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Extend GetZipPaths to accept an optional prefix (#320)

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Paul Kulchenko 2021-11-12 15:28:05 -08:00 • committed by GitHub
parent 7fe9e70117
commit 8f05990d5a
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2 changed files with 9 additions and 5 deletions
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5
tool/net/help.txt
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@ -746,9 +746,10 @@ FUNCTIONS
minor (mm), and patch (pp) versions encoded. The version value 1.4
would be represented as 0x010400.
GetZipPaths() → {path:str,...}
GetZipPaths([prefix:str]) → {path:str,...}
Returns paths of all assets in the zip central directory, prefixed
by a slash.
by a slash. If prefix parameter is provided, then only paths that
start with the prefix (case sensitive) are returned.
HasParam(name:str) → bool
Returns true if parameter with name was supplied in either the

5
tool/net/redbean.c
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@ -5014,7 +5014,8 @@ static int LuaIsHiddenPath(lua_State *L) {
static int LuaGetZipPaths(lua_State *L) {
char *path;
uint8_t *zcf;
size_t i, n, pathlen;
size_t i, n, pathlen, prefixlen;
char *prefix = luaL_optlstring(L, 1, "", &prefixlen);
lua_newtable(L);
i = 0;
n = GetZipCdirRecords(zcdir);
@ -5022,8 +5023,10 @@ static int LuaGetZipPaths(lua_State *L) {
zcf += ZIP_CFILE_HDRSIZE(zcf)) {
CHECK_EQ(kZipCfileHdrMagic, ZIP_CFILE_MAGIC(zcf));
path = GetAssetPath(zcf, &pathlen);
if (prefixlen == 0 || startswith(path, prefix)) {
lua_pushlstring(L, path, pathlen);
lua_seti(L, -2, ++i);
}
free(path);
}
return 1;