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optimize(Commit): detect selected file type before reading its content

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This commit is contained in:
leo 2020-08-12 14:24:38 +08:00
parent 8628e2af2d
commit 42c933ab54
1 changed files with 24 additions and 17 deletions
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39
src/Git/Commit.cs
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@ -11,6 +11,7 @@ namespace SourceGit.Git {
public class Commit {
private static readonly string GPGSIG_START = "gpgsig -----BEGIN PGP SIGNATURE-----";
private static readonly string GPGSIG_END = " -----END PGP SIGNATURE-----";
private static readonly Regex REG_TESTBINARY = new Regex(@"^\-\s+\-\s+.*$");
/// <summary>
/// Object in commit.
@ -227,30 +228,36 @@ namespace SourceGit.Git {
var count = 0;
var binary = false;
var errs = repo.RunCommand($"show {SHA}:\"{file}\"", line => {
if (binary) return;
count++;
if (data.Count >= 1000) return;
if (line.IndexOf('\0') >= 0) {
binary = true;
data.Clear();
data.Add("BINARY FILE PREVIEW NOT SUPPORTED!");
return;
}
data.Add(line);
repo.RunCommand($"diff 4b825dc642cb6eb9a060e54bf8d69288fbee4904 {SHA} --numstat -- \"{file}\"", line => {
if (REG_TESTBINARY.IsMatch(line)) binary = true;
});
if (!binary) {
var errs = repo.RunCommand($"show {SHA}:\"{file}\"", line => {
if (binary) return;
count++;
if (data.Count >= 1000) return;
if (line.IndexOf('\0') >= 0) {
binary = true;
data.Clear();
data.Add("BINARY FILE PREVIEW NOT SUPPORTED!");
return;
}
data.Add(line);
});
if (errs != null) App.RaiseError(errs);
}
if (!binary && count > 1000) {
data.Add("...");
data.Add($"Total {count} lines. Hide {count-1000} lines.");
}
isBinary = binary;
if (errs != null) App.RaiseError(errs);
return string.Join("\n", data);
}