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#!/bin/sh
set -eu
mkdir -p static/preview static/thumbnail
resize() {
local photo=$1 size=$2 output=$3
if ! test -f $output; then
# FIXME: convert complains about not understanding XML
echo $output >&2
convert $photo -auto-orient -thumbnail $size $output 2>/dev/null ||:
fi
}
preview() {
local photo=$1
local preview=preview/${photo##*/}
resize $photo 25% static/$preview
echo $preview
}
thumbnail() {
local photo=$1
local thumbnail=thumbnail/${photo##*/}
resize $photo 5% static/$thumbnail
echo $thumbnail
}
encode() {
sed '
s/&/\&/g
s/</\</g
s/"/\"/g
' "$@"
}
page_title() {
date -j -f '%F' $1 '+%B %e, %Y'
}
page_head() {
local date=$1
local title=$(page_title $date)
cat <<-EOF
<!DOCTYPE html>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="alternate" type="application/atom+xml" href="../feed.atom">
<title>${title}</title>
<style>
html { color: #bbb; background-color: black; font-family: sans-serif; }
figure { margin: 1em; padding-top: 0.5em; text-align: center; }
img { max-width: calc(100vw - 2.5em); max-height: calc(100vh - 2.5em); }
details { max-width: 78ch; margin: 0.5em auto; }
</style>
<h1>${title}</h1>
EOF
}
photo_info() {
local photo=$1
ExposureTime=
FNumber=
FocalLength=
PhotographicSensitivity=
eval $(
identify -format '%[EXIF:*]' $photo 2>/dev/null |
grep -E 'ExposureTime|FNumber|FocalLength|PhotographicSensitivity' |
sed 's/^exif://'
)
}
photo_id() {
local photo=$1
photo=${photo##*/}
photo=${photo%%.*}
echo $photo
}
page_photo() {
local photo=$1 preview=$2 description=$3
if ! test -f $description; then
description=/dev/null
fi
photo_info $photo
cat <<-EOF
<figure id="$(photo_id $photo)">
<a href="${photo##*/}">
<img src="../${preview}" alt="$(encode $description)">
</a>
<figcaption>
${ExposureTime} ·
ƒ/$(bc -S 1 -e ${FNumber}) ·
$(bc -e ${FocalLength}) mm ·
${PhotographicSensitivity} ISO
<details>
<summary>description</summary>
$(encode $description)
</details>
</figcaption>
</figure>
EOF
}
index_head() {
cat <<-EOF
<!DOCTYPE html>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="alternate" type="application/atom+xml" href="feed.atom">
<title>Photos</title>
<style>
html { color: #bbb; background-color: black; font-family: sans-serif; }
a { text-decoration: none; color: inherit; }
</style>
EOF
}
index_page() {
local date=$1 root=${2:-}
cat <<-EOF
<h1><a href="${root}${root:+/}${date}/">$(page_title $date)</a></h1>
EOF
}
index_photo() {
local date=$1 photo=$2 thumbnail=$3 root=${4:-}
cat <<-EOF
<a href="${root}${root:+/}${date}/#$(photo_id $photo)">
<img src="${root}${root:+/}${thumbnail}">
</a>
EOF
}
Root=https://photo.causal.agency
atom_head() {
local updated=$(date -u '+%FT%TZ')
cat <<-EOF
<?xml version="1.0" encoding="utf-8"?>
<feed xmlns="http://www.w3.org/2005/Atom">
<title>Photos</title>
<author><name>june</name><email>june@causal.agency</email></author>
<link href="${Root}"/>
<link rel="self" href="${Root}/feed.atom"/>
<id>${Root}/</id>
<updated>${updated}</updated>
EOF
}
atom_entry_head() {
local date=$1
local updated=$(
date -ju -f '%s' $(stat -f '%m' static/${date}/index.html) '+%FT%TZ'
)
cat <<-EOF
<entry>
<title>$(page_title $date)</title>
<link href="${Root}/${date}/"/>
<id>${Root}/${date}/</id>
<updated>${updated}</updated>
<content type="html">
EOF
}
atom_entry_tail() {
cat <<-EOF
</content>
</entry>
EOF
}
atom_tail() {
cat <<-EOF
</feed>
EOF
}
set --
for date in 20*; do
mkdir -p static/${date}
page=static/${date}/index.html
if ! test -f $page; then
echo $page >&2
page_head $date >$page
for photo in ${date}/*.JPG; do
preview=$(preview $photo)
if ! test -f static/${photo}; then
ln $photo static/${photo}
fi
page_photo $photo $preview ${photo%.JPG}.txt >>$page
done
fi
set -- $date "$@"
done
echo static/index.html >&2
index_head >static/index.html
echo static/feed.atom >&2
atom_head >static/feed.atom
for date; do
index_page $date >>static/index.html
atom_entry_head $date >>static/feed.atom
for photo in ${date}/*.JPG; do
thumbnail=$(thumbnail $photo)
index_photo $date $photo $thumbnail >>static/index.html
index_photo $date $photo $thumbnail $Root | encode >>static/feed.atom
done
atom_entry_tail >>static/feed.atom
done
atom_tail >>static/feed.atom
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