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82 lines
1.6 KiB
Bash
82 lines
1.6 KiB
Bash
#!/bin/sh
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#
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# usage: get-cm work_dir
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#
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# Find all .cm Group and Library descriptions that are referenced
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# from the top level alias files in $SML_BASE/lib/
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# temp file
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tmpfile="${TMP:-/tmp}/chomp$$"
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# attempt to change directory to work dir
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cd $1 || exit 1
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work_dir=`pwd` # get the canonical name for the current directory
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trap "rm -f $tmpfile" 0 1 2 3 15
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# hack to remove SML comments '(* ... *)'
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strip_comments()
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{
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# caveat: the following assumes gcc is present ...
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gcc -x c -E -P -ansi -DOPSYS_UNIX $1 | awk '{
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line = $0
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if (match(line, "\\(\\*")) {
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while (match($0, "\\(\\*")) {
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if (RSTART > 1) {
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print substr($0, 0, RSTART-1);
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}
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sub("^.*\\(\\*", "");
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while (!match($0, "\\*\\)")) {
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getline
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}
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$0 = substr($0, RSTART+RLENGTH);
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}
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}
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print
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}'
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}
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# return canonical name for a path with embedded ..'s
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canonical()
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{
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echo $(cd `dirname $1` && pwd)/`basename $1`
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}
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# initial list of CM description files
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global_cm_list="$(cat ./lib/*.cm | awk '{ print $2 }')"
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set -- $global_cm_list
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touch $tmpfile
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# process the global list
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while [ $# -ge 1 ]; do
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cm_file="$1"; shift
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global_cm_list="$*"
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echo $cm_file >> $tmpfile
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cm_dir=`dirname $cm_file`
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cm_new=$(strip_comments $cm_file | grep '\.cm' | \
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awk '{ print $1 }')
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# append new CM files to current global list
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for i in $cm_new; do
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new_cm_file=$(canonical $cm_dir/$i)
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if [ -r $new_cm_file ]; then
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if ! grep "^$new_cm_file" $tmpfile > /dev/null; then
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global_cm_list="$new_cm_file $global_cm_list"
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echo $new_cm_file >> $tmpfile
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fi
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fi
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done
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set -- $global_cm_list
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done
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# output to stdout
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sort -u < $tmpfile | sed -e "s,^$work_dir/,,"
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