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Fail if run in POSIX compatability mode

This is mostly to detect if someone is running the script with "sh
./stack.sh" where sh is the bash-symlink that puts it in POSIX mode
(this can be invoked in other ways, but much less common).

In this case POSIXLY_CORRECT is set; so if we see that, bail out early
before we start hitting syntax errors.

Closes-Bug: #1430535
Change-Id: I7bbc4b0f656df9f6d9da2243c8caeb42d30ace95

Ian Wienand authored on 2015/03/11 07:45:59
Showing 1 changed files

stack.sh

History View file @ 4d74e0f

@@ -21,6 +21,13 @@
                      # Learn more and get the most recent version at http://devstack.org
                     +# check if someone has invoked with "sh"
                     +if [[ "${POSIXLY_CORRECT}" == "y" ]]; then
                     +    echo "You appear to be running bash in POSIX compatability mode."
                     +    echo "devstack uses bash features. \"./stack.sh\" should do the right thing"
                     +    exit 1
                     +fi
+                    +
                      # Make sure custom grep options don't get in the way
                      unset GREP_OPTIONS