| 1 | #!/bin/sh |
| 2 | |
| 3 | SCRIPTNAME=termux-chroot |
| 4 | show_usage () { |
| 5 | echo "Usage: $SCRIPTNAME [command]" |
| 6 | echo "termux-chroot: Setup a chroot to mimic a normal Linux file system" |
| 7 | echo "" |
| 8 | echo "Execute a command in a chroot with traditional file system hierarchy" |
| 9 | echo "(having e.g. the folders /bin, /etc and /usr) within Termux." |
| 10 | echo "If run without argument, the default shell will be executed" |
| 11 | exit 0 |
| 12 | } |
| 13 | |
| 14 | while getopts :h option |
| 15 | do |
| 16 | case "$option" in |
| 17 | h) show_usage;; |
| 18 | ?) echo "$SCRIPTNAME: illegal option -$OPTARG"; exit 1; |
| 19 | esac |
| 20 | done |
| 21 | shift $(($OPTIND-1)) |
| 22 | |
| 23 | # For the /system/bin/linker(64) to be found: |
| 24 | ARGS="-b /system:/system" |
| 25 | |
| 26 | # On some devices /vendor is required for termux packages to work correctly |
| 27 | # See https://github.com/termux/proot/issues/2#issuecomment-303995382 |
| 28 | ARGS="$ARGS -b /vendor:/vendor" |
| 29 | |
| 30 | # Bind /data to include system folders such as /data/misc. Also $PREFIX |
| 31 | # and $HOME so that Termux programs with hard-coded paths continue to work: |
| 32 | ARGS="$ARGS -b /data:/data" |
| 33 | |
| 34 | if [ -f /property_contexts ]; then |
| 35 | # Used by getprop (see https://github.com/termux/termux-packages/issues/1076) |
| 36 | # but does not exist on Android 8. |
| 37 | ARGS="$ARGS -b /property_contexts:/property_contexts" |
| 38 | fi |
| 39 | |
| 40 | # Expose external and internal storage: |
| 41 | if [ -d /storage ]; then |
| 42 | ARGS="$ARGS -b /storage:/storage" |
| 43 | fi |
| 44 | |
| 45 | # Mimic traditional Linux file system hierarchy - /usr: |
| 46 | ARGS="$ARGS -b $PREFIX:/usr" |
| 47 | |
| 48 | # Mimic traditional Linux file system hierarchy - other Termux dirs: |
| 49 | for f in bin etc lib share tmp var; do |
| 50 | ARGS="$ARGS -b $PREFIX/$f:/$f" |
| 51 | done |
| 52 | |
| 53 | # Mimic traditional Linux file system hierarchy- system dirs: |
| 54 | for f in dev proc; do |
| 55 | ARGS="$ARGS -b /$f:/$f" |
| 56 | done |
| 57 | |
| 58 | # Set /home as current directory: |
| 59 | ARGS="$ARGS --cwd=/home" |
| 60 | |
| 61 | # Root of the file system: |
| 62 | ARGS="$ARGS -r $PREFIX/.." |
| 63 | |
| 64 | export HOME=/home |
| 65 | |
| 66 | # Shell to execute: |
| 67 | PROGRAM=/bin/bash |
| 68 | if [ -x $HOME/.termux/shell ]; then |
| 69 | PROGRAM=`readlink -f $HOME/.termux/shell` |
| 70 | fi |
| 71 | # Execute shell if no command has been supplied |
| 72 | if [ -z "$1" ];then |
| 73 | ARGS="$ARGS $PROGRAM -l" |
| 74 | exec $PREFIX/bin/proot $ARGS |
| 75 | else |
| 76 | # When a command is executed directly instead of opening a shell run |
| 77 | # the command in the current working directory instead of in /home |
| 78 | ARGS="$ARGS --cwd=." |
| 79 | # Start supplied command with "sh -c" so things like these work: |
| 80 | # termux-chroot "make;make install" |
| 81 | # termux-chroot "SOME_CONFIG=value ./configure" |
| 82 | exec $PREFIX/bin/proot $ARGS sh -c "$*" |
| 83 | fi |