Ein Array in sh für Android definieren

Question

Ich bekomme immer einen Fehler für meine erste Zeile, aber ich bin mir nicht sicher warum genau. Ich nehme an, dass sh Array nicht erlaubt, zumindest nicht in der aktuellen Form. Gibt es einen Workaround dafür? Mein gesamtes Skript hängt davon ab. Jede Hilfe und/oder Einsicht würde sehr geschätzt werden.

Hier ist mein Fehler, Linie 292 das erste Bit des Skripts ist:

/tmp/updater: line 297: syntax error: unexpected "(" 
Updater process ended with ERROR: 2 

Script:

#!/sbin/sh 
FILE_PATHS=(
"/main" 
) 
EXTRACT_DIR="/tmp/dax" 
BACKUP_DIR="/data/local/tmp/dax" 
CP_LOG="cp.log" 
EXEMPT_LOG="exempt.log" 
BACKUP_LOG="backup.log" 
BUILD_VERSION=`grep "^ro\.build\.fingerprint" /system/build.prop` 
FLASHABLE_VERSION="0.9.1" 
EXCLUDE=(
"/system/addon.d" 
"/system/app" 
"/system/etc/init.d" 
"/su.d" 
) 

BACKUP=true 
if [[ -d $BACKUP_DIR ]] then 
    if [[ $BUILD_VERSION == `cat $BACKUP_DIR"rom_version.txt"` && $FLASHABLE_VERSION == `cat $BACKUP_DIR"flashable_version.txt"` ]] then 
     BACKUP=false 
     RESTORE=true 
    else 
     # Build Versions don't match, get rid of the backup and let it rebuild 
     rm -rf $BACKUP_DIR 
    fi 
fi 

function restoreBackup() { 
    while IFS= read -r line 
    do 
    if [[ -f $line ]] then 
     echo rm $line 
     if [[ $line == `grep "^$line$" $BACKUP_DIR$BACKUP_LOG` ]] then 
      cp_perm 0 0 0755 $BACKUP_DIR$line $line 
     fi 
    elif [[ -d $line ]] then 
     # This is where you would need to do mkdir and such 
     if [[ $line == `grep "^$line$" $BACKUP_DIR$BACKUP_LOG` ]] then 
      mkdir -p $line 
      cp_perm 0 0644 BACKUP_DIR$line $line 
     fi 
    fi 
    done < $1 
} 

if [[ $1 == "uninstall" ]] then 
    restoreBackup $BACKUP_DIR$CP_LOG 
    rm -rf $BACKUP_DIR 
    exit 
fi 

if [[ $RESTORE == 1 ]] then 
    restoreBackup $BACKUP_DIR$CP_LOG 
fi 

mkdir -p $BACKUP_DIR 
function checkExclusions() { 
    if [[ -f $1 ]] then 
     DNAME=`dirname $1` 
    fi 

    exists=0 
    for match in "${EXCLUDE[@]}" 
    do 
     if [[ $1 == $match || $DNAME == $match ]] then 
      exists=1 
     fi 
    done 
    return $exists 
} 

function populateLog() { 
    for i in `find $1 -type d`; do 
      checkExclusions $i 
      if [[ $? == 0 ]] then 
       echo ${i#$EXTRACT_DIR} >> $CP_LOG 
      elif [[ $? == 1 ]] then 
       echo ${i#$EXTRACT_DIR} >> $EXEMPT_LOG 
      fi 
    done 
    for i in `find $1 -type f`; do 
      # Check that the file isn't in an exempt path 
      checkExclusions $i 
      if [[ $? == 0 ]] then 
       echo ${i#$EXTRACT_DIR} >> $CP_LOG 
      elif [[ $? == 1 ]] then 
       echo ${i#$EXTRACT_DIR} >> $EXEMPT_LOG 
      fi 
    done 
} 

function readLog() { 
    if [[ $BACKUP == true ]] then 
     echo $BUILD_VERSION > $BACKUP_DIR"rom_version.txt" 
     echo $FLASHABLE_VERSION > $BACKUP_DIR"flashable_version.txt" 
    fi 
    while IFS= read -r line 
    do 
    if [[ -f $EXTRACT_DIR$line ]] then 
     if [[ -f $EXTRACT_DIR$line && $BACKUP == true ]] then 
      # Backup the files if they exist. Permissions don't matter here. 
      cp $line $BACKUP_DIR$line 
      echo $line >> $BACKUP_LOG 
     fi 
     cp_perm 0 0 0755 $EXTRACT_DIR$line $line 
    elif [[ -d $EXTRACT_DIR$line ]] then 
     if [[ -d $line && $BACKUP == true ]] then 
      # Backup the Directories if they exist 
      mkdir -p $BACKUP_DIR$line 
      echo $line >> $BACKUP_LOG 
     fi 
     mkdir -p $line 
     cp_perm 0 0644 $EXTRACT_DIR$line $line 
    fi 
    done < $1 
} 

for mpath in "${FILE_PATHS[@]}" 
    do 
    populateLog $mpath 
done 

readLog $CP_LOG 

# Backup the $CP_LOG so that we can remove files we added during an uninstall 
sort -o $BACKUP_DIR$CP_LOG $CP_LOG 
sort -o $BACKUP_DIR$EXEMPT_LOG $EXEMPT_LOG 
sort -o $BACKUP_DIR$BACKUP_LOG $BACKUP_LOG 
rm *.log 

Answer 1

Leider kann man nicht. Arrays sind eine Bash-Funktion und Android bietet nur eine POSIX-kompatible sh.

Ich würde es tun, wie folgt:

EXCLUDE="/system/addon.d /system/app /system/etc/init.d /su.d" 

function checkExclusions() { 
    if [ -f "$1" ]; then 
     DNAME=`dirname $1` 
    fi 

    exists=0 
    for match in $EXCLUDE; do 
     if [ "x$1" == "x$match" ] || [ "x$DNAME" == "x$match" ]; then 
      exists=1 
     fi 
    done 

    return $exists 
}