linux/poky.git/scripts/lib/wic/filemap.py, branch 2.7_M2

wic: use explicit errno import

2018-11-07T23:08:55+00:00

os.errno doesn't work in Python 3.7 and shouldn't have ever worked, so use import errno explicitly. (From OE-Core rev: 82f9157e84dcaf0ad4292053b09be68c2290d197) Signed-off-by: Ross Burton Signed-off-by: Richard Purdie

wic: if we can't get from ioctl, try from os.stat()

2018-01-14T09:11:57+00:00

Under some conditions, ioctl FIGETBSZ can't return real value. We can try to use fallback via os.stat() to get block size. Source of patch: https://github.com/intel/bmap-tools/commit/17365f4fe9089df7ee9800a2a0ced177ec4798a4 (From OE-Core rev: d8f7cf2d38934c248be91101236f7537d0d31ea7) Signed-off-by: Dogukan Ergun Signed-off-by: Ross Burton Signed-off-by: Richard Purdie

wic: code cleanup

2017-06-23T10:44:12+00:00

Split long lines. Removed unused imports. (From OE-Core rev: 49b704864c7db49e41a0b6bbdb8a2840e7fa232b) Signed-off-by: Ed Bartosh Signed-off-by: Ross Burton Signed-off-by: Richard Purdie

filemap: calculate dst size correctly

2017-06-14T09:18:29+00:00

Fixed calculation of the dst file size using skip, seek and length parameters. Current code does it incorrectly which causes sparse_copy API to create unnecessary big output files. (From OE-Core rev: e6d709a6382e4b913612f597e66ad07b0e351d5f) Signed-off-by: Ed Bartosh Signed-off-by: Richard Purdie

filemap: check if dest is written for every block

2017-06-14T09:18:29+00:00

If lenght parameter is provided to sparse_copy call it's mandatory to check if the output file is fully written after reading unmapped block from input file. If it's not done then sparse_copy can write more data than specified length. (From OE-Core rev: 289b1767182982dfb6912e64481150697ba93e4d) Signed-off-by: Ed Bartosh Signed-off-by: Richard Purdie

filemap: change signature of sparse_copy function

2017-06-14T09:18:29+00:00

Renamed parameter offset->skip to match names of dd parameters. Changed affected sparse_copy calls. Added explanation of the parameters to docstring. (From OE-Core rev: 08e2f4e59816c5757686255b267b08cbc46fbd95) Signed-off-by: Ed Bartosh Signed-off-by: Richard Purdie

filemap: add parameter 'length' to sparse_copy

2017-06-14T09:18:28+00:00

Added parameter 'length' to specify amount of data to write into destination file. This is useful when only part of source file should be written into destination file. (From OE-Core rev: cc44e2eb3b5027a3531e6349937a23d73313b3c6) Signed-off-by: Ed Bartosh Signed-off-by: Richard Purdie

filemap: fix skip logic

2017-06-14T09:18:28+00:00

Fixed bug in processing 'skip' parameter: don't read input file if end of bmap block is less than skip Simplified logic of positioning to the start of data inside a partially skipped bmap block. (From OE-Core rev: c19f78a0713c8ac9d28b78f86c6d7b96157788f0) Signed-off-by: Ed Bartosh Signed-off-by: Richard Purdie

oe-selftest: test wic sparse_copy API

2017-04-12T14:09:57+00:00

Added new parameter 'api' to sparse_copy function to specify underlying filemap API to use. By default sparse_copy will try both available APIs. Added test case for sparse_copy to wic test suite. (From OE-Core rev: 88701cef6ba399e82f96ed1b0eef9a44ed8c1687) Signed-off-by: Ed Bartosh Signed-off-by: Richard Purdie

Revert "filemap: remove FilemapSeek class"

2017-04-05T22:22:13+00:00

FIEMAP API is not supported by tmpfs file system, but SEEK_HOLE/SEEK_DATA is supported. Returned back FilemapSeek class that implements support of SEEK_HOLE/SEEK_DATA API to make sparse_copy API working on tmpfs again. This reverts commit 6b80c13f7a82a312a3b981de5a56c66466ba1fac. (From OE-Core rev: e75bd6a7dd5c1b4bad039c35cf4a2ffc2f77c60a) Signed-off-by: Ed Bartosh Signed-off-by: Ross Burton Signed-off-by: Richard Purdie