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Merge pull request #1061 from pascalbreuninger/feat/POD-645-git-clone…
…-strategy feat(cli): add different git cloning strategies
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,111 @@ | ||
package git | ||
|
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import ( | ||
"context" | ||
"fmt" | ||
"io" | ||
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"github.com/spf13/pflag" | ||
) | ||
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type CloneStrategy string | ||
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const ( | ||
FullCloneStrategy CloneStrategy = "" | ||
BloblessCloneStrategy CloneStrategy = "blobless" | ||
TreelessCloneStrategy CloneStrategy = "treeless" | ||
ShallowCloneStrategy CloneStrategy = "shallow" | ||
) | ||
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type Cloner interface { | ||
Clone(ctx context.Context, repository string, targetDir string, extraArgs []string, stdout, stderr io.Writer) error | ||
} | ||
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func NewCloner(strategy CloneStrategy) Cloner { | ||
switch strategy { | ||
case BloblessCloneStrategy: | ||
return &bloblessClone{} | ||
case TreelessCloneStrategy: | ||
return &treelessClone{} | ||
case ShallowCloneStrategy: | ||
return &shallowClone{} | ||
case FullCloneStrategy: | ||
return &fullClone{} | ||
default: | ||
return &fullClone{} | ||
} | ||
} | ||
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var _ pflag.Value = (*CloneStrategy)(nil) | ||
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func (s *CloneStrategy) Set(v string) error { | ||
switch v { | ||
case string(FullCloneStrategy), | ||
string(BloblessCloneStrategy), | ||
string(TreelessCloneStrategy), | ||
string(ShallowCloneStrategy): | ||
{ | ||
*s = CloneStrategy(v) | ||
return nil | ||
} | ||
default: | ||
return fmt.Errorf("CloneStrategy %s not supported", v) | ||
} | ||
} | ||
func (s *CloneStrategy) Type() string { | ||
return "cloneStrategy" | ||
} | ||
func (s *CloneStrategy) String() string { | ||
return string(*s) | ||
} | ||
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type fullClone struct{} | ||
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var _ Cloner = &fullClone{} | ||
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func (c *fullClone) Clone(ctx context.Context, repository string, targetDir string, extraArgs []string, stdout, stderr io.Writer) error { | ||
args := []string{"clone"} | ||
args = append(args, extraArgs...) | ||
args = append(args, repository, targetDir) | ||
return run(ctx, args, stdout, stderr) | ||
} | ||
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type bloblessClone struct{} | ||
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var _ Cloner = &bloblessClone{} | ||
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func (c *bloblessClone) Clone(ctx context.Context, repository string, targetDir string, extraArgs []string, stdout, stderr io.Writer) error { | ||
args := []string{"clone", "--filter=blob:none"} | ||
args = append(args, extraArgs...) | ||
args = append(args, repository, targetDir) | ||
return run(ctx, args, stdout, stderr) | ||
} | ||
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type treelessClone struct{} | ||
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var _ Cloner = treelessClone{} | ||
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func (c treelessClone) Clone(ctx context.Context, repository string, targetDir string, extraArgs []string, stdout, stderr io.Writer) error { | ||
args := []string{"clone", "--filter=tree:0"} | ||
args = append(args, extraArgs...) | ||
args = append(args, repository, targetDir) | ||
return run(ctx, args, stdout, stderr) | ||
} | ||
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type shallowClone struct{} | ||
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var _ Cloner = shallowClone{} | ||
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func (c shallowClone) Clone(ctx context.Context, repository string, targetDir string, extraArgs []string, stdout, stderr io.Writer) error { | ||
args := []string{"clone", "--depth=1"} | ||
args = append(args, extraArgs...) | ||
args = append(args, repository, targetDir) | ||
return run(ctx, args, stdout, stderr) | ||
} | ||
|
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func run(ctx context.Context, args []string, stdout, stderr io.Writer) error { | ||
gitCommand := CommandContext(ctx, args...) | ||
gitCommand.Stdout = stdout | ||
gitCommand.Stderr = stderr | ||
return gitCommand.Run() | ||
} |
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