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# BB Class inspired by ebuild.sh
#
# This class will test files after installation for certain
# security issues and other kind of issues.
#
# Checks we do:
#  -Check the ownership and permissions
#  -Check the RUNTIME path for the $TMPDIR
#  -Check if .la files wrongly point to workdir
#  -Check if .pc files wrongly point to workdir
#  -Check if packages contains .debug directories  or .so files where they should be in -dev or -dbg
#


#
# We need to have the scanelf utility as soon as
# possible and this is contained within the pax-utils-native
#


# We play a special package function
inherit package
PACKAGE_DEPENDS += "pax-utils-native"
PACKAGEFUNCS += " do_package_qa "

def package_qa_check_rpath(file,name,d):
    """
    Check for dangerous RPATHs
    """
    import bb, os
    scanelf = os.path.join(bb.data.getVar('STAGING_BINDIR_NATIVE',d,True),'scanelf')
    bad_dir = bb.data.getVar('TMPDIR', d, True) + "/work"
    if not os.path.exists(scanelf):
        bb.note("Can not check RPATH scanelf not found")
    if not bad_dir in bb.data.getVar('WORKDIR', d, True):
        bb.error("This class assumed that WORKDIR is ${TMPDIR}/work... Not doing any check")

    output = os.popen("%s -Byr %s" % (scanelf,file))
    txt    = output.readline().rsplit()
    if bad_dir in txt:
        bb.error("QA Issue package %s contains bad RPATH %s in file %s" % (name, txt, file))

    pass

def package_qa_check_devdbg(path, name,d):
    """
    Check for debug remains inside the binary or
    non dev packages containing
    """

    import bb
    if not "-dev" in name:
        if path[-3:] == ".so":
            bb.error("QA Issue: non dev package contains .so: %s" % name)

    if not "-dbg" in name:
        if '.debug' in path:
            bb.error("QA Issue: non debug package contains .debug directory: %s" % name)

def package_qa_check_perm(path,name,d):
    """
    Check the permission of files
    """
    pass

def package_qa_check_arch(path,name,d):
    """
    Check if archs are compatible
    """
    pass

def package_qa_check_pcla(path,name,d):
    """
    .pc and .la files should not point
    """

def package_qa_check_staged(path,d):
    """
    Check staged la and pc files for sanity
      -e.g. installed being false
    """
    pass

# Walk over all files in a directory and call func
def package_qa_walk(path, funcs, package,d):
    import os
    for root, dirs, files in os.walk(path):
        for file in files:
            path = os.path.join(root,file)
            for func in funcs:
                func(path, package,d)


def package_qa_check_rdepends(pkg, workdir, d):
    import bb	
    if not "-dbg" in pkg and not "task-" in pkg and not "-image" in pkg:
        # Copied from package_ipk.bbclass
        # boiler plate to update the data
        localdata = bb.data.createCopy(d)
        root = "%s/install/%s" % (workdir, pkg)

        bb.data.setVar('ROOT', '', localdata) 
        bb.data.setVar('ROOT_%s' % pkg, root, localdata)
        pkgname = bb.data.getVar('PKG_%s' % pkg, localdata, 1)
        if not pkgname:
            pkgname = pkg
        bb.data.setVar('PKG', pkgname, localdata)

        overrides = bb.data.getVar('OVERRIDES', localdata)
        if not overrides:
            raise bb.build.FuncFailed('OVERRIDES not defined')
        overrides = bb.data.expand(overrides, localdata)
        bb.data.setVar('OVERRIDES', overrides + ':' + pkg, localdata)

        bb.data.update_data(localdata)

        # Now check the RDEPENDS
        rdepends = explode_deps(bb.data.getVar('RDEPENDS', localdata, True) or "")


        # Now do the sanity check!!!
        for rdepend in rdepends:
            if "-dbg" in rdepend:
                bb.error("QA issue, koen give us a better msg!!!")

# The PACKAGE FUNC to scan each package
python do_package_qa () {
    bb.note("DO PACKAGE QA")
    workdir = bb.data.getVar('WORKDIR', d, True)
    packages = bb.data.getVar('PACKAGES',d, True)

    # no packages should be scanned
    if not packages:
        return

    for package in packages.split():
        bb.note("Package: %s" % package)
        path = "%s/install/%s" % (workdir, package)
        package_qa_walk(path, [package_qa_check_rpath, package_qa_check_devdbg, package_qa_check_perm, package_qa_check_arch], package, d)
        package_qa_check_rdepends(package, workdir, d)

}


# The Staging Func, to check all staging
addtask qa_staging after do_populate_staging before do_build
python do_qa_staging() {
    bb.note("Staged!")

    package_qa_check_staged(bb.data.getVar('STAGING_DIR',d,True), d)
}