53 lines
1.3 KiB
Go
53 lines
1.3 KiB
Go
// Package env manages the daemon-global environment for ollie.
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// It loads $XDG_CONFIG_HOME/ollie/env and provides defaults.
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package env
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import (
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"bufio"
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"os"
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"path/filepath"
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"strings"
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"ollie/paths"
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)
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// EnsureDefaults loads $XDG_CONFIG_HOME/ollie/env and sets default values for any
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// OLLIE_* vars not already present in the process environment.
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func EnsureDefaults() {
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loadFile(filepath.Join(paths.CfgDir(), "env"))
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}
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// loadFile reads KEY=VALUE pairs from path and sets any key not already
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// present in the environment. Lines beginning with # and blank lines are
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// ignored. Missing file is silently ignored.
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func loadFile(path string) {
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f, err := os.Open(path)
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if err != nil {
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return
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}
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defer f.Close()
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sc := bufio.NewScanner(f)
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for sc.Scan() {
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line := strings.TrimSpace(sc.Text())
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if line == "" || strings.HasPrefix(line, "#") {
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continue
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}
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k, v, ok := strings.Cut(line, "=")
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if !ok {
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continue
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}
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k = strings.TrimSpace(k)
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if i := strings.Index(v, " #"); i >= 0 {
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v = v[:i]
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}
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v = strings.TrimSpace(v)
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if len(v) >= 2 && (v[0] == '"' && v[len(v)-1] == '"' || v[0] == '\'' && v[len(v)-1] == '\'') {
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v = v[1 : len(v)-1]
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}
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if k != "" && os.Getenv(k) == "" {
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os.Setenv(k, paths.ExpandHome(os.ExpandEnv(v))) //nolint:errcheck
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}
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}
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}
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