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* add template output Signed-off-by: Jonas Xavier <jonasx@anchore.com> * remove dead code Signed-off-by: Jonas Xavier <jonasx@anchore.com> * fix template cli flag Signed-off-by: Jonas Xavier <jonasx@anchore.com> * implement template's own format type Signed-off-by: Jonas Xavier <jonasx@anchore.com> * simpler code Signed-off-by: Jonas Xavier <jonasx@anchore.com> * fix readme link to Go template Signed-off-by: Jonas Xavier <jonasx@anchore.com> * feedback changes Signed-off-by: Jonas Xavier <jonasx@anchore.com> * simpler func signature patter Signed-off-by: Jonas Xavier <jonasx@anchore.com> * nit Signed-off-by: Jonas Xavier <jonasx@anchore.com> * fix linter error Signed-off-by: Jonas Xavier <jonasx@anchore.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,49 @@ | ||
| package template | ||
|
|
||
| import ( | ||
| "errors" | ||
| "fmt" | ||
| "os" | ||
| "reflect" | ||
| "text/template" | ||
|
|
||
| "github.com/Masterminds/sprig/v3" | ||
| "github.com/mitchellh/go-homedir" | ||
| ) | ||
|
|
||
| func makeTemplateExecutor(templateFilePath string) (*template.Template, error) { | ||
| if templateFilePath == "" { | ||
| return nil, errors.New("no template file: please provide a template path") | ||
| } | ||
|
|
||
| expandedPathToTemplateFile, err := homedir.Expand(templateFilePath) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("unable to expand path %s", templateFilePath) | ||
| } | ||
|
|
||
| templateContents, err := os.ReadFile(expandedPathToTemplateFile) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("unable to get template content: %w", err) | ||
| } | ||
|
|
||
| templateName := expandedPathToTemplateFile | ||
| tmpl, err := template.New(templateName).Funcs(funcMap).Parse(string(templateContents)) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("unable to parse template: %w", err) | ||
| } | ||
|
|
||
| return tmpl, nil | ||
| } | ||
|
|
||
| // These are custom functions available to template authors. | ||
| var funcMap = func() template.FuncMap { | ||
| f := sprig.HermeticTxtFuncMap() | ||
| f["getLastIndex"] = func(collection interface{}) int { | ||
| if v := reflect.ValueOf(collection); v.Kind() == reflect.Slice { | ||
| return v.Len() - 1 | ||
| } | ||
|
|
||
| return 0 | ||
| } | ||
| return f | ||
| }() |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,29 @@ | ||
| package template | ||
|
|
||
| import ( | ||
| "flag" | ||
| "testing" | ||
|
|
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| "github.com/anchore/syft/internal/formats/common/testutils" | ||
| "github.com/stretchr/testify/assert" | ||
| ) | ||
|
|
||
| var updateTmpl = flag.Bool("update-tmpl", false, "update the *.golden files for json encoders") | ||
|
|
||
| func TestFormatWithOption(t *testing.T) { | ||
| f := OutputFormat{} | ||
| f.SetTemplatePath("test-fixtures/csv.template") | ||
|
|
||
| testutils.AssertEncoderAgainstGoldenSnapshot(t, | ||
| f, | ||
| testutils.DirectoryInput(t), | ||
| *updateTmpl, | ||
| ) | ||
|
|
||
| } | ||
|
|
||
| func TestFormatWithoutOptions(t *testing.T) { | ||
| f := Format() | ||
| err := f.Encode(nil, testutils.DirectoryInput(t)) | ||
| assert.ErrorContains(t, err, "no template file: please provide a template path") | ||
| } |
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