root/release-kits/lirk3/wrapper/mywrapper.c @ 15142

Revision 15142, 4.6 KB (checked in by oranfry, 11 years ago)

changes to the wrapper and installer logic, and a few changes to init and compile stuff

Line 
1#include <iostream>
2#include <fstream>
3#include <iomanip>
4
5using namespace std;
6
7#include "mywrapper.h"
8
9bool extract_bundled_file( const char[], int, char*, bool );
10
11int main(int argc, char** argv) {
12
13    string tempdir = (string)argv[0] + ".tmp"; //temporary directory where we will store extracted files
14    string jarfile = tempdir + "/greenstone3.jar"; //where we will store the jar file
15    string search4jfile = tempdir + "/search4j"; //where we will store the jar file
16    bool succeeded = false;
17
18    //create the temp folder
19    cout << "Creating temp directory" << endl;
20    succeeded = ( 0 == system( ("mkdir " + tempdir).c_str() ) );
21    if ( !succeeded ) {
22        cout << "Failed to write to create the temp directory '" << tempdir << "'" << endl;
23        cout << "Check that it does not already exist and try again" << endl;
24        cout << "Exiting" << endl;
25        return 1;
26    }
27
28    //extract files
29    cout << "Extracting installer jar..." << endl;
30    succeeded = extract_bundled_file( greenstone3jar, sizeof(greenstone3jar), (char*)jarfile.c_str(), false);
31    if ( !succeeded ) {
32        cout << "failed" << endl;
33        cout << "Failed to extract the JAR file to '" << jarfile << "'" << endl;
34        cout << "The file may be corrupt or missing" << endl;
35        cout << "Or this installer may not have sufficient file permissions to write it to disk" << endl;
36        cout << "Exiting" << endl;
37        return 1;
38    }
39
40    cout << "Extracting search4j tool..." << endl;
41    succeeded = extract_bundled_file( search4j, sizeof(search4j), (char*)search4jfile.c_str(), true );
42    if ( !succeeded ) {
43        cout << "failed" << endl;
44        cout << "Failed to extract the search4j tool to '" << jarfile << "'" << endl;
45        cout << "The file may be corrupt or missing" << endl;
46        cout << "Or this installer may not have sufficient file permissions to write it to disk" << endl;
47        cout << "Exiting" << endl;
48        return 1;
49    }
50
51
52    //change to the temp directory
53    chdir( tempdir.c_str() );
54
55
56    //check if an appropriate java is found
57    bool jvmFound = (system( "./search4j -m @java.min.version@ -h ./@java.extracted@" ) == 0);
58
59    //if the jvm was not found, try to fix it and find it
60    if ( !jvmFound ) {
61        //did not find a good java
62        cout << "Greenstone requires java @java.min.version@ or greater" << endl;
63       
64        //tell them if java is absent or just too old
65        if ( system( "./search4j -h ./@java.extracted@" ) == 0 ) {
66            cout << "Your java is too old." << endl;
67        } else {
68            cout << "Could not find java." << endl;
69        }
70       
71        //is this an installer with the bundled JRE?
72       
73        #ifdef java_is_bundled
74            //yes, JRE is bundled
75            cout
76                << "This installer comes bundled with a suitible version of java: " << endl
77                << "   @java.installer@" << endl
78                << "Do you want to install this java? (y/n)" << endl;
79            char r[1024]; cin >> r;
80            if ( strcmp( r, "y" ) == 0 || strcmp( r, "Y" ) == 0) {
81                extract_bundled_file( java, sizeof(java), (char*)"@java.installer@", true );
82                system( "./@java.installer@" );
83                jvmFound = true; //assume the java installation went well
84            }
85        #endif
86
87        #ifndef java_is_bundled
88            //no, JRE is not bundled
89            cout << "Install java (@java.min.version@ or greater) and set JAVA_HOME or JRE_HOME, and try again" << endl;
90            cout << "Or, download a greentsone3 installer with bundled java and use that instead of this one" << endl;
91        #endif
92    }
93
94    //if we have found it by now, launch the installer
95    if ( jvmFound ) {
96        cout << "Launching Installer ..." << endl;
97        int launch_exit_code = 0;
98        launch_exit_code = system("./search4j -m @java.min.version@ -l greenstone3.jar -h ./@java.extracted@");
99
100        //report how it went
101        if ( launch_exit_code == 0 ) {
102            cout << "Setup complete" << endl;
103        } else {
104            cout << "Still could not find a suitible version of java" << endl;
105            cout << "Please install java, set JAVA_HOME or JRE_HOME, and try again" << endl;
106        }
107
108    }
109
110    //change back to the original directory
111    chdir("..");
112
113    //delete the temp files
114    cout << "Deleting the temp directory" << endl;
115    system( ("rm -rf " + tempdir).c_str() );
116
117
118    return 0;
119
120}
121
122bool extract_bundled_file( const char data[], int size, char* filename, bool make_executable) {
123
124    if ( size == 0 ) return false;
125
126    //delete the file if it exists
127    remove( filename );
128
129    //open the file
130    fstream binary_file( filename, ios::out|ios::binary );
131    if ( !binary_file.good() ) {
132        binary_file.close();
133        return false;
134    }
135
136    //write the file
137    binary_file.write( data, size );
138    if ( !binary_file.good() ) {
139        binary_file.close();
140        return false;
141    }
142
143    //close the file
144    binary_file.close();
145    if ( !binary_file.good() ) {
146        binary_file.close();
147        return false;
148    }
149
150    if ( make_executable ) {
151        string command = "chmod a+x " + string(filename);
152        system( command.c_str() );
153    }
154
155    return true;
156
157}
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