1 files changed, 51 insertions, 0 deletions
diff --git a/test/runLint b/test/runLint
new file mode 100755
index 0000000..95c3887
--- /dev/null
+++ b/test/runLint
@@ -0,0 +1,51 @@
+#!/bin/bash -u
+
+gitgrep()
+{
+    local out=$(git grep -I -P -n "$1" |
+        grep -E '^(bash_completion|completions/|test/)' |
+        grep -Ev "^test/runLint\>${filter_out:+|$filter_out}")
+    if [ -n "$out" ]; then
+        printf '***** %s\n' "$2"
+        printf '%s\n\n' "$out"
+    fi
+}
+
+unset CDPATH
+cd $(dirname "$0")/..
+
+cmdstart='(^|[[:space:]]|\()'
+filter_out=
+
+gitgrep $cmdstart"awk\b.*-F([[:space:]]|[[:space:]]*[\"'][^\"']{2,})" \
+    'awk with -F char or -F ERE, use -Fchar instead (Solaris)'
+
+gitgrep $cmdstart"awk\b.*\[:[a-z]*:\]" \
+    'awk with POSIX character class not supported in mawk (Debian/Ubuntu)'
+
+gitgrep $cmdstart'sed\b.*\\[?+]' \
+    'sed with ? or +, use POSIX BRE instead (\{m,n\})'
+
+gitgrep $cmdstart'sed\b.*\\\|' \
+    "sed with \|, use POSIX BRE (possibly multiple sed invocations) or another tool instead"
+
+# TODO: really nonportable? appears to work fine in Linux, FreeBSD, Solaris
+#gitgrep $cmdstart'sed\b.*;' \
+#    'sed with ;, use multiple -e options instead (POSIX?) (false positives?)'
+
+gitgrep $cmdstart'sed\b.*[[:space:]]-[^[:space:]]*[rE]' \
+    'sed with -r or -E, drop and use POSIX BRE instead'
+
+gitgrep $cmdstart'[ef]grep\b' \
+    '[ef]grep, use grep -[EF] instead (historical/deprecated)'
+
+# TODO: $ in sed subexpression used as an anchor (POSIX BRE optional, not in
+#       Solaris/FreeBSD)
+
+gitgrep '(?<!command)'$cmdstart'(grep|ls|sed)(\s|$)' \
+    'invoke grep, ls, and sed through "command", e.g. "command grep"'
+
+gitgrep '<<<' 'herestrings use temp files, use some other way'
+
+filter_out='^(test/|bash_completion\.sh)' gitgrep ' \[ ' \
+    'use [[ ]] instead of [ ]'