From 120739bff3ca4716a435d79002606170669edf67 Mon Sep 17 00:00:00 2001
From: Marcel Kapfer <opensource@mmk2410.org>
Date: Tue, 10 Dec 2024 18:10:37 +0100
Subject: [PATCH] =?UTF-8?q?=E2=9C=A8=20(social-media-framing)=20Add=20scri?=
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 social-media-framing/README.org              |  7 ++
 social-media-framing/social-media-framing.sh | 82 ++++++++++++++++++++
 2 files changed, 89 insertions(+)
 create mode 100644 social-media-framing/README.org
 create mode 100755 social-media-framing/social-media-framing.sh

diff --git a/social-media-framing/README.org b/social-media-framing/README.org
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index 0000000..6ce4972
--- /dev/null
+++ b/social-media-framing/README.org
@@ -0,0 +1,7 @@
+#+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=)
diff --git a/social-media-framing/social-media-framing.sh b/social-media-framing/social-media-framing.sh
new file mode 100755
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+++ b/social-media-framing/social-media-framing.sh
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+#!/usr/bin/env bash
+
+set -euo pipefail
+
+INFO="\033[0;30m\033[47m"
+START="\033[0;30m\033[44m"
+DONE="\033[0;30m\033[42m"
+ERROR="\033[0;30m\033[41m"
+NC="\033[0m"
+
+log_info() {
+    echo -e "${INFO} INFO ${NC} $1"
+}
+
+log_start() {
+    echo -e "${START} START ${NC} $1"
+}
+
+log_done() {
+    echo -e "${DONE} DONE ${NC} $1"
+}
+
+log_error() {
+    echo -e "${ERROR} ERROR ${NC} $1"
+}
+
+log_info "Welcome to the social media framing script."
+log_info "We're using the power of imagemagick and exiftool"
+
+set +u
+if [[ -z "$1" ]]; then
+    log_error "Missing filename argument."
+    exit 1
+fi
+set -u
+
+if [[ ! -f "$1" ]]; then
+    log_error "File with filename $1 not found."
+    exit 1
+fi
+
+filename="$(basename "$1")"
+extension="${filename##*.}"
+path="$(dirname "$1")/${filename%%.*}"
+
+regular="$path""-regular.""$extension"
+square="$path""-square.""$extension"
+story="$path""-story.""$extension"
+
+if [[ ! -f "$regular" ]]; then
+    log_start "Creating regular framing"
+    magick "$1" -resize "1920x1920>" "$regular"
+    log_start "Fixing EXIF metadata"
+    exiftool -q -tagsFromFile "$1" "$regular"
+fi
+
+if [[ ! -f "$square" ]]; then
+    log_start "Creating square framing"
+    magick -define jpeg:size=1920x1920 "$1" \
+           -thumbnail '1890x1890' \
+           -gravity center \
+           -crop 1920x1920+0+0\! \
+           -flatten \
+           "$square"
+    log_start "Fixing EXIF metadata"
+    exiftool -q -tagsFromFile "$1" "$square"
+fi
+
+if [[ ! -f "$story" ]]; then
+    log_start "Creating story framing"
+    magick -define jpeg:size=1080x1920 "$1" \
+           -thumbnail '1050x1890' \
+           -gravity center \
+           -crop 1080x1920+0+0\! \
+           -flatten \
+           "$story"
+    log_start "Fixing EXIF metadata"
+    exiftool -q -tagsFromFile "$1" "$story"
+fi
+
+exiftool -q -delete_original! "$(dirname "$1")"
+log_done "Finished creating framed images"