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The option is named --exclude-if-present and accepts a parameter filename[:content]. Directories are excluded and their contents is not backed up if they contain a file with the specified name and, optionally, that starts with the specified content. The tagfile itself is never excluded. There is also a shortcut --exclude-caches that works in the same way as the likewise-named option of tar(1): Directories are recognized as cache if they contain a file named "CACHEDIR.TAG. Closes #317.
59 lines
1.5 KiB
Go
59 lines
1.5 KiB
Go
package main
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import (
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"io/ioutil"
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"os"
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"path/filepath"
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"testing"
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)
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func TestIsExcludedByFile(t *testing.T) {
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const (
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tagFilename = "CACHEDIR.TAG"
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header = "Signature: 8a477f597d28d172789f06886806bc55"
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)
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tests := []struct {
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name string
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tagFile string
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content string
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want bool
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}{
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{"NoTagfile", "", "", false},
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{"EmptyTagfile", tagFilename, "", true},
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{"UnnamedTagFile", "", header, false},
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{"WrongTagFile", "notatagfile", header, false},
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{"IncorrectSig", tagFilename, header[1:], false},
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{"ValidSig", tagFilename, header, true},
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{"ValidPlusStuff", tagFilename, header + "foo", true},
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{"ValidPlusNewlineAndStuff", tagFilename, header + "\nbar", true},
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}
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for _, tc := range tests {
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t.Run(tc.name, func(t *testing.T) {
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tempDir, err := ioutil.TempDir("", "restic-test-")
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if err != nil {
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t.Fatalf("could not create temp dir: %v", err)
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}
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defer os.RemoveAll(tempDir)
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foo := filepath.Join(tempDir, "foo")
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err = ioutil.WriteFile(foo, []byte("foo"), 0666)
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if err != nil {
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t.Fatalf("could not write file: %v", err)
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}
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if tc.tagFile != "" {
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tagFile := filepath.Join(tempDir, tc.tagFile)
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err = ioutil.WriteFile(tagFile, []byte(tc.content), 0666)
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if err != nil {
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t.Fatalf("could not write tagfile: %v", err)
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}
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}
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h := header
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if tc.content == "" {
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h = ""
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}
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if got := isExcludedByFile(foo, tagFilename, h); tc.want != got {
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t.Fatalf("expected %v, got %v", tc.want, got)
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}
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})
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}
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}
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