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search_cmd.go
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search_cmd.go
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package app
import (
"fmt"
"regexp"
"github.com/cashapp/hermit"
"github.com/cashapp/hermit/errors"
"github.com/cashapp/hermit/manifest"
"github.com/cashapp/hermit/state"
"github.com/cashapp/hermit/ui"
)
type searchCmd struct {
Short bool `short:"s" help:"Short listing."`
Pattern string `arg:"" help:"Either a search term or regex to match a package name." optional:""`
Exact bool `short:"e" long:"exact" help:"Exact name matches only. Not compatible with regex patterns."`
JSONFormattable
}
// searchResult resolved from a manifest.
type searchResult struct {
Name string
Versions []string
Channels []string
CurrentVersion string
Description string
Repository string
}
// buildSearchResult constructs a search result from packages with same name
// p is an array expected to be package with same name
func buildSearchResult(p []*manifest.Package) *searchResult {
out := &searchResult{
Versions: make([]string, 0),
Channels: make([]string, 0),
}
for _, pkg := range p {
if out.Repository == "" {
out.Repository = pkg.Repository
}
if out.Name == "" {
out.Name = pkg.Reference.Name
out.Description = pkg.Description
}
ver := pkg.Reference.StringNoName()
if pkg.Reference.IsChannel() {
out.Channels = append(out.Channels, ver)
} else {
out.Versions = append(out.Versions, ver)
}
if pkg.Linked {
out.CurrentVersion = ver
}
}
return out
}
func buildSearchJSONResults(byName map[string][]*manifest.Package, names []string) interface{} {
packages := make([]*searchResult, 0)
for _, name := range names {
pg := byName[name]
packages = append(packages, buildSearchResult(pg))
}
return packages
}
func (s *searchCmd) Run(l *ui.UI, env *hermit.Env, state *state.State) error {
var (
pkgs manifest.Packages
err error
)
pattern := s.Pattern
if s.Exact {
pattern = "^" + regexp.QuoteMeta(pattern) + "$"
} else {
pattern = "(?i)" + pattern
}
if env != nil {
err = env.Update(l, false)
if err != nil {
return errors.WithStack(err)
}
pkgs, err = env.Search(l, pattern)
if err != nil {
return errors.WithStack(err)
}
} else {
srcs, err := state.Sources(l)
if err != nil {
return errors.WithStack(err)
}
err = srcs.Sync(l, false)
if err != nil {
return errors.WithStack(err)
}
pkgs, err = state.Search(l, pattern)
if err != nil {
return errors.WithStack(err)
}
}
if s.Short {
for _, pkg := range pkgs {
fmt.Println(pkg)
}
return nil
}
err = listPackages(pkgs, &listPackageOption{
AllVersions: true,
TransformJSON: buildSearchJSONResults,
UI: l,
JSON: s.JSON,
Prefix: s.Pattern,
})
if err != nil {
return errors.Wrapf(err, "error listing packages")
}
return nil
}