93 lines
2.6 KiB
Bash
Executable File
93 lines
2.6 KiB
Bash
Executable File
#!/bin/sh
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SCRIPTNAME=termux-chroot
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show_usage () {
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echo "Usage: $SCRIPTNAME [command]"
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echo "termux-chroot: Setup a chroot to mimic a normal Linux file system"
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echo ""
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echo "Execute a command in a chroot with traditional file system hierarchy"
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echo "(having e.g. the folders /bin, /etc and /usr) within Termux."
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echo "If run without argument, the default shell will be executed"
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exit 0
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}
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while getopts :h option
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do
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case "$option" in
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h) show_usage;;
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?) echo "$SCRIPTNAME: illegal option -$OPTARG"; exit 1;
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esac
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done
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shift $(($OPTIND-1))
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# For the /system/bin/linker(64) to be found:
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ARGS="-b /system:/system"
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# On some devices /vendor is required for termux packages to work correctly
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# See https://github.com/termux/proot/issues/2#issuecomment-303995382
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ARGS="$ARGS -b /vendor:/vendor"
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# Bind /data to include system folders such as /data/misc. Also $PREFIX
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# and $HOME so that Termux programs with hard-coded paths continue to work:
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ARGS="$ARGS -b /data:/data"
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# Bind Magisk binary directories so root works, closing per Issue #2100.
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if [ -d /sbin ] && [ -d /root ]; then
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# Both of these directories exist under Android even without Magisk installed,
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# The existence check is to ensure that it doesn't break if this changes.
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ARGS="$ARGS -b /sbin:/sbin -b /root:/root"
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fi
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if [ -f /property_contexts ]; then
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# Used by getprop (see https://github.com/termux/termux-packages/issues/1076)
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# but does not exist on Android 8.
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ARGS="$ARGS -b /property_contexts:/property_contexts"
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fi
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# Expose external and internal storage:
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if [ -d /storage ]; then
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ARGS="$ARGS -b /storage:/storage"
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fi
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# Mimic traditional Linux file system hierarchy - /usr:
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ARGS="$ARGS -b $PREFIX:/usr"
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# Mimic traditional Linux file system hierarchy - other Termux dirs:
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for f in bin etc lib share tmp var; do
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ARGS="$ARGS -b $PREFIX/$f:/$f"
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done
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# Mimic traditional Linux file system hierarchy- system dirs:
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for f in dev proc; do
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ARGS="$ARGS -b /$f:/$f"
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done
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# Set /home as current directory:
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ARGS="$ARGS --cwd=/home"
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# Root of the file system:
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ARGS="$ARGS -r $PREFIX/.."
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# Shell to execute:
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PROGRAM=/bin/bash
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if [ -x $HOME/.termux/shell ]; then
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PROGRAM=`readlink -f $HOME/.termux/shell`
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fi
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export HOME=/home
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# Execute shell if no command has been supplied
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if [ -z "$1" ];then
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ARGS="$ARGS $PROGRAM -l"
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exec $PREFIX/bin/proot $ARGS
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else
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# When a command is executed directly instead of opening a shell run
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# the command in the current working directory instead of in /home
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ARGS="$ARGS --cwd=."
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# Start supplied command with "sh -c" so things like these work:
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# termux-chroot "make;make install"
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# termux-chroot "SOME_CONFIG=value ./configure"
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exec $PREFIX/bin/proot $ARGS sh -c "$*"
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fi
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