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7ffa66d1a5
We've been moving away from config fields expecting file paths that Terraform will load, instead prefering fields that expect file contents, leaning on `file()` to do loading from a path. This helps with consistency and also flexibility - since this makes it easier to shift sensitive files into environment variables. Here we add a little helper package to manage the transitional period for these fields where we support both behaviors. Also included is the first of several fields being shifted over - SSH private keys in provisioner connection config. We're moving to new field names so the behavior is more intuitive, so instead of `key_file` it's `private_key` now. Additional field shifts will be included in follow up PRs so they can be reviewed and discussed individually.
41 lines
874 B
Go
41 lines
874 B
Go
// Helpers for dealing with file paths and their contents
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package pathorcontents
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import (
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"io/ioutil"
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"os"
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"github.com/mitchellh/go-homedir"
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)
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// If the argument is a path, Read loads it and returns the contents,
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// otherwise the argument is assumed to be the desired contents and is simply
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// returned.
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//
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// The boolean second return value can be called `wasPath` - it indicates if a
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// path was detected and a file loaded.
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func Read(poc string) (string, bool, error) {
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if len(poc) == 0 {
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return poc, false, nil
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}
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path := poc
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if path[0] == '~' {
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var err error
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path, err = homedir.Expand(path)
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if err != nil {
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return path, true, err
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}
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}
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if _, err := os.Stat(path); err == nil {
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contents, err := ioutil.ReadFile(path)
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if err != nil {
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return string(contents), true, err
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}
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return string(contents), true, nil
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}
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return poc, false, nil
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}
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