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installer/steps.go: Preliminary commit to dedupe logic
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,118 @@ | ||
package installer | ||
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import ( | ||
"log/slog" | ||
"path/filepath" | ||
"strings" | ||
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"github.com/livingsilver94/backee/repo" | ||
"github.com/livingsilver94/backee/service" | ||
) | ||
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type StepWriter interface { | ||
Setup(script string) error | ||
InstallPackages(fullCmd []string) error | ||
SymlinkFile(dst service.FilePath, src string) error | ||
CopyFile(dst service.FilePath, src string) error | ||
Finalize(script string) error | ||
} | ||
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type Steps struct { | ||
srv *service.Service | ||
log *slog.Logger | ||
wri StepWriter | ||
} | ||
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func NewSteps(srv *service.Service, wri StepWriter) Steps { | ||
return Steps{ | ||
srv: srv, | ||
log: slog.Default().WithGroup(srv.Name), | ||
wri: wri, | ||
} | ||
} | ||
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func (s Steps) Setup() error { | ||
if s.srv.Setup == nil || *s.srv.Setup == "" { | ||
return nil | ||
} | ||
s.log.Info("Running setup script") | ||
return s.wri.Setup(*s.srv.Setup) | ||
} | ||
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func (s Steps) InstallPackages() error { | ||
if len(s.srv.Packages) == 0 { | ||
return nil | ||
} | ||
s.log.Info("Installing OS packages") | ||
return s.wri.InstallPackages(append(s.srv.PkgManager, s.srv.Packages...)) | ||
} | ||
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func (s Steps) LinkFiles(repo repo.Repo, vars repo.Variables) error { | ||
if len(s.srv.Links) == 0 { | ||
return nil | ||
} | ||
s.log.Info("Symlinking files") | ||
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lnDir, err := repo.LinkDir(s.srv.Name) | ||
if err != nil { | ||
return err | ||
} | ||
tmpl := NewTemplate(s.srv.Name, vars) | ||
dest := &strings.Builder{} | ||
for srcFile, dstFile := range s.srv.Links { | ||
err := tmpl.ReplaceString(dstFile.Path, dest) | ||
if err != nil { | ||
return err | ||
} | ||
err = s.wri.SymlinkFile( | ||
service.FilePath{Path: dest.String(), Mode: dstFile.Mode}, | ||
filepath.Join(lnDir, srcFile)) | ||
if err != nil { | ||
return err | ||
} | ||
dest.Reset() | ||
} | ||
return nil | ||
} | ||
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func (s Steps) CopyFiles(repo repo.Repo, vars repo.Variables) error { | ||
if len(s.srv.Copies) == 0 { | ||
return nil | ||
} | ||
s.log.Info("Copying files") | ||
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lnDir, err := repo.DataDir(s.srv.Name) | ||
if err != nil { | ||
return err | ||
} | ||
tmpl := NewTemplate(s.srv.Name, vars) | ||
dest := &strings.Builder{} | ||
for srcFile, dstFile := range s.srv.Copies { | ||
err := tmpl.ReplaceString(dstFile.Path, dest) | ||
if err != nil { | ||
return err | ||
} | ||
err = s.wri.CopyFile( | ||
service.FilePath{Path: dest.String(), Mode: dstFile.Mode}, | ||
filepath.Join(lnDir, srcFile)) | ||
if err != nil { | ||
return err | ||
} | ||
dest.Reset() | ||
} | ||
return nil | ||
} | ||
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func (s Steps) Finalize(vars repo.Variables) error { | ||
if s.srv.Finalize == nil || *s.srv.Finalize == "" { | ||
return nil | ||
} | ||
s.log.Info("Running finalizer script") | ||
tmpl := NewTemplate(s.srv.Name, vars) | ||
script := &strings.Builder{} | ||
err := tmpl.ReplaceString(*s.srv.Finalize, script) | ||
if err != nil { | ||
return err | ||
} | ||
return runScript(script.String()) | ||
} |