From 7d22cc88ef382033c59d09570d1525189e104eae Mon Sep 17 00:00:00 2001 From: Jhon Honce Date: Thu, 2 Dec 2021 11:05:03 -0700 Subject: Refactor podman system to report.Formatter [NO NEW TESTS NEEDED] Support better compatibility output for podman system commands * Format and content of output from podman version changed to be more compatible See #10974 Depends on containers/common#831 Signed-off-by: Jhon Honce --- cmd/podman/system/connection/list.go | 45 ++++++++++----------- cmd/podman/system/df.go | 75 ++++++++++++++++++++--------------- cmd/podman/system/events.go | 8 ++-- cmd/podman/system/info.go | 6 ++- cmd/podman/system/version.go | 77 +++++++++++++++++++----------------- test/system/001-basic.bats | 8 ++-- 6 files changed, 116 insertions(+), 103 deletions(-) diff --git a/cmd/podman/system/connection/list.go b/cmd/podman/system/connection/list.go index 2710142a8..fbae1e4eb 100644 --- a/cmd/podman/system/connection/list.go +++ b/cmd/podman/system/connection/list.go @@ -53,13 +53,6 @@ func list(cmd *cobra.Command, _ []string) error { return err } - hdrs := []map[string]string{{ - "Identity": "Identity", - "Name": "Name", - "URI": "URI", - "Default": "Default", - }} - rows := make([]namedDestination, 0) for k, v := range cfg.Engine.ServiceDestinations { def := false @@ -82,35 +75,37 @@ func list(cmd *cobra.Command, _ []string) error { return rows[i].Name < rows[j].Name }) - var format string - switch { - case report.IsJSON(cmd.Flag("format").Value.String()): + rpt := report.New(os.Stdout, cmd.Name()) + defer rpt.Flush() + + if report.IsJSON(cmd.Flag("format").Value.String()) { buf, err := registry.JSONLibrary().MarshalIndent(rows, "", " ") if err == nil { fmt.Println(string(buf)) } return err - case cmd.Flags().Changed("format"): - format = report.NormalizeFormat(cmd.Flag("format").Value.String()) - default: - format = "{{.Name}}\t{{.URI}}\t{{.Identity}}\t{{.Default}}\n" } - format = report.EnforceRange(format) - tmpl, err := report.NewTemplate("list").Parse(format) - if err != nil { - return err + if cmd.Flag("format").Changed { + rpt, err = rpt.Parse(report.OriginUser, cmd.Flag("format").Value.String()) + } else { + rpt, err = rpt.Parse(report.OriginPodman, + "{{range .}}{{.Name}}\t{{.URI}}\t{{.Identity}}\t{{.Default}}\n{{end -}}") } - - w, err := report.NewWriterDefault(os.Stdout) if err != nil { return err } - defer w.Flush() - isTable := report.HasTable(cmd.Flag("format").Value.String()) - if !cmd.Flag("format").Changed || isTable { - _ = tmpl.Execute(w, hdrs) + if rpt.RenderHeaders { + err = rpt.Execute([]map[string]string{{ + "Default": "Default", + "Identity": "Identity", + "Name": "Name", + "URI": "URI", + }}) + if err != nil { + return err + } } - return tmpl.Execute(w, rows) + return rpt.Execute(rows) } diff --git a/cmd/podman/system/df.go b/cmd/podman/system/df.go index dfde3bc07..b65a1ca55 100644 --- a/cmd/podman/system/df.go +++ b/cmd/podman/system/df.go @@ -54,23 +54,19 @@ func df(cmd *cobra.Command, args []string) error { return err } - w, err := report.NewWriterDefault(os.Stdout) - if err != nil { - return err - } - if dfOptions.Verbose { - return printVerbose(w, cmd, reports) + return printVerbose(cmd, reports) } - return printSummary(w, cmd, reports) + return printSummary(cmd, reports) } -func printSummary(w *report.Writer, cmd *cobra.Command, reports *entities.SystemDfReport) error { +func printSummary(cmd *cobra.Command, reports *entities.SystemDfReport) error { var ( dfSummaries []*dfSummary active int size, reclaimable int64 ) + for _, i := range reports.Images { if i.Containers > 0 { active++ @@ -136,17 +132,28 @@ func printSummary(w *report.Writer, cmd *cobra.Command, reports *entities.System "Size": "SIZE", "Reclaimable": "RECLAIMABLE", }) - row := "{{.Type}}\t{{.Total}}\t{{.Active}}\t{{.Size}}\t{{.Reclaimable}}\n" + + rpt := report.New(os.Stdout, cmd.Name()) + defer rpt.Flush() + + var err error if cmd.Flags().Changed("format") { - row = report.NormalizeFormat(dfOptions.Format) + rpt, err = rpt.Parse(report.OriginUser, dfOptions.Format) + } else { + row := "{{range . }}{{.Type}}\t{{.Total}}\t{{.Active}}\t{{.Size}}\t{{.Reclaimable}}\n{{end -}}" + rpt, err = rpt.Parse(report.OriginPodman, row) + } + if err != nil { + return err } - return writeTemplate(w, cmd, hdrs, row, dfSummaries) + return writeTemplate(rpt, hdrs, dfSummaries) } -func printVerbose(w *report.Writer, cmd *cobra.Command, reports *entities.SystemDfReport) error { - defer w.Flush() +func printVerbose(cmd *cobra.Command, reports *entities.SystemDfReport) error { // nolint:interfacer + rpt := report.New(os.Stdout, cmd.Name()) + defer rpt.Flush() - fmt.Fprint(w, "Images space usage:\n\n") + fmt.Fprint(rpt.Writer(), "Images space usage:\n\n") // convert to dfImage for output dfImages := make([]*dfImage, 0, len(reports.Images)) for _, d := range reports.Images { @@ -157,12 +164,16 @@ func printVerbose(w *report.Writer, cmd *cobra.Command, reports *entities.System "SharedSize": "SHARED SIZE", "UniqueSize": "UNIQUE SIZE", }) - imageRow := "{{.Repository}}\t{{.Tag}}\t{{.ImageID}}\t{{.Created}}\t{{.Size}}\t{{.SharedSize}}\t{{.UniqueSize}}\t{{.Containers}}\n" - if err := writeTemplate(w, cmd, hdrs, imageRow, dfImages); err != nil { + imageRow := "{{range .}}{{.Repository}}\t{{.Tag}}\t{{.ImageID}}\t{{.Created}}\t{{.Size}}\t{{.SharedSize}}\t{{.UniqueSize}}\t{{.Containers}}\n{{end -}}" + rpt, err := rpt.Parse(report.OriginPodman, imageRow) + if err != nil { + return err + } + if err := writeTemplate(rpt, hdrs, dfImages); err != nil { return nil } - fmt.Fprint(w, "\nContainers space usage:\n\n") + fmt.Fprint(rpt.Writer(), "\nContainers space usage:\n\n") // convert to dfContainers for output dfContainers := make([]*dfContainer, 0, len(reports.Containers)) for _, d := range reports.Containers { @@ -173,12 +184,16 @@ func printVerbose(w *report.Writer, cmd *cobra.Command, reports *entities.System "LocalVolumes": "LOCAL VOLUMES", "RWSize": "SIZE", }) - containerRow := "{{.ContainerID}}\t{{.Image}}\t{{.Command}}\t{{.LocalVolumes}}\t{{.RWSize}}\t{{.Created}}\t{{.Status}}\t{{.Names}}\n" - if err := writeTemplate(w, cmd, hdrs, containerRow, dfContainers); err != nil { + containerRow := "{{range .}}{{.ContainerID}}\t{{.Image}}\t{{.Command}}\t{{.LocalVolumes}}\t{{.RWSize}}\t{{.Created}}\t{{.Status}}\t{{.Names}}\n{{end -}}" + rpt, err = rpt.Parse(report.OriginPodman, containerRow) + if err != nil { + return err + } + if err := writeTemplate(rpt, hdrs, dfContainers); err != nil { return nil } - fmt.Fprint(w, "\nLocal Volumes space usage:\n\n") + fmt.Fprint(rpt.Writer(), "\nLocal Volumes space usage:\n\n") dfVolumes := make([]*dfVolume, 0, len(reports.Volumes)) // convert to dfVolume for output for _, d := range reports.Volumes { @@ -187,25 +202,21 @@ func printVerbose(w *report.Writer, cmd *cobra.Command, reports *entities.System hdrs = report.Headers(entities.SystemDfVolumeReport{}, map[string]string{ "VolumeName": "VOLUME NAME", }) - volumeRow := "{{.VolumeName}}\t{{.Links}}\t{{.Size}}\n" - return writeTemplate(w, cmd, hdrs, volumeRow, dfVolumes) -} - -func writeTemplate(w *report.Writer, cmd *cobra.Command, hdrs []map[string]string, format string, output interface{}) error { - defer w.Flush() - - format = report.EnforceRange(format) - tmpl, err := report.NewTemplate("df").Parse(format) + volumeRow := "{{range .}}{{.VolumeName}}\t{{.Links}}\t{{.Size}}\n{{end -}}" + rpt, err = rpt.Parse(report.OriginPodman, volumeRow) if err != nil { return err } + return writeTemplate(rpt, hdrs, dfVolumes) +} - if !cmd.Flags().Changed("format") { - if err := tmpl.Execute(w, hdrs); err != nil { +func writeTemplate(rpt *report.Formatter, hdrs []map[string]string, output interface{}) error { + if rpt.RenderHeaders { + if err := rpt.Execute(hdrs); err != nil { return err } } - return tmpl.Execute(w, output) + return rpt.Execute(output) } type dfImage struct { diff --git a/cmd/podman/system/events.go b/cmd/podman/system/events.go index e698e6652..881b9b8f4 100644 --- a/cmd/podman/system/events.go +++ b/cmd/podman/system/events.go @@ -77,7 +77,7 @@ func eventsCmd(cmd *cobra.Command, _ []string) error { errChannel := make(chan error) var ( - tmpl *report.Template + rpt *report.Formatter doJSON bool ) @@ -85,7 +85,7 @@ func eventsCmd(cmd *cobra.Command, _ []string) error { doJSON = report.IsJSON(eventFormat) if !doJSON { var err error - tmpl, err = report.NewTemplate("events").Parse(eventFormat) + rpt, err = report.New(os.Stdout, cmd.Name()).Parse(report.OriginUser, eventFormat) if err != nil { return err } @@ -108,10 +108,10 @@ func eventsCmd(cmd *cobra.Command, _ []string) error { } fmt.Println(jsonStr) case cmd.Flags().Changed("format"): - if err := tmpl.Execute(os.Stdout, event); err != nil { + if err := rpt.Execute(event); err != nil { return err } - fmt.Println("") + os.Stdout.WriteString("\n") default: fmt.Println(event.ToHumanReadable(!noTrunc)) } diff --git a/cmd/podman/system/info.go b/cmd/podman/system/info.go index c3f543e6a..c323ee276 100644 --- a/cmd/podman/system/info.go +++ b/cmd/podman/system/info.go @@ -3,6 +3,7 @@ package system import ( "fmt" "os" + "text/template" "github.com/containers/common/pkg/completion" "github.com/containers/common/pkg/report" @@ -84,7 +85,10 @@ func info(cmd *cobra.Command, args []string) error { } fmt.Println(string(b)) case cmd.Flags().Changed("format"): - tmpl, err := report.NewTemplate("info").Parse(inFormat) + // Cannot use report.New() as it enforces {{range .}} for OriginUser templates + tmpl := template.New(cmd.Name()).Funcs(template.FuncMap(report.DefaultFuncs)) + inFormat = report.NormalizeFormat(inFormat) + tmpl, err := tmpl.Parse(inFormat) if err != nil { return err } diff --git a/cmd/podman/system/version.go b/cmd/podman/system/version.go index 87b806503..521bb8774 100644 --- a/cmd/podman/system/version.go +++ b/cmd/podman/system/version.go @@ -2,16 +2,15 @@ package system import ( "fmt" - "io" "os" "strings" + "text/template" "github.com/containers/common/pkg/completion" "github.com/containers/common/pkg/report" "github.com/containers/podman/v3/cmd/podman/common" "github.com/containers/podman/v3/cmd/podman/registry" "github.com/containers/podman/v3/cmd/podman/validate" - "github.com/containers/podman/v3/libpod/define" "github.com/containers/podman/v3/pkg/domain/entities" "github.com/spf13/cobra" ) @@ -53,54 +52,60 @@ func version(cmd *cobra.Command, args []string) error { return nil } - w, err := report.NewWriterDefault(os.Stdout) - if err != nil { - return err - } - defer w.Flush() + if cmd.Flag("format").Changed { + // Cannot use report.New() as it enforces {{range .}} for OriginUser templates + tmpl := template.New(cmd.Name()).Funcs(template.FuncMap(report.DefaultFuncs)) - if cmd.Flags().Changed("format") { - row := report.NormalizeFormat(versionFormat) - tmpl, err := report.NewTemplate("version 2.0.0").Parse(row) + versionFormat = report.NormalizeFormat(versionFormat) + tmpl, err := tmpl.Parse(versionFormat) if err != nil { return err } - if err := tmpl.Execute(w, versions); err != nil { + if err := tmpl.Execute(os.Stdout, versions); err != nil { // On Failure, assume user is using older version of podman version --format and check client - row = strings.ReplaceAll(row, ".Server.", ".") - tmpl, err := report.NewTemplate("version 1.0.0").Parse(row) + versionFormat = strings.ReplaceAll(versionFormat, ".Server.", ".") + tmpl, err := tmpl.Parse(versionFormat) if err != nil { return err } - if err := tmpl.Execute(w, versions.Client); err != nil { + if err := tmpl.Execute(os.Stdout, versions.Client); err != nil { return err } } return nil } - if versions.Server != nil { - if _, err := fmt.Fprintf(w, "Client:\n"); err != nil { - return err - } - formatVersion(w, versions.Client) - if _, err := fmt.Fprintf(w, "\nServer:\n"); err != nil { - return err - } - formatVersion(w, versions.Server) - } else { - formatVersion(w, versions.Client) + rpt := report.New(os.Stdout, cmd.Name()) + defer rpt.Flush() + rpt, err = rpt.Parse(report.OriginPodman, versionTemplate) + if err != nil { + return err } - return nil + return rpt.Execute(versions) } -func formatVersion(w io.Writer, version *define.Version) { - fmt.Fprintf(w, "Version:\t%s\n", version.Version) - fmt.Fprintf(w, "API Version:\t%s\n", version.APIVersion) - fmt.Fprintf(w, "Go Version:\t%s\n", version.GoVersion) - if version.GitCommit != "" { - fmt.Fprintf(w, "Git Commit:\t%s\n", version.GitCommit) - } - fmt.Fprintf(w, "Built:\t%s\n", version.BuiltTime) - fmt.Fprintf(w, "OS/Arch:\t%s\n", version.OsArch) -} +const versionTemplate = `{{with .Client -}} +Client:\tPodman Engine +Version:\t{{.Version}} +API Version:\t{{.APIVersion}} +Go Version:\t{{.GoVersion}} +{{if .GitCommit -}} + Git Commit:\t{{.GitCommit}} +{{- end}} +Built:\t{{.BuiltTime}} +OS/Arch:\t{{.OsArch}} +{{- end}} + +{{- if .Server }}{{with .Server}} + +Server:\tPodman Engine +Version:\t{{.Version}} +API Version:\t{{.APIVersion}} +Go Version:\t{{.GoVersion}} +{{if .GitCommit -}} + Git Commit:\t{{.GitCommit}} +{{- end}} +Built:\t{{.BuiltTime}} +OS/Arch:\t{{.OsArch}} +{{- end}}{{- end}} +` diff --git a/test/system/001-basic.bats b/test/system/001-basic.bats index 03f07d602..23489c1b5 100644 --- a/test/system/001-basic.bats +++ b/test/system/001-basic.bats @@ -15,12 +15,10 @@ function setup() { @test "podman version emits reasonable output" { run_podman version - # First line of podman-remote is "Client:". + # First line of podman version is "Client: *Podman Engine". # Just delete it (i.e. remove the first entry from the 'lines' array) - if is_remote; then - if expr "${lines[0]}" : "Client:" >/dev/null; then - lines=("${lines[@]:1}") - fi + if expr "${lines[0]}" : "Client: *" >/dev/null; then + lines=("${lines[@]:1}") fi is "${lines[0]}" "Version:[ ]\+[1-9][0-9.]\+" "Version line 1" -- cgit v1.2.3-54-g00ecf