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45 lines
1.6 KiB
Go
45 lines
1.6 KiB
Go
package tmpdir
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import (
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"os"
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"runtime"
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"go.podman.io/image/v5/types"
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)
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// unixTempDirForBigFiles is the directory path to store big files on non Windows systems.
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// You can override this at build time with
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// -ldflags '-X go.podman.io/image/v5/internal/tmpdir.unixTempDirForBigFiles=$your_path'
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var unixTempDirForBigFiles = builtinUnixTempDirForBigFiles
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// builtinUnixTempDirForBigFiles is the directory path to store big files.
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// Do not use the system default of os.TempDir(), usually /tmp, because with systemd it could be a tmpfs.
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// DO NOT change this, instead see unixTempDirForBigFiles above.
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const builtinUnixTempDirForBigFiles = "/var/tmp"
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const prefix = "container_images_"
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// TemporaryDirectoryForBigFiles returns a directory for temporary (big) files.
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// On non Windows systems it avoids the use of os.TempDir(), because the default temporary directory usually falls under /tmp
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// which on systemd based systems could be the unsuitable tmpfs filesystem.
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func temporaryDirectoryForBigFiles(sys *types.SystemContext) string {
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if sys != nil && sys.BigFilesTemporaryDir != "" {
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return sys.BigFilesTemporaryDir
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}
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var temporaryDirectoryForBigFiles string
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if runtime.GOOS == "windows" {
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temporaryDirectoryForBigFiles = os.TempDir()
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} else {
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temporaryDirectoryForBigFiles = unixTempDirForBigFiles
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}
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return temporaryDirectoryForBigFiles
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}
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func CreateBigFileTemp(sys *types.SystemContext, name string) (*os.File, error) {
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return os.CreateTemp(temporaryDirectoryForBigFiles(sys), prefix+name)
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}
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func MkDirBigFileTemp(sys *types.SystemContext, name string) (string, error) {
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return os.MkdirTemp(temporaryDirectoryForBigFiles(sys), prefix+name)
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}
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