mirror of
https://github.com/JetSetIlly/Gopher2600.git
synced 2025-04-02 11:02:17 -04:00
a376a59a1d
running resources.JoinPath() on the results of a previous call caused the OS/build base path to be prepended again. the function now checks to see if the base path already exists.
55 lines
1.5 KiB
Go
55 lines
1.5 KiB
Go
// This file is part of Gopher2600.
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//
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// Gopher2600 is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Gopher2600 is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Gopher2600. If not, see <https://www.gnu.org/licenses/>.
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package resources
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import (
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"os"
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"path/filepath"
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"strings"
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"github.com/jetsetilly/gopher2600/resources/fs"
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)
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// JoinPath prepends the supplied path with a with OS/build specific base
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// paths, if required.
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//
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// The function creates all folders necessary to reach the end of sub-path. It
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// does not otherwise touch or create the file.
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func JoinPath(path ...string) (string, error) {
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// join supplied path
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p := filepath.Join(path...)
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// do not prepend OS/build specific base path if it is already present
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b, err := baseResourcePath()
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if err != nil {
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return "", err
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}
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if !strings.HasPrefix(p, b) {
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p = filepath.Join(b, filepath.Join(path...))
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}
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// check if path already exists
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if _, err := os.Stat(p); err == nil {
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return p, nil
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}
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// create path if necessary
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if err := fs.MkdirAll(filepath.Dir(p), 0700); err != nil {
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return "", err
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}
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return p, nil
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}
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