1 files changed, 159 insertions, 0 deletions
diff --git a/src/dev-scripts/included_headers.sh b/src/dev-scripts/included_headers.sh
new file mode 100755
index 0000000..915628b
--- /dev/null
+++ b/src/dev-scripts/included_headers.sh
@@ -0,0 +1,159 @@
+#!/bin/bash
+
+# CHANGES
+#
+# 20051211: Add qfile use from portage-utils, prefer over equery. Create new
+# 	function track_headers() to handle package manager queries for both
+# 	relative and absolute headers. Split relative and absolute queries into two
+# 	separate places, since relative aren't quite as reliable. Prefer headers
+# 	found in the tarball over those in /usr/include. Also, note which headers
+# 	weren't considered in the calculation and the reasons why not.
+
+location=${1}
+
+usage() {
+	echo "${0##*/} [ -d ] source_location"
+	echo "  Returns owners of all include files used. ${0##*/} defaults to"
+	echo "  files in /usr/include, so if a file with the same name within the"
+	echo "  source is the actual one used, false dependencies may be printed."
+	echo
+	echo "  -d"
+	echo "    Show debug output: Print files not found"
+	exit 1
+}
+
+decho() {
+	if [[ -n "${DEBUG}" ]]; then
+		echo "${1}"
+	fi
+}
+
+if [[ $# -le 0 ]] || [[ $# -ge 3 ]]; then
+	usage
+fi
+
+# Handle command-line options
+while getopts d options; do
+	case ${options} in
+		d)	DEBUG=1
+			;;
+		*)	usage
+			;;
+	esac
+done
+# Reset post-option stuff to positional parameters
+shift $((OPTIND - 1))
+
+get_absolute_includes() {
+	grep '^#[[:space:]]*include' -r ${1} | grep '.*.[ch]' | grep -e '<' -e '>' \
+	| cut -d':' -f2 | cut -d'<' -f2 | cut -d'>' -f1 | grep '.*.[ch]' \
+	| sort | uniq
+}
+
+get_relative_includes() {
+	grep '^#[[:space:]]*include' -r ${1} | grep '.*.[ch]' | grep -e '"' -e '"' \
+	| cut -d':' -f2 | cut -d'"' -f2 | cut -d'"' -f1 | grep '.*.[ch]' \
+	| sort | uniq
+}
+
+track_headers() {
+	if [[ -x $(which qfile 2> /dev/null) ]]; then
+		qfile ${@} | cut -d'(' -f1 | sort | uniq
+	elif [[ -x $(which equery 2> /dev/null) ]]; then
+		equery -q belongs ${@} | cut -d'(' -f1
+	elif [[ -x $(which rpm 2> /dev/null) ]]; then
+		rpm -qf ${@}
+	else
+		echo "Couldn't find package query tool! Printing headerpaths instead."
+		echo
+		for header in ${@}; do
+			echo ${header}
+		done
+	fi
+}
+
+echo "Analyzing source ... "
+absolute_headers="$(get_absolute_includes ${1})"
+relative_headers="$(get_relative_includes ${1})"
+
+echo "Looking for absolute headers ... "
+echo
+for header in ${absolute_headers}; do
+	absheader="/usr/include/${header}"
+	if [[ -e ${absheader} ]]; then
+		abs_headerpaths="${abs_headerpaths} ${absheader}"
+		echo "  Looking for ${absheader} ... OK"
+	else
+		# Try as a relative header in case people use -I with <>
+		relative_headers="${relative_headers} ${header}"
+		decho "  Looking for ${absheader} ... Not found!"
+	fi
+done
+
+echo
+echo "Looking for relative headers ... "
+echo
+for header in ${relative_headers}; do
+	fullheader=${header}
+	header=${header##*/}
+	# Prefer headers in tarball over /usr/include
+	header_options=$(find ${location} -name ${header} | grep ${fullheader})
+	if [[ -z ${header_options} ]]; then
+		header_options="$(find /usr/include -name ${header} | grep ${fullheader})"
+		header_loc="/usr/include"
+	else
+		decho "  Local header ${header} ... Not considering."
+		local_headers="${local_headers} ${header}"
+		continue
+	fi
+	count="0"
+	for found in ${header_options}; do
+		(( count++ ))
+	done
+	if [[ ${count} -ge 2 ]]; then
+		echo "  Looking for ${header} ... "
+		echo "    More than one option found for ${header} in ${header_loc}."
+		echo "    Not considering ${header}."
+		duplicate_headers="${duplicate_headers} ${header}"
+		continue
+	elif [[ ${count} -le 0 ]]; then
+		decho "  Looking for ${header} ... Not found!"
+		unfound_headers="${unfound_headers} ${header}"
+		continue
+	fi
+	header=${header_options}
+	if [[ -e ${header} ]] && [[ ${header_loc} = /usr/include ]]; then
+		rel_headerpaths="${rel_headerpaths} ${header}"
+		echo "  Looking for ${header} ... OK"
+	else
+		decho "  Looking for ${header} ... Not found!"
+	fi
+done
+
+echo "Tracing headers back to packages ..."
+echo
+echo "Headers ignored because they exist in the tarball:"
+echo
+for header in ${local_headers}; do
+	echo "${header}"
+done
+echo
+echo "Headers ignored because of duplicates in /usr/include:"
+echo
+for header in ${duplicate_headers}; do
+	echo "${header}"
+done
+echo
+echo "Headers ignored because they weren't found:"
+echo
+for header in ${unfound_headers}; do
+	echo "${header}"
+done
+echo
+echo "Absolute headers:"
+echo
+track_headers ${abs_headerpaths}
+echo
+echo "Relative headers:"
+echo
+track_headers ${rel_headerpaths}