system version fix

[dayne]

Checking out dagu and tried using the scripts/installer.sh to download latest release from Dagu Releases

Ran into a few bugs. First, a syntax error, then issues getting the correct URL to download the release file.

Debugging/tested on an Ubuntu 24.10 system.

Syntax issue:

./installer.sh
Downloading the latest binary to the current directory...
Downloading Dagu v1.16.1...
./installer.sh: 43: Bad substitution

Current URL build method

"$RELEASES_URL/download/$VERSION/${FILE_BASENAME}_${VERSION:1}_$(uname -s)_${ARCHITECTURE}.tar.gz" 

The tweaks to get rid of syntax issue & the correct URL for the file on the releases page:

• $(uname -s) is giving Linux but we need linux (lowercase)
• ${VERSION:1} is cause of Bad substitution` error.
• The second VERSION in the file name, not folder, needs to be just the version number without v prefixed, like so: v1.16.1 for folder, but 1.16.1 for the filename.

So, the tweaks are summarized as follows:

SYSTEM=$(uname -s | awk '{print tolower($0)}')
"$RELEASES_URL/download/$VERSION/${FILE_BASENAME}_${VERSION#v}_${SYSTEM}_${ARCHITECTURE}.tar.gz"

[yottahmd]

@dayne LGTM, thanks for improving the installation script!

Please let us know if you encounter any issues or find missing features while trying out Dagu!