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merge.go
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merge.go
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package cmd
import (
"io"
"os"
"path/filepath"
"github.com/spf13/cobra"
"github.com/miniscruff/changie/core"
)
type Merge struct {
*cobra.Command
// cli args
DryRun bool
UnreleasedHeader string
// dependencies
TemplateCache *core.TemplateCache
}
func NewMerge(templateCache *core.TemplateCache) *Merge {
m := &Merge{
TemplateCache: templateCache,
}
cmd := &cobra.Command{
Use: "merge",
Short: "Merge all versions into one changelog",
Long: `Merge all version files into one changelog file and run any replacement commands.
Note that a newline is added between each version file.`,
Args: cobra.NoArgs,
RunE: m.Run,
}
cmd.Flags().BoolVarP(
&m.DryRun,
"dry-run", "d",
false,
"Print merged changelog instead of writing to disk, will not run replacements",
)
cmd.Flags().StringVarP(
&m.UnreleasedHeader,
"include-unreleased", "u",
"",
"Include unreleased changes with this value as the header",
)
m.Command = cmd
return m
}
func (m *Merge) Run(cmd *cobra.Command, args []string) error {
cfg, err := core.LoadConfig()
if err != nil {
return err
}
// If we have projects, merge all of them.
if len(cfg.Projects) > 0 {
for _, pc := range cfg.Projects {
err = m.mergeProject(cfg, pc.Key, pc.ChangelogPath, pc.Replacements)
if err != nil {
return err
}
}
return nil
}
return m.mergeProject(cfg, "", cfg.ChangelogPath, cfg.Replacements)
}
func (m *Merge) mergeProject(
cfg *core.Config,
project, changelogPath string,
replacements []core.Replacement,
) error {
var writer io.Writer
if m.DryRun {
writer = m.Command.OutOrStdout()
} else {
changeFile, changeErr := os.Create(changelogPath)
if changeErr != nil {
return changeErr
}
defer changeFile.Close()
writer = changeFile
}
allVersions, err := core.GetAllVersions(cfg, false, project)
if err != nil {
return err
}
if cfg.HeaderPath != "" {
err = core.AppendFile(writer, filepath.Join(cfg.ChangesDir, cfg.HeaderPath))
if err != nil {
return err
}
_ = core.WriteNewlines(writer, cfg.Newlines.AfterChangelogHeader)
}
if m.UnreleasedHeader != "" {
var unrelErr error
allChanges, unrelErr := core.GetChanges(
cfg,
nil,
project,
)
if unrelErr != nil {
return unrelErr
}
// Make sure we have any changes before writing the unreleased content.
if len(allChanges) > 0 {
_ = core.WriteNewlines(writer, cfg.Newlines.BeforeChangelogVersion)
_ = core.WriteNewlines(writer, cfg.Newlines.BeforeVersion)
_, _ = writer.Write([]byte(m.UnreleasedHeader))
_ = core.WriteNewlines(writer, cfg.Newlines.AfterVersion)
// create a fake batch to write the changes
b := &Batch{
config: cfg,
writer: writer,
TemplateCache: m.TemplateCache,
}
unrelErr = b.WriteChanges(allChanges)
if unrelErr != nil {
return unrelErr
}
_ = core.WriteNewlines(b.writer, b.config.Newlines.EndOfVersion)
_ = core.WriteNewlines(writer, cfg.Newlines.AfterChangelogVersion)
}
}
for _, version := range allVersions {
_ = core.WriteNewlines(writer, cfg.Newlines.BeforeChangelogVersion)
versionPath := filepath.Join(cfg.ChangesDir, project, version.Original()+"."+cfg.VersionExt)
err = core.AppendFile(writer, versionPath)
if err != nil {
return err
}
_ = core.WriteNewlines(writer, cfg.Newlines.AfterChangelogVersion)
}
if len(allVersions) == 0 {
return nil
}
if m.DryRun {
return nil
}
version := allVersions[0]
replaceData := core.ReplaceData{
Version: version.Original(),
VersionNoPrefix: version.String(),
Major: int(version.Major()),
Minor: int(version.Minor()),
Patch: int(version.Patch()),
Prerelease: version.Prerelease(),
Metadata: version.Metadata(),
}
for _, rep := range replacements {
err = rep.Execute(replaceData)
if err != nil {
return err
}
}
return nil
}