source: release-kits/shared/linux/wrapper.cpp@ 19327

Last change on this file since 19327 was 19327, checked in by oranfry, 12 years ago

improved error message after changed behavior

File size: 4.7 KB
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 create the temp directory '" << tempdir << "'. " <<
35 "Check that it does not already exist. Also check that you have write " <<
36 "permissions to '" << scratch << "', or set the environment variable TMPDIR to " <<
37 "a directory where you do have write permissions." <<
38 endl;
39
40 cout << "Exiting" << endl;
41 return 1;
42 }
43
44 //extract files
45 cout << "Extracting installer jar..." << endl;
46 succeeded = extract_bundled_file( @installer.name@jar, sizeof(@installer.name@jar), (char*)jarfile.c_str(), false);
47
48 #ifdef java_is_bundled
49 cout << "Preparing Greenstone installer..." << endl;
50 succeeded = extract_bundled_file( java, sizeof(java), (char*)javafile.c_str(), true ) && succeeded;
51 #endif
52
53 if ( !succeeded ) {
54 cout << "Failed to extract one or more resources" << endl;
55 cout << "This installer may not have sufficient file permissions to write it to disk" << endl;
56 cout << "Or, the files may be corrupt or missing from this executable" << endl;
57 cout << "Exiting" << endl;
58 return 1;
59 }
60
61 //change to the temp directory
62 chdir( tempdir.c_str() );
63
64 #ifdef java_is_bundled
65 succeeded = (system( "/bin/sh -c ./@java.installer@ > /dev/null" ) == 0);
66 succeeded = succeeded && ( system( "tar -xf jre.tar" ) == 0 );
67 if ( !succeeded ) {
68 cout << "Failed to extract the bundled java archive to the temp directory" << endl;
69 cout << "You need the tar program on your PATH" << endl;
70 cout << "Exiting" << endl;
71 return 1;
72 }
73 #endif
74
75 //check if an appropriate java is found
76 Jvm minimum; minimum.setVersionFromString( "@java.min.version@" );
77 string phint = "./@java.extracted@";
78 string hint = "";
79 Jvm foundJvm;
80 bool jvmFound = find( foundJvm, true, minimum, false, false, phint, hint, false );
81
82 //if the jvm was not found, report not found
83 if ( !jvmFound ) {
84
85 //did not find a good java
86 cout << "Greenstone requires java @java.min.version@ or greater." << endl;
87
88 //tell them if java is absent or just too old
89 Jvm tmpJvm;
90 if ( find( tmpJvm, false, minimum, false, false, phint, hint, false ) ) {
91 cout << "You have java, but it is too old." << endl;
92 } else {
93 cout << "Could not find java on your system." << endl;
94 }
95
96 cout << "Install java (@java.min.version@ or greater) and set JAVA_HOME or JRE_HOME, and try again" << endl;
97 #ifndef java_is_bundled
98 cout << "Or, download a greentsone3 installer with bundled java and use that instead of this one" << endl;
99 #endif
100
101 //if we have found it, launch the installer
102 } else {
103
104 cout << "Launching Installer ..." << endl;
105 int launch_exit_code = 0;
106 launch_exit_code = system( (foundJvm.getExecutable() + " -Xmx85M -jar @installer.name@.jar" + (textMode?" text":"") ).c_str() );
107
108 //report how it went
109 if ( launch_exit_code == 0 ) {
110 cout << "Setup complete" << endl;
111 } else {
112 cout << "The installer exited with an error" << endl;
113 cout << "Greenstone may not be correctly installed" << endl;
114 }
115
116 }
117
118 //change to the scratch dir for the following operation
119 chdir(scratch.c_str());
120
121 //delete the temp files
122 cout << "Deleting the temp directory" << endl;
123 system( ("rm -rf " + tempdir).c_str() );
124
125 return 0;
126
127}
128
129bool extract_bundled_file( const char data[], int size, char* filename, bool make_executable) {
130
131 if ( size == 0 ) return false;
132
133 //delete the file if it exists
134 remove( filename );
135
136 //open the file
137 fstream binary_file( filename, ios::out|ios::binary );
138 if ( !binary_file.good() ) {
139 binary_file.close();
140 return false;
141 }
142
143 //write the file
144 binary_file.write( data, size );
145 if ( !binary_file.good() ) {
146 binary_file.close();
147 return false;
148 }
149
150 //close the file
151 binary_file.close();
152 if ( !binary_file.good() ) {
153 binary_file.close();
154 return false;
155 }
156
157 if ( make_executable ) {
158 string command = "chmod a+x " + string(filename);
159 system( command.c_str() );
160 }
161
162 return true;
163
164}
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