mirror of
https://github.com/strongdm/comply
synced 2024-11-05 15:35:25 +00:00
102 lines
2.7 KiB
Go
102 lines
2.7 KiB
Go
package render
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import (
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"context"
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"fmt"
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"os"
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"os/exec"
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"time"
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"github.com/docker/docker/api/types"
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"github.com/docker/docker/api/types/container"
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"github.com/docker/docker/client"
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"github.com/pkg/errors"
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"github.com/strongdm/comply/internal/config"
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)
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var pandocArgs = []string{"-f", "markdown+smart", "--toc", "-N", "--template", "templates/default.latex", "-o"}
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func pandoc(outputFilename string, errOutputCh chan error) {
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if config.WhichPandoc() == config.UsePandoc {
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err := pandocPandoc(outputFilename)
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if err != nil {
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errOutputCh <- err
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}
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} else {
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dockerPandoc(outputFilename, errOutputCh)
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}
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}
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func dockerPandoc(outputFilename string, errOutputCh chan error) {
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pandocCmd := append(pandocArgs, fmt.Sprintf("/source/output/%s", outputFilename), fmt.Sprintf("/source/output/%s.md", outputFilename))
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ctx := context.Background()
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cli, err := client.NewEnvClient()
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if err != nil {
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errOutputCh <- errors.Wrap(err, "unable to read Docker environment")
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return
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}
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pwd, err := os.Getwd()
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if err != nil {
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errOutputCh <- errors.Wrap(err, "unable to get workding directory")
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return
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}
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hc := &container.HostConfig{
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Binds: []string{pwd + ":/source"},
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}
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resp, err := cli.ContainerCreate(ctx, &container.Config{
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Image: "strongdm/pandoc",
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Cmd: pandocCmd},
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hc, nil, "")
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if err != nil {
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errOutputCh <- errors.Wrap(err, "unable to create Docker container")
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return
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}
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defer func() {
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timeout := 2 * time.Second
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cli.ContainerStop(ctx, resp.ID, &timeout)
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err := cli.ContainerRemove(ctx, resp.ID, types.ContainerRemoveOptions{Force: true})
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if err != nil {
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errOutputCh <- errors.Wrap(err, "unable to remove container")
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return
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}
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}()
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if err := cli.ContainerStart(ctx, resp.ID, types.ContainerStartOptions{}); err != nil {
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errOutputCh <- errors.Wrap(err, "unable to start Docker container")
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return
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}
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_, err = cli.ContainerWait(ctx, resp.ID)
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if err != nil {
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errOutputCh <- errors.Wrap(err, "error awaiting Docker container")
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return
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}
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_, err = cli.ContainerLogs(ctx, resp.ID, types.ContainerLogsOptions{ShowStdout: true})
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if err != nil {
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errOutputCh <- errors.Wrap(err, "error reading Docker container logs")
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return
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}
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if _, err = os.Stat(fmt.Sprintf("output/%s", outputFilename)); err != nil && os.IsNotExist(err) {
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errOutputCh <- errors.Wrap(err, "output not generated; verify your Docker image is up to date")
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return
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}
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}
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// 🐼
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func pandocPandoc(outputFilename string) error {
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cmd := exec.Command("pandoc", append(pandocArgs, fmt.Sprintf("output/%s", outputFilename), fmt.Sprintf("output/%s.md", outputFilename))...)
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outputRaw, err := cmd.CombinedOutput()
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if err != nil {
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fmt.Println(string(outputRaw))
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return errors.Wrap(err, "error calling pandoc")
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}
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return nil
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}
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