Author: dteske
Date: Thu Nov 7 10:20:19 2013
New Revision: 257782
URL: http://svnweb.freebsd.org/changeset/base/257782
Log:
Add global DEBUG_INITIALIZE_FILE environment variable for controlling
whether the debugFile is truncated upon initialization (useful for when
children implicitly re-initialize debugging and you want children to
append to your existing debugFile).
Modified:
head/usr.sbin/bsdconfig/share/common.subr
Modified: head/usr.sbin/bsdconfig/share/common.subr
==============================================================================
--- head/usr.sbin/bsdconfig/share/common.subr Thu Nov 7 10:14:40 2013
(r257781)
+++ head/usr.sbin/bsdconfig/share/common.subr Thu Nov 7 10:20:19 2013
(r257782)
@@ -68,6 +68,14 @@ export UNAME_R="$(uname -r)" # Release L
: ${DEBUG_SELF_INITIALIZE=1}
#
+# Default behavior of f_debug_init() is to truncate $debugFile (set to NULL to
+# disable truncating the debug file when initializing). To get child processes
+# to append to the same log file, export this variarable (with a NULL value)
+# and also export debugFile with the desired value.
+#
+: ${DEBUG_INITIALIZE_FILE=1}
+
+#
# Define standard optstring arguments that should be supported by all programs
# using this include (unless DEBUG_SELF_INITIALIZE is set to NULL to prevent
# f_debug_init() from autamatically processing "$@" for the below arguments):
@@ -164,13 +172,13 @@ f_debug_init()
[ "$debugFile" ] && export debugFile
#
- # Truncate the debug file upon. Note that we will trim a leading plus
- # (`+') from the value of debugFile to support persistant meaning that
- # f_dprintf() should print both to standard output and $debugFile
- # (minus the leading plus, of course).
+ # Truncate debug file unless requested otherwise. Note that we will
+ # trim a leading plus (`+') from the value of debugFile to support
+ # persistant meaning that f_dprintf() should print both to standard
+ # output and $debugFile (minus the leading plus, of course).
#
local _debug_file="${debugFile#+}"
- if [ "$_debug_file" ]; then
+ if [ "$_debug_file" -a "$DEBUG_INITIALIZE_FILE" ]; then
if ( umask 022 && :> "$_debug_file" ); then
f_dprintf "Successfully initialized debugFile \`%s'" \
"$_debug_file"
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