Select release asset by mask

[zeegin]

If we are downloading by latest tag, we cannot know full file name before had download assets release information. Is useful case when some assets contains version number.

[Legion2]

We can implement it using the Regular expressions of jq. Then the first asset machting the given expression will by downloaded for the given tag.

[derhuerst]

I just stumbled upon this while trying to download the latest Linux x64 qsv binary. I came up with the same script:

set -e
set -o pipefail

releases_url='https://api.github.com/repos/jqnatividad/qsv/releases/latest'
assets_url="$(
	curl "$releases_url" -H 'Accept: application/json' -L -s \
	| jq -r '.assets_url'
)"
qsv_x64_url="$(
	curl "$assets_url" -H 'Accept: application/json' -L -s \
	| jq -r '.[] | select(.name | test("qsv-[0-9.]+-x86_64-unknown-linux-gnu.zip")) | .browser_download_url'
)"