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/* Paths as people write them.
*
* `~` is a shell thing: by the time a path reaches us from a config or layout
* file no shell has touched it, so `cwd="~/dev/api"` was being handed to
* chdir() literally, failing, and leaving the pane in whatever directory the
* session happened to be in. Silently \u2014 which is the worst way for a path to
* be wrong, because the pane still starts and still works.
*/
#include "sl0ppty.h"
#include <sys/stat.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
const char *path_expand(const char *path, char *buf, size_t cap) {
if (!path) return NULL;
/* `~` and `~/...` only. `~user` needs the password database and is not
* worth linking it in for; it is returned unchanged, which is exactly what
* it did before, rather than being half-expanded into something wrong. */
if (path[0] != '~' || (path[1] && path[1] != '/')) return path;
const char *home = getenv("HOME");
if (!home || !*home) return path;
snprintf(buf, cap, "%s%s", home, path + 1);
return buf;
}
/* Create a directory and everything above it. `mkdir` of one level is enough
* on a machine where ~/.config already exists, which is most of them and not
* all of them -- a fresh container has neither, and "could not write your
* config" is a poor first impression. Existing directories are not an error. */
bool path_mkdirs(const char *dir) {
if (!dir || !*dir) return false;
char buf[1024];
snprintf(buf, sizeof buf, "%s", dir);
for (char *p = buf + 1; *p; p++) {
if (*p != '/') continue;
*p = 0;
if (mkdir(buf, 0700) != 0 && errno != EEXIST) return false;
*p = '/';
}
return mkdir(buf, 0700) == 0 || errno == EEXIST;
}
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