From c4e03e9b5ec2b9301a98d0663887864d216889f5 Mon Sep 17 00:00:00 2001
From: Marcel Kapfer <opensource@mmk2410.org>
Date: Thu, 13 Mar 2025 19:04:02 +0100
Subject: [PATCH] =?UTF-8?q?=E2=9C=A8=20(img-scripts)=20Add=20downsize-for-?=
 =?UTF-8?q?web=20script?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 img-scripts/README.org                        | 15 +++++
 img-scripts/downsize-for-web.sh               | 59 +++++++++++++++++++
 .../social-media-framing.sh                   |  0
 social-media-framing/README.org               |  7 ---
 4 files changed, 74 insertions(+), 7 deletions(-)
 create mode 100644 img-scripts/README.org
 create mode 100755 img-scripts/downsize-for-web.sh
 rename {social-media-framing => img-scripts}/social-media-framing.sh (100%)
 delete mode 100644 social-media-framing/README.org

diff --git a/img-scripts/README.org b/img-scripts/README.org
new file mode 100644
index 0000000..914143a
--- /dev/null
+++ b/img-scripts/README.org
@@ -0,0 +1,15 @@
+#+title: Image Helper Scripts
+
+A collection of little bash scripts using [[https://imagemagick.org][ImageMagick]] and [[https://exiftool.org/][exiftool]] for adjusting images.
+
+** social-media-framing
+
+Preparing pictures for sharing on social networks. The image given as first argument is used as a source to create the following three variations:
+
+- No changes, except a maximum resolution of 1920px at the  longest edge (suffix =-regular=)
+- White border to make the image a 1920x1920px square (suffix =-square=)
+- White border to make the image a 1080x1920px portrait orientation "story" (suffix =-story=)
+
+** downsize-for-web
+
+Downsize given image (first argument) for web by converting it to WebP with a maximum resolution of 1920x1920px and a target size of about 350kb.
diff --git a/img-scripts/downsize-for-web.sh b/img-scripts/downsize-for-web.sh
new file mode 100755
index 0000000..6f3e296
--- /dev/null
+++ b/img-scripts/downsize-for-web.sh
@@ -0,0 +1,59 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+BOLD="\033[1m"
+INFO="\033[0;30m\033[47m"
+WORK="\033[0;30m\033[44m"
+DONE="\033[0;30m\033[42m"
+FAIL="\033[0;30m\033[41m"
+NC="\033[0m"
+
+log_info() {
+    echo -e "${INFO} INFO ${NC} $1"
+}
+
+log_work() {
+    echo -e "${WORK} WORK ${NC} $1"
+}
+
+log_done() {
+    echo -e "${DONE} DONE ${NC} $1"
+}
+
+log_fail() {
+    echo -e "${FAIL} FAIL ${NC} $1"
+}
+
+log_info "Welcome to the ${BOLD}downsize-for-web${NC} script."
+log_info "We're using the power of ${BOLD}imagemagick${NC} and ${BOLD}exiftool${NC}."
+
+set +u
+if [[ -z "$1" ]]; then
+    log_fail "Missing filename argument."
+    exit 1
+fi
+set -u
+
+if [[ ! -f "$1" ]]; then
+    log_fail "File with filename $1 not found."
+    exit 1
+fi
+
+filename="$(basename "$1")"
+path="$(dirname "$1")/${filename%%.*}"
+output="$path""-web.webp"
+
+if [[ -f "$final" ]]; then
+    log_done "A downsized image is already available."
+    exit
+fi
+
+log_work "Downsizing image…"
+convert "$1" -resize "1920x1920>" -define webp:target-size=350000 "$output"
+
+log_work "Fixing EXIF metadata"
+exiftool -q -tagsFromFile "$1" "$output"
+
+exiftool -q -delete_original! "$(dirname "$1")"
+log_done "Finished creating downsized web image."
diff --git a/social-media-framing/social-media-framing.sh b/img-scripts/social-media-framing.sh
similarity index 100%
rename from social-media-framing/social-media-framing.sh
rename to img-scripts/social-media-framing.sh
diff --git a/social-media-framing/README.org b/social-media-framing/README.org
deleted file mode 100644
index 6ce4972..0000000
--- a/social-media-framing/README.org
+++ /dev/null
@@ -1,7 +0,0 @@
-#+title: Social Media Framing
-
-A little bash script using [[https://imagemagick.org][ImageMagick]] and [[https://exiftool.org/][exiftool]] for preparing pictures for sharing on social networks. The image given as first argument is used as a source to create the following three variations:
-
-- No changes, except a maximum resolution of 1920px at the  longest edge (suffix =-regular=)
-- White border to make the image a 1920x1920px square (suffix =-square=)
-- White border to make the image a 1080x1920px portrait orientation "story" (suffix =-story=)