Pattern Matching for gh release download #8809

--pattern uses Go filepath.Match, not bash extglob. Patterns like *(a|b) and | will not match. Pass each exact name (or a simple glob) with its own -p.

gh release download TAG \
  -p "RPS.Payments.Abstractions_01.00.04_Install_dev.zip" \
  -p "RPS.Payments_03.02.02_Install_dev.zip"

If every asset you want shares a suffix:

gh release download TAG -p "*_Install_dev.zip"

Supported metacharacters are *, ?, and [...] only. No **, no alternation, no brace expansion. Multiple -p values are OR'd in matchAny. On Windows, keep patterns in double quotes so cmd or PowerShell does not expand them.

Checked pkg/cmd/release/download/download.go and gh release download --help.

gh release download pattern matching uses Go's filepath.Match rules — not full regex and not bash-style alternation with |.

What works

filepath.Match supports * and ? only. For your files, download individually or use a broader * and filter locally:

# Download all matching a prefix, filter in shell
gh release download TAG --pattern "RPS.Payments*.zip"

# Or download specific files by exact name (repeat --pattern)
gh release download TAG `
  --pattern "RPS.Payments.Abstractions_01.00.04_Install_dev.zip" `
  --pattern "RPS.Payments_03.02.02_Install_dev.zip"

What does NOT work

*(RPS.Payments.Abstractions_01.00.04_Install_dev|RPS.Payments_03.02.02_Install_dev).zip

Parentheses and | are literal characters in filepath.Match, not grouping/alternation.

Workaround on Windows

gh release download TAG --pattern "*.zip"
Get-ChildItem *.zip | Where-Object {
  $_.Name -match 'Abstractions_01\.00\.04_Install_dev|Payments_03\.02\.02_Install_dev'
}

Tip

Run gh release view TAG --json assets --jq '.assets[].name' first to confirm exact asset names (case and underscores matter).