From 246246573faabaea3ed4fbfbad6bf8556a8b3d8b Mon Sep 17 00:00:00 2001
From: Jan Lindemann <jan@janware.com>
Date: Fri, 9 Nov 2018 13:18:48 +0000
Subject: [PATCH] jw-pkg: Add command compile-templates

Signed-off-by: Jan Lindemann <jan@janware.com>
---
 scripts/jw-pkg | 85 +++++++++++++++++++++++++++++++++++++-------------
 1 file changed, 63 insertions(+), 22 deletions(-)

diff --git a/scripts/jw-pkg b/scripts/jw-pkg
index b7b0b177..aba08f40 100644
--- a/scripts/jw-pkg
+++ b/scripts/jw-pkg
@@ -20,19 +20,20 @@ cat << EOT
 
   command is one of
 
-    help:          show this help screen
-    init:          initialize
-    uninit:        undo initialization
-    install:       install packages in [arguments]
-    update:        update all jannet software on the system
-    restore:       restore a previous jannet software version state
-    info:          query information about installed software packages
-    info-projects: query information about installed software projects
-    checklog:      update the installation log file if necessary
-    rpmnew:        remove superfluous rpmnew files and show conflicts
-                   for others
-    build-date:    show installed jannet packages along with build date
-    built-today:   show installed jannet packages that were built today
+    help:                 show this help screen
+    init:                 initialize
+    uninit:               undo initialization
+    install:              install packages in [arguments]
+    update:               update all jannet software on the system
+    restore:              restore a previous jannet software version state
+    info:                 query information about installed software packages
+    info-projects:        query information about installed software projects
+    checklog:             update the installation log file if necessary
+    rpmnew:               remove superfluous rpmnew files and show conflicts
+                          for others
+    build-date:           show installed jannet packages along with build date
+    built-today:          show installed jannet packages that were built today
+    compile-templates:    compile templates
 
   global options are
 
@@ -90,7 +91,7 @@ list_packages()
 {
 	local names="$1"
 	local rpm_args
-	if [ "$names" ]; then
+	if [ -n "$names" ]; then
 		rpm_args="$rpm_args $names"
 	else
 		rpm_args="$rpm_args -a"
@@ -103,7 +104,7 @@ list_packages()
 
 list_projects()
 {
-	list_packages "$@" | xargs rpm -qa --queryformat '%{SOURCERPM}: %{URL}\n' | \
+	list_packages "$@" | xargs -r rpm -q --queryformat '%{SOURCERPM}: %{URL}\n' | \
 		sed 's/\(^[^ ]\+\) *:.*/\1/; s/[	 ]*$//; s/-[0-9]\+.*//' |\
 		sort -u
 }
@@ -113,7 +114,7 @@ cmd_rpmnew()
 	local file
 
 	list_packages "$@" |
-	xargs rpm -ql |
+	xargs -r rpm -ql |
 	while read file; do
 		if [ -e "$file.rpmnew" ]; then
 			if diff -q $file $file.rpmnew; then
@@ -137,7 +138,7 @@ cmd_diff()
 	local file
 
 	list_packages "$@" |
-	xargs rpm -qV |
+	xargs -r rpm -qV |
 	sed '/^....L\|^..5/ !d; s%[^/]*/%/%' |
 	while read file; do
 		if diff -q $file $file.rpmnew; then
@@ -158,7 +159,7 @@ cmd_diff()
 cmd_build_date()
 {
 	list_packages "$@" |
-		xargs rpm -q --queryformat '%{BUILDTIME} %{NAME}\n' |
+		xargs -r rpm -q --queryformat '%{BUILDTIME} %{NAME}\n' |
 		sort -n |
 		sed 's/-run\|-devel//' |
 		sort -u |
@@ -167,6 +168,45 @@ cmd_build_date()
 		done
 }
 
+cmd_compile_templates()
+{
+	local ext_from=".jw-tmpl"
+	local ext_to=""
+	local ext_tables=".jw-secret .jw-vars"
+	local group=root
+	local owner=root
+	local mode=600
+	local ext_from_re=`echo $ext_from | sed 's/\./\\./g'`
+
+	# TODO: allow target file attributes to be specified in options
+	umask 0077
+
+	local f
+	list_packages "$@" | xargs -r rpm -ql | while read f; do
+		echo searching $ext_from_re in $f
+		echo $f | grep -q "$ext_from_re$" || continue
+		local base=`echo $f | sed "s/$ext_from_re$//"`
+		local to=$base$ext_to
+		local table="" ext
+		for ext in $ext_tables; do
+			table=$base$ext
+			[ -f "$table" ] && break
+		done
+		[ -f $table ] || {
+			echo "WARNING: No key-value table found for template $f, not compiling." >&2
+			continue
+		}
+		# TODO: use mktemp -d and keep temporary files in read-only dir
+		local tmp=$to.tmp
+		echo "Applying macros in $table to $f."
+		sed 's|\([^ ]\+\) \(.*\)|s/\1/\2/g|' $table | sed -f - $f > $tmp
+		chmod $mode $tmp
+		chown $owner $tmp
+		chgrp $owner $tmp
+		mv $tmp $to
+	done
+}
+
 cmd_built_today()
 {
 	local today=`date +'%Y-%m-%d'`
@@ -222,9 +262,9 @@ checklog)
 	;;
 info)
 	if [ "$opt_verbose" = true ]; then
-		list_packages "$@" | xargs rpm -qi
+		list_packages "$@" | xargs -r rpm -qi
 	else
-		list_packages "$@" | xargs rpm -q
+		list_packages "$@" | xargs -r rpm -q
 	fi
 	;;
 info-projects)
@@ -238,6 +278,9 @@ cpp-glib)
 rpmnew)
 	cmd_rpmnew "$@"
 	;;
+compile-templates)
+	cmd_compile_templates "$@"
+	;;
 diff)
 	cmd_diff "$@"
 	;;
@@ -255,5 +298,3 @@ help)
 	;;
 
 esac
-
-