On Sun, Jan 27, 2013 at 2:08 PM, Johannes Sixt <j...@kdbg.org> wrote: > Am 27.01.2013 22:24, schrieb David Aguilar: >> Use $(command "$arg") instead of "$(command "$arg")" as the latter is >> harder to read. > > If at all, you should restrict yourself to simplify only variable > assignments. Because this case: > >> - if test -z "$(get_merge_tool_cmd "$merge_tool")" && >> + if test -z $(get_merge_tool_cmd "$merge_tool") && > > cannot work as intended: If the output of $() is empty, then without the > outer quotes this becomes > > test -z > > without an operand for -z, which is a syntax error (of the test command).
Definitely. I learned this the hard way when the tests broke on me while working it ;-) My patch rewrites things to always use var=$(command) expressions with separate test "$var" evaluating them. Thanks for the tip, -- David -- To unsubscribe from this list: send the line "unsubscribe git" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
