefs test-ref-store: avoid passing NULL to printf
2017-11-15Merge branch 'jk/diff-color-moved-fix' into maintLibravatar Junio C Hamano1-36/+177
The experimental "color moved lines differently in diff output" feature was buggy around "ignore whitespace changes" edges, whihch has been corrected. * jk/diff-color-moved-fix: diff: handle NULs in get_string_hash() diff: fix whitespace-skipping with --color-moved t4015: test the output of "diff --color-moved -b" t4015: check "negative" case for "-w --color-moved" t4015: refactor --color-moved whitespace test
2017-11-15Merge branch 'kd/auto-col-with-pager-fix' into maintLibravatar Junio C Hamano1-0/+14
"auto" as a value for the columnar output configuration ought to judge "is the output consumed by humans?" with the same criteria as "auto" for coloured output configuration, i.e. either the standard output stream is going to tty, or a pager is in use. We forgot the latter, which has been fixed. * kd/auto-col-with-pager-fix: column: do not include pager.c column: show auto columns when pager is active
2017-11-02mingw: optionally redirect stderr/stdout via the same handleLibravatar Johannes Schindelin1-1/+7
The "2>&1" notation in Powershell and in Unix shells implies that stderr is redirected to the same handle into which stdout is already written. Let's use this special value to allow the same trick with GIT_REDIRECT_STDERR and GIT_REDIRECT_STDOUT: if the former's value is `2>&1`, then stderr will simply be written to the same handle as stdout. The functionality was suggested by Jeff Hostetler. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-02mingw: add experimental feature to redirect standard handlesLibravatar Johannes Schindelin1-0/+6
Particularly when calling Git from applications, such as Visual Studio's Team Explorer, it is important that stdin/stdout/stderr are closed properly. However, when spawning processes on Windows, those handles must be marked as inheritable if we want to use them, but that flag is a global flag and may very well be used by other spawned processes which then do not know to close those handles. Let's introduce a set of environment variables (GIT_REDIRECT_STDIN and friends) that specify paths to files, or even better, named pipes (which are similar to Unix sockets) and that are used by the spawned Git process. This helps work around above-mentioned issue: those named pipes will be opened in a non-inheritable way upon startup, and no handles are passed around (and therefore no inherited handles need to be closed by any spawned child). This feature shipped with Git for Windows (marked as experimental) since v2.11.0(2), so it has seen some serious testing in the meantime. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-02sequencer: pass absolute GIT_DIR to exec commandsLibravatar Jacob Keller1-0/+11
When we replaced the old shell script based interactive rebase in commmit 18633e1a22a6 ("rebase -i: use the rebase--helper builtin", 2017-02-09) we introduced a regression of functionality in that the GIT_DIR would be sent to the environment of the exec command as-is. This generally meant that it would be passed as "GIT_DIR=.git", which causes problems for any exec command that wants to run git commands in a subdirectory. This isn't a very large regression, since it is not that likely that the exec command will run a git command, and even less likely that it will need to do so in a subdir. This regression was discovered by a build system which uses git-describe to find the current version of the build system, and happened to do so from the src/ sub directory of the project. Fix this by passing in the absolute path of the git directory into the child environment. Signed-off-by: Jacob Keller <jacob.keller@gmail.com> Acked-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-01t0302: check helper can handle empty credentialsLibravatar Jakub Bereżański1-0/+19
Make sure the helper does not crash when blank username and password is provided. If the helper can save such credentials, it should be able to read them back. Signed-off-by: Jakub Bereżański <kuba@berezanscy.pl> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-01t5580: add Cygwin supportLibravatar Adam Dinwoodie1-4/+10
t5580 tests that specifying Windows UNC paths works with Git. Cygwin supports UNC paths, albeit only using forward slashes, not backslashes, so run the compatible tests on Cygwin as well as MinGW. The only complication is Cygwin's `pwd`, which returns a *nix-style path, and that's not suitable for calculating the UNC path to the current directory. Instead use Cygwin's `cygpath` utility to get the Windows-style path. Signed-off-by: Adam Dinwoodie <adam@dinwoodie.org> Reviewed-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-26Merge branch 'mh/ref-locking-fix'Libravatar Junio C Hamano1-0/+141
Transactions to update multiple references that involves a deletion was quite broken in an error codepath and did not abort everything correctly. * mh/ref-locking-fix: files_transaction_prepare(): fix handling of ref lock failure t1404: add a bunch of tests of D/F conflicts
2017-10-26status: do not get confused by submodules in excluded directoriesLibravatar Johannes Schindelin1-0/+11
We meticulously pass the `exclude` flag to the `treat_directory()` function so that we can indicate that files in it are excluded rather than untracked when recursing. But we did not yet treat submodules the same way. Because of that, `git status --ignored --untracked` with a submodule `submodule` in a gitignored `tracked/` would show the submodule in the "Untracked files" section, e.g. On branch master Untracked files: (use "git add <file>..." to include in what will be committed) tracked/submodule/ Ignored files: (use "git add -f <file>..." to include in what will be committed) tracked/submodule/initial.t Instead, we would want it to show the submodule in the "Ignored files" section: On branch master Ignored files: (use "git add -f <file>..." to include in what will be committed) tracked/submodule/ Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-25completion: add remaining flags to checkoutLibravatar Thomas Braun1-0/+4
In the commits 1fc458d9 (builtin/checkout: add --recurse-submodules switch, 2017-03-14), 08d595dc (checkout: add --ignore-skip-worktree-bits in sparse checkout mode, 2013-04-13) and 32669671 (checkout: introduce --detach synonym for "git checkout foo^{commit}", 2011-02-08) checkout gained new flags but the completion was not updated, although these flags are useful completions. Add them. The flags --force and --ignore-other-worktrees are not added as they are potentially dangerous. The flags --progress and --no-progress are only useful for scripting and are therefore also not included. Signed-off-by: Thomas Braun <thomas.braun@virtuell-zuhause.de> Reviewed-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-25files_transaction_prepare(): fix handling of ref lock failureLibravatar Michael Haggerty1-8/+8
Since dc39e09942 (files_ref_store: use a transaction to update packed refs, 2017-09-08), failure to lock a reference has been handled incorrectly by `files_transaction_prepare()`. If `lock_ref_for_update()` fails in the lock-acquisition loop of that function, it sets `ret` then breaks out of that loop. Prior to dc39e09942, that was OK, because the only thing following the loop was the cleanup code. But dc39e09942 added another blurb of code between the loop and the cleanup. That blurb sometimes resets `ret` to zero, making the cleanup code think that the locking was successful. Specifically, whenever * One or more reference deletions have been processed successfully in the lock-acquisition loop. (Processing the first such reference causes a packed-ref transaction to be initialized.) * Then `lock_ref_for_update()` fails for a subsequent reference. Such a failure can happen for a number of reasons, such as the old SHA-1 not being correct, lock contention, etc. This causes a `break` out of the lock-acquisition loop. * The `packed-refs` lock is acquired successfully and `ref_transaction_prepare()` succeeds for the packed-ref transaction. This has the effect of resetting `ret` back to 0, and making the cleanup code think that lock acquisition was successful. In that case, any reference updates that were processed prior to breaking out of the loop would be carried out (loose and packed), but the reference that couldn't be locked and any subsequent references would silently be ignored. This can easily cause data loss if, for example, the user was trying to push a new name for an existing branch while deleting the old name. After the push, the branch could be left unreachable, and could even subsequently be garbage-collected. This problem was noticed in the context of deleting one reference and creating another in a single transaction, when the two references D/F conflict with each other, like git update-ref --stdin <<EOF delete refs/foo create refs/foo/bar HEAD EOF This triggers the above bug because the deletion is processed successfully for `refs/foo`, then the D/F conflict causes `lock_ref_for_update()` to fail when `refs/foo/bar` is processed. In this case the transaction *should* fail, but instead it causes `refs/foo` to be deleted without creating `refs/foo`. This could easily result in data loss. The fix is simple: instead of just breaking out of the loop, jump directly to the cleanup code. This fixes some tests in t1404 that were added in the previous commit. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-25t1404: add a bunch of tests of D/F conflictsLibravatar Michael Haggerty1-0/+141
It is currently not allowed, in a single transaction, to add one reference and delete another reference if the two reference names D/F conflict with each other (e.g., like `refs/foo/bar` and `refs/foo`). The reason is that the code would need to take locks $GIT_DIR/refs/foo.lock $GIT_DIR/refs/foo/bar.lock But the latter lock couldn't coexist with the loose reference file $GIT_DIR/refs/foo , because `$GIT_DIR/refs/foo` cannot be both a directory and a file at the same time (hence the name "D/F conflict). Add a bunch of tests that we cleanly reject such transactions. In fact, many of the new tests currently fail. They will be fixed in the next commit along with an explanation. Reported-by: Jeff King <peff@peff.net> Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-23Merge branch 'jk/write-in-full-fix' into maintLibravatar Junio C Hamano1-1/+1
Many codepaths did not diagnose write failures correctly when disks go full, due to their misuse of write_in_full() helper function, which have been corrected. * jk/write-in-full-fix: read_pack_header: handle signed/unsigned comparison in read result config: flip return value of store_write_*() notes-merge: use ssize_t for write_in_full() return value pkt-line: check write_in_full() errors against "< 0" convert less-trivial versions of "write_in_full() != len" avoid "write_in_full(fd, buf, len) != len" pattern get-tar-commit-id: check write_in_full() return against 0 config: avoid "write_in_full(fd, buf, len) < len" pattern
2017-10-23Merge branch 'er/fast-import-dump-refs-on-checkpoint' into maintLibravatar Junio C Hamano1-0/+142
The checkpoint command "git fast-import" did not flush updates to refs and marks unless at least one object was created since the last checkpoint, which has been corrected, as these things can happen without any new object getting created. * er/fast-import-dump-refs-on-checkpoint: fast-import: checkpoint: dump branches/tags/marks even if object_count==0
2017-10-23Merge branch 'jt/fast-export-copy-modify-fix' into maintLibravatar Junio C Hamano1-1/+19
"git fast-export" with -M/-C option issued "copy" instruction on a path that is simultaneously modified, which was incorrect. * jt/fast-export-copy-modify-fix: fast-export: do not copy from modified file
2017-10-23Merge branch 'nd/worktree-kill-parse-ref' into maintLibravatar Junio C Hamano1-0/+13
"git branch -M a b" while on a branch that is completely unrelated to either branch a or branch b misbehaved when multiple worktree was in use. This has been fixed. * nd/worktree-kill-parse-ref: branch: fix branch renaming not updating HEADs correctly
2017-10-21test-ref-store: avoid passing NULL to printfLibravatar Jeff King1-1/+1
It's possible for resolve_ref_unsafe() to return NULL (e.g., if we are reading and the ref does not exist), in which case we'll pass NULL to printf. On glibc systems this produces "(null)", but on others it may segfault. The tests don't expect any such case, but if we ever did trigger this, we would prefer to cleanly fail the test with unexpected input rather than segfault. Let's manually replace NULL with "(null)". The exact value doesn't matter, as it won't match any possible ref the caller could expect (and anyway, the exit code of the program will tell whether "ref" is valid or not). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-21diff: fix whitespace-skipping with --color-movedLibravatar Jeff King1-0/+67
The code for handling whitespace with --color-moved represents partial strings as a pair of pointers. There are two possible conventions for the end pointer: 1. It points to the byte right after the end of the string. 2. It points to the final byte of the string. But we seem to use both conventions in the code: a. we assign the initial pointers from the NUL-terminated string using (1) b. we eat trailing whitespace by checking the second pointer for isspace(), which needs (2) c. the next_byte() function checks for end-of-string with "if (cp > endp)", which is (2) d. in next_byte() we skip past internal whitespace with "while (cp < end)", which is (1) This creates fewer bugs than you might think, because there are some subtle interactions. Because of (a) and (c), we always return the NUL-terminator from next_byte(). But all of the callers of next_byte() happen to handle that gracefully. Because of the mismatch between (d) and (c), next_byte() could accidentally return a whitespace character right at endp. But because of the interaction of (a) and (b), we fail to actually chomp trailing whitespace, meaning our endp _always_ points to a NUL, canceling out the problem. But that does leave (b) as a real bug: when ignoring whitespace only at the end-of-line, we don't correctly trim it, and fail to match up lines. We can fix the whole thing by moving consistently to one convention. Since convention (1) is idiomatic in our code base, we'll pick that one. The existing "-w" and "-b" tests continue to pass, and a new "--ignore-space-at-eol" shows off the breakage we're fixing. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-21t4015: test the output of "diff --color-moved -b"Libravatar Jeff King1-9/+64
Commit fa5ba2c1dd (diff: fix infinite loop with --color-moved --ignore-space-change, 2017-10-12) added a test to make sure that "--color-moved -b" doesn't run forever, but the test in question doesn't actually have any moved lines in it. Let's scrap that test and add a variant of the existing "--color-moved -w" test, but this time we'll check that we find the move with whitespace changes, but not arbitrary whitespace additions. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-21t4015: check "negative" case for "-w --color-moved"Libravatar Jeff King1-8/+18
We test that lines with whitespace changes are not found by "--color-moved" by default, but are found if "-w" is added. Let's add one more twist: a line that has non-whitespace changes should not be marked as a pure move. This is perhaps an obvious case for us to get right (and we do), but as we add more whitespace tests, they will form a pattern of "make sure this case is a move and this other case is not". Note that we have to add a line to our moved block, since having a too-small block doesn't trigger the "moved" heuristics. And we also add a line of context to ensure that there's more context lines than moved lines (so the diff shows us moving the lines up, rather than moving the context down). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-21t4015: refactor --color-moved whitespace testLibravatar Jeff King1-20/+29
In preparation for testing several different whitespace options, let's split out the setup and cleanup steps of the whitespace test. While we're here, let's also switch to using "<<-" to indent our here-documents properly, and use q_to_tab to more explicitly mark where we expect whitespace to appear. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-18Merge branch 'jk/ref-filter-colors-fix' into maintLibravatar Junio C Hamano12-62/+74
This is the "theoretically more correct" approach of simply stepping back to the state before plumbing commands started paying attention to "color.ui" configuration variable. * jk/ref-filter-colors-fix: tag: respect color.ui config Revert "color: check color.ui in git_default_config()" Revert "t6006: drop "always" color config tests" Revert "color: make "always" the same as "auto" in config" color: make "always" the same as "auto" in config provide --color option for all ref-filter users t3205: use --color instead of color.branch=always t3203: drop "always" color test t6006: drop "always" color config tests t7502: use diff.noprefix for --verbose test t7508: use test_terminal for color output t3701: use test-terminal to collect color output t4015: prefer --color to -c color.diff=always test-terminal: set TERM=vt100
2017-10-18Merge branch 'rs/fsck-null-return-from-lookup' into maintLibravatar Junio C Hamano1-0/+22
Improve behaviour of "git fsck" upon finding a missing object. * rs/fsck-null-return-from-lookup: fsck: handle NULL return of lookup_blob() and lookup_tree()
2017-10-18Merge branch 'rs/qsort-s' into maintLibravatar Junio C Hamano1-1/+1
* rs/qsort-s: test-stringlist: avoid buffer underrun when sorting nothing
2017-10-18Merge branch 'mr/doc-negative-pathspec' into maintLibravatar Junio C Hamano1-1/+12
Doc updates. * mr/doc-negative-pathspec: docs: improve discoverability of exclude pathspec
2017-10-18Merge branch 'ks/test-readme-phrasofix' into maintLibravatar Junio C Hamano1-3/+3
Doc updates. * ks/test-readme-phrasofix: t/README: fix typo and grammatically improve a sentence
2017-10-18Merge branch 'jk/drop-sha1-entry-pos' into maintLibravatar Junio C Hamano2-11/+1
Code clean-up. * jk/drop-sha1-entry-pos: sha1-lookup: remove sha1_entry_pos() from header file sha1_file: drop experimental GIT_USE_LOOKUP search
2017-10-18Merge branch 'tb/ref-filter-empty-modifier' into maintLibravatar Junio C Hamano1-0/+1
In the "--format=..." option of the "git for-each-ref" command (and its friends, i.e. the listing mode of "git branch/tag"), "%(atom:)" (e.g. "%(refname:)", "%(body:)" used to error out. Instead, treat them as if the colon and an empty string that follows it were not there. * tb/ref-filter-empty-modifier: ref-filter.c: pass empty-string as NULL to atom parsers
2017-10-18Merge branch 'ar/request-pull-phrasofix' into maintLibravatar Junio C Hamano1-2/+2
Spell the name of our system as "Git" in the output from request-pull script. * ar/request-pull-phrasofix: request-pull: capitalise "Git" to make it a proper noun
2017-10-18Merge branch 'jk/diff-blob' into maintLibravatar Junio C Hamano1-0/+5
"git cat-file --textconv" started segfaulting recently, which has been corrected. * jk/diff-blob: cat-file: handle NULL object_context.path
2017-10-18Merge branch 'jk/describe-omit-some-refs' into maintLibravatar Junio C Hamano1-1/+5
"git describe --match" learned to take multiple patterns in v2.13 series, but the feature ignored the patterns after the first one and did not work at all. This has been fixed. * jk/describe-omit-some-refs: describe: fix matching to actually match all patterns
2017-10-18Merge branch 'tb/test-lint-echo-e' into maintLibravatar Junio C Hamano1-1/+1
The test linter has been taught that we do not like "echo -e". * tb/test-lint-echo-e: test-lint: echo -e (or -E) is not portable
2017-10-18Merge branch 'rs/archive-excluded-directory' into maintLibravatar Junio C Hamano3-4/+4
"git archive", especially when used with pathspec, stored an empty directory in its output, even though Git itself never does so. This has been fixed. * rs/archive-excluded-directory: archive: don't add empty directories to archives
2017-10-18Merge branch 'mh/packed-ref-store-prep' into maintLibravatar Junio C Hamano1-2/+16
Fix regression to "gitk --bisect" by a recent update. * mh/packed-ref-store-prep: rev-parse: don't trim bisect refnames
2017-10-18Merge branch 'mm/send-email-cc-cruft' into maintLibravatar Junio C Hamano1-0/+4
In addition to "cc: <a@dd.re.ss> # cruft", "cc: a@dd.re.ss # cruft" was taught to "git send-email" as a valid way to tell it that it needs to also send a carbon copy to <a@dd.re.ss> in the trailer section. * mm/send-email-cc-cruft: send-email: don't use Mail::Address, even if available send-email: fix garbage removal after address
2017-10-18Merge branch 'jk/ref-filter-colors-fix'Libravatar Junio C Hamano3-5/+26
This is the "theoretically more correct" approach of simply stepping back to the state before plumbing commands started paying attention to "color.ui" configuration variable. Let's run with this one. * jk/ref-filter-colors-fix: tag: respect color.ui config Revert "color: check color.ui in git_default_config()" Revert "t6006: drop "always" color config tests" Revert "color: make "always" the same as "auto" in config"
2017-10-18check-ref-format --branch: do not expand @{...} outside repositoryLibravatar Junio C Hamano1-0/+16
Running "git check-ref-format --branch @{-1}" from outside any repository produces $ git check-ref-format --branch @{-1} BUG: environment.c:182: git environment hasn't been setup This is because the expansion of @{-1} must come from the HEAD reflog, which involves opening the repository. @{u} and @{push} (which are more unusual because they typically would not expand to a local branch) trigger the same assertion. This has been broken since day one. Before v2.13.0-rc0~48^2 (setup_git_env: avoid blind fall-back to ".git", 2016-10-02), the breakage was more subtle: Git would read reflogs from ".git" within the current directory even if it was not a valid repository. Usually that is harmless because Git is not being run from the root directory of an invalid repository, but in edge cases such accesses can be confusing or harmful. Since v2.13.0, the problem is easier to diagnose because Git aborts with a BUG message. Erroring out is the right behavior: when asked to interpret a branch name like "@{-1}", there is no reasonable answer in this context. But we should print a message saying so instead of an assertion failure. We do not forbid "check-ref-format --branch" from outside a repository altogether because it is ok for a script to pre-process branch arguments without @{...} in such a context. For example, with pre-2.13 Git, a script that does branch='master'; # default value parse_options branch=$(git check-ref-format --branch "$branch") to normalize an optional branch name provided by the user would work both inside a repository (where the user could provide '@{-1}') and outside (where '@{-1}' should not be accepted). So disable the "expand @{...}" half of the feature when run outside a repository, but keep the check of the syntax of a proposed branch name. This way, when run from outside a repository, "git check-ref-format --branch @{-1}" will gracefully fail: $ git check-ref-format --branch @{-1} fatal: '@{-1}' is not a valid branch name and "git check-ref-format --branch master" will succeed as before: $ git check-ref-format --branch master master restoring the usual pre-2.13 behavior. [jn: split out from a larger patch; moved conditional to strbuf_check_branch_ref instead of its caller; fleshed out commit message; some style tweaks in tests] Reported-by: Marko Kungla <marko.kungla@gmail.com> Helped-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-17tag: respect color.ui configLibravatar Jeff King2-0/+11
Since 11b087adfd (ref-filter: consult want_color() before emitting colors, 2017-07-13), we expect that setting "color.ui" to "always" will enable color tag formats even without a tty. As that commit was built on top of 136c8c8b8f (color: check color.ui in git_default_config(), 2017-07-13) from the same series, we didn't need to touch tag's config parsing at all. However, since we reverted 136c8c8b8f, we now need to explicitly call git_color_default_config() to make this work. Let's do so, and also restore the test dropped in 0c88bf5050 (provide --color option for all ref-filter users, 2017-10-03). That commit swapped out our "color.ui=always" test for "--color" in preparation for "always" going away. But since it is here to stay, we should test both cases. Note that for-each-ref also lost its color.ui support as part of reverting 136c8c8b8f. But as a plumbing command, it should _not_ respect the color.ui config. Since it also gained a --color option in 0c88bf5050, that's the correct way to ask it for color. We'll continue to test that, and confirm that "color.ui" is not respected. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-17Revert "color: check color.ui in git_default_config()"Libravatar Jeff King1-1/+1
This reverts commit 136c8c8b8fa39f1315713248473dececf20f8fe7. That commit was trying to address a bug caused by 4c7f1819b3 (make color.ui default to 'auto', 2013-06-10), in which plumbing like diff-tree defaulted to "auto" color, but did not respect a "color.ui" directive to disable it. But it also meant that we started respecting "color.ui" set to "always". This was a known problem, but 4c7f1819b3 argued that nobody ought to be doing that. However, that turned out to be wrong, and we got a number of bug reports related to "add -p" regressing in v2.14.2. Let's revert 136c8c8b8, fixing the regression to "add -p". This leaves the problem from 4c7f1819b3 unfixed, but: 1. It's a pretty obscure problem in the first place. I only noticed it while working on the color code, and we haven't got a single bug report or complaint about it. 2. We can make a more moderate fix on top by respecting "never" but not "always" for plumbing commands. This is just the minimal fix to go back to the working state we had before v2.14.2. Note that this isn't a pure revert. We now have a test in t3701 which shows off the "add -p" regression. This can be flipped to success. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-17Revert "t6006: drop "always" color config tests"Libravatar Jeff King1-5/+15
This reverts commit c5bdfe677cfab5b2e87771c35565d44d3198efda. That commit was done primarily to prepare for the weakening of "always" in 6be4595edb (color: make "always" the same as "auto" in config, 2017-10-03). But since we've now reverted 6be4595edb, there's no need for us to remove "-c color.ui=always" from the tests. And in fact it's a good idea to restore these tests, to make sure that "always" continues to work. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-17Revert "color: make "always" the same as "auto" in config"Libravatar Jeff King1-1/+1
This reverts commit 6be4595edb8e5b616c6e8b9fbc78b0f831fa2a87. That commit weakened the "always" setting of color config so that it acted as "auto". This was meant to solve regressions in v2.14.2 in which setting "color.ui=always" in the on-disk config broke scripts like add--interactive, because the plumbing diff commands began to generate color output. This was due to 136c8c8b8f (color: check color.ui in git_default_config(), 2017-07-13), which was in turn trying to fix issues caused by 4c7f1819b3 (make color.ui default to 'auto', 2013-06-10). But in weakening "always", we created even more problems, as people expect to be able to use "git -c color.ui=always" to force color (especially because some commands don't have their own --color flag). We can fix that by special-casing the command-line "-c", but now things are getting pretty confusing. Instead of piling hacks upon hacks, let's start peeling off the hacks. The first step is dropping the weakening of "always", which this revert does. Note that we could actually revert the whole series merged in by da15b78e52642bd45fd5513ab0000fdf2e58a6f4. Most of that series consists of preparations to the tests to handle the weakening of "-c color.ui=always". But it's worth keeping for a few reasons: - there are some other preparatory cleanups, like e433749d86 (test-terminal: set TERM=vt100, 2017-10-03) - it adds "--color" options more consistently in 0c88bf5050 (provide --color option for all ref-filter users, 2017-10-03) - some of the cases dropping "-c" end up being more robust and realistic tests, as in 01c94e9001 (t7508: use test_terminal for color output, 2017-10-03) - the preferred tool for overriding config is "--color", and we should be modeling that consistently We can individually revert the few commits necessary to restore some useful tests (which will be done on top of this patch). Note that this isn't a pure revert; we'll keep the test added in t3701, but mark it as failure for now. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>