root/release-kits/shared/linux/wrapper.cpp @ 19034

Revision 19034, 4.5 KB (checked in by oranfry, 11 years ago)

keeping the compiler happy

Line 
1#include <iostream>
2#include <fstream>
3#include <iomanip>
4#include <cstdlib>
5
6using namespace std;
7
8#include "wrapper.h"
9#include "libsearch4j.h"
10
11bool extract_bundled_file( const char[], int, char*, bool );
12
13int main(int argc, char** argv) {
14
15    string scratch = (getenv("TMPDIR") == NULL) ? "/tmp" : getenv("TMPDIR");
16    string tempdir = scratch + "/@installer.name@.tmp"; //temporary directory where we will store extracted files
17    string jarfile = tempdir + "/@installer.name@.jar"; //where we will store the jar file
18    string javafile = tempdir + "/@java.installer@"; //where we will store the java tar file
19    bool succeeded = false;
20    bool textMode = false;
21
22    //parse arguments
23    for ( int i=0; i<argc; i++ ) {
24        if ( strcmp( argv[i], "text" ) == 0 ) {
25            textMode = true;
26        }
27    }
28
29
30    //create the temp folder
31    cout << "Creating temp directory..." << endl;
32    succeeded = ( 0 == system( ("mkdir " + tempdir).c_str() ) );
33    if ( !succeeded ) {
34        cout << "Failed to write to create the temp directory '" << tempdir << "'" << endl;
35        cout << "Check that it does not already exist and try again" << endl;
36        cout << "Exiting" << endl;
37        return 1;
38    }
39
40    //extract files
41    cout << "Extracting installer jar..." << endl;
42    succeeded = extract_bundled_file( @installer.name@jar, sizeof(@installer.name@jar), (char*)jarfile.c_str(), false);
43
44    #ifdef java_is_bundled
45    cout << "Preparing Greenstone installer..." << endl;
46    succeeded = extract_bundled_file( java, sizeof(java), (char*)javafile.c_str(), true ) && succeeded;
47    #endif
48       
49    if ( !succeeded ) {
50        cout << "Failed to extract one or more resources" << endl;
51        cout << "This installer may not have sufficient file permissions to write it to disk" << endl;
52        cout << "Or, the files may be corrupt or missing from this executable" << endl;
53        cout << "Exiting" << endl;
54        return 1;
55    }
56
57    //change to the temp directory
58    chdir( tempdir.c_str() );
59
60    #ifdef java_is_bundled
61    succeeded = (system( "/bin/sh -c ./@java.installer@ > /dev/null" ) == 0);
62    succeeded = succeeded && ( system( "tar -xf jre.tar" ) == 0 );
63    if ( !succeeded ) {
64        cout << "Failed to extract the bundled java archive to the temp directory" << endl;
65        cout << "You need the tar program on your PATH" << endl;
66        cout << "Exiting" << endl;
67        return 1;
68    }
69    #endif
70
71    //check if an appropriate java is found
72    Jvm minimum; minimum.setVersionFromString( "@java.min.version@" );
73    string phint = "./@java.extracted@";
74    string hint = "";
75    Jvm foundJvm;
76    bool jvmFound = find( foundJvm, true, minimum, false, false, phint, hint, false );
77
78    //if the jvm was not found, report not found
79    if ( !jvmFound ) {
80
81        //did not find a good java
82        cout << "Greenstone requires java @java.min.version@ or greater." << endl;
83       
84        //tell them if java is absent or just too old
85        Jvm tmpJvm;
86        if ( find( tmpJvm, false, minimum, false, false, phint, hint, false ) ) {
87            cout << "You have java, but it is too old." << endl;
88        } else {
89            cout << "Could not find java on your system." << endl;
90        }
91       
92        cout << "Install java (@java.min.version@ or greater) and set JAVA_HOME or JRE_HOME, and try again" << endl;
93        #ifndef java_is_bundled
94        cout << "Or, download a greentsone3 installer with bundled java and use that instead of this one" << endl;
95        #endif
96
97    //if we have found it, launch the installer
98    } else {
99
100        cout << "Launching Installer ..." << endl;
101        int launch_exit_code = 0;
102        launch_exit_code = system( (foundJvm.getExecutable() + " -Xmx85M -jar @installer.name@.jar" + (textMode?" text":"") ).c_str() );
103
104        //report how it went
105        if ( launch_exit_code == 0 ) {
106            cout << "Setup complete" << endl;
107        } else {
108            cout << "The installer exited with an error" << endl;
109            cout << "Greenstone may not be correctly installed" << endl;
110        }
111
112    }
113
114    //change to the scratch dir for the following operation
115    chdir(scratch.c_str());
116
117    //delete the temp files
118    cout << "Deleting the temp directory" << endl;
119    system( ("rm -rf " + tempdir).c_str() );
120
121    return 0;
122
123}
124
125bool extract_bundled_file( const char data[], int size, char* filename, bool make_executable) {
126
127    if ( size == 0 ) return false;
128
129    //delete the file if it exists
130    remove( filename );
131
132    //open the file
133    fstream binary_file( filename, ios::out|ios::binary );
134    if ( !binary_file.good() ) {
135        binary_file.close();
136        return false;
137    }
138
139    //write the file
140    binary_file.write( data, size );
141    if ( !binary_file.good() ) {
142        binary_file.close();
143        return false;
144    }
145
146    //close the file
147    binary_file.close();
148    if ( !binary_file.good() ) {
149        binary_file.close();
150        return false;
151    }
152
153    if ( make_executable ) {
154        string command = "chmod a+x " + string(filename);
155        system( command.c_str() );
156    }
157
158    return true;
159
160}
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