int
prompt_is_single_line(void)
{
int homegrown_redisplay= FALSE;
int force_homegrown_redisplay = FALSE;
int retval;
#ifndef SPY_ON_READLINE
# define _rl_horizontal_scroll_mode FALSE
# define rl_variable_value(s) "off"
#else
# ifndef HAVE_RL_VARIABLE_VALUE
# define rl_variable_value(s) "off"
# endif
#endif
#ifdef HOMEGROWN_REDISPLAY
homegrown_redisplay=TRUE;
#endif
#ifdef DEBUG
force_homegrown_redisplay = debug & FORCE_HOMEGROWN_REDISPLAY;
#endif
retval = _rl_horizontal_scroll_mode ||
strncmp(rl_variable_value("horizontal-scroll-mode"),"on",3) == 0 ||
homegrown_redisplay ||
force_homegrown_redisplay;
DPRINTF1(DEBUG_READLINE, "prompt is %s-line", (retval ? "single" : "multi"));
return retval;
}
//------------------------------------------------------------------------------
void save_history()
{
int max_history;
char buffer[1024];
const char* c;
if (get_clink_setting_int("persist_history") == 0)
{
return;
}
get_history_file_name(buffer, sizeof(buffer));
// Get max history size.
c = rl_variable_value("history-size");
max_history = (c != NULL) ? atoi(c) : 1000;
// Write new history to the file, and truncate to our maximum.
if (append_history(g_new_history_count, buffer) != 0)
{
write_history(buffer);
}
history_truncate_file(buffer, max_history);
}
//------------------------------------------------------------------------------
static int get_rl_variable(lua_State* state)
{
const char* string;
const char* rl_cvar;
// Check we've got at least one string argument.
if (lua_gettop(state) == 0 || !lua_isstring(state, 1))
{
return 0;
}
string = lua_tostring(state, 1);
rl_cvar = rl_variable_value(string);
if (rl_cvar == NULL)
{
return 0;
}
lua_pushstring(state, rl_cvar);
return 1;
}
char *
complete_dest_paths_generator (const char *text, int state)
{
#ifdef HAVE_LIBREADLINE
static size_t len, index;
static struct word *words = NULL;
static size_t nr_words = 0;
if (!state) {
char **strs;
len = strlen (text);
index = 0;
if (words) free_words (words, nr_words);
words = NULL;
nr_words = 0;
guestfs_push_error_handler (g, NULL, NULL);
/* Silently do nothing if an allocation fails */
#define APPEND_STRS_AND_FREE \
do { \
if (strs) { \
size_t i; \
size_t n = count_strings (strs); \
\
if ( n > 0 && ! xalloc_oversized (nr_words + n, sizeof (struct word))) { \
struct word *w; \
w = realloc (words, sizeof (struct word) * (nr_words + n)); \
\
if (w == NULL) { \
free_words (words, nr_words); \
words = NULL; \
nr_words = 0; \
} else { \
words = w; \
for (i = 0; i < n; ++i) { \
words[nr_words].name = strs[i]; \
words[nr_words].is_dir = 0; \
nr_words++; \
} \
} \
} \
free (strs); \
} \
} while (0)
/* Is it a device? */
if (len < 5 || STREQLEN (text, "/dev/", 5)) {
/* Get a list of everything that can possibly begin with /dev/ */
strs = guestfs_list_devices (g);
APPEND_STRS_AND_FREE;
strs = guestfs_list_partitions (g);
APPEND_STRS_AND_FREE;
strs = guestfs_lvs (g);
APPEND_STRS_AND_FREE;
strs = guestfs_list_dm_devices (g);
APPEND_STRS_AND_FREE;
strs = guestfs_list_md_devices (g);
APPEND_STRS_AND_FREE;
}
if (len < 1 || text[0] == '/') {
/* If we've got a partial path already, we need to list everything
* in that directory, otherwise list everything in /
*/
char *p, *dir;
struct guestfs_dirent_list *dirents;
p = strrchr (text, '/');
dir = p && p > text ? strndup (text, p - text) : strdup ("/");
if (dir) {
dirents = guestfs_readdir (g, dir);
/* Prepend directory to names before adding them to the list
* of words.
*/
if (dirents) {
size_t i;
for (i = 0; i < dirents->len; ++i) {
int err;
if (STRNEQ (dirents->val[i].name, ".") &&
STRNEQ (dirents->val[i].name, "..")) {
if (STREQ (dir, "/"))
err = asprintf (&p, "/%s", dirents->val[i].name);
else
err = asprintf (&p, "%s/%s", dir, dirents->val[i].name);
if (err >= 0) {
if (!xalloc_oversized (nr_words+1, sizeof (struct word))) {
struct word *w;
w = realloc (words, sizeof (struct word) * (nr_words+1));
if (w == NULL) {
free_words (words, nr_words);
words = NULL;
nr_words = 0;
}
else {
words = w;
words[nr_words].name = p;
words[nr_words].is_dir = dirents->val[i].ftyp == 'd';
nr_words++;
}
}
}
}
}
guestfs_free_dirent_list (dirents);
}
}
}
/* else ... In theory we could complete other things here such as VG
* names. At the moment we don't do that.
*/
guestfs_pop_error_handler (g);
}
/* This inhibits ordinary (local filename) completion. */
rl_attempted_completion_over = 1;
/* Sort the words so the list is stable over multiple calls. */
if (words)
qsort (words, nr_words, sizeof (struct word), compare_words);
/* Complete the string. */
while (index < nr_words) {
struct word *word;
word = &words[index];
index++;
/* Whether we should match case insensitively here or not is
* determined by the value of the completion-ignore-case readline
* variable. Default to case insensitive. (See: RHBZ#582993).
*/
char *cic_var = rl_variable_value ("completion-ignore-case");
int cic = 1;
if (cic_var && STREQ (cic_var, "off"))
cic = 0;
int matches =
cic ? STRCASEEQLEN (word->name, text, len)
: STREQLEN (word->name, text, len);
if (matches) {
if (word->is_dir)
rl_completion_append_character = '/';
return strdup (word->name);
}
}
#endif /* HAVE_LIBREADLINE */
return NULL;
}
