127 lines
3.1 KiB
Go
127 lines
3.1 KiB
Go
package hcl2template
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import (
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"fmt"
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"io/ioutil"
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"os"
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"path/filepath"
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"strings"
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"github.com/gobwas/glob"
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"github.com/hashicorp/hcl/v2"
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"github.com/hashicorp/packer/hcl2template/repl"
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hcl2shim "github.com/hashicorp/packer/hcl2template/shim"
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"github.com/zclconf/go-cty/cty"
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)
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func warningErrorsToDiags(block *hcl.Block, warnings []string, err error) hcl.Diagnostics {
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var diags hcl.Diagnostics
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for _, warning := range warnings {
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diags = append(diags, &hcl.Diagnostic{
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Summary: warning,
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Subject: &block.DefRange,
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Severity: hcl.DiagWarning,
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})
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}
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if err != nil {
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diags = append(diags, &hcl.Diagnostic{
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Summary: err.Error(),
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Subject: &block.DefRange,
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Severity: hcl.DiagError,
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})
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}
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return diags
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}
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func isDir(name string) (bool, error) {
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s, err := os.Stat(name)
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if err != nil {
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return false, err
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}
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return s.IsDir(), nil
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}
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// GetHCL2Files returns two slices of json formatted and hcl formatted files,
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// hclSuffix and jsonSuffix tell which file is what. Filename can be a folder
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// or a file.
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//
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// When filename is a folder all files of folder matching the suffixes will be
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// returned. Otherwise if filename references a file and filename matches one
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// of the suffixes it is returned in the according slice.
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func GetHCL2Files(filename, hclSuffix, jsonSuffix string) (hclFiles, jsonFiles []string, diags hcl.Diagnostics) {
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if filename == "" {
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return
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}
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isDir, err := isDir(filename)
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if err != nil {
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diags = append(diags, &hcl.Diagnostic{
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Severity: hcl.DiagError,
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Summary: "Cannot tell wether " + filename + " is a directory",
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Detail: err.Error(),
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})
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return nil, nil, diags
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}
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if !isDir {
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if strings.HasSuffix(filename, jsonSuffix) {
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return nil, []string{filename}, diags
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}
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if strings.HasSuffix(filename, hclSuffix) {
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return []string{filename}, nil, diags
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}
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return nil, nil, diags
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}
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fileInfos, err := ioutil.ReadDir(filename)
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if err != nil {
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diag := &hcl.Diagnostic{
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Severity: hcl.DiagError,
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Summary: "Cannot read hcl directory",
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Detail: err.Error(),
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}
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diags = append(diags, diag)
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return nil, nil, diags
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}
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for _, fileInfo := range fileInfos {
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if fileInfo.IsDir() {
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continue
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}
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filename := filepath.Join(filename, fileInfo.Name())
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if strings.HasSuffix(filename, hclSuffix) {
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hclFiles = append(hclFiles, filename)
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} else if strings.HasSuffix(filename, jsonSuffix) {
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jsonFiles = append(jsonFiles, filename)
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}
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}
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return hclFiles, jsonFiles, diags
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}
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// Convert -only and -except globs to glob.Glob instances.
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func convertFilterOption(patterns []string, optionName string) ([]glob.Glob, hcl.Diagnostics) {
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var globs []glob.Glob
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var diags hcl.Diagnostics
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for _, pattern := range patterns {
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g, err := glob.Compile(pattern)
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if err != nil {
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diags = append(diags, &hcl.Diagnostic{
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Summary: fmt.Sprintf("Invalid -%s pattern %s: %s", optionName, pattern, err),
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Severity: hcl.DiagError,
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})
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}
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globs = append(globs, g)
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}
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return globs, diags
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}
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func PrintableCtyValue(v cty.Value) string {
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if !v.IsWhollyKnown() {
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return "<unknown>"
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}
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gval := hcl2shim.ConfigValueFromHCL2(v)
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str := repl.FormatResult(gval)
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return str
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}
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