user/sven/git.git/gettext.c, branch v2.26.0-rc2

Merge branch 'ab/test-env'

2019-07-25T20:59:20Z

Many GIT_TEST_* environment variables control various aspects of how our tests are run, but a few followed "non-empty is true, empty or unset is false" while others followed the usual "there are a few ways to spell true, like yes, on, etc., and also ways to spell false, like no, off, etc." convention. * ab/test-env: env--helper: mark a file-local symbol as static tests: make GIT_TEST_FAIL_PREREQS a boolean tests: replace test_tristate with "git env--helper" tests README: re-flow a previously changed paragraph tests: make GIT_TEST_GETTEXT_POISON a boolean t6040 test: stop using global "script" variable config.c: refactor die_bad_number() to not call gettext() early env--helper: new undocumented builtin wrapping git_env_*() config tests: simplify include cycle test

gettext: always use UTF-8 on native Windows

2019-07-03T21:03:32Z

On native Windows, Git exclusively uses UTF-8 for console output (both with MinTTY and native Win32 Console). Gettext uses `setlocale()` to determine the output encoding for translated text, however, MSVCRT's `setlocale()` does not support UTF-8. As a result, translated text is encoded in system encoding (as per `GetAPC()`), and non-ASCII chars are mangled in console output. Side note: There is actually a code page for UTF-8: 65001. In practice, it does not work as expected at least on Windows 7, though, so we cannot use it in Git. Besides, if we overrode the code page, any process spawned from Git would inherit that code page (as opposed to the code page configured for the current user), which would quite possibly break e.g. diff or merge helpers. So we really cannot override the code page. In `init_gettext_charset()`, Git calls gettext's `bind_textdomain_codeset()` with the character set obtained via `locale_charset()`; Let's override that latter function to force the encoding to UTF-8 on native Windows. In Git for Windows' SDK, there is a `libcharset.h` and therefore we define `HAVE_LIBCHARSET_H` in the MINGW-specific section in `config.mak.uname`, therefore we need to add the override before that conditionally-compiled code block. Rather than simply defining `locale_charset()` to return the string `"UTF-8"`, though, we are careful not to break `LC_ALL=C`: the `ab/no-kwset` patch series, for example, needs to have a way to prevent Git from expecting UTF-8-encoded input. Signed-off-by: Karsten Blees Signed-off-by: Johannes Schindelin Signed-off-by: Junio C Hamano

tests: make GIT_TEST_GETTEXT_POISON a boolean

2019-06-21T16:42:49Z

Change the GIT_TEST_GETTEXT_POISON variable from being "non-empty?" to being a more standard boolean variable. Since it needed to be checked in both C code and shellscript (via test -n) it was one of the remaining shellscript-like variables. Now that we have "env--helper" we can change that. There's a couple of tricky edge cases that arise because we're using git_env_bool() early, and the config-reading "env--helper". If GIT_TEST_GETTEXT_POISON is set to an invalid value die_bad_number() will die, but to do so it would usually call gettext(). Let's detect the special case of GIT_TEST_GETTEXT_POISON and always emit that message in the C locale, lest we infinitely loop. As seen in the updated tests in t0017-env-helper.sh there's also a caveat related to "env--helper" needing to read the config for trace2 purposes. Since the C_LOCALE_OUTPUT prerequisite is lazy and relies on "env--helper" we could get invalid results if we failed to read the config (e.g. because we'd loop on includes) when combined with e.g. "test_i18ngrep" wanting to check with "env--helper" if GIT_TEST_GETTEXT_POISON was true or not. I'm crossing my fingers and hoping that a test similar to the one I removed in the earlier "config tests: simplify include cycle test" change in this series won't happen again, and testing for this explicitly in "env--helper"'s own tests. This change breaks existing uses of e.g. GIT_TEST_GETTEXT_POISON=YesPlease, which we've documented in po/README and other places. As noted in [1] we might want to consider also accepting "YesPlease" in "env--helper" as a special-case. But as the lack of uproar over 6cdccfce1e ("i18n: make GETTEXT_POISON a runtime option", 2018-11-08) demonstrates the audience for this option is a really narrow set of git developers, who shouldn't have much trouble modifying their test scripts, so I think it's better to deal with that minor headache now and make all the relevant GIT_TEST_* variables boolean in the same way than carry the "YesPlease" special-case forward. 1. https://public-inbox.org/git/xmqqtvckm3h8.fsf@gitster-ct.c.googlers.com/ Signed-off-by: Ævar Arnfjörð Bjarmason Signed-off-by: Junio C Hamano

i18n: make GETTEXT_POISON a runtime option

2018-11-09T02:25:19Z

Change the GETTEXT_POISON compile-time + runtime GIT_GETTEXT_POISON test parameter to only be a GIT_TEST_GETTEXT_POISON= runtime parameter, to be consistent with other parameters documented in "Running tests with special setups" in t/README. When I added GETTEXT_POISON in bb946bba76 ("i18n: add GETTEXT_POISON to simulate unfriendly translator", 2011-02-22) I was concerned with ensuring that the _() function would get constant folded if NO_GETTEXT was defined, and likewise that GETTEXT_POISON would be compiled out unless it was defined. But as the benchmark in my [1] shows doing a one-off runtime getenv("GIT_TEST_[...]") is trivial, and since GETTEXT_POISON was originally added the GIT_TEST_* env variables have become the common idiom for turning on special test setups. So change GETTEXT_POISON to work the same way. Now the GETTEXT_POISON=YesPlease compile-time option is gone, and running the tests with GIT_TEST_GETTEXT_POISON=[YesPlease|] can be toggled on/off without recompiling. This allows for conditionally amending tests to test with/without poison, similar to what 859fdc0c3c ("commit-graph: define GIT_TEST_COMMIT_GRAPH", 2018-08-29) did for GIT_TEST_COMMIT_GRAPH. Do some of that, now we e.g. always run the t0205-gettext-poison.sh test. I did enough there to remove the GETTEXT_POISON prerequisite, but its inverse C_LOCALE_OUTPUT is still around, and surely some tests using it can be converted to e.g. always set GIT_TEST_GETTEXT_POISON=. Notes on the implementation: * We still compile a dedicated GETTEXT_POISON build in Travis CI. Perhaps this should be revisited and integrated into the "linux-gcc" build, see ae59a4e44f ("travis: run tests with GIT_TEST_SPLIT_INDEX", 2018-01-07) for prior art in that area. Then again maybe not, see [2]. * We now skip a test in t0000-basic.sh under GIT_TEST_GETTEXT_POISON=YesPlease that wasn't skipped before. This test relies on C locale output, but due to an edge case in how the previous implementation of GETTEXT_POISON worked (reading it from GIT-BUILD-OPTIONS) wasn't enabling poison correctly. Now it does, and needs to be skipped. * The getenv() function is not reentrant, so out of paranoia about code of the form: printf(_("%s"), getenv("some-env")); call use_gettext_poison() in our early setup in git_setup_gettext() so we populate the "poison_requested" variable in a codepath that's won't suffer from that race condition. * We error out in the Makefile if you're still saying GETTEXT_POISON=YesPlease to prompt users to change their invocation. * We should not print out poisoned messages during the test initialization itself to keep it more readable, so the test library hides the variable if set in $GIT_TEST_GETTEXT_POISON_ORIG during setup. See [3]. See also [4] for more on the motivation behind this patch, and the history of the GETTEXT_POISON facility. 1. https://public-inbox.org/git/871s8gd32p.fsf@evledraar.gmail.com/ 2. https://public-inbox.org/git/20181102163725.GY30222@szeder.dev/ 3. https://public-inbox.org/git/20181022202241.18629-2-szeder.dev@gmail.com/ 4. https://public-inbox.org/git/878t2pd6yu.fsf@evledraar.gmail.com/ Signed-off-by: Ævar Arnfjörð Bjarmason Signed-off-by: Junio C Hamano

Merge branch 'js/runtime-prefix'

2018-05-08T06:59:34Z

* js/runtime-prefix: Avoid multiple PREFIX definitions git_setup_gettext: plug memory leak gettext: avoid initialization if the locale dir is not present

Merge branch 'dj/runtime-prefix'

2018-05-08T06:59:17Z

A build-time option has been added to allow Git to be told to refer to its associated files relative to the main binary, in the same way that has been possible on Windows for quite some time, for Linux, BSDs and Darwin. * dj/runtime-prefix: Makefile: quote $INSTLIBDIR when passing it to sed Makefile: remove unused @@PERLLIBDIR@@ substitution variable mingw/msvc: use the new-style RUNTIME_PREFIX helper exec_cmd: provide a new-style RUNTIME_PREFIX helper for Windows exec_cmd: RUNTIME_PREFIX on some POSIX systems Makefile: add Perl runtime prefix support Makefile: generate Perl header from template file

git_setup_gettext: plug memory leak

2018-04-24T02:12:32Z

The system_path() function returns a freshly-allocated string. We need to release it. Signed-off-by: Johannes Schindelin Signed-off-by: Junio C Hamano

gettext: avoid initialization if the locale dir is not present

2018-04-24T02:12:31Z

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 Signed-off-by: Junio C Hamano

exec_cmd: RUNTIME_PREFIX on some POSIX systems

2018-04-11T09:10:28Z

Enable Git to resolve its own binary location using a variety of OS-specific and generic methods, including: - procfs via "/proc/self/exe" (Linux) - _NSGetExecutablePath (Darwin) - KERN_PROC_PATHNAME sysctl on BSDs. - argv0, if absolute (all, including Windows). This is used to enable RUNTIME_PREFIX support for non-Windows systems, notably Linux and Darwin. When configured with RUNTIME_PREFIX, Git will do a best-effort resolution of its executable path and automatically use this as its "exec_path" for relative helper and data lookups, unless explicitly overridden. Small incidental formatting cleanup of "exec_cmd.c". Signed-off-by: Dan Jacques Thanks-to: Robbie Iannucci Thanks-to: Junio C Hamano Signed-off-by: Junio C Hamano

gettext: add is_utf8_locale()

2016-07-01T19:44:57Z

This function returns true if git is running under an UTF-8 locale. pcre in the next patch will need this. is_encoding_utf8() is used instead of strcmp() to catch both "utf-8" and "utf8" suffixes. When built with no gettext support, we peek in several env variables to detect UTF-8. pcre library might support utf-8 even if libc is built without locale support.. The peeking code is a copy from compat/regex/regcomp.c Helped-by: Ævar Arnfjörð Bjarmason Signed-off-by: Nguyễn Thái Ngọc Duy Signed-off-by: Junio C Hamano