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Fix issues with image2card.sh

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Changes:
  - Fix invalid json generated by image2card.sh (s/,/:/)
  - Make sure that image conversion works when supplied images
    are not JPG.
  - Adjust comments based on the current documentation:
    https://owntracks.org/booklet/features/card/#shell-script
This commit is contained in:
Jiri Mencak
2025-01-02 10:06:21 +01:00
parent 6071384acd
commit 50fb4b6016
1 changed files with 4 additions and 4 deletions
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contrib/faces/image2card.sh
+4 -4
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@@ -20,14 +20,14 @@
# Usage: image2card imagefile "full name" tid
#
# Requires `convert' from ImageMagick.
# Read image, convert to PNG, forcing a 192x192 size and encode
# Read image, convert to JPG, forcing a 192x192 size and encode
# to BASE64. Create a JSON payload to be published to
# owntracks/username/device/info
#
# You probably want to do this:
#
# image2card.sh filename.jpg "Jane Jolie" "JJ" > card.json
# mosquitto_pub -t owntracks/jane/phone/info -f card.json -r
# mosquitto_pub -t owntracks/jane/phone/info -f card.json -r -q 2
#
# Note: the two commands cannot be piplelined (mosquitto_pub -l)
# because of a bug in mosquitto_pub: https://bugs.eclipse.org/bugs/show_bug.cgi?id=478917
@@ -42,9 +42,9 @@ tid="$3"
base64switch=""
base64check=$(echo "jj" | base64 -w 0 > /dev/null 2>&1)
[ "$?" -eq "0" ] && base64switch="-w 0"
imgdata=$(magick "${imagefile}" -resize '192x192!' - | base64 $base64switch)
imgdata=$(magick "${imagefile}" -resize '192x192!' JPG:- | base64 $base64switch)
cat <<EndOfFile
{"_type":"card","tid","${tid}", "name":"${fullname}","face":"${imgdata}"}
{"_type":"card","tid":"${tid}", "name":"${fullname}","face":"${imgdata}"}
EndOfFile