mirror of https://github.com/git/git.git
Remove support for v1 of the PCRE library
Remove support for using version 1 of the PCRE library. Its use has been discouraged by upstream for a long time, and it's in a bugfix-only state. Anyone who was relying on v1 in particular got a nudge to move to v2 ine6c531b808(Makefile: make USE_LIBPCRE=YesPlease mean v2, not v1, 2018-03-11), which was first released as part of v2.18.0. With this the LIBPCRE2 test prerequisites is redundant to PCRE. But I'm keeping it for self-documentation purposes, and to avoid conflict with other in-flight PCRE patches. I'm also not changing all of our own "pcre2" names to "pcre", i.e. the inverse of6d4b5747f0(grep: change internal *pcre* variable & function names to be *pcre1*, 2017-05-25). I don't see the point, and it makes the history/blame harder to read. Maybe if there's ever a PCRE v3... Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Ævar Arnfjörð Bjarmason
Junio C Hamano
parent
0205bb13d0
commit
7599730b7e
32
Makefile
32
Makefile
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@ -29,18 +29,11 @@ all::
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# Perl-compatible regular expressions instead of standard or extended
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# POSIX regular expressions.
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#
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# USE_LIBPCRE is a synonym for USE_LIBPCRE2, define USE_LIBPCRE1
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# instead if you'd like to use the legacy version 1 of the PCRE
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# library. Support for version 1 will likely be removed in some future
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# release of Git, as upstream has all but abandoned it.
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#
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# When using USE_LIBPCRE1, define NO_LIBPCRE1_JIT if you want to
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# disable JIT even if supported by your library.
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# Only libpcre version 2 is supported. USE_LIBPCRE2 is a synonym for
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# USE_LIBPCRE, support for the old USE_LIBPCRE1 has been removed.
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#
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# Define LIBPCREDIR=/foo/bar if your PCRE header and library files are
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# in /foo/bar/include and /foo/bar/lib directories. Which version of
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# PCRE this points to determined by the USE_LIBPCRE1 and USE_LIBPCRE2
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# variables.
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# in /foo/bar/include and /foo/bar/lib directories.
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#
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# Define HAVE_ALLOCA_H if you have working alloca(3) defined in that header.
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#
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@ -1359,26 +1352,17 @@ ifdef NO_LIBGEN_H
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COMPAT_OBJS += compat/basename.o
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endif
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ifdef USE_LIBPCRE1
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$(error The USE_LIBPCRE1 build option has been removed, use version 2 with USE_LIBPCRE)
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endif
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USE_LIBPCRE2 ?= $(USE_LIBPCRE)
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ifneq (,$(USE_LIBPCRE2))
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ifdef USE_LIBPCRE1
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$(error Only set USE_LIBPCRE2 (or its alias USE_LIBPCRE) or USE_LIBPCRE1, not both!)
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endif
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BASIC_CFLAGS += -DUSE_LIBPCRE2
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EXTLIBS += -lpcre2-8
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endif
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ifdef USE_LIBPCRE1
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BASIC_CFLAGS += -DUSE_LIBPCRE1
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EXTLIBS += -lpcre
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ifdef NO_LIBPCRE1_JIT
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BASIC_CFLAGS += -DNO_LIBPCRE1_JIT
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endif
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endif
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ifdef LIBPCREDIR
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BASIC_CFLAGS += -I$(LIBPCREDIR)/include
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EXTLIBS += -L$(LIBPCREDIR)/$(lib) $(CC_LD_DYNPATH)$(LIBPCREDIR)/$(lib)
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@ -2726,9 +2710,7 @@ GIT-BUILD-OPTIONS: FORCE
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@echo TAR=\''$(subst ','\'',$(subst ','\'',$(TAR)))'\' >>$@+
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@echo NO_CURL=\''$(subst ','\'',$(subst ','\'',$(NO_CURL)))'\' >>$@+
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@echo NO_EXPAT=\''$(subst ','\'',$(subst ','\'',$(NO_EXPAT)))'\' >>$@+
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@echo USE_LIBPCRE1=\''$(subst ','\'',$(subst ','\'',$(USE_LIBPCRE1)))'\' >>$@+
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@echo USE_LIBPCRE2=\''$(subst ','\'',$(subst ','\'',$(USE_LIBPCRE2)))'\' >>$@+
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@echo NO_LIBPCRE1_JIT=\''$(subst ','\'',$(subst ','\'',$(NO_LIBPCRE1_JIT)))'\' >>$@+
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@echo NO_PERL=\''$(subst ','\'',$(subst ','\'',$(NO_PERL)))'\' >>$@+
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@echo NO_PTHREADS=\''$(subst ','\'',$(subst ','\'',$(NO_PTHREADS)))'\' >>$@+
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@echo NO_PYTHON=\''$(subst ','\'',$(subst ','\'',$(NO_PYTHON)))'\' >>$@+
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51
configure.ac
51
configure.ac
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@ -252,16 +252,17 @@ GIT_PARSE_WITH([openssl]))
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# Define USE_LIBPCRE if you have and want to use libpcre. Various
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# commands such as log and grep offer runtime options to use
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# Perl-compatible regular expressions instead of standard or extended
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# POSIX regular expressions.
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#
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# USE_LIBPCRE is a synonym for USE_LIBPCRE2, define USE_LIBPCRE1
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# instead if you'd like to use the legacy version 1 of the PCRE
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# library. Support for version 1 will likely be removed in some future
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# release of Git, as upstream has all but abandoned it.
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# POSIX regular expressions. Only libpcre version 2 is supported.
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#
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# Define LIBPCREDIR=/foo/bar if your PCRE header and library files are in
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# /foo/bar/include and /foo/bar/lib directories.
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#
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AC_ARG_WITH(libpcre1,
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AS_HELP_STRING([--with-libpcre1],[DEPRECATED]),
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AC_MSG_ERROR([support for --with-libpcre1 has been removed. Use --with-libpcre2!])
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)
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AC_ARG_WITH(libpcre,
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AS_HELP_STRING([--with-libpcre],[synonym for --with-libpcre2]),
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if test "$withval" = "no"; then
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@ -277,22 +278,6 @@ AS_HELP_STRING([--with-libpcre],[synonym for --with-libpcre2]),
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GIT_CONF_SUBST([LIBPCREDIR])
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fi)
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AC_ARG_WITH(libpcre1,
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AS_HELP_STRING([--with-libpcre1],[support Perl-compatible regexes via libpcre1 (default is NO)])
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AS_HELP_STRING([], [ARG can be also prefix for libpcre library and headers]),
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if test "$withval" = "no"; then
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USE_LIBPCRE1=
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elif test "$withval" = "yes"; then
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USE_LIBPCRE1=YesPlease
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else
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USE_LIBPCRE1=YesPlease
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LIBPCREDIR=$withval
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AC_MSG_NOTICE([Setting LIBPCREDIR to $LIBPCREDIR])
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dnl USE_LIBPCRE1 can still be modified below, so don't substitute
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dnl it yet.
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GIT_CONF_SUBST([LIBPCREDIR])
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fi)
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AC_ARG_WITH(libpcre2,
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AS_HELP_STRING([--with-libpcre2],[support Perl-compatible regexes via libpcre2 (default is NO)])
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AS_HELP_STRING([], [ARG can be also prefix for libpcre library and headers]),
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@ -300,10 +285,6 @@ AS_HELP_STRING([], [ARG can be also prefix for libpcre library and hea
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AC_MSG_ERROR([Only supply one of --with-libpcre or its synonym --with-libpcre2!])
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fi
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if test -n "$USE_LIBPCRE1"; then
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AC_MSG_ERROR([Only supply one of --with-libpcre1 or --with-libpcre2!])
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fi
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if test "$withval" = "no"; then
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USE_LIBPCRE2=
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elif test "$withval" = "yes"; then
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@ -554,25 +535,9 @@ GIT_CONF_SUBST([NEEDS_SSL_WITH_CRYPTO])
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GIT_CONF_SUBST([NO_OPENSSL])
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#
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# Handle the USE_LIBPCRE1 and USE_LIBPCRE2 options potentially set
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# above.
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# Handle the USE_LIBPCRE options potentially set above.
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#
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if test -n "$USE_LIBPCRE1"; then
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GIT_STASH_FLAGS($LIBPCREDIR)
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AC_CHECK_LIB([pcre], [pcre_version],
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[USE_LIBPCRE1=YesPlease],
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[USE_LIBPCRE1=])
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GIT_UNSTASH_FLAGS($LIBPCREDIR)
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GIT_CONF_SUBST([USE_LIBPCRE1])
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fi
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if test -n "$USE_LIBPCRE2"; then
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GIT_STASH_FLAGS($LIBPCREDIR)
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@ -910,9 +910,7 @@ set(PYTHON_PATH /usr/bin/python)
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set(TAR tar)
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set(NO_CURL )
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set(NO_EXPAT )
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set(USE_LIBPCRE1 )
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set(USE_LIBPCRE2 )
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set(NO_LIBPCRE1_JIT )
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set(NO_PERL )
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set(NO_PTHREADS )
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set(NO_PYTHON )
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@ -949,8 +947,6 @@ file(APPEND ${CMAKE_BINARY_DIR}/GIT-BUILD-OPTIONS "PYTHON_PATH='${PYTHON_PATH}'\
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file(APPEND ${CMAKE_BINARY_DIR}/GIT-BUILD-OPTIONS "TAR='${TAR}'\n")
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file(APPEND ${CMAKE_BINARY_DIR}/GIT-BUILD-OPTIONS "NO_CURL='${NO_CURL}'\n")
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file(APPEND ${CMAKE_BINARY_DIR}/GIT-BUILD-OPTIONS "NO_EXPAT='${NO_EXPAT}'\n")
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file(APPEND ${CMAKE_BINARY_DIR}/GIT-BUILD-OPTIONS "USE_LIBPCRE1='${USE_LIBPCRE1}'\n")
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file(APPEND ${CMAKE_BINARY_DIR}/GIT-BUILD-OPTIONS "NO_LIBPCRE1_JIT='${NO_LIBPCRE1_JIT}'\n")
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file(APPEND ${CMAKE_BINARY_DIR}/GIT-BUILD-OPTIONS "NO_PERL='${NO_PERL}'\n")
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file(APPEND ${CMAKE_BINARY_DIR}/GIT-BUILD-OPTIONS "NO_PTHREADS='${NO_PTHREADS}'\n")
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file(APPEND ${CMAKE_BINARY_DIR}/GIT-BUILD-OPTIONS "NO_UNIX_SOCKETS='${NO_UNIX_SOCKETS}'\n")
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119
grep.c
119
grep.c
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@ -166,11 +166,6 @@ void grep_init(struct grep_opt *opt, struct repository *repo, const char *prefix
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pcre2_malloc, pcre2_free, NULL);
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#endif
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#ifdef USE_LIBPCRE1
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pcre_malloc = malloc;
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pcre_free = free;
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#endif
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*opt = grep_defaults;
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opt->repo = repo;
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@ -223,17 +218,7 @@ static void grep_set_pattern_type_option(enum grep_pattern_type pattern_type, st
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break;
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case GREP_PATTERN_TYPE_PCRE:
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#ifdef USE_LIBPCRE2
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opt->pcre2 = 1;
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#else
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/*
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* It's important that pcre1 always be assigned to
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* even when there's no USE_LIBPCRE* defined. We still
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* call the PCRE stub function, it just dies with
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* "cannot use Perl-compatible regexes[...]".
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*/
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opt->pcre1 = 1;
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#endif
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break;
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}
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}
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@ -377,92 +362,6 @@ static int is_fixed(const char *s, size_t len)
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return 1;
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}
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#ifdef USE_LIBPCRE1
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static void compile_pcre1_regexp(struct grep_pat *p, const struct grep_opt *opt)
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{
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const char *error;
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int erroffset;
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int options = PCRE_MULTILINE;
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int study_options = 0;
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if (opt->ignore_case) {
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if (!opt->ignore_locale && has_non_ascii(p->pattern))
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p->pcre1_tables = pcre_maketables();
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options |= PCRE_CASELESS;
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}
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if (!opt->ignore_locale && is_utf8_locale() && has_non_ascii(p->pattern))
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options |= PCRE_UTF8;
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p->pcre1_regexp = pcre_compile(p->pattern, options, &error, &erroffset,
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p->pcre1_tables);
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if (!p->pcre1_regexp)
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compile_regexp_failed(p, error);
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#if defined(PCRE_CONFIG_JIT) && !defined(NO_LIBPCRE1_JIT)
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pcre_config(PCRE_CONFIG_JIT, &p->pcre1_jit_on);
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if (opt->debug)
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fprintf(stderr, "pcre1_jit_on=%d\n", p->pcre1_jit_on);
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if (p->pcre1_jit_on)
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study_options = PCRE_STUDY_JIT_COMPILE;
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#endif
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p->pcre1_extra_info = pcre_study(p->pcre1_regexp, study_options, &error);
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if (!p->pcre1_extra_info && error)
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die("%s", error);
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}
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static int pcre1match(struct grep_pat *p, const char *line, const char *eol,
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regmatch_t *match, int eflags)
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{
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int ovector[30], ret, flags = PCRE_NO_UTF8_CHECK;
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if (eflags & REG_NOTBOL)
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flags |= PCRE_NOTBOL;
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ret = pcre_exec(p->pcre1_regexp, p->pcre1_extra_info, line,
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eol - line, 0, flags, ovector,
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ARRAY_SIZE(ovector));
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if (ret < 0 && ret != PCRE_ERROR_NOMATCH)
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die("pcre_exec failed with error code %d", ret);
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if (ret > 0) {
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ret = 0;
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match->rm_so = ovector[0];
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match->rm_eo = ovector[1];
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}
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return ret;
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}
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static void free_pcre1_regexp(struct grep_pat *p)
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{
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pcre_free(p->pcre1_regexp);
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#ifdef PCRE_CONFIG_JIT
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if (p->pcre1_jit_on)
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pcre_free_study(p->pcre1_extra_info);
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else
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#endif
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pcre_free(p->pcre1_extra_info);
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pcre_free((void *)p->pcre1_tables);
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}
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#else /* !USE_LIBPCRE1 */
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static void compile_pcre1_regexp(struct grep_pat *p, const struct grep_opt *opt)
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{
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die("cannot use Perl-compatible regexes when not compiled with USE_LIBPCRE");
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}
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static int pcre1match(struct grep_pat *p, const char *line, const char *eol,
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regmatch_t *match, int eflags)
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{
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return 1;
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}
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static void free_pcre1_regexp(struct grep_pat *p)
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{
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}
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#endif /* !USE_LIBPCRE1 */
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#ifdef USE_LIBPCRE2
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static void compile_pcre2_pattern(struct grep_pat *p, const struct grep_opt *opt)
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{
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@ -588,11 +487,6 @@ static void free_pcre2_pattern(struct grep_pat *p)
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#else /* !USE_LIBPCRE2 */
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static void compile_pcre2_pattern(struct grep_pat *p, const struct grep_opt *opt)
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{
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/*
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* Unreachable until USE_LIBPCRE2 becomes synonymous with
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* USE_LIBPCRE. See the sibling comment in
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* grep_set_pattern_type_option().
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*/
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die("cannot use Perl-compatible regexes when not compiled with USE_LIBPCRE");
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}
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@ -693,11 +587,6 @@ static void compile_regexp(struct grep_pat *p, struct grep_opt *opt)
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return;
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}
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if (opt->pcre1) {
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compile_pcre1_regexp(p, opt);
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return;
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}
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|
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if (p->ignore_case)
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regflags |= REG_ICASE;
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if (opt->extended_regexp_option)
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@ -1051,9 +940,7 @@ void free_grep_patterns(struct grep_opt *opt)
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case GREP_PATTERN: /* atom */
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case GREP_PATTERN_HEAD:
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case GREP_PATTERN_BODY:
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if (p->pcre1_regexp)
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free_pcre1_regexp(p);
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else if (p->pcre2_pattern)
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if (p->pcre2_pattern)
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free_pcre2_pattern(p);
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else
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regfree(&p->regexp);
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|
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@ -1116,9 +1003,7 @@ static int patmatch(struct grep_pat *p, char *line, char *eol,
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{
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int hit;
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|
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if (p->pcre1_regexp)
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hit = !pcre1match(p, line, eol, match, eflags);
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else if (p->pcre2_pattern)
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if (p->pcre2_pattern)
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hit = !pcre2match(p, line, eol, match, eflags);
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else
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hit = !regexec_buf(&p->regexp, line, eol - line, 1, match,
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|
|
|
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14
grep.h
14
grep.h
|
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@ -1,15 +1,6 @@
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#ifndef GREP_H
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#define GREP_H
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#include "color.h"
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#ifdef USE_LIBPCRE1
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#include <pcre.h>
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#ifndef PCRE_NO_UTF8_CHECK
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#define PCRE_NO_UTF8_CHECK 0
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#endif
|
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#else
|
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typedef int pcre;
|
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typedef int pcre_extra;
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#endif
|
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#ifdef USE_LIBPCRE2
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#define PCRE2_CODE_UNIT_WIDTH 8
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#include <pcre2.h>
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|
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@ -71,10 +62,6 @@ struct grep_pat {
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size_t patternlen;
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enum grep_header_field field;
|
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regex_t regexp;
|
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pcre *pcre1_regexp;
|
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pcre_extra *pcre1_extra_info;
|
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const unsigned char *pcre1_tables;
|
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int pcre1_jit_on;
|
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pcre2_code *pcre2_pattern;
|
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pcre2_match_data *pcre2_match_data;
|
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pcre2_compile_context *pcre2_compile_context;
|
||||
|
|
@ -144,7 +131,6 @@ struct grep_opt {
|
|||
int allow_textconv;
|
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int extended;
|
||||
int use_reflog_filter;
|
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int pcre1;
|
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int pcre2;
|
||||
int relative;
|
||||
int pathname;
|
||||
|
|
|
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12
t/README
12
t/README
|
|
@ -1104,18 +1104,6 @@ use these, and "test_set_prereq" for how to define your own.
|
|||
Git was compiled with support for PCRE. Wrap any tests
|
||||
that use git-grep --perl-regexp or git-grep -P in these.
|
||||
|
||||
- LIBPCRE1
|
||||
|
||||
Git was compiled with PCRE v1 support via
|
||||
USE_LIBPCRE1=YesPlease. Wrap any PCRE using tests that for some
|
||||
reason need v1 of the PCRE library instead of v2 in these.
|
||||
|
||||
- LIBPCRE2
|
||||
|
||||
Git was compiled with PCRE v2 support via
|
||||
USE_LIBPCRE2=YesPlease. Wrap any PCRE using tests that for some
|
||||
reason need v2 of the PCRE library instead of v1 in these.
|
||||
|
||||
- CASE_INSENSITIVE_FS
|
||||
|
||||
Test is run on a case insensitive file system.
|
||||
|
|
|
|||
|
|
@ -1524,8 +1524,7 @@ esac
|
|||
test -z "$NO_PERL" && test_set_prereq PERL
|
||||
test -z "$NO_PTHREADS" && test_set_prereq PTHREADS
|
||||
test -z "$NO_PYTHON" && test_set_prereq PYTHON
|
||||
test -n "$USE_LIBPCRE1$USE_LIBPCRE2" && test_set_prereq PCRE
|
||||
test -n "$USE_LIBPCRE1" && test_set_prereq LIBPCRE1
|
||||
test -n "$USE_LIBPCRE2" && test_set_prereq PCRE
|
||||
test -n "$USE_LIBPCRE2" && test_set_prereq LIBPCRE2
|
||||
test -z "$NO_GETTEXT" && test_set_prereq GETTEXT
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue