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Add decodeGitFilePath()
  • Loading branch information
cklin committed Oct 21, 2024
commit 2bfc468cd8e759bdcdae507b8c4221b07abd2e15
38 changes: 38 additions & 0 deletions src/actions-util.test.ts
Original file line number Diff line number Diff line change
Expand Up @@ -324,3 +324,41 @@ test("determineBaseBranchHeadCommitOid other error", async (t) => {

infoStub.restore();
});

test("decodeGitFilePath unquoted strings", async (t) => {
t.deepEqual(actionsUtil.decodeGitFilePath("foo"), "foo");
t.deepEqual(actionsUtil.decodeGitFilePath("foo bar"), "foo bar");
t.deepEqual(actionsUtil.decodeGitFilePath("foo\\\\bar"), "foo\\\\bar");
t.deepEqual(actionsUtil.decodeGitFilePath('foo\\"bar'), 'foo\\"bar');
t.deepEqual(actionsUtil.decodeGitFilePath("foo\\001bar"), "foo\\001bar");
t.deepEqual(actionsUtil.decodeGitFilePath("foo\\abar"), "foo\\abar");
t.deepEqual(actionsUtil.decodeGitFilePath("foo\\bbar"), "foo\\bbar");
t.deepEqual(actionsUtil.decodeGitFilePath("foo\\fbar"), "foo\\fbar");
t.deepEqual(actionsUtil.decodeGitFilePath("foo\\nbar"), "foo\\nbar");
t.deepEqual(actionsUtil.decodeGitFilePath("foo\\rbar"), "foo\\rbar");
t.deepEqual(actionsUtil.decodeGitFilePath("foo\\tbar"), "foo\\tbar");
t.deepEqual(actionsUtil.decodeGitFilePath("foo\\vbar"), "foo\\vbar");
t.deepEqual(
actionsUtil.decodeGitFilePath("\\a\\b\\f\\n\\r\\t\\v"),
"\\a\\b\\f\\n\\r\\t\\v",
);
});

test("decodeGitFilePath quoted strings", async (t) => {
t.deepEqual(actionsUtil.decodeGitFilePath('"foo"'), "foo");
t.deepEqual(actionsUtil.decodeGitFilePath('"foo bar"'), "foo bar");
t.deepEqual(actionsUtil.decodeGitFilePath('"foo\\\\bar"'), "foo\\bar");
t.deepEqual(actionsUtil.decodeGitFilePath('"foo\\"bar"'), 'foo"bar');
t.deepEqual(actionsUtil.decodeGitFilePath('"foo\\001bar"'), "foo\x01bar");
t.deepEqual(actionsUtil.decodeGitFilePath('"foo\\abar"'), "foo\x07bar");
t.deepEqual(actionsUtil.decodeGitFilePath('"foo\\bbar"'), "foo\bbar");
t.deepEqual(actionsUtil.decodeGitFilePath('"foo\\fbar"'), "foo\fbar");
t.deepEqual(actionsUtil.decodeGitFilePath('"foo\\nbar"'), "foo\nbar");
t.deepEqual(actionsUtil.decodeGitFilePath('"foo\\rbar"'), "foo\rbar");
t.deepEqual(actionsUtil.decodeGitFilePath('"foo\\tbar"'), "foo\tbar");
t.deepEqual(actionsUtil.decodeGitFilePath('"foo\\vbar"'), "foo\vbar");
t.deepEqual(
actionsUtil.decodeGitFilePath('"\\a\\b\\f\\n\\r\\t\\v"'),
"\x07\b\f\n\r\t\v",
);
});
48 changes: 48 additions & 0 deletions src/actions-util.ts
Original file line number Diff line number Diff line change
Expand Up @@ -161,6 +161,54 @@ export const determineBaseBranchHeadCommitOid = async function (
}
};

/**
Comment thread
henrymercer marked this conversation as resolved.
* Decode, if necessary, a file path produced by Git. See
* https://git-scm.com/docs/git-config#Documentation/git-config.txt-corequotePath
* for details on how Git encodes file paths with special characters.
*
* This function works only for Git output with `core.quotePath=false`.
*/
export const decodeGitFilePath = function (filePath: string): string {
if (filePath.startsWith('"') && filePath.endsWith('"')) {
filePath = filePath.substring(1, filePath.length - 1);
return filePath.replace(
/\\([abfnrtv\\"]|[0-7]{1,3})/g,
(_match, seq: string) => {
switch (seq[0]) {
case "a":
return "\x07";
case "b":
return "\b";
case "f":
return "\f";
case "n":
return "\n";
case "r":
return "\r";
case "t":
return "\t";
case "v":
return "\v";
case "\\":
return "\\";
case '"':
return '"';
default:
// Both String.fromCharCode() and String.fromCodePoint() works only
// for constructing an entire character at once. If a Unicode
// character is encoded as a sequence of escaped bytes, calling these
// methods sequentially on the individual byte values would *not*
// produce the original multi-byte Unicode character. As a result,
// this implementation works only with the Git option core.quotePath
// set to false.
return String.fromCharCode(parseInt(seq, 8));
}
},
);
}
return filePath;
};

/**
* Get the ref currently being analyzed.
*/
Expand Down