mirror of
https://github.com/ipfs/kubo.git
synced 2025-05-21 08:56:37 +08:00
492 lines
14 KiB
Go
492 lines
14 KiB
Go
package commands
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import (
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"errors"
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"fmt"
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"io"
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"os"
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"strings"
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bstore "github.com/ipfs/go-ipfs/blocks/blockstore"
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blockservice "github.com/ipfs/go-ipfs/blockservice"
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core "github.com/ipfs/go-ipfs/core"
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"github.com/ipfs/go-ipfs/core/coreunix"
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offline "github.com/ipfs/go-ipfs/exchange/offline"
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dag "github.com/ipfs/go-ipfs/merkledag"
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dagtest "github.com/ipfs/go-ipfs/merkledag/test"
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mfs "github.com/ipfs/go-ipfs/mfs"
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ft "github.com/ipfs/go-ipfs/unixfs"
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mh "gx/ipfs/QmZyZDi491cCNTLfAhwcaDii2Kg4pwKRkhqQzURGDvY6ua/go-multihash"
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"gx/ipfs/Qmc5paX4ECBARnAKkcAmUYHBGor228Tkfxeya3Nu2KRL46/go-ipfs-cmds"
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"gx/ipfs/QmceUdzxkimdYsgtX733uNgzf1DLHyBKN6ehGSp85ayppM/go-ipfs-cmdkit"
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"gx/ipfs/QmceUdzxkimdYsgtX733uNgzf1DLHyBKN6ehGSp85ayppM/go-ipfs-cmdkit/files"
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"gx/ipfs/QmeWjRodbcZFKe5tMN7poEx3izym6osrLSnTLf9UjJZBbs/pb"
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)
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// ErrDepthLimitExceeded indicates that the max depth has been exceded.
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var ErrDepthLimitExceeded = fmt.Errorf("depth limit exceeded")
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const (
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quietOptionName = "quiet"
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quieterOptionName = "quieter"
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silentOptionName = "silent"
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progressOptionName = "progress"
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trickleOptionName = "trickle"
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wrapOptionName = "wrap-with-directory"
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hiddenOptionName = "hidden"
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onlyHashOptionName = "only-hash"
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chunkerOptionName = "chunker"
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pinOptionName = "pin"
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rawLeavesOptionName = "raw-leaves"
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noCopyOptionName = "nocopy"
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fstoreCacheOptionName = "fscache"
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cidVersionOptionName = "cid-version"
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hashOptionName = "hash"
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)
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const adderOutChanSize = 8
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var AddCmd = &cmds.Command{
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Helptext: cmdkit.HelpText{
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Tagline: "Add a file or directory to ipfs.",
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ShortDescription: `
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Adds contents of <path> to ipfs. Use -r to add directories (recursively).
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`,
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LongDescription: `
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Adds contents of <path> to ipfs. Use -r to add directories.
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Note that directories are added recursively, to form the ipfs
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MerkleDAG.
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The wrap option, '-w', wraps the file (or files, if using the
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recursive option) in a directory. This directory contains only
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the files which have been added, and means that the file retains
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its filename. For example:
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> ipfs add example.jpg
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added QmbFMke1KXqnYyBBWxB74N4c5SBnJMVAiMNRcGu6x1AwQH example.jpg
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> ipfs add example.jpg -w
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added QmbFMke1KXqnYyBBWxB74N4c5SBnJMVAiMNRcGu6x1AwQH example.jpg
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added QmaG4FuMqEBnQNn3C8XJ5bpW8kLs7zq2ZXgHptJHbKDDVx
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You can now refer to the added file in a gateway, like so:
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/ipfs/QmaG4FuMqEBnQNn3C8XJ5bpW8kLs7zq2ZXgHptJHbKDDVx/example.jpg
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The chunker option, '-s', specifies the chunking strategy that dictates
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how to break files into blocks. Blocks with same content can
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be deduplicated. The default is a fixed block size of
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256 * 1024 bytes, 'size-262144'. Alternatively, you can use the
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rabin chunker for content defined chunking by specifying
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rabin-[min]-[avg]-[max] (where min/avg/max refer to the resulting
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chunk sizes). Using other chunking strategies will produce
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different hashes for the same file.
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> ipfs add --chunker=size-2048 ipfs-logo.svg
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added QmafrLBfzRLV4XSH1XcaMMeaXEUhDJjmtDfsYU95TrWG87 ipfs-logo.svg
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> ipfs add --chunker=rabin-512-1024-2048 ipfs-logo.svg
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added Qmf1hDN65tR55Ubh2RN1FPxr69xq3giVBz1KApsresY8Gn ipfs-logo.svg
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You can now check what blocks have been created by:
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> ipfs object links QmafrLBfzRLV4XSH1XcaMMeaXEUhDJjmtDfsYU95TrWG87
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QmY6yj1GsermExDXoosVE3aSPxdMNYr6aKuw3nA8LoWPRS 2059
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Qmf7ZQeSxq2fJVJbCmgTrLLVN9tDR9Wy5k75DxQKuz5Gyt 1195
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> ipfs object links Qmf1hDN65tR55Ubh2RN1FPxr69xq3giVBz1KApsresY8Gn
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QmY6yj1GsermExDXoosVE3aSPxdMNYr6aKuw3nA8LoWPRS 2059
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QmerURi9k4XzKCaaPbsK6BL5pMEjF7PGphjDvkkjDtsVf3 868
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QmQB28iwSriSUSMqG2nXDTLtdPHgWb4rebBrU7Q1j4vxPv 338
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`,
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},
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Arguments: []cmdkit.Argument{
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cmdkit.FileArg("path", true, true, "The path to a file to be added to ipfs.").EnableRecursive().EnableStdin(),
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},
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Options: []cmdkit.Option{
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cmds.OptionRecursivePath, // a builtin option that allows recursive paths (-r, --recursive)
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cmdkit.BoolOption(quietOptionName, "q", "Write minimal output."),
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cmdkit.BoolOption(quieterOptionName, "Q", "Write only final hash."),
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cmdkit.BoolOption(silentOptionName, "Write no output."),
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cmdkit.BoolOption(progressOptionName, "p", "Stream progress data."),
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cmdkit.BoolOption(trickleOptionName, "t", "Use trickle-dag format for dag generation."),
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cmdkit.BoolOption(onlyHashOptionName, "n", "Only chunk and hash - do not write to disk."),
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cmdkit.BoolOption(wrapOptionName, "w", "Wrap files with a directory object."),
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cmdkit.BoolOption(hiddenOptionName, "H", "Include files that are hidden. Only takes effect on recursive add."),
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cmdkit.StringOption(chunkerOptionName, "s", "Chunking algorithm, size-[bytes] or rabin-[min]-[avg]-[max]").WithDefault("size-262144"),
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cmdkit.BoolOption(pinOptionName, "Pin this object when adding.").WithDefault(true),
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cmdkit.BoolOption(rawLeavesOptionName, "Use raw blocks for leaf nodes. (experimental)"),
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cmdkit.BoolOption(noCopyOptionName, "Add the file using filestore. Implies raw-leaves. (experimental)"),
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cmdkit.BoolOption(fstoreCacheOptionName, "Check the filestore for pre-existing blocks. (experimental)"),
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cmdkit.IntOption(cidVersionOptionName, "CID version. Defaults to 0 unless an option that depends on CIDv1 is passed. (experimental)"),
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cmdkit.StringOption(hashOptionName, "Hash function to use. Implies CIDv1 if not sha2-256. (experimental)").WithDefault("sha2-256"),
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},
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PreRun: func(req *cmds.Request, env cmds.Environment) error {
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quiet, _ := req.Options[quietOptionName].(bool)
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quieter, _ := req.Options[quieterOptionName].(bool)
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quiet = quiet || quieter
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silent, _ := req.Options[silentOptionName].(bool)
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if quiet || silent {
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return nil
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}
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// ipfs cli progress bar defaults to true unless quiet or silent is used
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_, found := req.Options[progressOptionName].(bool)
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if !found {
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req.Options[progressOptionName] = true
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}
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return nil
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},
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Run: func(req *cmds.Request, res cmds.ResponseEmitter, env cmds.Environment) {
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n, err := GetNode(env)
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if err != nil {
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res.SetError(err, cmdkit.ErrNormal)
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return
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}
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cfg, err := n.Repo.Config()
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if err != nil {
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res.SetError(err, cmdkit.ErrNormal)
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return
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}
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// check if repo will exceed storage limit if added
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// TODO: this doesn't handle the case if the hashed file is already in blocks (deduplicated)
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// TODO: conditional GC is disabled due to it is somehow not possible to pass the size to the daemon
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//if err := corerepo.ConditionalGC(req.Context(), n, uint64(size)); err != nil {
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// res.SetError(err, cmdkit.ErrNormal)
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// return
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//}
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progress, _ := req.Options[progressOptionName].(bool)
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trickle, _ := req.Options[trickleOptionName].(bool)
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wrap, _ := req.Options[wrapOptionName].(bool)
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hash, _ := req.Options[onlyHashOptionName].(bool)
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hidden, _ := req.Options[hiddenOptionName].(bool)
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silent, _ := req.Options[silentOptionName].(bool)
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chunker, _ := req.Options[chunkerOptionName].(string)
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dopin, _ := req.Options[pinOptionName].(bool)
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rawblks, rbset := req.Options[rawLeavesOptionName].(bool)
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nocopy, _ := req.Options[noCopyOptionName].(bool)
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fscache, _ := req.Options[fstoreCacheOptionName].(bool)
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cidVer, cidVerSet := req.Options[cidVersionOptionName].(int)
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hashFunStr, _ := req.Options[hashOptionName].(string)
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// The arguments are subject to the following constraints.
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//
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// nocopy -> filestoreEnabled
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// nocopy -> rawblocks
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// (hash != sha2-256) -> cidv1
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// NOTE: 'rawblocks -> cidv1' is missing. Legacy reasons.
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// nocopy -> filestoreEnabled
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if nocopy && !cfg.Experimental.FilestoreEnabled {
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res.SetError(errors.New("filestore is not enabled, see https://git.io/vy4XN"),
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cmdkit.ErrClient)
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return
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}
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// nocopy -> rawblocks
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if nocopy && !rawblks {
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// fixed?
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if rbset {
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res.SetError(
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fmt.Errorf("nocopy option requires '--raw-leaves' to be enabled as well"),
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cmdkit.ErrNormal,
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)
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return
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}
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// No, satisfy mandatory constraint.
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rawblks = true
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}
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// (hash != "sha2-256") -> CIDv1
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if hashFunStr != "sha2-256" && cidVer == 0 {
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if cidVerSet {
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res.SetError(
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errors.New("CIDv0 only supports sha2-256"),
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cmdkit.ErrClient,
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)
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return
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}
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cidVer = 1
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}
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// cidV1 -> raw blocks (by default)
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if cidVer > 0 && !rbset {
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rawblks = true
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}
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prefix, err := dag.PrefixForCidVersion(cidVer)
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if err != nil {
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res.SetError(err, cmdkit.ErrNormal)
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return
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}
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hashFunCode, ok := mh.Names[strings.ToLower(hashFunStr)]
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if !ok {
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res.SetError(fmt.Errorf("unrecognized hash function: %s", strings.ToLower(hashFunStr)), cmdkit.ErrNormal)
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return
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}
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prefix.MhType = hashFunCode
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prefix.MhLength = -1
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if hash {
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nilnode, err := core.NewNode(n.Context(), &core.BuildCfg{
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//TODO: need this to be true or all files
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// hashed will be stored in memory!
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NilRepo: true,
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})
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if err != nil {
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res.SetError(err, cmdkit.ErrNormal)
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return
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}
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n = nilnode
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}
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addblockstore := n.Blockstore
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if !(fscache || nocopy) {
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addblockstore = bstore.NewGCBlockstore(n.BaseBlocks, n.GCLocker)
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}
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exch := n.Exchange
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local, _ := req.Options["local"].(bool)
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if local {
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exch = offline.Exchange(addblockstore)
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}
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bserv := blockservice.New(addblockstore, exch)
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dserv := dag.NewDAGService(bserv)
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outChan := make(chan interface{}, adderOutChanSize)
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fileAdder, err := coreunix.NewAdder(req.Context, n.Pinning, n.Blockstore, dserv)
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if err != nil {
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res.SetError(err, cmdkit.ErrNormal)
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return
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}
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fileAdder.Out = outChan
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fileAdder.Chunker = chunker
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fileAdder.Progress = progress
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fileAdder.Hidden = hidden
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fileAdder.Trickle = trickle
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fileAdder.Wrap = wrap
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fileAdder.Pin = dopin
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fileAdder.Silent = silent
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fileAdder.RawLeaves = rawblks
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fileAdder.NoCopy = nocopy
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fileAdder.Prefix = &prefix
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if hash {
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md := dagtest.Mock()
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mr, err := mfs.NewRoot(req.Context, md, ft.EmptyDirNode(), nil)
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if err != nil {
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res.SetError(err, cmdkit.ErrNormal)
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return
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}
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fileAdder.SetMfsRoot(mr)
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}
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addAllAndPin := func(f files.File) error {
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// Iterate over each top-level file and add individually. Otherwise the
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// single files.File f is treated as a directory, affecting hidden file
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// semantics.
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for {
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file, err := f.NextFile()
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if err == io.EOF {
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// Finished the list of files.
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break
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} else if err != nil {
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return err
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}
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if err := fileAdder.AddFile(file); err != nil {
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return err
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}
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}
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// copy intermediary nodes from editor to our actual dagservice
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_, err := fileAdder.Finalize()
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if err != nil {
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return err
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}
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if hash {
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return nil
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}
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return fileAdder.PinRoot()
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}
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errCh := make(chan error)
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go func() {
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var err error
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defer func() { errCh <- err }()
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defer close(outChan)
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err = addAllAndPin(req.Files)
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}()
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defer res.Close()
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err = res.Emit(outChan)
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if err != nil {
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log.Error(err)
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return
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}
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err = <-errCh
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if err != nil {
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res.SetError(err, cmdkit.ErrNormal)
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}
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},
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PostRun: cmds.PostRunMap{
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cmds.CLI: func(req *cmds.Request, re cmds.ResponseEmitter) cmds.ResponseEmitter {
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reNext, res := cmds.NewChanResponsePair(req)
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outChan := make(chan interface{})
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sizeChan := make(chan int64, 1)
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sizeFile, ok := req.Files.(files.SizeFile)
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if ok {
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// Could be slow.
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go func() {
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size, err := sizeFile.Size()
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if err != nil {
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log.Warningf("error getting files size: %s", err)
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// see comment above
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return
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}
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sizeChan <- size
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}()
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} else {
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// we don't need to error, the progress bar just
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// won't know how big the files are
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log.Warning("cannot determine size of input file")
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}
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progressBar := func(wait chan struct{}) {
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defer close(wait)
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quiet, _ := req.Options[quietOptionName].(bool)
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quieter, _ := req.Options[quieterOptionName].(bool)
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quiet = quiet || quieter
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progress, _ := req.Options[progressOptionName].(bool)
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var bar *pb.ProgressBar
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if progress {
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bar = pb.New64(0).SetUnits(pb.U_BYTES)
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bar.ManualUpdate = true
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bar.ShowTimeLeft = false
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bar.ShowPercent = false
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bar.Output = os.Stderr
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bar.Start()
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}
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lastFile := ""
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lastHash := ""
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var totalProgress, prevFiles, lastBytes int64
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LOOP:
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for {
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select {
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case out, ok := <-outChan:
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if !ok {
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if quieter {
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fmt.Fprintln(os.Stdout, lastHash)
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}
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break LOOP
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}
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output := out.(*coreunix.AddedObject)
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if len(output.Hash) > 0 {
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lastHash = output.Hash
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if quieter {
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continue
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}
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if progress {
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// clear progress bar line before we print "added x" output
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fmt.Fprintf(os.Stderr, "\033[2K\r")
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}
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if quiet {
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fmt.Fprintf(os.Stdout, "%s\n", output.Hash)
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} else {
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fmt.Fprintf(os.Stdout, "added %s %s\n", output.Hash, output.Name)
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}
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} else {
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if !progress {
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continue
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}
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if len(lastFile) == 0 {
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lastFile = output.Name
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}
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if output.Name != lastFile || output.Bytes < lastBytes {
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prevFiles += lastBytes
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lastFile = output.Name
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}
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lastBytes = output.Bytes
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delta := prevFiles + lastBytes - totalProgress
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totalProgress = bar.Add64(delta)
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}
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if progress {
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bar.Update()
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}
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case size := <-sizeChan:
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if progress {
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bar.Total = size
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bar.ShowPercent = true
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bar.ShowBar = true
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bar.ShowTimeLeft = true
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}
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case <-req.Context.Done():
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// don't set or print error here, that happens in the goroutine below
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return
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}
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}
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}
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go func() {
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// defer order important! First close outChan, then wait for output to finish, then close re
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defer re.Close()
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if e := res.Error(); e != nil {
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defer close(outChan)
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re.SetError(e.Message, e.Code)
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return
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}
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wait := make(chan struct{})
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go progressBar(wait)
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defer func() { <-wait }()
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defer close(outChan)
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for {
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v, err := res.Next()
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if !cmds.HandleError(err, res, re) {
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break
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}
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select {
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case outChan <- v:
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case <-req.Context.Done():
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re.SetError(req.Context.Err(), cmdkit.ErrNormal)
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return
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}
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}
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}()
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return reNext
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},
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},
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Type: coreunix.AddedObject{},
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}
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