35519c kdump-lib-initramfs.sh: prepare to be a POSIX compatible lib

Authored and Committed by liutgnu 3 years ago
    kdump-lib-initramfs.sh: prepare to be a POSIX compatible lib
    
    upstream: fedora
    resolves: bz2003832
    conflict: none
    
    commit a5faa052d4969cb66719d0b795d746449d3c71b7
    Author: Kairui Song <kasong@redhat.com>
    Date:   Tue Sep 14 03:25:46 2021 +0800
    
        kdump-lib-initramfs.sh: prepare to be a POSIX compatible lib
    
        Move all functions needed in the second kernel from kdump-lib.sh
        to kdump-lib-initramfs.sh, and update shebang headers.
    
        Now, kdump-lib-initramfs.sh is an independent lib script, no longer
        depend on kdump-lib.sh, and kdump-lib.sh is no longer needed for
        the second kernel.
    
        In later commits, functions in kdump-lib-initramfs.sh will be reworked
        to be POSIX compatible, kdump-lib.sh will contain bash only functions.
    
        POSIX shell have very limited features, eg. `local` keyword doesn't
        exist in POSIX but we rely on that heavily. So kdump-lib.sh will
        use bash syntax and contain the most complex helper and codes.
    
        kdump-lib-initramfs.sh will contain the minimum set of helpers,
        and be shared by both the first and second kernel.
    
        Signed-off-by: Kairui Song <kasong@redhat.com>
        Acked-by: Philipp Rudo <prudo@redhat.com>
    
    Signed-off-by: Tao Liu <ltao@redhat.com>
    
        
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