build: Generate Edge moderator info

meta/edge-info.template

@@ -0,0 +1,5 @@
+Thanks for your review :-).
+
+Changes in this release: https://github.com/matatk/landmarks/blob/master/CHANGELOG.md#CHANGELOG_ANCHOR
+
+There are no accounts or other credentials. The main means of interaction with the extension are via the browserAction and keyboard shortcuts (which are detailed in the Help page, accessible via the browserAction).

meta/build-info-and-downlaod.sh → meta/moderator-info-and-source-code.sh

@@ -1,5 +1,6 @@
 #!/bin/sh
-in='meta/build-info.template'
+build_info='meta/build-info.template'
+edge_info='meta/edge-info.template'
 tag=$(git describe --tags --abbrev=0)
 changelog_line=$(grep "$tag" CHANGELOG.md)
 changelog_date=$(echo "$changelog_line" | grep -Eo '\d{4}-\d{2}-\d{2}')
@@ -14,8 +15,14 @@ make_info_for_browser() {
 		-e "s/VERSION_NUMBER/$tag/g" \
 		-e "s/BROWSER_PRETTY/$browser_pretty/g" \
 		-e "s/BROWSER_VAR/$browser_var/g" \
-		< $in
-}
+		< $build_info
+	}
+
+make_info_for_edge() {
+	sed \
+		-e "s/CHANGELOG_ANCHOR/$changelog_anchor/g" \
+		< $edge_info
+	}
 
 echo // Firefox
 echo
@@ -27,11 +34,21 @@ echo
 make_info_for_browser Opera opera
 echo
 echo
+echo // Edge
+echo
+make_info_for_edge
+echo
+echo
 
 github_zip_file=$tag.zip
 github_code_url="https://github.com/matatk/landmarks/archive/$github_zip_file"
-echo "Downloading <$github_code_url>..."
-curl \
-	--location "$github_code_url" \
-	--remote-name \
-	--remote-header-name
+local_source_file="landmarks-$github_zip_file"
+if [ ! -f "$local_source_file" ]; then
+	echo "Downloading <$github_code_url>..."
+	curl \
+		--location "$github_code_url" \
+		--remote-name \
+		--remote-header-name
+else
+	echo "$local_source_file already exists; skipping download"
+fi