auto import from //depot/cupcake/@135843
diff --git a/amend/main.c b/amend/main.c
new file mode 100644
index 0000000..9bb0785
--- /dev/null
+++ b/amend/main.c
@@ -0,0 +1,195 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include "ast.h"
+#include "lexer.h"
+#include "parser.h"
+#include "register.h"
+#include "execute.h"
+
+void
+lexTest()
+{
+ int token;
+ do {
+ token = yylex();
+ if (token == 0) {
+ printf(" EOF");
+ fflush(stdout);
+ break;
+ } else {
+ printf(" %s", tokenToString(token));
+ fflush(stdout);
+ if (token == TOK_IDENTIFIER) {
+ if (strcmp(yylval.literalString, "assert") == 0) {
+ setLexerArgumentType(AM_BOOLEAN_ARGS);
+ } else {
+ setLexerArgumentType(AM_WORD_ARGS);
+ }
+ do {
+ token = yylex();
+ printf(" %s", tokenToString(token));
+ fflush(stdout);
+ } while (token != TOK_EOL && token != TOK_EOF && token != 0);
+ } else if (token != TOK_EOL) {
+ fprintf(stderr, "syntax error: expected identifier\n");
+ break;
+ }
+ }
+ } while (token != 0);
+ printf("\n");
+}
+
+void
+usage()
+{
+ printf("usage: amend [--debug-lex|--debug-ast] [<filename>]\n");
+ exit(1);
+}
+
+extern const AmCommandList *gCommands;
+int
+main(int argc, char *argv[])
+{
+ FILE *inputFile = NULL;
+ bool debugLex = false;
+ bool debugAst = false;
+ const char *fileName = NULL;
+ int err;
+
+#if 1
+ extern int test_symtab(void);
+ int ret = test_symtab();
+ if (ret != 0) {
+ fprintf(stderr, "test_symtab() failed: %d\n", ret);
+ exit(ret);
+ }
+ extern int test_cmd_fn(void);
+ ret = test_cmd_fn();
+ if (ret != 0) {
+ fprintf(stderr, "test_cmd_fn() failed: %d\n", ret);
+ exit(ret);
+ }
+ extern int test_permissions(void);
+ ret = test_permissions();
+ if (ret != 0) {
+ fprintf(stderr, "test_permissions() failed: %d\n", ret);
+ exit(ret);
+ }
+#endif
+
+ argc--;
+ argv++;
+ while (argc > 0) {
+ if (strcmp("--debug-lex", argv[0]) == 0) {
+ debugLex = true;
+ } else if (strcmp("--debug-ast", argv[0]) == 0) {
+ debugAst = true;
+ } else if (argv[0][0] == '-') {
+ fprintf(stderr, "amend: Unknown option \"%s\"\n", argv[0]);
+ usage();
+ } else {
+ fileName = argv[0];
+ }
+ argc--;
+ argv++;
+ }
+
+ if (fileName != NULL) {
+ inputFile = fopen(fileName, "r");
+ if (inputFile == NULL) {
+ fprintf(stderr, "amend: Can't open input file '%s'\n", fileName);
+ usage();
+ }
+ }
+
+ commandInit();
+//xxx clean up
+
+ err = registerUpdateCommands();
+ if (err < 0) {
+ fprintf(stderr, "amend: Error registering commands: %d\n", err);
+ exit(-err);
+ }
+ err = registerUpdateFunctions();
+ if (err < 0) {
+ fprintf(stderr, "amend: Error registering functions: %d\n", err);
+ exit(-err);
+ }
+
+#if AMEND_LEXER_BUFFER_INPUT
+ if (inputFile == NULL) {
+ fprintf(stderr, "amend: No input file\n");
+ usage();
+ }
+ char *fileData;
+ int fileDataLen;
+ fseek(inputFile, 0, SEEK_END);
+ fileDataLen = ftell(inputFile);
+ rewind(inputFile);
+ if (fileDataLen < 0) {
+ fprintf(stderr, "amend: Can't get file length\n");
+ exit(2);
+ } else if (fileDataLen == 0) {
+ printf("amend: Empty input file\n");
+ exit(0);
+ }
+ fileData = (char *)malloc(fileDataLen + 1);
+ if (fileData == NULL) {
+ fprintf(stderr, "amend: Can't allocate %d bytes\n", fileDataLen + 1);
+ exit(2);
+ }
+ size_t nread = fread(fileData, 1, fileDataLen, inputFile);
+ if (nread != (size_t)fileDataLen) {
+ fprintf(stderr, "amend: Didn't read %d bytes, only %zd\n", fileDataLen,
+ nread);
+ exit(2);
+ }
+ fileData[fileDataLen] = '\0';
+ setLexerInputBuffer(fileData, fileDataLen);
+#else
+ if (inputFile == NULL) {
+ inputFile = stdin;
+ }
+ yyset_in(inputFile);
+#endif
+
+ if (debugLex) {
+ lexTest();
+ } else {
+ int ret = yyparse();
+ if (ret != 0) {
+ fprintf(stderr, "amend: Parse failed (%d)\n", ret);
+ exit(2);
+ } else {
+ if (debugAst) {
+ dumpCommandList(gCommands);
+ }
+printf("amend: Parse successful.\n");
+ ret = execCommandList((ExecContext *)1, gCommands);
+ if (ret != 0) {
+ fprintf(stderr, "amend: Execution failed (%d)\n", ret);
+ exit(3);
+ }
+printf("amend: Execution successful.\n");
+ }
+ }
+
+ return 0;
+}