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authorLuke Shumaker <lukeshu@parabola.nu>2017-02-15 14:29:19 -0500
committerLuke Shumaker <lukeshu@parabola.nu>2017-04-05 14:09:14 -0400
commiteff2e50803c35a1cbbce572036c271df8c352d87 (patch)
tree353b99a03dc588b1d0a457d1b3c69b38a5af03ee /crossrepomove.in
parent55d5e061cb3d955faaf6ed291eb7294b84706a83 (diff)
downloaddevtools32-lukeshu/to-upstream/cleanup-20170402-rebase.tar.xz
lib/common.sh: Make it safe to include multiple times.lukeshu/to-upstream/cleanup-20170402-rebase
This is similar to common C #ifdef guards. I was tempted to wrap the entire thing in the if/fi, rather than use 'return' to bail early. However, that means it won't execute anything until after it reaches 'fi'. And if `shopt -s extglob` isn't executed before parsing, then it will syntax-error on the extended globs. One solution would have been to move `shopt -s extglob` up above the include-guard. But the committed solution is all-around simpler.
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