From 90896bcfeb4e55c78d9a15700a6a4580f0df6365 Mon Sep 17 00:00:00 2001
From: Wojtek Kosior <koszko@koszko.org>
Date: Thu, 5 Aug 2021 20:44:25 +0200
Subject: enable modularization of html files

---
 build.sh             | 41 +++++++----------------------------------
 copyright            |  2 +-
 process_html_file.sh | 33 +++++++++++++++++++++++++++++++++
 shell_utils.sh       | 39 +++++++++++++++++++++++++++++++++++++++
 4 files changed, 80 insertions(+), 35 deletions(-)
 create mode 100755 process_html_file.sh
 create mode 100644 shell_utils.sh

diff --git a/build.sh b/build.sh
index 60c1863..d940176 100755
--- a/build.sh
+++ b/build.sh
@@ -3,36 +3,7 @@
 # Copyright (C) 2021 Wojtek Kosior
 # Redistribution terms are gathered in the `copyright' file.
 
-ENDL="
-"
-
-errcho() {
-    echo "$@" >&2
-}
-
-map_set_instr() {
-    echo "$1__$2='$3'"
-}
-
-map_set() {
-    eval "$(map_set_instr "$@")"
-}
-
-map_get() {
-    eval "echo \"\$$1__$2\""
-}
-
-map_del_instr() {
-    echo "unset $1__$2"
-}
-
-map_del() {
-    eval "$(map_del_instr "$@")"
-}
-
-sanitize() {
-    echo "$1" | tr /.- _
-}
+. ./shell_utils.sh
 
 handle_export_line() {
     if [ "x$1" = "xEXPORTS_START" ]; then
@@ -259,11 +230,13 @@ s^_BGSCRIPTS_^$BGSCRIPTS^
 s^_CONTENTSCRIPTS_^$CONTENTSCRIPTS^" \
 	< manifest.json > $BUILDDIR/manifest.json
 
-    sed "s^_POPUPSCRIPTS_^$POPUPSCRIPTS^" \
-	< html/display-panel.html > $BUILDDIR/html/display-panel.html
+    ./process_html_file.sh html/display-panel.html |
+	sed "s^_POPUPSCRIPTS_^$POPUPSCRIPTS^" \
+	    > $BUILDDIR/html/display-panel.html
 
-    sed "s^_OPTIONSSCRIPTS_^$OPTIONSSCRIPTS^" \
-	< html/options.html > $BUILDDIR/html/options.html
+    ./process_html_file.sh html/options.html |
+	sed "s^_OPTIONSSCRIPTS_^$OPTIONSSCRIPTS^" \
+	    > $BUILDDIR/html/options.html
 
     for FILE in $SCRIPTS; do
 	FILEKEY=$(sanitize "$FILE")
diff --git a/copyright b/copyright
index 36340e4..96de092 100644
--- a/copyright
+++ b/copyright
@@ -6,7 +6,7 @@ Files: *
 Copyright: 2021 Wojtek Kosior <koszko@koszko.org>
 License: GPL-3+-javascript or Alicense-1.0
 
-Files: re-generate_icons.sh build.sh
+Files: *.sh
 Copyright: 2021 Wojtek Kosior <koszko@koszko.org>
    2021 jahoti <jahoti@tilde.team>
 License: CC0
diff --git a/process_html_file.sh b/process_html_file.sh
new file mode 100755
index 0000000..1ed0295
--- /dev/null
+++ b/process_html_file.sh
@@ -0,0 +1,33 @@
+#!/bin/sh
+
+# Copyright (C) 2021 Wojtek Kosior
+# Redistribution terms are gathered in the `copyright' file.
+
+# Call like:
+#     ./process_html_file.sh html/options.html
+
+. ./shell_utils.sh
+
+FILE="$1"
+FILEKEY=$(sanitize "$FILE")
+
+if [ "x$(map_get HTML_FILENAMES $FILEKEY)" = "xyes" ]; then
+    errcho "import loop on $FILE"
+    exit 1
+fi
+
+map_set_export HTML_FILENAMES $FILEKEY yes
+
+awk '\
+!/^[\t\r ]*<IMPORT[\t\r ]+([^\t\r ]+)[\t\r ]+\/>[\t\r ]*$/{
+	print $0;
+}
+/^[\t\r ]*<IMPORT[\t\r ]+([^\t\r ]+)[\t\r ]+\/>[\t\r ]*$/{
+    indent = substr($0, 1, index($0, "<") - 1);
+    command = "./process_html_file.sh " $2;
+    while (command | getline) {
+        print indent $0;
+    }
+    if (close(command) != 0)
+        exit 1;
+}' < "$FILE"
diff --git a/shell_utils.sh b/shell_utils.sh
new file mode 100644
index 0000000..95e0d4e
--- /dev/null
+++ b/shell_utils.sh
@@ -0,0 +1,39 @@
+# Copyright (C) 2021 Wojtek Kosior
+# Redistribution terms are gathered in the `copyright' file.
+
+# This file is meant to be sourced in sh.
+
+ENDL="
+"
+
+errcho() {
+    echo "$@" >&2
+}
+
+map_set_instr() {
+    echo "$1__$2='$3'"
+}
+
+map_set() {
+    eval "$(map_set_instr "$@")"
+}
+
+map_set_export() {
+    eval "export $(map_set_instr "$@")"
+}
+
+map_get() {
+    eval "echo \"\$$1__$2\""
+}
+
+map_del_instr() {
+    echo "unset $1__$2"
+}
+
+map_del() {
+    eval "$(map_del_instr "$@")"
+}
+
+sanitize() {
+    echo "$1" | tr /.- _
+}
-- 
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