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feat(context): Support loading import variables from absolute paths

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This lets users specify the paths from which to import additional
variables using absolute paths in addition to relative paths.

This enables both loading of configuration files placed outside of the
resource set folder (if desired), as well as special use-cases such as
specifying `/dev/stdin` as an input path to read variables from
standard input.

This change supersedes #131
This commit is contained in:
Vincent Ambo 2018-06-09 20:14:38 +02:00 committed by Vincent Ambo
parent 141355f350
commit ae6d960df9
2 changed files with 20 additions and 11 deletions
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15
context/context.go
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@ -65,7 +65,7 @@ func contextLoadingError(filename string, cause error) error {
// Attempt to load and deserialise a Context from the specified file.
func LoadContext(filename string, explicitVars *[]string) (*Context, error) {
var ctx Context
err := util.LoadJsonOrYaml(filename, &ctx)
err := util.LoadData(filename, &ctx)
if err != nil {
return nil, contextLoadingError(filename, err)
@ -105,8 +105,17 @@ func (ctx *Context) loadImportedVariables() (map[string]interface{}, error) {
allImportedVars := make(map[string]interface{})
for _, file := range ctx.VariableImportFiles {
// Ensure that the filename is not merged with the baseDir if
// it is set to an absolute path.
var filePath string
if path.IsAbs(file) {
filePath = file
} else {
filePath = path.Join(ctx.BaseDir, file)
}
var importedVars map[string]interface{}
err := util.LoadJsonOrYaml(path.Join(ctx.BaseDir, file), &importedVars)
err := util.LoadData(filePath, &importedVars)
if err != nil {
return nil, err
@ -176,7 +185,7 @@ func loadDefaultValues(rs *ResourceSet, c *Context) *map[string]interface{} {
var defaultVars map[string]interface{}
for _, filename := range util.DefaultFilenames {
err := util.LoadJsonOrYaml(path.Join(c.BaseDir, rs.Path, filename), &defaultVars)
err := util.LoadData(path.Join(c.BaseDir, rs.Path, filename), &defaultVars)
if err == nil {
return util.Merge(&defaultVars, &rs.Values)
}