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  1. 14 Sep, 2012 1 commit
  2. 21 Aug, 2012 1 commit
  3. 06 Dec, 2011 1 commit
    • Ævar Arnfjörð Bjarmason's avatar
      i18n: add infrastructure for translating Git with gettext · 5e9637c6
      Ævar Arnfjörð Bjarmason authored
      Change the skeleton implementation of i18n in Git to one that can show
      localized strings to users for our C, Shell and Perl programs using
      either GNU libintl or the Solaris gettext implementation.
      This new internationalization support is enabled by default. If
      gettext isn't available, or if Git is compiled with
      NO_GETTEXT=YesPlease, Git falls back on its current behavior of
      showing interface messages in English. When using the autoconf script
      we'll auto-detect if the gettext libraries are installed and act
      This change is somewhat large because as well as adding a C, Shell and
      Perl i18n interface we're adding a lot of tests for them, and for
      those tests to work we need a skeleton PO file to actually test
      translations. A minimal Icelandic translation is included for this
      purpose. Icelandic includes multi-byte characters which makes it easy
      to test various edge cases, and it's a language I happen to
      The rest of the commit message goes into detail about various
      sub-parts of this commit.
      = Installation
      Gettext .mo files will be installed and looked for in the standard
      $(prefix)/share/locale path. GIT_TEXTDOMAINDIR can also be set to
      override that, but that's only intended to be used to test Git itself.
      = Perl
      Perl code that's to be localized should use the new Git::I18n
      module. It imports a __ function into the caller's package by default.
      Instead of using the high level Locale::TextDomain interface I've
      opted to use the low-level (equivalent to the C interface)
      Locale::Messages module, which Locale::TextDomain itself uses.
      Locale::TextDomain does a lot of redundant work we don't need, and
      some of it would potentially introduce bugs. It tries to set the
      $TEXTDOMAIN based on package of the caller, and has its own
      hardcoded paths where it'll search for messages.
      I found it easier just to completely avoid it rather than try to
      circumvent its behavior. In any case, this is an issue wholly
      internal Git::I18N. Its guts can be changed later if that's deemed
      See <> for
      a further elaboration on this topic.
      = Shell
      Shell code that's to be localized should use the git-sh-i18n
      library. It's basically just a wrapper for the system's
      If isn't available we'll fall back on gettext(1) if it's
      available. The latter is available without the former on Solaris,
      which has its own non-GNU gettext implementation. We also need to
      emulate eval_gettext() there.
      If neither are present we'll use a dumb printf(1) fall-through
      = About libcharset.h and langinfo.h
      We use libcharset to query the character set of the current locale if
      it's available. I.e. we'll use it instead of nl_langinfo if
      HAVE_LIBCHARSET_H is set.
      The GNU gettext manual recommends using langinfo.h's
      nl_langinfo(CODESET) to acquire the current character set, but on
      systems that have libcharset.h's locale_charset() using the latter is
      either saner, or the only option on those systems.
      GNU and Solaris have a nl_langinfo(CODESET), FreeBSD can use either,
      but MinGW and some others need to use libcharset.h's locale_charset()
      This patch is based on work by Jeff Epler <> who
      did the initial Makefile / C work, and a lot of comments from the Git
      mailing list, including Jonathan Nieder, Jakub Narebski, Johannes
      Sixt, Erik Faye-Lund, Peter Krefting, Junio C Hamano, Thomas Rast and
      [jc: squashed a small Makefile fix from Ramsay]
      Signed-off-by: Ævar Arnfjörð Bjarmason's avatarÆvar Arnfjörð Bjarmason <>
      Signed-off-by: default avatarRamsay Jones <>
      Signed-off-by: default avatarJunio C Hamano <>
  4. 11 Apr, 2011 1 commit
  5. 10 Mar, 2011 1 commit
    • Jonathan Nieder's avatar
      i18n: add stub Q_() wrapper for ngettext · 0c9ea33b
      Jonathan Nieder authored
      The Q_ function translates a string representing some pharse with an
      alternative plural form and uses the 'count' argument to choose which
      form to return.  Use of Q_ solves the "%d noun(s)" problem in a way
      that is portable to languages outside the Germanic and Romance
      In English, the semantics of Q_(sing, plur, count) are roughly
      equivalent to
      	count == 1 ? _(sing) : _(plur)
      while in other languages there can be more variants (count == 0; more
      random-looking rules based on the historical pronunciation of the
      number).  Behind the scenes, the singular form is used to look up a
      family of translations and the plural form is ignored unless no
      translation is available.
      Define such a Q_ in gettext.h with the English semantics so C code can
      start using it to mark phrases with a count for translation.
      The name "Q_" is taken from subversion and stands for "quantity".
      Many projects just use ngettext directly without a wrapper analogous
      to _; we should not do so because git's gettext.h is meant not to
      conflict with system headers that might include libintl.h.
      Signed-off-by: default avatarJonathan Nieder <>
      Signed-off-by: default avatarJunio C Hamano <>
  6. 08 Mar, 2011 3 commits
    • Jonathan Nieder's avatar
      i18n: do not poison translations unless GIT_GETTEXT_POISON envvar is set · 30955229
      Jonathan Nieder authored
      Tweak the GETTEXT_POISON facility so it is activated at run time
      instead of compile time.  If the GIT_GETTEXT_POISON environment
      variable is set, _(msg) will result in gibberish as before; but if the
      GIT_GETTEXT_POISON variable is not set, it will return the message for
      human-readable output.  So the behavior of mistranslated and
      untranslated git can be compared without rebuilding git in between.
      For simplicity we always set the GIT_GETTEXT_POISON variable in tests.
      This does not affect builds without the GETTEXT_POISON compile-time
      option set, so non-i18n git will not be slowed down.
      Signed-off-by: default avatarJonathan Nieder <>
      Signed-off-by: default avatarJunio C Hamano <>
    • Ævar Arnfjörð Bjarmason's avatar
      i18n: add GETTEXT_POISON to simulate unfriendly translator · bb946bba
      Ævar Arnfjörð Bjarmason authored
      Add a new GETTEXT_POISON compile-time parameter to make _(msg) always
      return gibberish. So now you can run
      	make GETTEXT_POISON=YesPlease
      to get a copy of git that functions correctly (one hopes) but produces
      output that is in nobody's native language at all.
      This is a debugging aid for people who are working on the i18n part of
      the system, to make sure that they are not marking plumbing messages
      that should never be translated with _().
      As new strings get marked for translation, naturally a number of tests
      will be broken in this mode. Tests that depend on output from
      Porcelain will need to be marked with the new C_LOCALE_OUTPUT test
      prerequisite. Newly failing tests that do not depend on output from
      Porcelain would be bugs due to messages that should not have been
      marked for translation.
      Note that the string we're using ("# GETTEXT POISON #") intentionally
      starts the pound sign. Some of Git's tests such as rely on interactive editing with a fake
      editor, and will needlessly break if the message doesn't start with
      something the interactive editor considers a comment.
      A future patch will fix fix the underlying cause of that issue by
      adding "#" characters to the commit advice automatically.
      Signed-off-by: Ævar Arnfjörð Bjarmason's avatarÆvar Arnfjörð Bjarmason <>
      Signed-off-by: default avatarJonathan Nieder <>
      Signed-off-by: default avatarJunio C Hamano <>
    • Ævar Arnfjörð Bjarmason's avatar
      i18n: add no-op _() and N_() wrappers · 65784830
      Ævar Arnfjörð Bjarmason authored
      The _ function is for translating strings into the user's chosen
      language.  The N_ macro just marks translatable strings for the
      xgettext(1) tool without translating them; it is intended for use in
      contexts where a function call cannot be used.  So, for example:
      	fprintf(stderr, _("Expansion of alias '%s' failed; "
      		"'%s' is not a git command\n"),
      		cmd, argv[0]);
      	const char *unpack_plumbing_errors[NB_UNPACK_TREES_ERROR_TYPES] = {
      		N_("Entry '%s' would be overwritten by merge. Cannot merge."),
      Define such _ and N_ in a new gettext.h and include it in cache.h, so
      they can be used everywhere.  Each just returns its argument for now.
      _ is a function rather than a macro like N_ to avoid the temptation to
      use _("foo") as a string literal (which would be a compile-time error
      once _(s) expands to an expression for the translation of s).
      Signed-off-by: Ævar Arnfjörð Bjarmason's avatarÆvar Arnfjörð Bjarmason <>
      Signed-off-by: default avatarJonathan Nieder <>
      Signed-off-by: default avatarJunio C Hamano <>