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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 minor (mm), and patch (pp) versions encoded. The version value 1.4
would be represented as 0x010400. would be represented as 0x010400.
GetZipPaths() → {path:str,...} GetZipPaths([prefix:str]) → {path:str,...}
Returns paths of all assets in the zip central directory, prefixed 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 HasParam(name:str) → bool
Returns true if parameter with name was supplied in either the Returns true if parameter with name was supplied in either the

9
tool/net/redbean.c
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@ -5014,7 +5014,8 @@ static int LuaIsHiddenPath(lua_State *L) {
static int LuaGetZipPaths(lua_State *L) { static int LuaGetZipPaths(lua_State *L) {
char *path; char *path;
uint8_t *zcf; uint8_t *zcf;
size_t i, n, pathlen; size_t i, n, pathlen, prefixlen;
char *prefix = luaL_optlstring(L, 1, "", &prefixlen);
lua_newtable(L); lua_newtable(L);
i = 0; i = 0;
n = GetZipCdirRecords(zcdir); n = GetZipCdirRecords(zcdir);
@ -5022,8 +5023,10 @@ static int LuaGetZipPaths(lua_State *L) {
zcf += ZIP_CFILE_HDRSIZE(zcf)) { zcf += ZIP_CFILE_HDRSIZE(zcf)) {
CHECK_EQ(kZipCfileHdrMagic, ZIP_CFILE_MAGIC(zcf)); CHECK_EQ(kZipCfileHdrMagic, ZIP_CFILE_MAGIC(zcf));
path = GetAssetPath(zcf, &pathlen); path = GetAssetPath(zcf, &pathlen);
lua_pushlstring(L, path, pathlen); if (prefixlen == 0 || startswith(path, prefix)) {
lua_seti(L, -2, ++i); lua_pushlstring(L, path, pathlen);
lua_seti(L, -2, ++i);
}
free(path); free(path);
} }
return 1; return 1;