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Add warning for multi-digit FDs in posix/dash.

This commit is contained in:
Vidar Holen 2016-03-08 17:37:12 -08:00
parent e792d69293
commit 6af1aeb259
1 changed files with 3 additions and 0 deletions
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3
ShellCheck/Analytics.hs
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@ -610,6 +610,7 @@ prop_checkBashisms43= verify checkBashisms "trap foo sigint"
prop_checkBashisms44= verifyNot checkBashisms "#!/bin/dash\ntrap foo int"
prop_checkBashisms45= verifyNot checkBashisms "#!/bin/dash\ntrap foo INT"
prop_checkBashisms46= verify checkBashisms "#!/bin/dash\ntrap foo SIGINT"
prop_checkBashisms47= verify checkBashisms "#!/bin/dash\necho foo 42>/dev/null"
checkBashisms params = bashism
where
isDash = shellType params == Dash
@ -642,6 +643,8 @@ checkBashisms params = bashism
bashism (TA_Binary id "**" _ _) = warnMsg id "exponentials are"
bashism (T_FdRedirect id "&" (T_IoFile _ (T_Greater _) _)) = warnMsg id "&> is"
bashism (T_FdRedirect id ('{':_) _) = warnMsg id "named file descriptors are"
bashism (T_FdRedirect id num _)
| all isDigit num && length num > 1 = warnMsg id "FDs outside 0-9 are"
bashism (T_IoFile id _ word) | isNetworked =
warnMsg id "/dev/{tcp,udp} is"
where