40 lines
1.2 KiB
Bash
Executable File
40 lines
1.2 KiB
Bash
Executable File
#!/bin/sh
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#
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# Check if a given custom skeleton or overlay complies to the merged /usr
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# requirements:
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# /
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# /bin -> usr/bin
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# /lib -> usr/lib
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# /sbin -> usr/sbin
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# /usr/bin/
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# /usr/lib/
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# /usr/sbin/
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#
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# Output: the list of non-compliant paths (empty if compliant).
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#
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# Extract the inode numbers for all of those directories. In case any is
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# a symlink, we want to get the inode of the pointed-to directory, so we
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# append '/.' to be sure we get the target directory. Since the symlinks
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# can be anyway (/bin -> /usr/bin or /usr/bin -> /bin), we do that for
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# all of them.
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#
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lib_inode=$(stat -c '%i' "${1}/lib/." 2>/dev/null)
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bin_inode=$(stat -c '%i' "${1}/bin/." 2>/dev/null)
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sbin_inode=$(stat -c '%i' "${1}/sbin/." 2>/dev/null)
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usr_lib_inode=$(stat -c '%i' "${1}/usr/lib/." 2>/dev/null)
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usr_bin_inode=$(stat -c '%i' "${1}/usr/bin/." 2>/dev/null)
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usr_sbin_inode=$(stat -c '%i' "${1}/usr/sbin/." 2>/dev/null)
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not_merged_dirs=""
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test -z "$lib_inode" || \
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test "$lib_inode" = "$usr_lib_inode" || \
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not_merged_dirs="/lib"
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test -z "$bin_inode" || \
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test "$bin_inode" = "$usr_bin_inode" || \
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not_merged_dirs="$not_merged_dirs /bin"
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test -z "$sbin_inode" || \
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test "$sbin_inode" = "$usr_sbin_inode" || \
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not_merged_dirs="$not_merged_dirs /sbin"
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echo "${not_merged_dirs# }"
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