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2018-04-24Avoid multiple PREFIX definitionsPhilip Oakley3-8/+8
The short and sweet PREFIX can be confused when used in many places. Rename both usages to better describe their purpose. EXEC_CMD_PREFIX is used in full to disambiguate it from the nearby GIT_EXEC_PATH. The PREFIX in sideband.c, while nominally independant of the exec_cmd PREFIX, does reside within libgit[1], so the definitions would clash when taken together with a PREFIX given on the command line for use by exec_cmd.c. Noticed when compiling Git for Windows using MSVC/Visual Studio [1] which reports the conflict beteeen the command line definition and the definition in sideband.c within the libgit project. [1] the libgit functions are brought into a single sub-project within the Visual Studio construction script provided in contrib, and hence uses a single command for both exec_cmd.c and sideband.c. Signed-off-by: Philip Oakley <philipoakley@iee.org> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-24git_setup_gettext: plug memory leakJohannes Schindelin1-2/+7
The system_path() function returns a freshly-allocated string. We need to release it. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-24gettext: avoid initialization if the locale dir is not presentJohannes Schindelin1-0/+3
The runtime of a simple `git.exe version` call on Windows is currently dominated by the gettext setup, adding a whopping ~150ms to the ~210ms total. Given that this cost is added to each and every git.exe invocation goes through common-main's invocation of git_setup_gettext(), and given that scripts have to call git.exe dozens, if not hundreds, of times, this is a substantial performance penalty. This is particularly pointless when considering that Git for Windows ships without localization (to keep the installer's size to a bearable ~34MB): all that time setting up gettext is for naught. To be clear, Git for Windows *needs* to be compiled with localization, for the following reasons: - to allow users to copy add-on localization in case they want it, and - to fix the nasty error message BUG: your vsnprintf is broken (returned -1) by using libgettext's override of vsnprintf() that does not share the behavior of msvcrt.dll's version of vsnprintf(). So let's be smart about it and skip setting up gettext if the locale directory is not even present. Since localization might be missing for not-yet-supported locales, this will not break anything. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-24Makefile: quote $INSTLIBDIR when passing it to sedJonathan Nieder1-1/+1
f6a0ad4b (Makefile: generate Perl header from template file, 2018-04-10) moved code for generating the 'use lib' lines at the top of perl scripts from the $(SCRIPT_PERL_GEN) rule to a separate GIT-PERL-HEADER rule. This rule first populates INSTLIBDIR and then substitutes it into the GIT-PERL-HEADER using sed: INSTLIBDIR=... something ... sed -e 's=@@INSTLIBDIR@@='$$INSTLIBDIR'=g' $< > $@ Because $INSTLIBDIR is not surrounded by double quotes, the shell splits it at each space, causing errors if INSTLIBDIR contains an $IFS character: sed: 1: "s=@@INSTLIBDIR@@=/usr/l ...": unescaped newline inside substitute pattern Add back the missing double-quotes to make it work again. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-24Makefile: remove unused @@PERLLIBDIR@@ substitution variableJonathan Nieder1-1/+0
Junio noticed that this variable is not quoted correctly when it is passed to sed. As a shell-quoted string, it should be inside single-quotes like $(perllibdir_relative_SQ), not outside them like $INSTLIBDIR. In fact, this substitution variable is not used. Simplify by removing it. Reported-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-24config: document the settings to colorize push errors/hintsJohannes Schindelin1-0/+28
Let's make it easier for users to find out how to customize these colors. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-24push: test to verify that push errors are coloredJohannes Schindelin1-0/+12
This actually only tests whether the push errors/hints are colored if the respective color.* config settings are `always`, but in the regular case they default to `auto` (in which case we color the messages when stderr is connected to an interactive terminal), therefore these tests should suffice. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-24push: colorize errorsRyan Dammrose4-5/+157
This is an attempt to resolve an issue I experience with people that are new to Git -- especially colleagues in a team setting -- where they miss that their push to a remote location failed because the failure and success both return a block of white text. An example is if I push something to a remote repository and then a colleague attempts to push to the same remote repository and the push fails because it requires them to pull first, but they don't notice because a success and failure both return a block of white text. They then continue about their business, thinking it has been successfully pushed. This patch colorizes the errors and hints (in red and yellow, respectively) so whenever there is a failure when pushing to a remote repository that fails, it is more noticeable. [jes: fixed a couple bugs, added the color.{advice,push,transport} settings, refactored to use want_color_stderr().] Signed-off-by: Ryan Dammrose ryandammrose@gmail.com Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-24color: introduce support for colorizing stderrJohannes Schindelin2-10/+14
So far, we only ever asked whether stdout wants to be colorful. In the upcoming patches, we will want to make push errors more prominent, which are printed to stderr, though. So let's refactor the want_color() function into a want_color_fd() function (which expects to be called with fd == 1 or fd == 2 for stdout and stderr, respectively), and then define the macro `want_color()` to use the want_color_fd() function. And then also add a macro `want_color_stderr()`, for convenience and for documentation. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-23builtin/config: introduce `color` type specifierTaylor Blau3-0/+58
As of this commit, the canonical way to retreive an ANSI-compatible color escape sequence from a configuration file is with the `--get-color` action. This is to allow Git to "fall back" on a default value for the color should the given section not exist in the specified configuration(s). With the addition of `--default`, this is no longer needed since: $ git config --default red --type=color core.section will be have exactly as: $ git config --get-color core.section red For consistency, let's introduce `--type=color` and encourage its use with `--default` together over `--get-color` alone. Signed-off-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-23config.c: introduce 'git_config_color' to parse ANSI colorsTaylor Blau2-0/+11
In preparation for adding `--type=color` to the `git-config(1)` builtin, let's introduce a color parsing utility, `git_config_color` in a similar fashion to `git_config_<type>`. Signed-off-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-23builtin/config: introduce `--default`Taylor Blau3-0/+58
For some use cases, callers of the `git-config(1)` builtin would like to fallback to default values when the variable asked for does not exist. In addition, users would like to use existing type specifiers to ensure that values are parsed correctly when they do exist in the configuration. For example, to fetch a value without a type specifier and fallback to `$fallback`, the following is required: $ git config core.foo || echo "$fallback" This is fine for most values, but can be tricky for difficult-to-express `$fallback`'s, like ANSI color codes. This motivates `--get-color`, which is a one-off exception to the normal type specifier rules wherein a user specifies both the configuration variable and an optional fallback. Both are formatted according to their type specifier, which eases the burden on the user to ensure that values are correctly formatted. This commit (and those following it in this series) aim to eventually replace `--get-color` with a consistent alternative. By introducing `--default`, we allow the `--get-color` action to be promoted to a `--type=color` type specifier, retaining the "fallback" behavior via the `--default` flag introduced in this commit. For example, we aim to replace: $ git config --get-color variable [default] [...] with: $ git config --default default --type=color variable [...] Values filled by `--default` behave exactly as if they were present in the affected configuration file; they will be parsed by type specifiers without the knowledge that they are not themselves present in the configuration. Specifically, this means that the following will work: $ git config --int --default 1M does.not.exist 1048576 In subsequent commits, we will offer `--type=color`, which (in conjunction with `--default`) will be sufficient to replace `--get-color`. Signed-off-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-23parseopt: handle malformed --expire arguments more nicelyJunio C Hamano3-1/+19
A few commands that parse --expire=<time> command line option behave sillily when given nonsense input. For example $ git prune --no-expire Segmentation falut $ git prune --expire=npw; echo $? 129 Both come from parse_opt_expiry_date_cb(). The former is because the function is not prepared to see arg==NULL (for "--no-expire", it is a norm; "--expire" at the end of the command line could be made to pass NULL, if it is told that the argument is optional, but we don't so we do not have to worry about that case). The latter is because it does not check the value returned from the underlying parse_expiry_date(). This seems to be a recent regression introduced while we attempted to avoid spewing the entire usage message when given a correct option but with an invalid value at 3bb0923f ("parse-options: do not show usage upon invalid option value", 2018-03-22). Before that, we didn't fail silently but showed a full usage help (which arguably is not all that better). Also catch this error early when "git gc --prune=<expiration>" is misspelled by doing a dummy parsing before the main body of "gc" that is time consuming even begins. Otherwise, we'd spend time to pack objects and then later have "git prune" first notice the error. Aborting "gc" in the middle that way is not harmful but is ugly and can be avoided. Helped-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-23gc: do not upcase error message shown with die()Junio C Hamano1-1/+1
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-21fast-export: fix regression skipping some merge-commitsMartin Ågren2-1/+22
7199203937 (object_array: add and use `object_array_pop()`, 2017-09-23) noted that the pattern `object = array.objects[--array.nr].item` could be abstracted as `object = object_array_pop(&array)`. Unfortunately, one of the conversions was horribly wrong. Between grabbing the last object (i.e., peeking at it) and decreasing the object count, the original code would sometimes return early. The updated code on the other hand, will always pop the last element, then maybe do the early return without doing anything with the object. The end result is that merge commits where all the parents have still not been exported will simply be dropped, meaning that they will be completely missing from the exported data. Re-add a commit when it is not yet time to handle it. An alternative that was considered was to peek-then-pop. That carries some risk with it since the peeking and popping need to act on the same object, in a concerted fashion. Add a test that would have caught this. Reported-by: Isaac Chou <Isaac.Chou@microfocus.com> Analyzed-by: Isaac Chou <Isaac.Chou@microfocus.com> Helped-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Martin Ågren <martin.agren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-20completion: make stash -p and alias for stash push -pThomas Gummerer1-0/+3
We define 'git stash -p' as an alias for 'git stash push -p' in the manpage. Do the same in the completion script, so all options that can be given to 'git stash push' are being completed when the user is using 'git stash -p --<tab>'. Currently the only additional option the user will get is '--message', but there may be more in the future. Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-20completion: stop showing 'save' for stash by defaultThomas Gummerer1-2/+7
The 'save' subcommand in git stash has been deprecated in fd2ebf14db ("stash: mark "git stash save" deprecated in the man page", 2017-10-22). Stop showing it when the users enters 'git stash <tab>' or 'git stash s<tab>'. Keep showing it however when the user enters 'git stash sa<tab>' or any more characters of the 'save' subcommand. This is designed to not encourage users to use 'git stash save', but still leaving the completion option once it's clear that's what the user means. Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-20doc/clone: update caption for GIT URLS cross-referenceTodd Zullinger1-1/+1
The description of the <repository> argument directs readers to "See the URLS section below". When generating HTML this becomes a link to the "GIT URLS" section. When reading the man page in a terminal, the caption is slightly misleading. Use "GIT URLS" as the caption to avoid any confusion. Signed-off-by: Todd Zullinger <tmz@pobox.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-19builtin/config.c: support `--type=<type>` as preferred alias for `--<type>`Taylor Blau3-40/+154
`git config` has long allowed the ability for callers to provide a 'type specifier', which instructs `git config` to (1) ensure that incoming values can be interpreted as that type, and (2) that outgoing values are canonicalized under that type. In another series, we propose to extend this functionality with `--type=color` and `--default` to replace `--get-color`. However, we traditionally use `--color` to mean "colorize this output", instead of "this value should be treated as a color". Currently, `git config` does not support this kind of colorization, but we should be careful to avoid squatting on this option too soon, so that `git config` can support `--color` (in the traditional sense) in the future, if that is desired. In this patch, we support `--type=<int|bool|bool-or-int|...>` in addition to `--int`, `--bool`, and etc. This allows the aforementioned upcoming patch to support querying a color value with a default via `--type=color --default=...`, without squandering `--color`. We retain the historic behavior of complaining when multiple, legacy-style `--<type>` flags are given, as well as extend this to conflicting new-style `--type=<type>` flags. `--int --type=int` (and its commutative pair) does not complain, but `--bool --type=int` (and its commutative pair) does. Signed-off-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-19sequencer: reset the committer date before commitsJohannes Sixt1-0/+2
Now that the sequencer commits without forking when the commit message isn't edited all the commits that are picked have the same committer date. If a commit is reworded it's committer date will be a later time as it is created by running an separate instance of 'git commit'. If the reworded commit is follow by further picks, those later commits will have an earlier committer date than the reworded one. This is caused by git caching the default date used when GIT_COMMITTER_DATE is not set. Reset the cached date before a commit is generated in-process. Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-19send-email: avoid duplicate In-Reply-To/ReferencesStefan Agner1-1/+6
In case a patch already has In-Reply-To or References in the header (e.g. when the patch has been created with format-patch --thread) git-send-email should not add another pair of those headers. This is also not allowed according to RFC 5322 Section 3.6: https://tools.ietf.org/html/rfc5322#section-3.6 Avoid the second pair by reading the current headers into the appropriate variables. Signed-off-by: Stefan Agner <stefan@agner.ch> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-18Makefile: mark perllibdir as a .PHONY targetChristian Hesse1-0/+1
This target should be marked as .PHONY, just like other targets that exist only for their side effects that do not create filesystem entities with the same name. Signed-off-by: Christian Hesse <mail@eworm.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-18submodule--helper: don't print null in 'submodule status'Nguyễn Thái Ngọc Duy1-2/+6
The function compute_rev_name() can return NULL sometimes (e.g. right after 'submodule init'). The current code makes 'submodule status' print this: 19d97bf5af05312267c2e874ee6bcf584d9e9681 sha1collisiondetection ((null)) This ugly 'null' adds no value to the user using this command. More importantly printf() on some platform can't handle NULL as a string and will crash instead of printing '(null)'. Check for this and skip printing this part (the alternative is printing '(n/a)' or something but I think that is just noise). Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Reviewed-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-18git-submodule.txt: quote usage in monospace, drop backslashMartin Ågren1-2/+2
We tend to quote command line examples using `` to set them in a monospace font. The immediate motivation for this patch is to get rid of another instance of \--. As noted in the previous commits, \-- has a tendency of rendering badly. Here, it renders ok (at least with AsciiDoc 8.6.9 and Asciidoctor 1.5.4), but by getting rid of this instance, we reduce the chances of \-- cropping up in places where it matters more. Signed-off-by: Martin Ågren <martin.agren@gmail.com>
2018-04-18git-[short]log.txt: unify quoted standalone --Martin Ågren2-3/+3
In git-log.txt, we have an instance of \--, which is known to sometimes render badly. This one is even worse than normal though, since ``\-- '' (with or without that trailing space) appears to be entirely broken, both in HTML and manpages, both with AsciiDoc (version 8.6.9) and Asciidoctor (version 1.5.4). Further down in git-log.txt we have a ``--'', which renders good. In git-shortlog.txt, we use "\-- " (including the quotes and the space), which happens to look fairly good. I failed to find any other similar instances. So all in all, we quote a double-dash in three different places and do it differently each time, with various degrees of success. Switch all of these to `--`. This sets the double-dash in monospace and matches what we usually do with example command line usages and options. Note that we drop the trailing space as well, since `-- ` does not render well. These should still be clear enough since just a few lines above each instance, the space is clearly visible in a longer context. Signed-off-by: Martin Ågren <martin.agren@gmail.com>
2018-04-18doc: convert [\--] to [--]Martin Ågren3-5/+5
Commit 1c262bb7b (doc: convert \--option to --option, 2015-05-13) explains that we used to need to write \--option to play well with older versions of AsciiDoc, but that we do not support such versions anymore anyway, and that Asciidoctor literally renders \--. With [\--], which is used to denote the optional separator between revisions and paths, Asciidoctor renders the backslash literally. Change all [\--] to [--]. This changes nothing for AsciiDoc version 8.6.9, but is an improvement for Asciidoctor version 1.5.4. We use double-dashes in several list entries (\--::). In my testing, it appears that we do need to use the backslash there, so leave those. Signed-off-by: Martin Ågren <martin.agren@gmail.com>
2018-04-18doc: convert \--option to --optionMartin Ågren2-2/+2
Rather than using a backslash in \--foo, with or without ''-quoting, write `--foo` for better rendering. As explained in commit 1c262bb7b (doc: convert \--option to --option, 2015-05-13), the backslash is not needed for the versions of AsciiDoc that we support, but is rendered literally by Asciidoctor. Signed-off-by: Martin Ågren <martin.agren@gmail.com>
2018-04-18docs/git-gc: fix minor rendering issueSZEDER Gábor1-1/+1
An unwanted single quote character in the paragraph documenting the 'gc.aggressiveWindow' config variable prevented the name of that config variable from being rendered correctly, ever since that piece of docs was added in 0d7566a5ba (Add --aggressive option to 'git gc', 2007-05-09). Remove that single quote. Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-18worktree: accept -f as short for --force for removalStefan Beller2-3/+4
Many commands support a "--force" option, frequently abbreviated as "-f", however, "git worktree remove"'s hand-rolled OPT_BOOL forgets to recognize the short form, despite git-worktree.txt documenting "-f" as supported. Replace OPT_BOOL with OPT__FORCE, which provides "-f" for free, and makes 'remove' consistent with 'add' option parsing (which also specifies the PARSE_OPT_NOCOMPLETE flag). Helped-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-18completion: reduce overhead of clearing cached --optionsSZEDER Gábor1-1/+5
To get the names of all '$__git_builtin_*' variables caching --options of builtin commands in order to unset them, 8b0eaa41f2 (completion: clear cached --options when sourcing the completion script, 2018-03-22) runs a 'set |sed s///' pipeline. This works both in Bash and in ZSH, but has a higher than necessary overhead with the extra processes. In Bash we can do better: run the 'compgen -v __gitcomp_builtin_' builtin command, which lists the same variables, but without a pipeline and 'sed' it can do so with lower overhead. ZSH will still continue to run that pipeline. This change also happens to work around an issue in the default Bash version shipped in macOS (3.2.57), reported by users of the Powerline shell prompt, which was triggered by the same commit 8b0eaa41f2 as well. Powerline uses several Unicode Private Use Area code points to represent some of its pretty text UI elements (arrows and what not), and these are stored in the $PS1 variable. Apparently the 'set' builtin of said Bash version on macOS has issues with these code points, and produces garbled output where Powerline's special symbols should be in the $PS1 variable. This, in turn, triggers the following error message in the downstream 'sed' process: sed: RE error: illegal byte sequence Other Bash versions, notably 4.4.19 on macOS via homebrew (i.e. a newer version on the same platform) and 3.2.25 on CentOS (i.e. a slightly earlier version, though on a different platform) are not affected. ZSH in macOS (the versions shipped by default or installed via homebrew) or on other platforms isn't affected either. With this patch neither the 'set' builtin is invoked to print garbage, nor 'sed' to choke on it. Issue-on-macOS-reported-by: Stephon Harris <theonestep4@gmail.com> Issue-on-macOS-explained-by: Matthew Coleman <matt@1eanda.com> Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-17glossary: substitute "ancestor" for "direct ancestor" in 'push' description.Sergey Organov1-1/+1
Even though "direct ancestor" is not defined in the glossary, the common meaning of the term is simply "parent", parents being the only direct ancestors, and the rest of ancestors being indirect ancestors. As "parent" is obviously wrong in this place in the description, we should simply say "ancestor", as everywhere else. Signed-off-by: Sergey Organov <sorganov@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-17t1510-repo-setup.sh: remove useless mkdirTao Qingyun1-1/+0
Signed-off-by: Tao Qingyun <845767657@qq.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-16git{,-blame}.el: remove old bitrotting Emacs codeÆvar Arnfjörð Bjarmason5-2228/+25
The git-blame.el mode has been superseded by Emacs's own vc-annotate (invoked by C-x v g). Users of the git.el mode are now much better off using either Magit or the Git backend for Emacs's own VC mode. These modes were added over 10 years ago when Emacs's own Git support was much less mature, and there weren't other mature modes in the wild or shipped with Emacs itself. These days these modes have few if any users, and users of git aren't well served by us shipping these (some OS's install them alongside git by default, which is confusing and leads users astray). So let's remove these per Alexandre Julliard's message to the ML[1]. If someone still wants these for some reason they're better served by hosting these elsewhere (e.g. on ELPA), instead of us distributing them with git. However, since downstream packagers such as Debian are packaging this as git-el it's less disruptive to still carry these files as Elisp code that'll error out with a message suggesting alternatives, rather than drop the files entirely[2]. Then rather than receive a cryptic load error when they upgrade existing users will get an error directing them to the README file, or to just stop requiring these modes. I think it makes sense to link to GitHub's hosting of contrib/emacs/README (which'll be updated by the time users see this) so they don't have to hunt down the packaged README on their local system. 1. "Re: [PATCH] git.el: handle default excludesfile properly" (87muzlwhb0.fsf@winehq.org) -- https://public-inbox.org/git/87muzlwhb0.fsf@winehq.org/ 2. "Re: [PATCH v3] git{,-blame}.el: remove old bitrotting Emacs code" (20180327165751.GA4343@aiede.svl.corp.google.com) -- https://public-inbox.org/git/20180327165751.GA4343@aiede.svl.corp.google.com/ Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-16gpg-interface: find the last gpg signature lineJeff King2-3/+20
A signed tag has a detached signature like this: object ... [...more header...] This is the tag body. -----BEGIN PGP SIGNATURE----- [opaque gpg data] -----END PGP SIGNATURE----- Our parser finds the _first_ line that appears to start a PGP signature block, meaning we may be confused by a signature (or a signature-like line) in the actual body. Let's keep parsing and always find the final block, which should be the detached signature over all of the preceding content. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Ben Toews <mastahyeti@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-16gpg-interface: extract gpg line matching helperJeff King1-2/+7
Let's separate the actual line-by-line parsing of signatures from the notion of "is this a gpg signature line". That will make it easier to do more refactoring of this loop in future patches. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Ben Toews <mastahyeti@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-16gpg-interface: fix const-correctness of "eol" pointerJeff King1-2/+1
We accidentally shed the "const" of our buffer by passing it through memchr. Let's fix that, and while we're at it, move our variable declaration inside the loop, which is the only place that uses it. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Ben Toews <mastahyeti@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-16gpg-interface: use size_t for signature buffer sizeJeff King2-2/+2
Even though our object sizes (from which these buffers would come) are typically "unsigned long", this is something we'd like to eventually fix (since it's only 32-bits even on 64-bit Windows). It makes more sense to use size_t when taking an in-memory buffer. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Ben Toews <mastahyeti@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-16gpg-interface: modernize function declarationsJeff King2-28/+38
Let's drop "extern" from our declarations, which brings us in line with our modern style guidelines. While we're here, let's wrap some of the overly long lines, and move docstrings for public functions to their declarations, since they document the interface. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Ben Toews <mastahyeti@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-16gpg-interface: handle bool user.signingkeyJeff King1-0/+6
The config handler for user.signingkey does not check for a boolean value, and thus: git -c user.signingkey tag will segfault. We could fix this and even shorten the code by using git_config_string(). But our set_signing_key() helper is used by other code outside of gpg-interface.c, so we must keep it (and we may as well use it, because unlike git_config_string() it does not leak when we overwrite an old value). Ironically, the handler for gpg.program just below _could_ use git_config_string() but doesn't. But since we're going to touch that in a future patch, we'll leave it alone for now. We will add some whitespace and returns in preparation for adding more config keys, though. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Ben Toews <mastahyeti@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-16t7004: fix mistaken tag nameJeff King1-1/+1
We have a series of tests which create signed tags with various properties, but one test accidentally verifies a tag from much earlier in the series. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Ben Toews <mastahyeti@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-16Makefile: add a DEVOPTS to get all of -WextraÆvar Arnfjörð Bjarmason2-0/+8
Change DEVOPTS to understand a "extra-all" option. When the DEVELOPER flag is enabled we turn on -Wextra, but manually switch some of the warnings it turns on off. This is because we have many existing occurrences of them in the code base. This mode will stop the suppression, let the developer see and decide whether to fix them. This change is a slight alteration of Nguyễn Thái Ngọc Duy EAGER_DEVELOPER mode patch[1] 1. "[PATCH v3 3/3] Makefile: add EAGER_DEVELOPER mode" (<20180329150322.10722-4-pclouds@gmail.com>; https://public-inbox.org/git/20180329150322.10722-4-pclouds@gmail.com/) Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-16Makefile: add a DEVOPTS to suppress -Werror under DEVELOPERÆvar Arnfjörð Bjarmason2-0/+12
Add a DEVOPTS variable that'll be used to tweak the behavior of DEVELOPER. I've long wanted to use DEVELOPER=1 in my production builds, but on some old systems I still get warnings, and thus the build would fail. However if the build/tests fail for some other reason, it would still be useful to scroll up and see what the relevant code is warning about. This change allows for that. Now setting DEVELOPER will set -Werror as before, but if DEVOPTS=no-error is provided is set you'll get the same warnings, but without -Werror. Helped-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-16Makefile: detect compiler and enable more warnings in DEVELOPER=1Nguyễn Thái Ngọc Duy3-10/+96
The set of extra warnings we enable when DEVELOPER has to be conservative because we can't assume any compiler version the developer may use. Detect the compiler version so we know when it's safe to enable -Wextra and maybe more. These warning settings are mostly from my custom config.mak a long time ago when I tried to enable as many warnings as possible that can still build without showing warnings. Some of those warnings are probably worth fixing instead of just suppressing in future. Helped-by: Jeff King <peff@peff.net> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-16connect.c: mark die_initial_contact() NORETURNNguyễn Thái Ngọc Duy1-1/+1
There is a series running in parallel with this one that adds code like this switch (...) { case ...: die_initial_contact(); case ...: There is nothing wrong with this. There is no actual falling through. But since gcc is not that smart and gcc 7.x introduces -Wimplicit-fallthrough, it raises a false alarm in this case. This class of warnings may be useful elsewhere, so instead of suppressing the whole class, let's try to fix just this code. gcc is smart enough to realize that no execution can continue after a NORETURN function call and no longer raises the warning. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-16convert: add round trip check based on 'core.checkRoundtripEncoding'Lars Schneider7-0/+137
UTF supports lossless conversion round tripping and conversions between UTF and other encodings are mostly round trip safe as Unicode aims to be a superset of all other character encodings. However, certain encodings (e.g. SHIFT-JIS) are known to have round trip issues [1]. Add 'core.checkRoundtripEncoding', which contains a comma separated list of encodings, to define for what encodings Git should check the conversion round trip if they are used in the 'working-tree-encoding' attribute. Set SHIFT-JIS as default value for 'core.checkRoundtripEncoding'. [1] https://support.microsoft.com/en-us/help/170559/prb-conversion-problem-between-shift-jis-and-unicode Signed-off-by: Lars Schneider <larsxschneider@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-16convert: add tracing for 'working-tree-encoding' attributeLars Schneider2-0/+27
Add the GIT_TRACE_WORKING_TREE_ENCODING environment variable to enable tracing for content that is reencoded with the 'working-tree-encoding' attribute. This is useful to debug encoding issues. Signed-off-by: Lars Schneider <larsxschneider@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-16convert: check for detectable errors in UTF encodingsLars Schneider2-0/+123
Check that new content is valid with respect to the user defined 'working-tree-encoding' attribute. Signed-off-by: Lars Schneider <larsxschneider@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-16convert: add 'working-tree-encoding' attributeLars Schneider5-2/+336
Git recognizes files encoded with ASCII or one of its supersets (e.g. UTF-8 or ISO-8859-1) as text files. All other encodings are usually interpreted as binary and consequently built-in Git text processing tools (e.g. 'git diff') as well as most Git web front ends do not visualize the content. Add an attribute to tell Git what encoding the user has defined for a given file. If the content is added to the index, then Git reencodes the content to a canonical UTF-8 representation. On checkout Git will reverse this operation. Signed-off-by: Lars Schneider <larsxschneider@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-16utf8: add function to detect a missing UTF-16/32 BOMLars Schneider2-0/+32
If the endianness is not defined in the encoding name, then let's be strict and require a BOM to avoid any encoding confusion. The is_missing_required_utf_bom() function returns true if a required BOM is missing. The Unicode standard instructs to assume big-endian if there in no BOM for UTF-16/32 [1][2]. However, the W3C/WHATWG encoding standard used in HTML5 recommends to assume little-endian to "deal with deployed content" [3]. Strictly requiring a BOM seems to be the safest option for content in Git. This function is used in a subsequent commit. [1] http://unicode.org/faq/utf_bom.html#gen6 [2] http://www.unicode.org/versions/Unicode10.0.0/ch03.pdf Section 3.10, D98, page 132 [3] https://encoding.spec.whatwg.org/#utf-16le Signed-off-by: Lars Schneider <larsxschneider@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-16utf8: add function to detect prohibited UTF-16/32 BOMLars Schneider2-0/+35
Whenever a data stream is declared to be UTF-16BE, UTF-16LE, UTF-32BE or UTF-32LE a BOM must not be used [1]. The function returns true if this is the case. This function is used in a subsequent commit. [1] http://unicode.org/faq/utf_bom.html#bom10 Signed-off-by: Lars Schneider <larsxschneider@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>