root/main/trunk/gli/findjava.sh @ 32276

Revision 32013, 7.4 KB (checked in by ak19, 2 years ago)

Suppressing confusing message on Macs when there's no system Java installed but search4j is still trying to find a (custom) java and could potentially find one.

  • Property svn:executable set to *
Line 
1# We will already be in the correct folder (GLI folder), which would
2# contain a compiled up search4j if this GLI is part of an installation.
3# If a search4j executable is not there, then it means this is an SVN checkout.
4# In such a case, it's up to the user checking things out to ensure JAVA_HOME
5# is set and moreover points to the correct version of the Java.
6
7# Function to check if any JAVA_HOME is set and if so, try using that
8function try_java {
9    MIN_DISPLAY_VERSION=${1};
10
11    if [ "x$JAVA_HOME" = "x" -o ! -f "$JAVA_HOME/bin/java" ]; then
12    no_java "$MIN_DISPLAY_VERSION"
13    return $?
14    else
15    # There is a JAVA_HOME already set, we're going to try using that
16    javapath="$JAVA_HOME/bin/java"
17    javahome="$JAVA_HOME"
18    # Print a warning that we're going to use whatever JAVA_HOME is set (fingers crossed)
19    if [ "x$gslang" = "x" -o "$gslang" = "en" ]; then
20        echo
21        echo "***************************************************************************"
22        echo "WARNING: "
23        echo "Java Runtime not bundled with this Greenstone installation."
24        echo "Using JAVA_HOME: $JAVA_HOME"
25        echo "(NOTE: this needs to be $MIN_DISPLAY_VERSION or higher.)"
26        echo "***************************************************************************"
27        echo
28    fi
29    echo "Java:"
30    echo $javapath
31    echo
32    return 0
33    fi
34}
35
36function no_java {
37    MIN_DISPLAY_VERSION=${1};
38
39    echo
40    if [ "$gslang" = "es" ]; then
41    echo "No se pudo localizar una versión apropiada de Java. Usted deberá "
42    echo "instalar un Ambiente de Ejecución Java (versión $MIN_DISPLAY_VERSION o superior) "
43    echo "antes de correr la Interfaz de la $PROGNAME."
44    elif [ "$gslang" = "fr" ]; then
45    echo "Une version adéquate de Java n'a pas pu être localisée."
46    echo "Vous devez installer un Java Runtime Environment (version $MIN_DISPLAY_VERSION ou"
47    echo "supérieur) avant de démarrer $PROGNAME."
48    echo "Si vous avez Java installé sur votre ordinateur veuillez vérifier la variable"
49    echo "d'environnement JAVA_HOME."
50    elif [ "$gslang" = "ru" ]; then
51    echo "îÅ ÕÄÁÌÏÓØ ÏÐÒÅÄÅÌÉÔØ ÍÅÓÔÏÎÁÈÏÖÄÅÎÉÅ ÓÏÏÔ×ÅÔÓÔ×ÕÀÝÅÊ ×ÅÒÓÉÉ Java."
52    echo "÷Ù ÄÏÌÖÎÙ ÕÓÔÁÎÏ×ÉÔØ Java Runtime Environment (×ÅÒÓÉÀ $MIN_DISPLAY_VERSION ÉÌÉ ×ÙÛÅ)"
53    echo "ÐÅÒÅÄ ××ÏÄÏÍ ÂÉÂÌÉÏÔÅÞÎÏÇÏ $PROGNAME."
54    else
55    echo "Failed to locate an appropriate version of Java. You must install a"
56    echo "Java Runtime Environment (version $MIN_DISPLAY_VERSION or greater) before running the"
57    echo "$PROGNAME."
58    echo "If you have Java installed on your machine please set the environment variable JAVA_HOME."
59    fi
60    return 1
61}
62
63function set_java_exec {   
64    SEARCH4J_EXECUTABLE=${1};
65    MINIMUM_JAVA_VERSION=${2};
66    MIN_DISPLAY_VERSION=${3};
67
68    # Give search4j a hint to find Java depending on the platform
69    # we now include a JRE with Mac (Mountain) Lion, because from Yosemite onwards there's no system Java on Macs
70    HINT=`cd "$GSDLHOME";pwd`/packages/jre   
71   
72    # we can't use boolean operator -a to do the AND, since it doesn't "short-circuit" if the first test fails
73    # see http://www.tldp.org/LDP/abs/html/comparison-ops.html
74    if [ "$GSDLOS" = "darwin" ] && [ ! -d "$HINT" ]; then
75        # http://java.dzone.com/articles/java-findingsetting
76    # explains that /usr/libexec/java_home will print the default JDK
77    # regardless of which Mac OS we're on. Tested on Maverick, Lion, Leopard
78    # (run `/usr/libexec/java_home -v 1.7` to find a specific version)
79
80    # run silently in case no system java installed, as it will result in a confusing message about there being no java
81    # when we're still searching for java
82    macHINT=`/usr/libexec/java_home 2>&1`
83    #HINT=/System/Library/Frameworks/JavaVM.framework/Versions/CurrentJDK/Home
84        #/System/Library/Frameworks/JavaVM.framework/Home
85    status=$?
86        # if no java installed, then HINT will contain:
87        #  Unable to find any JVMs matching version "(null)".
88        #  No Java runtime present, try --request to install.
89        # and the status of running /usr/libexec/java_home will not be 0 but 1:
90    if [ "$status" = "0" ]; then
91        HINT=$macHINT
92        else
93        echo "No system Java on this mac..."
94    fi
95    fi
96   
97    javapath="`"$SEARCH4J_EXECUTABLE" -e -p "$HINT" -m $MINIMUM_JAVA_VERSION`"
98    javahome="`"$SEARCH4J_EXECUTABLE" -p "$HINT" -m $MINIMUM_JAVA_VERSION`"
99
100    if [ "$?" != "0" ]; then
101   
102        OLDVER="`"$SEARCH4J_EXECUTABLE" -v -p "$HINT"`"
103   
104        if [ "$?" = "0" ]; then
105       
106            if [ "$gslang" = "es" ]; then
107                echo "La versión del Ambiente de Ejecución Java (JRE por sus siglas en "
108                echo "inglés) que usted tiene instalada es demasiado vieja para ejecutar "
109                echo "la Interfaz de la $PROGNAME. Por favor instale "
110                echo "una nueva versión del Ambiente de Ejecución Java (versión $MIN_DISPLAY_VERSION o "
111                echo "posterior) y ejecute nuevamente este guión."
112            elif [ "$gslang" = "fr" ]; then
113                echo "La version de Java Runtime Environment que vous avez installée est"
114                echo "trop vielle pour faire fonctionner $PROGNAME."
115                echo "Veuillez installer une nouvelle version du JRE (version $MIN_DISPLAY_VERSION ou plus"
116                echo "récente) et redémarrez le script."
117            elif [ "$gslang" = "ru" ]; then
118                echo "÷ÅÒÓÉÑ Java Runtime Environment, ËÏÔÏÒÕÀ ÷Ù ÕÓÔÁÎÏ×ÉÌÉ, ÏÞÅÎØ ÓÔÁÒÁ,"
119                echo "ÞÔÏÂÙ ÕÐÒÁ×ÌÑÔØ ÂÉÂÌÉÏÔÅÞÎÙÍ $PROGNAME. ðÏÖÁÌÕÊÓÔÁ, "
120                echo "ÕÓÔÁÎÏ×ÉÔÅ ÎÏ×ÕÀ ×ÅÒÓÉÀ JRE (×ÅÒÓÉÀ $MIN_DISPLAY_VERSION ÉÌÉ ÂÏÌÅÅ ÎÏ×ÕÀ) É"
121                echo "ÐÅÒÅÕÓÔÁÎÏ×ÉÔÅ ÜÔÏÔ ÓËÒÉÐÔ"
122            else
123                echo "The version of the Java Runtime Environment you have installed ($OLDVER)"
124                echo "is too old to run the $PROGNAME. Please install a new"
125                echo "version of the JRE (version $MIN_DISPLAY_VERSION or newer) and rerun this script."
126            fi
127            return 1
128       
129        else
130        no_java "$MIN_DISPLAY_VERSION"
131        return $?
132        fi
133   
134    fi
135    echo "Java:"
136    echo $javapath
137    echo
138    return 0
139}
140
141
142## ---- Check Java ----
143# Some users may set this line manually
144#JAVA_HOME=
145gslang=$1
146PROGNAME=$2
147MINIMUM_JAVA_VERSION=1.4.0_00
148MIN_DISPLAY_VERSION=1.4
149
150# sus out search4j
151# first look for compiled search4j executable inside the current folder
152if [ -x search4j ]; then
153    SEARCH4J_EXECUTABLE=search4j   
154elif [ -x "$GSDLHOME/bin/$GSDLOS/search4j" ]; then
155    SEARCH4J_EXECUTABLE="$GSDLHOME/bin/$GSDLOS/search4j"
156elif [ -x "$GSDL3SRCHOME/bin/$GSDLOS/search4j" ]; then
157    SEARCH4J_EXECUTABLE="$GSDL3SRCHOME/bin/search4j"
158elif [ -x "../bin/$GSDLOS/search4j" ]; then
159    SEARCH4J_EXECUTABLE=../bin/$GSDLOS/search4j
160elif [ -x "../bin/search4j" ]; then
161    SEARCH4J_EXECUTABLE=../bin/search4j
162else
163    echo "Couldn't determine the location of the search4j executable"
164    echo "If you are running Greenstone2"
165    echo "   * check GSDLHOME is set"
166    echo "   * check bin/$GSDLOS/search4j exists"
167    echo "   * check bin/$GSDLOS/search4j is executable"
168    echo "If you are running Greenstone3"
169    echo "   * check GSDL3SRCHOME is set"
170    echo "   * check bin/search4j exists"
171    echo "   * check bin/search4j is executable"
172    echo "   * try running 'ant compile-search4j'"
173fi
174
175# Now run set_java_exec with search4j if we found one, else try javahome
176if [ "x$SEARCH4J_EXECUTABLE" != "x" ]; then
177    set_java_exec "$SEARCH4J_EXECUTABLE" "$MINIMUM_JAVA_VERSION" "$MIN_DISPLAY_VERSION"
178    retval=$?
179else
180    try_java "$MIN_DISPLAY_VERSION"
181    retval=$?
182fi
183return $retval
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