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split the contents of fs.isfile and fs.isdirectory into its own function

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and add more docs
This commit is contained in:
Jeremy Baxter 2023-12-24 06:36:06 +13:00
parent fdcb8f794a
commit 2a75eab074
1 changed files with 30 additions and 20 deletions
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50
lfs.c
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@ -113,9 +113,35 @@ fs_exists(lua_State *L)
return 1;
}
static int
ismode(lua_State *L, mode_t mode)
{
struct stat sb;
const char *path;
path = luaL_checkstring(L, 1);
if (stat(path, &sb) != -1) {
lua_pushboolean(L, sb.st_mode & mode);
return 1;
}
switch (errno) {
case ENOTDIR:
case ENOENT:
lua_pushboolean(L, 0);
return 1;
break;
default:
return lfail(L);
}
}
/***
* Returns true if the given path specifies a
* directory, or false if it does not.
* Will return false if the given path does not
* specify an existing directory entry at all.
*
* On error returns nil, an error message and a
* platform-dependent error code.
@ -130,21 +156,14 @@ end
static int
fs_isdirectory(lua_State *L)
{
struct stat sb;
const char *path;
path = luaL_checkstring(L, 1);
if (stat(path, &sb) == -1)
return lfail(L);
lua_pushboolean(L, sb.st_mode & S_IFDIR);
return 1;
return ismode(L, S_IFDIR);
}
/***
* Returns true if the given path specifies a file,
* or false if it does not.
* Will return false if the given path does not
* specify an existing directory entry at all.
*
* On error returns nil, an error message and a
* platform-dependent error code.
@ -159,16 +178,7 @@ end
static int
fs_isfile(lua_State *L)
{
struct stat sb;
const char *path;
path = luaL_checkstring(L, 1);
if (stat(path, &sb) == -1)
return lfail(L);
lua_pushboolean(L, sb.st_mode & S_IFREG);
return 1;
return ismode(L, S_IFREG);
}
/*