1
2 #include "options.h"
3
4 #include <stdio.h>
5 #include <stdlib.h>
6 #include <string.h>
7
8 static int
usage()9 usage()
10 {
11 fprintf(stderr,
12 "usage: aidl OPTIONS INPUT [OUTPUT]\n"
13 " aidl --preprocess OUTPUT INPUT...\n"
14 "\n"
15 "OPTIONS:\n"
16 " -I<DIR> search path for import statements.\n"
17 " -d<FILE> generate dependency file.\n"
18 " -a generate dependency file next to the output file with the name based on the input file.\n"
19 " -p<FILE> file created by --preprocess to import.\n"
20 " -o<FOLDER> base output folder for generated files.\n"
21 " -b fail when trying to compile a parcelable.\n"
22 "\n"
23 "INPUT:\n"
24 " An aidl interface file.\n"
25 "\n"
26 "OUTPUT:\n"
27 " The generated interface files.\n"
28 " If omitted and the -o option is not used, the input filename is used, with the .aidl extension changed to a .java extension.\n"
29 " If the -o option is used, the generated files will be placed in the base output folder, under their package folder\n"
30 );
31 return 1;
32 }
33
34 int
parse_options(int argc,const char * const * argv,Options * options)35 parse_options(int argc, const char* const* argv, Options *options)
36 {
37 int i = 1;
38
39 if (argc >= 2 && 0 == strcmp(argv[1], "--preprocess")) {
40 if (argc < 4) {
41 return usage();
42 }
43 options->outputFileName = argv[2];
44 for (int i=3; i<argc; i++) {
45 options->filesToPreprocess.push_back(argv[i]);
46 }
47 options->task = PREPROCESS_AIDL;
48 return 0;
49 }
50
51 options->task = COMPILE_AIDL;
52 options->failOnParcelable = false;
53 options->autoDepFile = false;
54
55 // OPTIONS
56 while (i < argc) {
57 const char* s = argv[i];
58 int len = strlen(s);
59 if (s[0] == '-') {
60 if (len > 1) {
61 // -I<system-import-path>
62 if (s[1] == 'I') {
63 if (len > 2) {
64 options->importPaths.push_back(s+2);
65 } else {
66 fprintf(stderr, "-I option (%d) requires a path.\n", i);
67 return usage();
68 }
69 }
70 else if (s[1] == 'd') {
71 if (len > 2) {
72 options->depFileName = s+2;
73 } else {
74 fprintf(stderr, "-d option (%d) requires a file.\n", i);
75 return usage();
76 }
77 }
78 else if (s[1] == 'a') {
79 options->autoDepFile = true;
80 }
81 else if (s[1] == 'p') {
82 if (len > 2) {
83 options->preprocessedFiles.push_back(s+2);
84 } else {
85 fprintf(stderr, "-p option (%d) requires a file.\n", i);
86 return usage();
87 }
88 }
89 else if (s[1] == 'o') {
90 if (len > 2) {
91 options->outputBaseFolder = s+2;
92 } else {
93 fprintf(stderr, "-o option (%d) requires a path.\n", i);
94 return usage();
95 }
96 }
97 else if (len == 2 && s[1] == 'b') {
98 options->failOnParcelable = true;
99 }
100 else {
101 // s[1] is not known
102 fprintf(stderr, "unknown option (%d): %s\n", i, s);
103 return usage();
104 }
105 } else {
106 // len <= 1
107 fprintf(stderr, "unknown option (%d): %s\n", i, s);
108 return usage();
109 }
110 } else {
111 // s[0] != '-'
112 break;
113 }
114 i++;
115 }
116
117 // INPUT
118 if (i < argc) {
119 options->inputFileName = argv[i];
120 i++;
121 } else {
122 fprintf(stderr, "INPUT required\n");
123 return usage();
124 }
125
126 // OUTPUT
127 if (i < argc) {
128 options->outputFileName = argv[i];
129 i++;
130 } else if (options->outputBaseFolder.length() == 0) {
131 // copy input into output and change the extension from .aidl to .java
132 options->outputFileName = options->inputFileName;
133 string::size_type pos = options->outputFileName.size()-5;
134 if (options->outputFileName.compare(pos, 5, ".aidl") == 0) { // 5 = strlen(".aidl")
135 options->outputFileName.replace(pos, 5, ".java"); // 5 = strlen(".aidl")
136 } else {
137 fprintf(stderr, "INPUT is not an .aidl file.\n");
138 return usage();
139 }
140 }
141
142 // anything remaining?
143 if (i != argc) {
144 fprintf(stderr, "unknown option%s:", (i==argc-1?(const char*)"":(const char*)"s"));
145 for (; i<argc-1; i++) {
146 fprintf(stderr, " %s", argv[i]);
147 }
148 fprintf(stderr, "\n");
149 return usage();
150 }
151
152 return 0;
153 }
154
155