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2020-03-22doxygen: add rudmentary main page to the API reference manualDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-02-27Add initial benchmark data and discussionDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-02-22Try to clarify the parallel block processor documentationDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-02-21Clarify directory header counter in format documentationDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-02-21Update documentationDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-02-17Write up some thoughts on the thread pool based block processorDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-01-19Update explanation on directory index accountingDavid Oberhollenzer
Tests with the Debian image (which is generated with squashfs-tools, so should be interpreted as ground truth) have showed that the count is not stored off-by-one. The code was already doing the right thing, but the documentation was wrong. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-01-11Some clarifications and fixes for the format specificationDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-01-04Add a write-up on the on-disk formatDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-23Extend sqfs2tar to preserve hard linksDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-22Add hard link support to gensquashfs and tar2sqfsDavid Oberhollenzer
In libtar, set a special flag if the header is actually a hard link. In tar2sqfs, create a hard link node and skip the rest for hard links. Also refues to set the root attributes from a hard link, it may refere to a node that we have missed earlier, there is nothing else that we can do here. In fstree_from_file, add a "link" command for adding hard links. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-19Fix spelling mistakes found by lintianBenjamin Drung
Signed-off-by: Benjamin Drung <benjamin.drung@cloud.ionos.com>
2019-12-02Update man pagesDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-02Add a --root-becomes option to tar2sqfs and sqfs2tarDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-10-06Update tar2sqfs and sqfs2tar man pageDavid Oberhollenzer
- Add recent changes - Fix spelling and similar mistakes - Remove outdated/contradictory stuff - Consistent spelling of SquashFS - Simplify some formulations Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-20sqfsdiff: remove squashfs-to-dir & dir-to-dir comparisonsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-20Remove parallel unpackingDavid Oberhollenzer
Parallel unpacking didn't really improve the speed that much. Actually sorting the files for optimized unpack order improved speed much more than the parallel unpacker. Furthermore, the fork based parallel unpacker was actually pretty messy to begin with. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-10Make the thread pool queue backlog user configurableDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-08-21Update man pagesDavid Oberhollenzer
- Add "see also" references - Make some adjustments as suggested by man-pages(7) - Clarify environment variable behaviour Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-08-21Update sqfsdiff documentationDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-08-20Change CLI of sqfsdiff to specify images through long optionsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-08-19Update rdsquashfs man pageDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-08-18Make data writer use block processorDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-08-11Add --one-file-system option to gensquashfsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-08-09Add option to sqfsdiff to extract regular files that are differentDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-08-07Add documentation for sqfsdiffDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-08-02Implement support for SOURCE_DATE_EPOCH environment variableDavid Oberhollenzer
reproducible-builds.org suggests the use of an environment variable as a source for time stamps: https://reproducible-builds.org/specs/source-date-epoch/ This commit adds support for setting the default mtime from the variable, if it is set and only defaulting to 0 if not. The timestamp given by the command line switch takes precedence. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-08-01Add flag to rdsquashfs to optionally set xattrs on unpacked filesDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-08-01Update man pagesDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-07-25Update rdsquashfs man pageDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-07-22Add a way to optionally keep the original time stampsDavid Oberhollenzer
First of all, this commit adds a mod_time field to a tree node. When creating the tree node, the field is set from the struct stat. When scanning a directory, the time stamps from the input are used if set. Second, the libsqfs code that reads inodes is modified to store the mod_time from the inode in the fstree node and to write the tree node into a generated inode. Finally, tar2sqfs is modified to optionally keep the timestamps from the tar archive instead of setting defaults. gensquashfs is similarly modified to keep the input timestamps if specified. The result is as follows: - sqfs2tar will always carry the timestamps from the squashfs over to the tar ball. - tar2sqfs will set defaults, unless explicitly asked to preserve the mtime from the tar ball. - gensquashfs can optionally preserve the mtime from the input hierarchy it processes if only --pack-dir is specified. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-07-21Implement generating an inode table for NFS exportDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-07-17fstree: add support for spaces in filenamesDavid Oberhollenzer
This commit adds a mechanism to fstree_from_file to support filenames with spaces in them by quoting the entire string. Quote marks can still be used inside file names by escaping them with a backslash. Back slashes (if that is your thing) can also be escaped. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-07-04tar2sqfs: repack extended attributes into squashfs filesystemDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-07-04sqfs2tar: add option to extract subdirectoriesDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-07-03Add no-skip option to sqfs2tarDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-07-03tar writer: replace PAX headers with GNU extensionsDavid Oberhollenzer
Some experiments seem to indicate that the various GNU extensions are more widely supported than their POSIX equivalents[1]. Possibly because they are easier to implement and possibly because of the wide spread use of GNU tar. This commit replaces the PAX writer in the write_tar_header implementation with a GNU extension based writer. The writer is also cleaned up by removing all global state. The record counter is moved outside into the tar2sqfs program and passed in as function argument. [1] https://dev.gentoo.org/~mgorny/articles/portability-of-tar-features.html Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-07-03Add no-skip option to tar2sqfsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-06-30Update documentationDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-06-28Update documentationDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-06-23Add block size and device block size options to tar2sqfsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-06-23Add filesystem defaults option to tar2sqfsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-06-23Add compressor options to tar2sqfsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-06-23Move all handling of compressor names to libcompress.aDavid Oberhollenzer
This commit removes handling of compressor names from gensquashfs. Instead, functions are added to libcompress to obtain name from ID, ID from name and to print out defaults. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-06-23tar2sqfs: Add some output messages, --quiet flag and --forceDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-06-15Add man page for tar2sqfsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-06-15Add man page for sqfs2tarDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-06-13Add Makemodule.am for doc/ subdirectoryDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-05-31Update documentationDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-05-25Update documentationDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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