nathanmcrae/create-file-message
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Add error handling for missing files

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Nathan McRae
2025-11-23 20:55:22 -08:00
parent a8ac4c2d06
commit 22aff9c6b2
1 changed files with 12 additions and 8 deletions
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20
create-file-message.sh
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@@ -1,19 +1,23 @@
#!/bin/env sh #!/bin/env sh
TEMPLATE_FILE="$(dirname "$0")/verify-script.template" TEMPLATE_FILE="$(dirname "$0")/verify-script.template"
#echo "template: $TEMPLATE_FILE" if [ ! -f "$TEMPLATE_FILE" ]; then
echo "'$TEMPLATE_FILE' not found. The template file should have come with this script." 1>&2
exit 1
fi
FILE_PATH="$1"
if [ ! -f "$FILE_PATH" ]; then
echo "'$FILE_PATH' not found" 1>&2
exit 1
fi
FILE_NAME="$(basename "$FILE_PATH")"
FILE_HASH="$(sha256sum "$FILE_PATH" | awk '{print $1}')"
# TODO: argument for the message in case you want to apply it to many files. # TODO: argument for the message in case you want to apply it to many files.
read -r -p "Enter message to sign for the file: " MESSAGE read -r -p "Enter message to sign for the file: " MESSAGE
MESSAGE="$MESSAGE\n" MESSAGE="$MESSAGE\n"
#echo "message: $MESSAGE"
FILE_NAME="$(basename "$1")"
#echo "file name: $FILE_NAME"
FILE_HASH="$(sha256sum "$FILE_NAME" | awk '{print $1}')"
#echo "file hash: $FILE_HASH"
SUBSTITUTED_TEMPLATE=$(sed -e "s!{message}!$MESSAGE!g" -e "s!{filename}!$FILE_NAME!g" -e "s!{filehash}!$FILE_HASH!g" "$TEMPLATE_FILE") SUBSTITUTED_TEMPLATE=$(sed -e "s!{message}!$MESSAGE!g" -e "s!{filename}!$FILE_NAME!g" -e "s!{filehash}!$FILE_HASH!g" "$TEMPLATE_FILE")
#echo "substituted: $SUBSTITUTED_TEMPLATE"
printf '%s' "$SUBSTITUTED_TEMPLATE" > "$1.sh" printf '%s' "$SUBSTITUTED_TEMPLATE" > "$1.sh"