Add crx creation script (untested)

3 files changed, 32 insertions, 8 deletions

diff --git a/Makefile b/Makefile
index 0564ee6..f754f33 100644
--- a/Makefile
+++ b/Makefile
@@ -42,9 +42,8 @@ crx: simplyread.js chromium/icon.svg chromium/manifest.json chromium/background.
 	@cp COPYING simplyread.js chromium/background.html chromium-build/
 	@rsvg chromium/icon.svg chromium-build/icon.png
 	@sed "s/VERSION/$(VERSION)/g" < chromium/manifest.json > chromium-build/manifest.json
-	@chromium-browser --pack-extension=chromium-build
-	@mv chromium-build.crx $(NAME)-$(VERSION).crx
-	@rm -r chromium-build chromium-build.pem
+	@sh chromium/makecrx.sh chromium-build chromium/private.pem > $(NAME)-$(VERSION).crx
+	@rm -r chromium-build
 	@gpg -b < $(NAME)-$(VERSION).crx > $(NAME)-$(VERSION).crx.sig
 	@echo $(NAME)-$(VERSION).crx $(NAME)-$(VERSION).crx.sig
 
diff --git a/TODO b/TODO
index 20edcf8..d875f8d 100644
--- a/TODO
+++ b/TODO
@@ -1,6 +1,2 @@
-chromium extension http://code.google.com/chrome/extensions/index.html
-	use a simple script to create crx rather than chromium-browser
-		http://code.google.com/chrome/extensions/crx.html
-	is the script src=simplyread in background.html necessary?
-	handle signing extension properly
+chromium: is the script src=simplyread in background.html necessary?
 make tests, which process sample html files and check the output
diff --git a/chromium/makecrx.sh b/chromium/makecrx.sh
new file mode 100755
index 0000000..ca97835
--- /dev/null
+++ b/chromium/makecrx.sh
@@ -0,0 +1,29 @@
+#!/bin/sh
+#
+# Purpose: Pack a Chromium extension directory into crx format
+#
+# Based on bash script at:
+# http://code.google.com/chrome/extensions/crx.html
+# Licensed under the BSD license
+
+test $# -ne 2 && echo "Usage: $0 dir pem" && exit 1
+
+dir=$1
+key=$2
+pub="pubkey"
+sig="sig"
+zip="tmp.zip"
+trap 'rm -f "$pub" "$sig" "$zip"' EXIT
+
+wd=`pwd` && cd "$dir" && zip -qr -9 -X "$wd/$zip" . ; cd "$wd"
+
+openssl sha1 -sha1 -binary -sign "$key" < "$zip" > "$sig"
+openssl rsa -pubout -outform DER < "$key" > "$pub" 2>/dev/null
+
+crmagic_hex="4372 3234" # Cr24
+version_hex="0200 0000" # 2
+pub_len_hex=`stat -c %s "$pub" | xargs printf '%08x\n' | rev | dd conv=swab 2>/dev/null`
+sig_len_hex=`stat -c %s "$sig" | xargs printf '%08x\n' | rev | dd conv=swab 2>/dev/null`
+
+echo "$crmagic_hex $version_hex $pub_len_hex $sig_len_hex" | xxd -r -p
+cat "$pub" "$sig" "$zip"