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git-update-cache: allow dot-files
We still refuse to add ".", ".." and ".git". In theory, you could track another git-repository by allowing ".git", but the potential for confusion is just too high.
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@ -238,13 +238,42 @@ static int refresh_cache(void)
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/*
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* We fundamentally don't like some paths: we don't want
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* dot or dot-dot anywhere, and in fact, we don't even want
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* any other dot-files (.git or anything else). They
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* are hidden, for chist sake.
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* dot or dot-dot anywhere, and for obvious reasons don't
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* want to recurse into ".git" either.
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*
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* Also, we don't want double slashes or slashes at the
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* end that can make pathnames ambiguous.
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*/
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static int verify_dotfile(const char *rest)
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{
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/*
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* The first character was '.', but that
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* has already been discarded, we now test
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* the rest.
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*/
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switch (*rest) {
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/* "." is not allowed */
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case '\0': case '/':
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return 0;
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/*
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* ".git" followed by NUL or slash is bad. This
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* shares the path end test with the ".." case.
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*/
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case 'g':
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if (rest[1] != 'i')
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break;
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if (rest[2] != 't')
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break;
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rest += 2;
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/* fallthrough */
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case '.':
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if (rest[1] == '\0' || rest[1] == '/')
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return 0;
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}
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return 1;
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}
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static int verify_path(char *path)
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{
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char c;
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@ -256,8 +285,15 @@ static int verify_path(char *path)
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if (c == '/') {
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inside:
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c = *path++;
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if (c != '/' && c != '.' && c != '\0')
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switch (c) {
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default:
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continue;
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case '/': case '\0':
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break;
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case '.':
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if (verify_dotfile(path))
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continue;
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}
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return 0;
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}
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c = *path++;
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