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#include "git-compat-util.h"
#include "config.h"
#include "fsmonitor-ll.h"
#include "fsmonitor-ipc.h"
#include "fsmonitor-settings.h"
#include "fsmonitor-path-utils.h"
/*
* For the builtin FSMonitor, we create the Unix domain socket for the
* IPC in the .git directory. If the working directory is remote,
* then the socket will be created on the remote file system. This
* can fail if the remote file system does not support UDS file types
* (e.g. smbfs to a Windows server) or if the remote kernel does not
* allow a non-local process to bind() the socket. (These problems
* could be fixed by moving the UDS out of the .git directory and to a
* well-known local directory on the client machine, but care should
* be taken to ensure that $HOME is actually local and not a managed
* file share.)
*
* FAT32 and NTFS working directories are problematic too.
*
* The builtin FSMonitor uses a Unix domain socket in the .git
* directory for IPC. These Windows drive formats do not support
* Unix domain sockets, so mark them as incompatible for the daemon.
*
*/
static enum fsmonitor_reason check_uds_volume(struct repository *r)
{
struct fs_info fs;
const char *ipc_path = fsmonitor_ipc__get_path(r);
struct strbuf path = STRBUF_INIT;
strbuf_add(&path, ipc_path, strlen(ipc_path));
if (fsmonitor__get_fs_info(dirname(path.buf), &fs) == -1) {
strbuf_release(&path);
return FSMONITOR_REASON_ERROR;
}
strbuf_release(&path);
if (fs.is_remote ||
!strcmp(fs.typename, "msdos") ||
!strcmp(fs.typename, "ntfs")) {
free(fs.typename);
return FSMONITOR_REASON_NOSOCKETS;
}
free(fs.typename);
return FSMONITOR_REASON_OK;
}
enum fsmonitor_reason fsm_os__incompatible(struct repository *r, int ipc)
{
enum fsmonitor_reason reason;
if (ipc) {
reason = check_uds_volume(r);
if (reason != FSMONITOR_REASON_OK)
return reason;
}
return FSMONITOR_REASON_OK;
}
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