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Query the cygdrive prefix only if the cygwin mount command is available.

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git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/branches/BRANCH_1_6_X@33026 a592a061-630c-0410-9148-cb99ea01b6c8
This commit is contained in:
Enrico Forestieri 2010-01-14 13:13:05 +00:00
parent 73804b56d5
commit 772a032cd0
1 changed files with 41 additions and 34 deletions
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75
src/support/os_win32.cpp
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@ -154,40 +154,47 @@ void init(int /* argc */, char * argv[])
* lyx is invoked as a parameter of hidecmd.exe.
*/
// If Cygwin is detected, query the cygdrive prefix
HKEY regKey;
LONG retVal;
// Check for Cygwin 1.7 or later
retVal = RegOpenKeyEx(HKEY_LOCAL_MACHINE,
"Software\\Cygwin\\setup",
0, KEY_QUERY_VALUE, &regKey);
if (retVal != ERROR_SUCCESS)
retVal = RegOpenKeyEx(HKEY_CURRENT_USER,
"Software\\Cygwin\\setup",
0, KEY_QUERY_VALUE, &regKey);
// Check for older Cygwin versions
if (retVal != ERROR_SUCCESS)
retVal = RegOpenKeyEx(HKEY_LOCAL_MACHINE,
"Software\\Cygnus Solutions\\Cygwin\\mounts v2",
0, KEY_QUERY_VALUE, &regKey);
if (retVal != ERROR_SUCCESS)
retVal = RegOpenKeyEx(HKEY_CURRENT_USER,
"Software\\Cygnus Solutions\\Cygwin\\mounts v2",
0, KEY_QUERY_VALUE, &regKey);
if (retVal == ERROR_SUCCESS) {
RegCloseKey(regKey);
cmd_ret const p = runCommand("mount --show-cygdrive-prefix");
// The output of the mount command is as follows:
// Prefix Type Flags
// /cygdrive system binmode
// So, we use the inner split to pass the second line to the
// outer split which sets cygdrive with its contents until
// the first blank, discarding the unneeded return value.
if (p.first != -1 && prefixIs(p.second, "Prefix"))
split(split(p.second, '\n'), cygdrive, ' ');
// If Cygwin is detected, query the cygdrive prefix.
// The cygdrive prefix is needed for translating windows style paths
// to posix style paths in LaTeX files when the Cygwin teTeX is used.
int i;
HKEY hkey;
char buf[MAX_PATH];
DWORD bufsize = sizeof(buf);
LONG retval = ERROR_FILE_NOT_FOUND;
HKEY const mainkey[2] = { HKEY_LOCAL_MACHINE, HKEY_CURRENT_USER };
char const * const subkey[2] = {
"Software\\Cygwin\\setup", // Cygwin 1.7
"Software\\Cygnus Solutions\\Cygwin\\mounts v2\\/" // Prev. ver.
};
char const * const valuename[2] = {
"rootdir", // Cygwin 1.7 or later
"native" // Previous versions
};
// Check for newer Cygwin versions first, then older ones
for (i = 0; i < 2 && retval != ERROR_SUCCESS; ++i) {
for (int k = 0; k < 2 && retval != ERROR_SUCCESS; ++k)
retval = RegOpenKey(mainkey[k], subkey[i], &hkey);
}
if (retval == ERROR_SUCCESS) {
// Query the Cygwin root directory
retval = RegQueryValueEx(hkey, valuename[i - 1],
NULL, NULL, (LPBYTE) buf, &bufsize);
RegCloseKey(hkey);
string const mount = string(buf) + "\\bin\\mount.exe";
if (retval == ERROR_SUCCESS && FileName(mount).exists()) {
cmd_ret const p =
runCommand(mount + " --show-cygdrive-prefix");
// The output of the mount command is as follows:
// Prefix Type Flags
// /cygdrive system binmode
// So, we use the inner split to pass the second line
// to the outer split which sets cygdrive with its
// contents until the first blank, discarding the
// unneeded return value.
if (p.first != -1 && prefixIs(p.second, "Prefix"))
split(split(p.second, '\n'), cygdrive, ' ');
}
}
// Catch shutdown events.