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149 lines
4.0 KiB
Go
149 lines
4.0 KiB
Go
package cmd
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import (
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"fmt"
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"io"
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"os"
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"github.com/zk-org/zk/internal/cli"
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"github.com/zk-org/zk/internal/core"
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"github.com/zk-org/zk/internal/util/errors"
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"github.com/zk-org/zk/internal/util/strings"
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)
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// Tag manages the note tags in the notebook.
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type Tag struct {
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List TagList `cmd group:"cmd" default:"withargs" help:"List all the note tags."`
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}
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// TagList lists all the note tags.
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type TagList struct {
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Format string `group:format short:f placeholder:TEMPLATE help:"Pretty print the list using a custom template or one of the predefined formats: name, full, json, jsonl."`
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Header string `group:format help:"Arbitrary text printed at the start of the list."`
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Footer string `group:format default:\n help:"Arbitrary text printed at the end of the list."`
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Delimiter string "group:format short:d default:\n help:\"Print tags delimited by the given separator.\""
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Delimiter0 bool "group:format short:0 name:delimiter0 help:\"Print tags delimited by ASCII NUL characters. This is useful when used in conjunction with `xargs -0`.\""
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NoPager bool `group:format short:P help:"Do not pipe output into a pager."`
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Quiet bool `group:format short:q help:"Do not print the total number of tags found."`
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Sort []string `group:sort short:s placeholder:TERM help:"Order the tags by the given criterion."`
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}
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func (cmd *TagList) Run(container *cli.Container) error {
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cmd.Header = strings.ExpandWhitespaceLiterals(cmd.Header)
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cmd.Footer = strings.ExpandWhitespaceLiterals(cmd.Footer)
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cmd.Delimiter = strings.ExpandWhitespaceLiterals(cmd.Delimiter)
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if cmd.Delimiter0 {
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if cmd.Delimiter != "\n" {
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return errors.New("--delimiter and --delimiter0 can't be used together")
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}
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if cmd.Header != "" {
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return errors.New("--footer and --delimiter0 can't be used together")
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}
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if cmd.Footer != "\n" {
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return errors.New("--footer and --delimiter0 can't be used together")
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}
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cmd.Delimiter = "\x00"
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cmd.Footer = "\x00"
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}
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if cmd.Format == "json" || cmd.Format == "jsonl" {
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if cmd.Header != "" {
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return errors.New("--header can't be used with JSON format")
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}
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if cmd.Footer != "\n" {
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return errors.New("--footer can't be used with JSON format")
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}
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if cmd.Delimiter != "\n" {
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return errors.New("--delimiter can't be used with JSON format")
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}
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switch cmd.Format {
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case "json":
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cmd.Delimiter = ","
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cmd.Header = "["
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cmd.Footer = "]\n"
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case "jsonl":
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// > The last character in the file may be a line separator, and it
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// > will be treated the same as if there was no line separator
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// > present.
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// > https://jsonlines.org/
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cmd.Footer = "\n"
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}
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}
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notebook, err := container.CurrentNotebook()
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if err != nil {
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return err
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}
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format, err := notebook.NewCollectionFormatter(cmd.tagTemplate())
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if err != nil {
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return err
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}
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sorters, err := core.CollectionSortersFromStrings(cmd.Sort)
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if err != nil {
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return err
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}
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tags, err := notebook.FindCollections(core.CollectionKindTag, sorters)
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if err != nil {
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return err
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}
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count := len(tags)
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if count > 0 {
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err = container.Paginate(cmd.NoPager, func(out io.Writer) error {
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if cmd.Header != "" {
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fmt.Fprint(out, cmd.Header)
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}
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for i, tag := range tags {
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if i > 0 {
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fmt.Fprint(out, cmd.Delimiter)
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}
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ft, err := format(tag)
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if err != nil {
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return err
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}
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fmt.Fprint(out, ft)
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}
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if cmd.Footer != "" {
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fmt.Fprint(out, cmd.Footer)
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}
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return nil
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})
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}
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if err == nil && !cmd.Quiet {
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fmt.Fprintf(os.Stderr, "\nFound %d %s\n", count, strings.Pluralize("tag", count))
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}
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return err
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}
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func (cmd *TagList) tagTemplate() string {
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format := cmd.Format
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if format == "" {
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format = "full"
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}
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templ, ok := defaultTagFormats[format]
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if !ok {
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templ = strings.ExpandWhitespaceLiterals(format)
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}
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return templ
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}
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var defaultTagFormats = map[string]string{
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"json": `{{json .}}`,
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"jsonl": `{{json .}}`,
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"name": `{{name}}`,
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"full": `{{name}} ({{note-count}})`,
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}
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