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emacsclient: adjust to new config file location

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* lib-src/emacsclient.c (open_config): New arg XDG, to respect
XDG_CONFIG_HOME, consistently with Emacs proper.  Caller changed.
Use XDG convention if available, falling back on the old names
if not.
This commit is contained in:
Paul Eggert 2019-08-30 00:24:07 -07:00
parent a4144af909
commit 44f15b63db
1 changed files with 31 additions and 14 deletions
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45
lib-src/emacsclient.c
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@ -914,22 +914,38 @@ initialize_sockets (void)
#endif /* WINDOWSNT */
/* If the home directory is HOME, return the configuration file with
basename CONFIG_FILE. Fail if there is no home directory or if the
configuration file could not be opened. */
/* If the home directory is HOME, and XDG_CONFIG_HOME's value is XDG,
return the configuration file with basename CONFIG_FILE. Fail if
the configuration file could not be opened. */
static FILE *
open_config (char const *home, char const *config_file)
open_config (char const *home, char const *xdg, char const *config_file)
{
if (!home)
return NULL;
ptrdiff_t homelen = strlen (home);
static char const emacs_d_server[] = "/.emacs.d/server/";
ptrdiff_t suffixsize = sizeof emacs_d_server + strlen (config_file);
char *configname = xmalloc (homelen + suffixsize);
strcpy (stpcpy (stpcpy (configname, home), emacs_d_server), config_file);
ptrdiff_t xdgsubdirsize = xdg ? strlen (xdg) + sizeof "/emacs/server/" : 0;
ptrdiff_t homesuffixsizemax = max (sizeof "/.config/emacs/server/",
sizeof "/.emacs.d/server/");
ptrdiff_t homesubdirsizemax = home ? strlen (home) + homesuffixsizemax : 0;
char *configname = xmalloc (max (xdgsubdirsize, homesubdirsizemax)
+ strlen (config_file));
FILE *config;
if (xdg || home)
{
strcpy ((xdg
? stpcpy (stpcpy (configname, xdg), "/emacs/server/")
: stpcpy (stpcpy (configname, home), "/.config/emacs/server/")),
config_file);
config = fopen (configname, "rb");
}
else
config = NULL;
if (! config && home)
{
strcpy (stpcpy (stpcpy (configname, home), "/.emacs.d/server/"),
config_file);
config = fopen (configname, "rb");
}
FILE *config = fopen (configname, "rb");
free (configname);
return config;
}
@ -949,10 +965,11 @@ get_server_config (const char *config_file, struct sockaddr_in *server,
config = fopen (config_file, "rb");
else
{
config = open_config (egetenv ("HOME"), config_file);
char const *xdg = egetenv ("XDG_CONFIG_HOME");
config = open_config (egetenv ("HOME"), xdg, config_file);
#ifdef WINDOWSNT
if (!config)
config = open_config (egetenv ("APPDATA"), config_file);
config = open_config (egetenv ("APPDATA"), xdg, config_file);
#endif
}