1 files changed, 105 insertions, 0 deletions
diff --git a/src/script/script_scanner.cpp b/src/script/script_scanner.cpp
new file mode 100644
index 000000000..7b993889e
--- /dev/null
+++ b/src/script/script_scanner.cpp
@@ -0,0 +1,105 @@
+/* $Id$ */
+
+/** @file script_scanner.cpp Allows scanning for scripts. */
+
+#include "../stdafx.h"
+#include "../string_func.h"
+#include "../fileio_func.h"
+#include <sys/stat.h>
+
+#include <squirrel.h>
+#include "../script/squirrel.hpp"
+#include "script_info.hpp"
+#include "script_scanner.hpp"
+
+void ScriptScanner::ScanDir(const char *dirname, const char *info_file_name)
+{
+	extern bool FiosIsValidFile(const char *path, const struct dirent *ent, struct stat *sb);
+	extern bool FiosIsHiddenFile(const struct dirent *ent);
+
+	char d_name[MAX_PATH];
+	char temp_script[1024];
+	struct stat sb;
+	struct dirent *dirent;
+	DIR *dir;
+
+	dir = ttd_opendir(dirname);
+	/* Dir not found, so do nothing */
+	if (dir == NULL) return;
+
+	/* Walk all dirs trying to find a dir in which 'main.nut' exists */
+	while ((dirent = readdir(dir)) != NULL) {
+		ttd_strlcpy(d_name, FS2OTTD(dirent->d_name), sizeof(d_name));
+
+		/* Valid file, not '.' or '..', not hidden */
+		if (!FiosIsValidFile(dirname, dirent, &sb)) continue;
+		if (strcmp(d_name, ".") == 0 || strcmp(d_name, "..") == 0) continue;
+		if (FiosIsHiddenFile(dirent) && strncasecmp(d_name, PERSONAL_DIR, strlen(d_name)) != 0) continue;
+
+		/* Create the full length dirname */
+		ttd_strlcpy(temp_script, dirname, sizeof(temp_script));
+		ttd_strlcat(temp_script, d_name,  sizeof(temp_script));
+
+		if (S_ISREG(sb.st_mode)) {
+			/* Only .tar files are allowed */
+			char *ext = strrchr(d_name, '.');
+			if (ext == NULL || strcasecmp(ext, ".tar") != 0) continue;
+
+			/* We always expect a directory in the TAR */
+			const char *first_dir = FioTarFirstDir(temp_script);
+			if (first_dir == NULL) continue;
+
+			ttd_strlcat(temp_script, PATHSEP, sizeof(temp_script));
+			ttd_strlcat(temp_script, first_dir, sizeof(temp_script));
+			FioTarAddLink(temp_script, first_dir);
+		} else if (!S_ISDIR(sb.st_mode)) {
+			/* Skip any other type of file */
+			continue;
+		}
+
+		/* Add an additional / where needed */
+		if (temp_script[strlen(temp_script) - 1] != PATHSEPCHAR) ttd_strlcat(temp_script, PATHSEP, sizeof(temp_script));
+
+		char info_script[MAX_PATH];
+		ttd_strlcpy(info_script, temp_script, sizeof(info_script));
+		ttd_strlcpy(main_script, temp_script, sizeof(main_script));
+
+		/* Every script should contain an 'info.nut' and 'main.nut' file; else it is not a valid script */
+		ttd_strlcat(info_script, info_file_name, sizeof(info_script));
+		ttd_strlcat(main_script, "main.nut", sizeof(main_script));
+		if (!FioCheckFileExists(info_script, NO_DIRECTORY) || !FioCheckFileExists(main_script, NO_DIRECTORY)) continue;
+
+		/* We don't care if one of the other scripts failed to load. */
+		this->engine->ResetCrashed();
+		this->engine->LoadScript(info_script);
+	}
+	closedir(dir);
+}
+
+void ScriptScanner::ScanScriptDir(const char *info_file_name, Subdirectory search_dir)
+{
+	char buf[MAX_PATH];
+	Searchpath sp;
+
+	extern void ScanForTarFiles();
+	ScanForTarFiles();
+
+	FOR_ALL_SEARCHPATHS(sp) {
+		FioAppendDirectory(buf, MAX_PATH, sp, search_dir);
+		if (FileExists(buf)) this->ScanDir(buf, info_file_name);
+	}
+}
+
+ScriptScanner::ScriptScanner()
+{
+	this->engine = new Squirrel();
+	this->main_script[0] = '\0';
+
+	/* Mark this class as global pointer */
+	this->engine->SetGlobalPointer(this);
+}
+
+ScriptScanner::~ScriptScanner()
+{
+	delete this->engine;
+}