Updated copyright notices to include the year 2018.

lib-fs: Add fs_file/iter_init_parent()

lib-fs: Split allocation from fs.iter_init() to a separate fs.iter_alloc()

lib-fs: Split allocation from fs.file_init() to a separate fs.file_alloc()

global: Fix spelling mistakes in comments Original work by @andreasschulze and @jsoref

fs-compress: Allow compress level 0 to skip compression This can be useful when combined with the "maybe-" prefix, so Dovecot will support reading compressed files without creating new ones.

fs-compress: Support reading uncompressed input by prefixing compression format with "maybe-"

global: start relying on [io]_stream_unref(NULL) being a no-op Cleanup performed with the following semantic patch: @@ expression E; @@ - if (E != NULL) { - i_stream_unref(&E); - } + i_stream_unref(&E); @@ expression E; @@ - if (E != NULL) { - o_stream_unref(&E); - } + o_stream_unref(&E);

global: start relying on [io]_stream_destroy(NULL) being a no-op Cleanup performed with the following semantic patch: @@ expression E; @@ - if (E != NULL) { - i_stream_destroy(&E); - } + i_stream_destroy(&E); @@ expression E; @@ - if (E != NULL) { - o_stream_destroy(&E); - } + o_stream_destroy(&E);

Updated copyright notices to include the year 2017.

lib-fs: Do not abort parent of parent

lib-fs: Add fs_write_stream_abort_parent and use it Will do all the things abort_error does, but leaves error untouched. You are expected to set one yourself.

fs-api: Add and use fs_write_stream_abort_error This lets caller to specify error instead of setting it with fs_error. Doing it like this lets us percolate the error upwards.

lib-fs: Added fs_get_nlinks() Although fs_stat() could return this, its caller can't indicate whether it actually wants the link count. Usually fs_stat() is used only to get the file's size. In some backends it's not cheap to get the link count, so adding this function allows the caller to explicitly ask for it.

fs-compress: Use fs_wrapper_*() wherever possible

lib-fs: Added fs_switch_ioloop()

lib-fs: fs_wait_async() can't fail, so make it return void. The individual requests can timeout, but not the waiting itself.

global: Use o_stream_nsend_istream() where useful We can skip all of the io error handling and just leave it to o_stream_nfinish().

global: freshen copyright git ls-files | xargs perl -p -i -e 's/(\d+)-201[0-5]/$1-2016/g;s/ (201[0-5]) Dovecot/ $1-2016 Dovecot/'

Moved fs-compress to a separate plugin directory. Mainly because I couldn't figure out how to make automake dependencies work on "make install" stage. It was trying to link fs-compress.so using -ldovecot-storage, but libdovecot-storage.so was also concurrently being installed.