On 12/12/2012 11:27 AM, Robert P. J. Day wrote: > > a bit more pedantry, but is there a more complete example of the use > of BBMASK than the trivial example in the ref and dev manuals? > > the ref manual provides this example by way of explanation: > > BBMASK = ".*/meta-ti/recipes-misc/" > > well, ok, except you occasinally find slight variations like: > > BBMASK = "meta-ti/recipes-misc/" > > or > > BBMASK = "meta-ti/recipes-misc" > > given that there are places where a trailing slash is significant, > are all of the above exactly equivalent? if so, that's worth noting. > > also, what about an example showing masking out a couple > directories, or perhaps a single recipe from a layer, and so on? at > the moment, the manuals suggest you can mask multiple recipes but > nowhere do i see the reader being given an actual example of how to do > that.
Indeed. These would be good clarifications. The manual says that this is a single python regular expression. Hence, when masking multiple directories or recipes, you use a vertical bar to separate the regex fragments. Here's a particularly complex case I used once: BBMASK = "meta-ti/recipes-misc|meta-ti/recipes-ti/packagegroup" BBMASK .= "|.*meta-oe/recipes-support" #BBMASK .= "|.*openldap" #BBMASK .= "|.*opencv" #BBMASK .= "|.*lzma" BBMASK .= "|meta-oe/recipes-core/packagegroups" BBMASK .= "|meta-oe/recipes-devtools" BBMASK .= "|meta-oe/recipes-extended" BBMASK .= "|meta-oe/recipes-multimedia" BBMASK .= "|meta-oe/recipes-navigation" BBMASK .= "|meta-oe/recipes-connectivity" BBMASK .= "|meta-oe/recipes-graphics" BBMASK .= "|meta-oe/recipes-qt" I don't know if the .= with leading bar is the optimal way to append on to BBMASK, but it seems fairly straightforward to me. I sometimes use the leading ".*" and sometimes not. In my setup it seems to not be required, but maybe for flexibility it should be used. I'm not sure -- it would depend on wheter python re.match or re.search is used for the regex. -- Tim ============================= Tim Bird Architecture Group Chair, CE Workgroup of the Linux Foundation Senior Staff Engineer, Sony Network Entertainment ============================= _______________________________________________ yocto mailing list yocto@yoctoproject.org https://lists.yoctoproject.org/listinfo/yocto
