mattermost-channels/gen.sh

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#!/bin/sh
set -euo pipefail
export MM_SERVER=zeus.mattermost.gent
mattermost_name="Zeus Mattermost"
team_name="zeus"
dir="$(dirname "$0")"
out=mattermost_channels.html
custom_emoji_file="$(mktemp --tmpdir custom_emoji.XXXXXXXXXX.json)"
mmcli listcustomemoji | jq -s > "$custom_emoji_file"
jqo() {
json="$1"
shift 1
printf '%s' "$json" | jq -cr "$@" || { printf 'jq errored performing %s on this input: %s\n' "$*" "$json" >&2; }
}
htmlescape() {
sed 's/&/\&amp;/g; s/</\&lt;/g; s/>/\&gt;/g; s/"/\&quot;/g; s/'"'"'/\&#39;/g'
}
emoji() {
env --chdir "$dir" \
python3 "$dir/emoji.py" "$custom_emoji_file"
}
markdown() {
htmlescape | \
{ pandoc --from=markdown --to=html || printf "Markdown conversion failed\n" >&2; } | \
emoji
}
format_timestamp() {
format_str="$1"
xargs -Ixxx date --date "@xxx" "+$format_str"
}
channels="$(mmcli ls "$team_name" | jq -cs 'sort_by(- .last_post_at) | .[]')"
channel_count="$(jqo "$channels" -s 'length')"
substitute_vars() {
sed '
s/$lastupdated/'"$(date '+%Y-%m-%d %H:%M')"'/g
s/$mattermost_name/'"$mattermost_name"'/g
s/$team_name/'"$team_name"'/g
s/$channel_count/'"$channel_count"'/g
'
}
substitute_vars < "$dir"/header.html > "$out"
printf '%s\n' "$channels" | while IFS="" read -r chan || [ -n "$chan" ]; do
if [ "$(jqo "$chan" '.type')" != O ]; then continue; fi
name="$(jqo "$chan" '.name' | htmlescape)"
display_name="$(jqo "$chan" '.display_name' | htmlescape)"
purpose="$(jqo "$chan" '.purpose' | markdown)"
header="$(jqo "$chan" '.header' | markdown)"
create_at="$(jqo "$chan" '.create_at / 1000' | format_timestamp '%Y-%m-%d')"
last_post_at="$(jqo "$chan" '.last_post_at / 1000' | format_timestamp '%Y-%m-%d %H:%M')"
total_msg_count="$(jqo "$chan" '.total_msg_count')"
cat >> "$out" <<HERE
<div class="channel" id="channel_$name">
<h3><a href="https://mattermost.zeus.gent/zeus/$name">$display_name</a></h3>
<dl>
<dt>Channel purpose</dt>
<dd class="purpose">$purpose</dd>
<dt>Channel header</dt>
<dd class="header">$header</dd>
<dt>Channel created on</dt>
<dd class="create_at">$create_at</dd>
<dt>Last message</dt>
<dd class="last_post_at">$last_post_at</dd>
<dt>Total amount of messages</dt>
<dd class="total_msg_count">$total_msg_count</dd>
</dl>
</div>
HERE
done
substitute_vars < "$dir"/footer.html >> "$out"