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help (Windows): Display HTML in default browser using Windows' shell API

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The system's default browser for displaying HTML help pages is now used
directly on Windows, instead of launching git-web--browser, which
requires a Unix shell.  Avoiding MSYS' bash when possible is good
because it avoids potential path translation issues.  In this case it is
not too hard to avoid launching a shell, so let's avoid it.

The Windows-specific code is implemented in compat/mingw.c to avoid
platform-specific code in the main code base.  On Windows, open_html is
provided as a define.  If open_html is not defined, git-web--browse is
used.  This approach avoids platform-specific ifdefs by using
per-function ifdefs.  The "ifndef open_html" together with the
introductory comment should sufficiently warn developers, so that they
hopefully will not break this mechanism.

Signed-off-by: Steffen Prohaska <prohaska@zib.de>
Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Steffen Prohaska
2008-07-13 22:31:20 +02:00
committed by Junio C Hamano
parent 868da8d5e3
commit 4804aabcdb
3 changed files with 38 additions and 1 deletions
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22
compat/mingw.c
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@ -1017,3 +1017,25 @@ sig_handler_t mingw_signal(int sig, sig_handler_t handler)
timer_fn = handler;
return old;
}
static const char *make_backslash_path(const char *path)
{
static char buf[PATH_MAX + 1];
char *c;
if (strlcpy(buf, path, PATH_MAX) >= PATH_MAX)
die("Too long path: %.*s", 60, path);
for (c = buf; *c; c++) {
if (*c == '/')
*c = '\\';
}
return buf;
}
void mingw_open_html(const char *unixpath)
{
const char *htmlpath = make_backslash_path(unixpath);
printf("Launching default browser to display HTML ...\n");
ShellExecute(NULL, "open", htmlpath, NULL, "\\", 0);
}