root/release-kits/shared/linux/wrapper.cpp @ 19720

Revision 19720, 6.4 KB (checked in by oranfry, 11 years ago)

changed the linux wrapper to default to web installer wrapper, and added commandline options and usage screen

Line 
1#include <iostream>
2#include <fstream>
3#include <iomanip>
4#include <string.h>
5#include <cstdlib>
6#include <sstream>
7using namespace std;
8
9#ifndef CDROM
10#include "wrapper.h"
11#include "libsearch4j.h"
12bool extract_bundled_file( const char[], int, char*, bool );
13#endif
14
15void usage( char* progname, int exitvalue = -1 ) {
16    cerr
17        << "Usage: " << progname << " [OPTIONS]" << endl
18        << "OPTIONS: " << endl
19        << " -h, -help          Display this usage message" << endl
20        << " -text              Do a non-graphical command line installation" << endl;
21    #ifdef CDROM
22    cerr << " -wd PATH          Look for the CD-ROM at PATH" << endl;
23    #endif
24
25    exit( exitvalue );
26}
27
28int main(int argc, char** argv) {
29
30    char wdc[1024];
31    getcwd(wdc, sizeof(wdc));
32    string wd = "";
33    wd.append( wdc );
34   
35    string scratch = (getenv("TMPDIR") == NULL) ? "/tmp" : getenv("TMPDIR");
36    string tempdir = scratch + "/greenstone-installer.tmp"; //temporary directory where we will store extracted files
37    bool succeeded = false;
38    bool text_mode = false;
39
40    //parse arguments
41    string a;
42    for ( int i=1; i<argc; i++ ) {
43        a = argv[i];
44        if ( a.compare("-wd") == 0 ) {
45            wd = "";
46            wd.append( argv[++i] );
47        } else if ( a.compare("-h") == 0 || a.compare("-help") == 0 || a.compare("--help") == 0) {
48            usage( argv[0], 0 );
49        } else if ( a.compare("-text") == 0 || a.compare("text") == 0 ) {
50            text_mode = true;
51        } else {
52            cerr << "Unrecognised option '" << a << "'" << endl;
53            usage(argv[0]);
54        }
55    }
56
57    #ifdef CDROM
58    //ensure working directory is correct
59    FILE* pFile;
60    pFile = fopen( (wd+"/Software/core/all/uninst.jar").c_str(), "r");
61    if ( pFile == NULL ) {
62        cerr << "Could not find cdrom at '" << wd << "'." << endl;
63        cerr << "Please enter the path the CDROM [/media/cdrom]: ";
64        getline(cin, wd);
65        if ( wd.compare("") == 0 ) {
66            wd = "/media/cdrom";
67        }
68    } else {
69        fclose(pFile);
70    }
71
72    pFile = fopen( (wd+"/Software/core/all/uninst.jar").c_str(), "r");
73    if ( pFile == NULL ) {
74        cerr << "Could not find cdrom at '"<< wd << "'." << endl;
75        cerr << "Please run the installer again" << endl;
76        exit(-1);
77    } else {
78        fclose(pFile);
79    }
80    #endif
81
82    //create the temp folder
83    cout << "Creating temp directory..." << endl;
84    succeeded = ( 0 == system( ("mkdir " + tempdir).c_str() ) );
85    if ( !succeeded ) {
86        cerr << "Failed to create the temp directory '" << tempdir << "'. " <<
87         "Check that it does not already exist. Also check that you have write " <<
88         "permissions to '" << scratch << "', or set the environment variable TMPDIR to " <<
89         "a directory where you do have write permissions." << endl <<
90        "Exiting" << endl;
91        return 1;
92    }
93   
94    #ifndef CDROM
95
96    string jarfile = tempdir + "/@installer.name@.jar"; //where we will store the jar file
97    string javafile = tempdir + "/@java.installer@"; //where we will store the java tar file
98
99
100    //extract files
101    cout << "Extracting installer jar..." << endl;
102    succeeded = extract_bundled_file( @installer.name@jar, sizeof(@installer.name@jar), (char*)jarfile.c_str(), false);
103
104    #ifdef java_is_bundled
105    cout << "Preparing Greenstone installer..." << endl;
106    succeeded = extract_bundled_file( java, sizeof(java), (char*)javafile.c_str(), true ) && succeeded;
107    #endif
108       
109    if ( !succeeded ) {
110        cerr << "Failed to extract one or more resources" << endl;
111        cerr << "This installer may not have sufficient file permissions to write it to disk" << endl;
112        cerr << "Or, the files may be corrupt or missing from this executable" << endl;
113        cerr << "Exiting" << endl;
114        return 1;
115    }
116
117    #endif
118
119    //change to the temp directory
120    chdir( tempdir.c_str() );
121
122
123    #ifndef CDROM
124    #ifdef java_is_bundled
125    succeeded = (system( "/bin/sh -c ./@java.installer@ > /dev/null" ) == 0);
126    succeeded = succeeded && ( system( "tar -xf jre.tar" ) == 0 );
127    if ( !succeeded ) {
128        cout << "Failed to extract the bundled java archive to the temp directory" << endl;
129        cout << "You need the tar program on your PATH" << endl;
130        cout << "Exiting" << endl;
131        return 1;
132    }
133    #endif
134
135    //check if an appropriate java is found
136    Jvm minimum; minimum.setVersionFromString( "@java.min.version@" );
137    string phint = "./@java.extracted@";
138    string hint = "";
139    Jvm foundJvm;
140    bool jvmFound = find( foundJvm, true, minimum, false, false, phint, hint, false );
141
142    //if the jvm was not found, report not found
143    if ( !jvmFound ) {
144
145        //did not find a good java
146        cout << "Greenstone requires java @java.min.version@ or greater." << endl;
147       
148        //tell them if java is absent or just too old
149        Jvm tmpJvm;
150        if ( find( tmpJvm, false, minimum, false, false, phint, hint, false ) ) {
151            cout << "You have java, but it is too old." << endl;
152        } else {
153            cout << "Could not find java on your system." << endl;
154        }
155       
156        cout << "Install java (@java.min.version@ or greater) and set JAVA_HOME or JRE_HOME, and try again" << endl;
157        #ifndef java_is_bundled
158        cout << "Or, download a greentsone3 installer with bundled java and use that instead of this one" << endl;
159        #endif
160
161    //if we have found it, launch the installer
162    } else {
163
164        cout << "Launching Installer ..." << endl;
165        int launch_exit_code = 0;
166        launch_exit_code = system( (foundJvm.getExecutable() + " -Xmx85M -jar @installer.name@.jar" + (text_mode?" text":"") ).c_str() );
167
168        //report how it went
169        if ( launch_exit_code == 0 ) {
170            cout << "Setup complete" << endl;
171        } else {
172            cout << "The installer exited with an error" << endl;
173            cout << "Greenstone may not be correctly installed" << endl;
174        }
175
176    }
177    #else
178        string cmd = wd + "/Java/Linux/jre/bin/java -Dorig.dir=\"" + wd + "\" -jar " + wd + "/Java/Jars/linux.jar" + (text_mode?" text":"");
179        system( cmd.c_str() );
180    #endif
181
182    //change to the scratch dir for the following operation
183    chdir(scratch.c_str());
184
185    //delete the temp files
186    cout << "Deleting the temp directory" << endl;
187    system( ("rm -rf " + tempdir).c_str() );
188
189    return 0;
190
191}
192#ifndef CDROM
193bool extract_bundled_file( const char data[], int size, char* filename, bool make_executable) {
194
195    if ( size == 0 ) return false;
196
197    //delete the file if it exists
198    remove( filename );
199
200    //open the file
201    fstream binary_file( filename, ios::out|ios::binary );
202    if ( !binary_file.good() ) {
203        binary_file.close();
204        return false;
205    }
206
207    //write the file
208    binary_file.write( data, size );
209    if ( !binary_file.good() ) {
210        binary_file.close();
211        return false;
212    }
213
214    //close the file
215    binary_file.close();
216    if ( !binary_file.good() ) {
217        binary_file.close();
218        return false;
219    }
220
221    if ( make_executable ) {
222        string command = "chmod a+x " + string(filename);
223        system( command.c_str() );
224    }
225
226    return true;
227
228}
229#endif
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