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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,22 +1,75 @@ | ||
| package g | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "fmt" | ||
| "strings" | ||
| ) | ||
|
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| func IsIgnored(path string, rules [][]byte) bool { | ||
|
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| // make the path relative | ||
| path = strings.TrimPrefix(path, Path()) | ||
|
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| // ignore the git directory regardless | ||
| if strings.HasPrefix(path, fmt.Sprintf("/%s/", config.GitDirectory)) { | ||
| return true | ||
| } | ||
|
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| for _, v := range rules { | ||
| prefixMatch := false | ||
| dirMatch := false | ||
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| if v == nil || len(v) == 0 { | ||
|
Check failure on line 23 in ignore.go
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| // blank line separator | ||
| continue | ||
| } | ||
| if v[0] == '#' { | ||
| // comment | ||
| continue | ||
| } | ||
| if v[0] == '\\' && v[1] == '#' { | ||
| // escaped # | ||
| v = v[1:] | ||
| } | ||
| for i, vv := range v { | ||
| // allow escaped spaces | ||
| if vv == '\\' && v[i+1] == ' ' && i < len(v)-1 { | ||
| v = append(v[:i], v[:i+1]...) | ||
| } | ||
| } | ||
| if v[0] == '/' { | ||
| // starts with / | ||
| prefixMatch = true | ||
| } else if l := bytes.LastIndex(v, []byte{'/'}); l > -1 && (l < len(v)-1 || l == 0) { | ||
| // of has / in it but not the end | ||
| prefixMatch = true | ||
| // easier to add explicit '/' | ||
| v = append([]byte{'/'}, v...) | ||
| } | ||
| if v[len(v)-1] == '/' { | ||
| dirMatch = true | ||
| } | ||
|
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| // check for suffix match | ||
| if !prefixMatch && !dirMatch { | ||
| // other things to check before using suffix ... | ||
| if bytes.HasSuffix([]byte(path), v) { | ||
| return true | ||
| } | ||
| } | ||
|
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| if dirMatch { | ||
| if path[len(path)-1] == '/' { | ||
| return true | ||
| } | ||
| } | ||
|
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| if prefixMatch { | ||
| if bytes.HasPrefix([]byte(path), v) { | ||
| return true | ||
| } | ||
| } | ||
| } | ||
| return false | ||
| } | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,94 @@ | ||
| package g | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "testing" | ||
| ) | ||
|
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| func TestIsIgnored(t *testing.T) { | ||
| type tc struct { | ||
| Pattern string | ||
| Path string | ||
| Expect bool | ||
| } | ||
| for _, tt := range []tc{ | ||
| // A blank line matches no files, so it can serve as a separator for | ||
| // readability. | ||
| {Pattern: "", Path: "/test/hello", Expect: false}, | ||
| {Pattern: "", Path: "/.git/HEAD", Expect: true}, | ||
|
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| // A line starting with # serves as a comment. Put a backslash ("\") in | ||
| // front of the first hash for patterns that begin with a hash. | ||
| {Pattern: "#test", Path: "/test/#test", Expect: false}, | ||
| {Pattern: `\#test`, Path: "/test/#test", Expect: true}, | ||
| // Trailing spaces are ignored unless they are quoted with backslash | ||
| // ("\"). | ||
| // @todo | ||
|
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| // An optional prefix "!" which negates the pattern; any matching file excluded by a previous pattern will | ||
| // become included again. It is not possible to re-include a file if a parent directory of that file is | ||
| // excluded. Git doesn’t list excluded directories for performance reasons, so any patterns on contained files | ||
| // have no effect, no matter where they are defined. Put a backslash ("\") in front of the first "!" for | ||
| // patterns that begin with a literal "!", for example, "\!important!.txt". | ||
| // @todo | ||
|
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| // The slash "/" is used as the directory separator. Separators may | ||
| // occur at the beginning, middle or end of the .gitignore search | ||
| // pattern. | ||
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| // If there is a separator at the beginning or middle (or both) of the pattern, then the pattern is relative to | ||
| // the directory level of the particular .gitignore file itself. Otherwise the pattern may also match at any | ||
| // level below the .gitignore level. | ||
| {Pattern: "/a", Path: "/a", Expect: true}, | ||
| {Pattern: "a", Path: "/a", Expect: true}, | ||
| {Pattern: "a", Path: "/b/a", Expect: true}, | ||
| {Pattern: "a", Path: "/c/b/a", Expect: true}, | ||
| {Pattern: "/a/b", Path: "/a/b", Expect: true}, | ||
| {Pattern: "a/b", Path: "/a/b", Expect: true}, | ||
| {Pattern: "a/b", Path: "/d/a/b", Expect: false}, | ||
|
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| // If there is a separator at the end of the pattern then the pattern will only match directories, otherwise the | ||
| // pattern can match both files and directories. | ||
| //{Pattern: "/a/b/", Path: "/a/b", Expect: true}, | ||
|
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| // For example, a pattern doc/frotz/ matches doc/frotz directory, but not a/doc/frotz directory; however frotz/ | ||
| // matches frotz and a/frotz that is a directory (all paths are relative from the .gitignore file). | ||
| {Pattern: "doc/frotz/", Path: "/doc/frotz/", Expect: true}, | ||
| {Pattern: "doc/frotz/", Path: "/a/doc/frotz", Expect: false}, | ||
| {Pattern: "frotz", Path: "/a/frotz", Expect: true}, | ||
|
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| // An asterisk "*" matches anything except a slash. The character "?" matches any one character except "/". The | ||
| // range notation, e.g. [a-zA-Z], can be used to match one of the characters in a range. See fnmatch(3) and the | ||
| // FNM_PATHNAME flag for a more detailed description. | ||
| // @todo | ||
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| // Two consecutive asterisks ("**") in patterns matched against full pathname may have special meaning: | ||
| // @todo | ||
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| // A leading "**" followed by a slash means match in all directories. For example, "**/foo" matches file or | ||
| // directory "foo" anywhere, the same as pattern "foo". "**/foo/bar" matches file or directory "bar" anywhere | ||
| // that is directly under directory "foo". | ||
| // @todo | ||
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| // A trailing "/**" matches everything inside. For example, "abc/**" matches all files inside directory "abc", | ||
| // relative to the location of the .gitignore file, with infinite depth. | ||
| // @todo | ||
|
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| // A slash followed by two consecutive asterisks then a slash matches zero or more directories. For example, | ||
| // "a/**/b" matches "a/b", "a/x/b", "a/x/y/b" and so on. | ||
| // @todo | ||
|
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| // Other consecutive asterisks are considered regular asterisks and will match according to the previous rules. | ||
|
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| // some ad-hoc test cases ... | ||
| {Pattern: "hello", Path: "/test/hello", Expect: true}, | ||
| {Pattern: "hello", Path: "/test/path/hello", Expect: true}, | ||
| } { | ||
| t.Run(fmt.Sprintf("%s with %s", tt.Pattern, tt.Path), func(t *testing.T) { | ||
| actual := IsIgnored(tt.Path, [][]byte{[]byte(tt.Pattern)}) | ||
| if actual != tt.Expect { | ||
| t.Errorf("got %v, want %v", actual, tt.Expect) | ||
| } | ||
| }) | ||
| } | ||
| } |