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Using depth-first search, we collect some crude statistics about
directory tree types (e.g. regular files, directories, device special
files and so on) and print them out after serializing the tree.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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The "from dir" and from "from file" code, as well as the "sort file"
code is specific to gensquashfs, so move them there and the test
cases as well.
The medium term idea is to reduce libfstree to a stub, merge it into
the generic writer and ultimately hoist that into libsquashfs.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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A `flags` field and `priority` are added to all file information
structs. A news fstree function is introduced for parsing a "sort-file".
Each line in the file is space separated, and has the following format:
priority [flags] filename
Priority is a 64 bit number, flags are optional and filename can be put
in quotes if it is supposed to start or end with spaces. Single line
comments can be used.
The flags can be used to set block-processor flags (e.g. don't fragment,
or don't compress), as well as instructing the parser to use file
globbing to match the filename.
After parsing the file, the list of file info structure is sorted
according to the priority (default is 0) using a stable sort algorithm.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Always insert the tree nodes in the correct oder and remove the
post-process sorting step.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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In libfstree, add a function to add a hard link to the fstree. The
hard links stores the target in the data.target field, canonicalizes
the target and sets a sentinel mode. A second function is used to
resolve link, i.e. replacing it with a direct pointer, setting another
sentinel mode and increasing the targets link count.
The post process function tries to resolve unresolved hard links and
only allocates inode numbers for nodes that aren't hard links. If the
target node of a hard link does not have an inode number yet, the two
need to be swapped, since this is also the order in which they are
serialized.
The serialization function in libcommon simply has to skip hard link
nodes and when writing directory entries, use the inode num/ref of
the target node.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Instead of having 3 different functions for sorting the tree, numbering
the nodes and generating a file list, that all have to be used in the
right order, this commit merges them into a single "fstree_post_process"
function.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Same rational as for the dir-scanner code: It's actually the only user and
it is going to get a lot closer integerated with libsquashfs.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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It's actually the only user and the dir-scanner xattr code is going
to get a lot closer integerated with libsquashfs.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Remove all the library functions that no longer have any users.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Split the signel file up into several small ones and use a variable
for the public headers instead of duplicating them.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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