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pkg/chunked: add support for sparse files #1102

Merged
merged 5 commits into from
Jan 13, 2022
Merged

pkg/chunked: add support for sparse files #1102

merged 5 commits into from
Jan 13, 2022

Commits on Jan 13, 2022

  1. chunked: remove garbage symlink 

    Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
    @giuseppe
    giuseppe committed Jan 13, 2022
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  2. cache: store correctly the digestLen field 

    commit 10697a0 introduced the issue.

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
    @giuseppe
    giuseppe committed Jan 13, 2022
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  3. cache: parse the correct field for offset 

    commit 10697a0 introduced the issue.

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
    @giuseppe
    giuseppe committed Jan 13, 2022
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  4. chunked: add tests for the cache 

    Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
    @giuseppe
    giuseppe committed Jan 13, 2022
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  5. pkg/chunked: add support for sparse files 

    automatically detect holes in sparse files (the threshold is hardcoded
at 1kb for now) and add this information to the manifest file.

The receiver will create a hole (using unix.Seek and unix.Ftruncate)
instead of writing the actual zeros.

Closes: containers#1091

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
    @giuseppe
    giuseppe committed Jan 13, 2022
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