organic/scripts/dump_ast.bash

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#!/usr/bin/env bash
#
# Dump the AST of an org-mode document from emacs
set -euo pipefail
IFS=$'\n\t'
DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
REALPATH=$(command -v uu-realpath || command -v realpath)
MAKE=$(command -v gmake || command -v make)
############## Setup #########################
function die {
local status_code="$1"
shift
(>&2 echo "${@}")
exit "$status_code"
}
function log {
(>&2 echo "${@}")
}
############## Program #########################
function main {
if [ $# -eq 0 ]; then
dump_ast_stdin "${@}"
else
dump_ast_file "${@}"
fi
}
function dump_ast_stdin {
# Until we can find a good way to encode stdin as an elisp string in bash, I cannot operate on stdin.
die 1 "This script only works on files."
}
function dump_ast_file {
local target_file mounted_file elisp_script
target_file=$($REALPATH "$1")
mounted_file="/input${target_file}"
elisp_script=$(cat <<EOF
(progn
(erase-buffer)
(require 'org)
(defun org-table-align () t)
(find-file-read-only "${mounted_file}")
(org-mode)
(message "%s" (pp-to-string (org-element-parse-buffer)))
)
EOF
)
exec docker run --init --rm -i --mount type=tmpfs,destination=/tmp -v "/:/input:ro" --entrypoint "" organic-test emacs -q --no-site-file --no-splash --batch --eval "$elisp_script"
}
main "${@}"