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Add POSIX checks for more Bash-specific variables (fixes #2093)

This commit is contained in:
Vidar Holen 2020-12-02 18:43:56 -08:00
parent 65044c2568
commit b625562d60
1 changed files with 7 additions and 1 deletions
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8
src/ShellCheck/Checks/ShellSupport.hs
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@ -417,9 +417,15 @@ checkBashisms = ForShell [Sh, Dash] $ \t -> do
(re $ "^[" ++ varChars ++ "*@]+(\\[.*\\])?/", 3060, "string replacement is")
]
bashVars = [
-- This list deliberately excludes $BASH_VERSION as it's often used
-- for shell identification.
"OSTYPE", "MACHTYPE", "HOSTTYPE", "HOSTNAME",
"DIRSTACK", "EUID", "UID", "SHLVL", "PIPESTATUS", "SHELLOPTS",
"_"
"_", "BASHOPTS", "BASHPID", "BASH_ALIASES", "BASH_ARGC",
"BASH_ARGV", "BASH_ARGV0", "BASH_CMDS", "BASH_COMMAND",
"BASH_EXECUTION_STRING", "BASH_LINENO", "BASH_REMATCH", "BASH_SOURCE",
"BASH_SUBSHELL", "BASH_VERSINFO", "EPOCHREALTIME", "EPOCHSECONDS",
"FUNCNAME", "GROUPS", "MACHTYPE", "MAPFILE"
]
bashDynamicVars = [ "RANDOM", "SECONDS" ]
dashVars = [ "_" ]