git-commit-vandalism/compat/fsmonitor/fsm-settings-darwin.c
Eric DeCosta 8f44976882 fsmonitor: avoid socket location check if using hook
If monitoring is done via fsmonitor hook rather than IPC there is no
need to check if the location of the Unix Domain socket (UDS) file is
on a remote filesystem.

Signed-off-by: Eric DeCosta <edecosta@mathworks.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-10-05 11:05:23 -07:00

63 lines
1.8 KiB
C

#include "config.h"
#include "fsmonitor.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;
}