misc/flag-icons: supply three flag decoration flavors

- Add 16px height missing from the initial check-in
- Factor out common shell code into simple() function
  and feed it with specifics; rounded() is special as
  it does more complicated image transformations

1 files changed, 34 insertions, 2 deletions

diff --git a/misc/flag-icons/files/makeflags.sh b/misc/flag-icons/files/makeflags.sh
index ea16f8edd252..160212b7c673 100644
--- a/misc/flag-icons/files/makeflags.sh
+++ b/misc/flag-icons/files/makeflags.sh
@@ -1,5 +1,37 @@
+simple()
+{
+	local comment convert_extra_args destdir height ratio subdir t0 width
+
+	comment=$1; convert_extra_args=$2; destdir=$3; shift 3
+
+	for subdir in ?x?; do
+		ratio=${subdir%x*}/${subdir#*x}
+		for height; do
+			width=$((height * $ratio))
+			mkdir -p "$destdir/${width}x${height}"
+			echo -n "Generating $comment flags ${width}x${height}... "
+			t0=$(date +%s)
+			for flag in $subdir/*.svg; do
+				convert -resize ${width}x${height} $convert_extra_args \
+				"$flag" "$destdir/${width}x${height}/$(basename "$flag" svg)png"
+			done
+			echo "finished in $(date -ur $((`date +%s`-t0)) +%M:%S)"
+		done
+	done
+}
+
+plain()
+{
+	simple undecorated -strip "$@"
+}
+
+bordered()
+{
+	simple black-bordered '-shave 1x1 -bordercolor black -border 1 -strip' "$@"
+}
+
 # https://joeldare.com/rounding-image-corners-with-imagemagick
-rounded_corners()
+rounded()
 {
 	local destdir height mask radius ratio subdir t0 width
 
@@ -18,7 +50,7 @@ rounded_corners()
 
 			mkdir -p "$destdir/${width}x${height}"
 
-			echo -n "Generating flags ${width}x${height}... "
+			echo -n "Generating rounded corner flags ${width}x${height}... "
 			t0=$(date +%s)
 			for flag in $subdir/*.svg; do
 				convert -resize ${width}x${height} \