On Wednesday 01 May 2013 19:13:19 seth bollinger wrote: > I recently ran into a problem in > meta-raspberrypi/classes/sdcard_image-rpi.bbclass > > The following was run through my default debian dash shell (I thought I > switched a while back, but I must have reverted my VM image or > something...). > > # If SDIMG_ROOTFS_TYPE is a .xz file use xzcat > if [[ "$SDIMG_ROOTFS_TYPE" == *.xz ]] > then > > The bash specific syntax ([[) failed in dash causing the "else" path to > be traversed instead of the correct "then" path. The failure was silent > and resulted in a blind copy of a compressed rootfs to the sdcard > image. Of course this didn't run. :) > > 1. Is there particular shell syntax that class files should stick too?
No bashisms should be used, so the above should really be changed. > 2. I couldn't find a wildcard string search in dash. Can anyone > suggest a more shell agnostic way to do this? AFAIK grep or awk is the only way. > 3. Is there a way to guarantee we're running in bash if we're using > bash specific syntax? Not that I'm aware of. Cheers, Paul -- Paul Eggleton Intel Open Source Technology Centre _______________________________________________ yocto mailing list [email protected] https://lists.yoctoproject.org/listinfo/yocto
