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fix(FlowParams): improve the flow parameter detection to include template files #8

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Merged
reubenmiller merged 1 commit into from
Mar 12, 2026
Merged

fix(FlowParams): improve the flow parameter detection to include template files #8

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24 changes: 22 additions & 2 deletions src/inventory-scripts/70_FlowParams
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Original file line number Diff line number Diff line change
Expand Up @@ -7,18 +7,38 @@ set -e
TEDGE_CONFIG_DIR=${TEDGE_CONFIG_DIR:-/etc/tedge}
MAPPERS_DIR="$TEDGE_CONFIG_DIR/mappers"

find "$MAPPERS_DIR" -name params.toml | while read -r PARAMS_FILE; do
# find both the params.toml and params.toml.template files, but only
# process the template if the params.toml doesn't exist
find "$MAPPERS_DIR" -name "params.toml*" | while read -r PARAMS_FILE; do
DIR_NAME=$(dirname "$PARAMS_FILE")
case "$PARAMS_FILE" in
*/params.toml)
;;
*/params.toml.template)
# ignore the template file when there is already a params.toml file
if [ -f "$DIR_NAME/params.toml" ]; then
continue
fi
;;
esac

VALUES=$(jq --raw-input --null-input '[ inputs
| gsub("\r$"; "")
| select(length > 0 and (startswith("#") | not))
| split(" = "; "")
| select(length == 2)
| {(.[0]): (.[1] | fromjson)}
] | add' "$PARAMS_FILE")
] | add' "$PARAMS_FILE" || true)

if [ -z "$VALUES" ]; then
continue
fi

FLOW_DIR_RELATIVE=$(dirname "${PARAMS_FILE#"$MAPPERS_DIR"/}")
MAPPER=$(echo "$FLOW_DIR_RELATIVE" | cut -d/ -f1)
NAME=$(echo "$FLOW_DIR_RELATIVE" | cut -d/ -f3-)
if [ -n "$NAME" ]; then
echo "Publishing twin data: topic=te/device/main///twin/flow_params_${MAPPER}_$NAME, message=$VALUES" >&2
tedge mqtt pub --retain "te/device/main///twin/flow_params_${MAPPER}_$NAME" "$VALUES"
fi
done
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