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help: use HTML as the default help format on Windows 

When 'git help $cmd' is run without a format option (e.g. -w), the
'man' format is always used. On some platforms, however, manual page
viewers are not often available.

Introduce DEFAULT_HELP_FORMAT make variable in order to allow the
default format configurable at compile time, and set it to HTML when
compiling on Windows (but not Cygwin).

Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Vincent van Ravesteijn <vfr@lyx.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Vincent van Ravesteijn 2012-06-06 20:28:16 +00:00 committed by Junio C Hamano
parent befc5ed379
commit 1cc8af044c
2 changed files with 16 additions and 1 deletions
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9
Makefile
View File

@ -296,6 +296,10 @@ all::
# the diff algorithm. It gives a nice speedup if your processor has
# fast unaligned word loads. Does NOT work on big-endian systems!
# Enabled by default on x86_64.
#
# Define DEFAULT_HELP_FORMAT to "man", "info" or "html"
# (defaults to "man") if you want to have a different default when
# "git help" is called without a parameter specifying the format.
GIT-VERSION-FILE: FORCE
@$(SHELL_PATH) ./GIT-VERSION-GEN
@ -1236,6 +1240,7 @@ ifeq ($(uname_S),Windows)
BLK_SHA1 = YesPlease
NO_POSIX_GOODIES = UnfortunatelyYes
NATIVE_CRLF = YesPlease
DEFAULT_HELP_FORMAT = html
CC = compat/vcbuild/scripts/clink.pl
AR = compat/vcbuild/scripts/lib.pl
@ -1915,6 +1920,10 @@ SHELL_PATH_CQ_SQ = $(subst ','\'',$(SHELL_PATH_CQ))
BASIC_CFLAGS += -DSHELL_PATH='$(SHELL_PATH_CQ_SQ)'
endif
ifdef DEFAULT_HELP_FORMAT
BASIC_CFLAGS += -DDEFAULT_HELP_FORMAT='"$(DEFAULT_HELP_FORMAT)"'
endif
ALL_CFLAGS += $(BASIC_CFLAGS)
ALL_LDFLAGS += $(BASIC_LDFLAGS)

8
builtin/help.c
View File

@ -12,6 +12,10 @@
#include "column.h"
#include "help.h"
#ifndef DEFAULT_HELP_FORMAT
#define DEFAULT_HELP_FORMAT "man"
#endif
static struct man_viewer_list {
struct man_viewer_list *next;
char name[FLEX_ARRAY];
@ -445,7 +449,9 @@ int cmd_help(int argc, const char **argv, const char *prefix)
setup_git_directory_gently(&nongit);
git_config(git_help_config, NULL);
if (parsed_help_format != HELP_FORMAT_NONE)
if (parsed_help_format == HELP_FORMAT_NONE)
help_format = parse_help_format(DEFAULT_HELP_FORMAT);
else
help_format = parsed_help_format;
alias = alias_lookup(argv[0]);