9807213e60
This commit replaces deprecated calls to `os.Is{Not,}Exist` with the
newer `errors.Is(err, fs.Err{Not,}Exist)`.
42 lines
1.1 KiB
Go
42 lines
1.1 KiB
Go
package cli
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import (
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"context"
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"errors"
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"io/fs"
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"os"
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"os/signal"
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"path/filepath"
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"github.com/FAU-CDI/wisski-distillery/internal/bootstrap"
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)
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// Params are used to initialize the excutable.
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type Params struct {
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ConfigPath string // ConfigPath is the path to the configuration file for the distillery
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Context context.Context // Context for the distillery
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}
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// ParamsFromEnv creates a new set of parameters from the environment.
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// Uses [ReadBaseDirectory] or falls back to [BaseDirectoryDefault].
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func ParamsFromEnv() (params Params, err error) {
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// try to read the base directory!
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value, err := ReadBaseDirectory()
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switch {
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case errors.Is(err, fs.ErrNotExist):
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params.ConfigPath = bootstrap.BaseDirectoryDefault
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case err == nil:
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params.ConfigPath = value
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default:
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return params, err
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}
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// and add the configuration file name to it!
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params.ConfigPath = filepath.Join(params.ConfigPath, bootstrap.ConfigFile)
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// generate a new context
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params.Context, _ = signal.NotifyContext(context.Background(), os.Interrupt)
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// and return the params!
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return params, nil
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}
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