Documentation on writing portable code for Git

On Wed, Jun 2, 2010 at 06:41, Johannes Sixt [off-list ref] wrote:

Am 6/2/2010 2:13, schrieb Brandon Casey:

quoted

 test_expect_success 'setup' '
-     unset GIT_PAGER GIT_PAGER_IN_USE &&
+     unset GIT_PAGER GIT_PAGER_IN_USE

Maybe we should terminate the line with ';' to document that it is a
deliberate choice that there is no '&&'?

(Split from the "ignore return status of shell's unset builtin"
thread)

It would be nice if there was documentation describing how to write
portable code for various parts of Git. Basically a bullet-point
aggregate of the subjects of various patches we keep getting from
users of IRIX, Solaris, HP-UX etc. E.g:

    * Use FOO=bar and then export FOO, not export FOO=bar

    * Don't check the return value of unset, Solaris ...

I could contribute some of these for Perl.