74 строки
1.9 KiB
Bash
74 строки
1.9 KiB
Bash
# This script is sourced by the user and uses
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# their shell.
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#
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# This script tries to find its location but
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# this does not work in every shell.
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#
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# It is known to work in bash, zsh and ksh
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#
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# Do not execute this script without sourcing,
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# because it won't have any effect then.
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# That is, always run this script with
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#
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# . /path/to/emsdk_env.sh
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#
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# or
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#
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# source /path/to/emsdk_env.sh
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#
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# instead of just plainly running with
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#
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# ./emsdk_env.sh
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#
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# which won't have any effect.
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CURRENT_SCRIPT=
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DIR="."
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# use shell specific method to get the path
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# to the current file being source'd.
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#
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# To add a shell, add another conditional below,
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# then add tests to scripts/test_source_env.sh
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if [ -n "${BASH_SOURCE-}" ]; then
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CURRENT_SCRIPT="$BASH_SOURCE"
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elif [ -n "${ZSH_VERSION-}" ]; then
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CURRENT_SCRIPT="${(%):-%x}"
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elif [ -n "${KSH_VERSION-}" ]; then
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CURRENT_SCRIPT=${.sh.file}
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fi
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if [ -n "${CURRENT_SCRIPT-}" ]; then
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DIR=$(dirname "$CURRENT_SCRIPT")
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if [ -h "$CURRENT_SCRIPT" ]; then
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# Now work out actual DIR since this is part of a symlink.
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# Since we can't be sure that readlink or realpath
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# are available, use tools more likely to be installed.
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# (This will still fail if sed is not available.)
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SYMDIR=$(dirname "$(ls -l "$CURRENT_SCRIPT" | sed -n "s/.*-> //p")")
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if [ -z "$SYMDIR" ]; then
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SYMDIR="."
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fi
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FULLDIR="$DIR/$SYMDIR"
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DIR=$(cd "$FULLDIR" > /dev/null 2>&1; /bin/pwd)
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unset SYMDIR
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unset FULLDIR
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fi
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fi
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unset CURRENT_SCRIPT
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if [ ! -f "$DIR/emsdk.py" ]; then
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echo "Error: unable to determine 'emsdk' directory. Perhaps you are using a shell or" 1>&2
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echo " environment that this script does not support." 1>&2
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echo 1>&2
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echo "A possible solution is to source this script while in the 'emsdk' directory." 1>&2
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echo 1>&2
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unset DIR
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return
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fi
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# Force emsdk to use bash syntax so that this works in windows + bash too
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eval `EMSDK_BASH=1 $DIR/emsdk construct_env`
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unset DIR
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