wehub-resource-sync
a06f331eb8
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19 lines
624 B
Go
19 lines
624 B
Go
//go:build !windows
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package platform
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import "golang.org/x/sys/unix"
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// DiskAvailBytes reports the bytes available to an unprivileged caller on the
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// filesystem holding path (statfs f_bavail × f_bsize — the root-reserved
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// blocks are deliberately excluded, since the daemon does not run as root).
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// Callers gate disk-hungry maintenance (the store VACUUM needs up to a full
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// temporary copy of the database) on this number.
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func DiskAvailBytes(path string) (uint64, error) {
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var st unix.Statfs_t
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if err := unix.Statfs(path, &st); err != nil {
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return 0, err
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}
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return uint64(st.Bavail) * uint64(st.Bsize), nil
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}
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