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Update dependency shellcheck to v0.9.0

John Jarvis requested to merge renovate/shellcheck-0.x into next

This MR contains the following updates:

Package Update Change
shellcheck minor 0.8.0 -> 0.9.0

Release Notes

koalaman/shellcheck

v0.9.0

Compare Source

Added
  • SC2316: Warn about 'local readonly foo' and similar (thanks, patrickxia!)
  • SC2317: Warn about unreachable commands
  • SC2318: Warn about backreferences in 'declare x=1 y=$x'
  • SC2319/SC2320: Warn when $? refers to echo/printf/[ ]/[[ ]]/test
  • SC2321: Suggest removing ((..)) in array\[((idx))]=val
  • SC2322: Suggest collapsing double parentheses in arithmetic contexts
  • SC2323: Suggest removing wrapping parentheses in a[(x+1)]=val
Fixed
  • SC2086: Now uses DFA to make more accurate predictions about values
  • SC2086: No longer warns about values declared as integer with declare -i
Changed
  • ShellCheck now has a Data Flow Analysis engine to make smarter decisions based on control flow rather than just syntax. Existing checks will gradually start using it, which may cause them to trigger differently (but more accurately).
  • Values in directives/shellcheckrc can now be quoted with '' or ""

Configuration

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