how to get LIC_FILES_CHKSUM for a github link?-CodePudding

Given below is the link for which I am creating a recipe, i want to add lic_files_chksum in .bb file how to find it or generate it. LIC_FILES_CHKSUM = ??????

https://github.com/kuscsik/streamfs/blob/master/LICENSE

How to get like these stuff "md5=801f80980d171dd6425610833a22dbe6" for any github links?? I have checked the license file in the link it only has License name and version(GLP 3.0) but i dint find LIC_FILES_CHKSUM.

Please give me details on how to find it for my link.

CodePudding user response：

The chksum is based on the md5 sum of the license file in any given repository. If you do 'md5sum [license-filename]', you will end up with your answer. There's a section in the yocto reference doc that explains this. https://www.yoctoproject.org/docs/1.2/poky-ref-manual/poky-ref-manual.html

CodePudding user response：

If your package have a license you need to specify it with its md5 checksum using:

LICENSE = ""
LIC_FILES_CHKSUM = ""

If you have no license, just specify the license to be closed, and no checksum is required:

LICENSE = "CLOSED"

If you specify a license file, it needs to be exists in the working directory of the recipe.

Then, you need to calculate the md5 checksum of the license file:

md5 LICENSE

And then, specify it in the recipe:

LICENSE = "GPL-3.0"
LIC_FILES_CHKSUM = "file://LICENSE;md5=xxxxx"

In addition, if you have a license in another file that contains other things, for example a header file with a commented license, you can specify the begin and the end line of the license, along with the checksum value as well:

LICENSE = "GPL-3.0"
LIC_FILES_CHKSUM = "file://example.h;beginline=1;endline=10;md5=xxxx"

Also, make note that the LIC_FILES_CHKSUM can hold many license files, like:

LIC_FILES_CHKSUM = "file://LICENSE;md5=xxxxx \
                    file://COPYING;md5=xxxxx
"