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annotate third_party/emsdk/emsdk_env.sh @ 191:a06710325c30 hg-web

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[HgWeb] Fully working copy.
author MrJuneJune <me@mrjunejune.com>
date Sat, 24 Jan 2026 21:51:51 -0800
parents 8d17f6e6e290
children
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1 # This script is sourced by the user and uses
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2 # their shell.
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3 #
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4 # This script tries to find its location but
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5 # this does not work in every shell.
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6 #
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7 # It is known to work in bash, zsh and ksh
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8 #
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9 # Do not execute this script without sourcing,
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10 # because it won't have any effect then.
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11 # That is, always run this script with
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12 #
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13 # . /path/to/emsdk_env.sh
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14 #
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15 # or
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16 #
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17 # source /path/to/emsdk_env.sh
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18 #
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19 # instead of just plainly running with
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20 #
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21 # ./emsdk_env.sh
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22 #
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23 # which won't have any effect.
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24
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25 CURRENT_SCRIPT=
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26 DIR="."
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27
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28 # use shell specific method to get the path
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29 # to the current file being source'd.
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30 #
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31 # To add a shell, add another conditional below,
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32 # then add tests to scripts/test_source_env.sh
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33
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34 if [ -n "${BASH_SOURCE-}" ]; then
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35 CURRENT_SCRIPT="$BASH_SOURCE"
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36 elif [ -n "${ZSH_VERSION-}" ]; then
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37 CURRENT_SCRIPT="${(%):-%x}"
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38 elif [ -n "${KSH_VERSION-}" ]; then
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39 CURRENT_SCRIPT=${.sh.file}
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40 fi
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41
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42 if [ -n "${CURRENT_SCRIPT-}" ]; then
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43 DIR=$(dirname "$CURRENT_SCRIPT")
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44 if [ -h "$CURRENT_SCRIPT" ]; then
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45 # Now work out actual DIR since this is part of a symlink.
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46 # Since we can't be sure that readlink or realpath
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47 # are available, use tools more likely to be installed.
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48 # (This will still fail if sed is not available.)
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49 SYMDIR=$(dirname "$(ls -l "$CURRENT_SCRIPT" | sed -n "s/.*-> //p")")
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50 if [ -z "$SYMDIR" ]; then
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51 SYMDIR="."
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52 fi
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53 FULLDIR="$DIR/$SYMDIR"
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54 DIR=$(cd "$FULLDIR" > /dev/null 2>&1; /bin/pwd)
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55 unset SYMDIR
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56 unset FULLDIR
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57 fi
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58 fi
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59 unset CURRENT_SCRIPT
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60
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61 if [ ! -f "$DIR/emsdk.py" ]; then
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62 echo "Error: unable to determine 'emsdk' directory. Perhaps you are using a shell or" 1>&2
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63 echo " environment that this script does not support." 1>&2
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64 echo 1>&2
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65 echo "A possible solution is to source this script while in the 'emsdk' directory." 1>&2
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66 echo 1>&2
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67 unset DIR
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68 return
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69 fi
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70
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71 # Force emsdk to use bash syntax so that this works in windows + bash too
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72 eval `EMSDK_BASH=1 "$DIR/emsdk" construct_env`
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73 unset DIR