3 files changed, 141 insertions, 0 deletions
diff --git a/scripts/library/README b/scripts/library/README
new file mode 100644
index 00000000..1e9c962b
--- /dev/null
+++ b/scripts/library/README
@@ -0,0 +1,15 @@
+This folder contains code snippets that can be reused by multiple
+scripts.  A brief description of each file follows.
+
+output_format.sh:
+Provides basic output formatting functions with levels 'msg', 'msg2',
+'warning' and 'error'.  The 'msg' amd 'msg2' functions print to stdout
+and can be silenced by defining 'QUIET'.  The 'warning' and 'error'
+functions print to stderr with the appropriate prefix added to the
+message.
+
+parse_options.sh:
+A getopt replacement to avoids portability issues, in particular the
+lack of long option name support in the default getopt provided by some
+platforms.
+Usage: parse_option $SHORT_OPTS $LONG_OPTS "$@"
diff --git a/scripts/library/output_format.sh b/scripts/library/output_format.sh
new file mode 100644
index 00000000..9e890e76
--- /dev/null
+++ b/scripts/library/output_format.sh
@@ -0,0 +1,21 @@
+msg() {
+	(( QUIET )) && return
+	local mesg=$1; shift
+	printf "==> ${mesg}\n" "$@" >&1
+}
+
+msg2() {
+	(( QUIET )) && return
+	local mesg=$1; shift
+	printf "  -> ${mesg}\n" "$@" >&1
+}
+
+warning() {
+	local mesg=$1; shift
+	printf "==> $(gettext "WARNING:") ${mesg}\n" "$@" >&2
+}
+
+error() {
+	local mesg=$1; shift
+	printf "==> $(gettext "ERROR:") ${mesg}\n" "$@" >&2
+}
+\ No newline at end of file
diff --git a/scripts/library/parse_options.sh b/scripts/library/parse_options.sh
new file mode 100644
index 00000000..48fd42cd
--- /dev/null
+++ b/scripts/library/parse_options.sh
@@ -0,0 +1,105 @@
+# getopt like parser
+parse_options() {
+	local short_options=$1; shift;
+	local long_options=$1; shift;
+	local ret=0;
+	local unused_options=""
+	local i
+
+	while [[ -n $1 ]]; do
+		if [[ ${1:0:2} = '--' ]]; then
+			if [[ -n ${1:2} ]]; then
+				local match=""
+				for i in ${long_options//,/ }; do
+					if [[ ${1:2} = ${i//:} ]]; then
+						match=$i
+						break
+					fi
+				done
+				if [[ -n $match ]]; then
+					local needsargument=0
+
+					[[ ${match} = ${1:2}: ]] && needsargument=1
+					[[ ${match} = ${1:2}:: && -n $2 && ${2:0:1} != "-" ]] && needsargument=1
+
+					if (( ! needsargument )); then
+						printf ' %s' "$1"
+					else
+						if [[ -n $2 ]]; then
+							printf ' %s ' "$1"
+							shift
+							printf "'%q" "$1"
+							while [[ -n $2 && ${2:0:1} != "-" ]]; do
+								shift
+								printf " %q" "$1"
+							done
+							printf "'"
+						else
+							printf "@SCRIPTNAME@: $(gettext "option %s requires an argument\n")" "'$1'" >&2
+							ret=1
+						fi
+					fi
+				else
+					echo "@SCRIPTNAME@: $(gettext "unrecognized option") '$1'" >&2
+					ret=1
+				fi
+			else
+				shift
+				break
+			fi
+		elif [[ ${1:0:1} = '-' ]]; then
+			for ((i=1; i<${#1}; i++)); do
+				if [[ $short_options =~ ${1:i:1} ]]; then
+					local needsargument=0
+
+					[[ $short_options =~ ${1:i:1}: && ! $short_options =~ ${1:i:1}:: ]] && needsargument=1
+					[[ $short_options =~ ${1:i:1}:: && \
+						( -n ${1:$i+1} || ( -n $2 && ${2:0:1} != "-" ) ) ]] && needsargument=1
+
+					if (( ! needsargument )); then
+						printf ' -%s' "${1:i:1}"
+					else
+						if [[ -n ${1:$i+1} ]]; then
+							printf ' -%s ' "${1:i:1}"
+							printf "'%q" "${1:$i+1}"
+							while [[ -n $2 && ${2:0:1} != "-" ]]; do
+								shift
+								printf " %q" "$1"
+							done
+							printf "'"
+						else
+							if [[ -n $2 ]]; then
+								printf ' -%s ' "${1:i:1}"
+								shift
+								printf "'%q" "$1"
+								while [[ -n $2 && ${2:0:1} != "-" ]]; do
+									shift
+									printf " %q" "$1"
+								done
+								printf "'"
+
+							else
+								printf "@SCRIPTNAME@: $(gettext "option %s requires an argument\n")" "'-${1:i:1}'" >&2
+								ret=1
+							fi
+						fi
+						break
+					fi
+				else
+					echo "@SCRIPTNAME@: $(gettext "unrecognized option") '-${1:i:1}'" >&2
+					ret=1
+				fi
+			done
+		else
+			unused_options="${unused_options} '$1'"
+		fi
+		shift
+	done
+
+	printf " --"
+	[[ $unused_options ]] && printf ' %s' "${unused_options[@]}"
+	[[ $1 ]] && printf " '%s'" "$@"
+	printf "\n"
+
+	return $ret
+}
+\ No newline at end of file