From 783001ec079bac46e51ab2ce7969d117f8af05fc Mon Sep 17 00:00:00 2001
From: Alec Warner <antarus@gentoo.org>
Date: Thu, 8 Feb 2007 04:38:21 +0000
Subject: die requires diefunc and dump_trace too; duh; also move extdebug into
 isolated-functions.sh

svn path=/main/trunk/; revision=5930
---
 bin/isolated-functions.sh | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

(limited to 'bin/isolated-functions.sh')

diff --git a/bin/isolated-functions.sh b/bin/isolated-functions.sh
index d9fafbcb6..41595ea30 100755
--- a/bin/isolated-functions.sh
+++ b/bin/isolated-functions.sh
@@ -10,6 +10,37 @@ alias assert='_pipestatus="${PIPESTATUS[*]}"; [[ "${_pipestatus// /}" -eq 0 ]] |
 alias save_IFS='[ "${IFS:-unset}" != "unset" ] && old_IFS="${IFS}"'
 alias restore_IFS='if [ "${old_IFS:-unset}" != "unset" ]; then IFS="${old_IFS}"; unset old_IFS; else unset IFS; fi'
 
+shopt -s extdebug
+
+# usage- first arg is the number of funcs on the stack to ignore.
+# defaults to 1 (ignoring dump_trace)
+dump_trace() {
+        local funcname="" sourcefile="" lineno="" n e s="yes"
+
+        declare -i strip=1
+
+        if [[ -n $1 ]]; then
+                strip=$(( $1 ))
+        fi
+
+        echo "Call stack:"
+        for (( n = ${#FUNCNAME[@]} - 1, p = ${#BASH_ARGV[@]} ; n > $strip ; n-- )) ; do
+                funcname=${FUNCNAME[${n} - 1]}
+                sourcefile=$(basename ${BASH_SOURCE[${n}]})
+                lineno=${BASH_LINENO[${n} - 1]}
+                # Display function arguments
+                args=
+                if [[ -n "${BASH_ARGV[@]}" ]]; then
+                        for (( j = 1 ; j <= ${BASH_ARGC[${n} - 1]} ; ++j )); do
+                                newarg=${BASH_ARGV[$(( p - j - 1 ))]}
+                                args="${args:+${args} }'${newarg}'"
+                        done
+                        (( p -= ${BASH_ARGC[${n} - 1]} ))
+                fi
+                echo "  ${sourcefile}, line ${lineno}:   Called ${funcname}${args:+ ${args}}"
+        done
+}
+
 diefunc() {
         local funcname="$1" lineno="$2" exitcode="$3"
         shift 3
-- 
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