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authorLuke Shumaker <lukeshu@parabola.nu>2017-04-02 10:10:02 +0200
committerJan Alexander Steffens (heftig) <jan.steffens@gmail.com>2017-04-05 22:14:20 +0200
commitc1a056c9a8f42e1a8e1f66b265b7ccbd1a2cb1ee (patch)
tree353b99a03dc588b1d0a457d1b3c69b38a5af03ee /rebuildpkgs.in
parent747e8ffc8d02bc8726d6f336ebbe7ecf05e9fd38 (diff)
downloaddevtools-c1a056c9a8f42e1a8e1f66b265b7ccbd1a2cb1ee.tar.gz
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lib/common.sh: Make it safe to include multiple times.
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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