3ea9051890
This killed the script prematurely (without displaying the error) if Emacs failed to execute. In versions prior to bash 4, set -e would not terminate the script if a non-zero exit code occurred within a subshell, but it will in bash 4+. In any case, we don't need this fallback to begin with. The script handles its errors sufficiently otherwise.
53 lines
1.7 KiB
Bash
Executable file
53 lines
1.7 KiB
Bash
Executable file
#!/usr/bin/env bash
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# This is a shebang interpreter for launching emacs lisp scripts with Doom's CLI
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# framework preloaded and all the metadata it needs initialized. Use it like so:
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#
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# #!/usr/bin/env doomscript
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# (print! "Hello world!")
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#
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# For this to work, this file must be in your $PATH.
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#
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# export PATH="$HOME/.emacs.d/bin:$PATH"
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#
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# This can also be exploited to evaluate arbitrary elisp against Doom's CLI
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# environment.
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#
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# This isn't used for bin/doom because of the $PATH requirement (and using
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# $BASH_SOURCE to locate it would reduce its POSIX compliance). This shouldn't
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# be an issue for folks writing their own CLIs, however.
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case "$EMACS" in
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*term*) EMACS=emacs ;;
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*) EMACS="${EMACS:-emacs}" ;;
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esac
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emacs="$EMACS -q --no-site-file --no-x-resources --no-splash --batch"
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TMPDIR="${TMPDIR:-$($emacs --eval '(princ (temporary-file-directory))' 2>/dev/null)}"
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if [ -z "$TMPDIR" ]; then
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>&2 echo "Error: failed to run Emacs with command '$EMACS'"
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>&2 echo
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>&2 echo "Are you sure Emacs is installed and in your \$PATH?"
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exit 1
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fi
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export EMACSDIR="${EMACSDIR:-$(cd $(dirname "$BASH_SOURCE")/.. && pwd)}"
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export __DOOMPID="${__DOOMPID:-$$}"
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export __DOOMSTEP="$((__DOOMSTEP+1))"
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export __DOOMGEOM="${__DOOMGEOM:-`tput cols lines 2>/dev/null`}"
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export __DOOMGPIPE=${__DOOMGPIPE:-$__DOOMPIPE}
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export __DOOMPIPE=; [ -t 0 ] || __DOOMPIPE+=0; [ -t 1 ] || __DOOMPIPE+=1
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tmpfile="$TMPDIR/doomscript.${__DOOMPID}"
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target="$1"
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shift
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$emacs --load "$EMACSDIR/core/core-cli" \
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--load "$target" \
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-- "$@" || exit=$?
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# Execute exit-script, if requested (to simulate execve)
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if [ "${exit:-0}" -eq 254 ]; then
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sh "${tmpdir}/doom.${__DOOMPID}.${__DOOMSTEP}.sh" "$0" "$@" && true
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exit="$?"
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fi
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exit $exit
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