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144 lines
3.0 KiB
144 lines
3.0 KiB
/* |
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* Copyright (C) 2005 Junio C Hamano |
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*/ |
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#include "cache.h" |
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#include "strbuf.h" |
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#include "diff.h" |
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#include "diffcore.h" /* just for MAX_SCORE */ |
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static const char *pickaxe = NULL; |
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static int line_termination = '\n'; |
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static int inter_name_termination = '\t'; |
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static const char *diff_helper_usage = |
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"git-diff-helper [-z] [-S<string>] paths..."; |
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int main(int ac, const char **av) { |
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struct strbuf sb; |
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strbuf_init(&sb); |
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while (1 < ac && av[1][0] == '-') { |
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if (av[1][1] == 'z') |
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line_termination = inter_name_termination = 0; |
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else if (av[1][1] == 'S') { |
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pickaxe = av[1] + 2; |
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} |
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else |
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usage(diff_helper_usage); |
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ac--; av++; |
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} |
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/* the remaining parameters are paths patterns */ |
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diff_setup(0); |
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while (1) { |
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unsigned old_mode, new_mode; |
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unsigned char old_sha1[20], new_sha1[20]; |
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char old_path[PATH_MAX]; |
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int status, score, two_paths; |
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char new_path[PATH_MAX]; |
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int ch; |
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char *cp, *ep; |
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read_line(&sb, stdin, line_termination); |
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if (sb.eof) |
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break; |
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switch (sb.buf[0]) { |
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case ':': |
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/* parse the first part up to the status */ |
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cp = sb.buf + 1; |
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old_mode = new_mode = 0; |
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while ((ch = *cp) && ('0' <= ch && ch <= '7')) { |
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old_mode = (old_mode << 3) | (ch - '0'); |
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cp++; |
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} |
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if (*cp++ != ' ') |
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break; |
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while ((ch = *cp) && ('0' <= ch && ch <= '7')) { |
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new_mode = (new_mode << 3) | (ch - '0'); |
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cp++; |
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} |
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if (*cp++ != ' ') |
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break; |
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if (get_sha1_hex(cp, old_sha1)) |
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break; |
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cp += 40; |
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if (*cp++ != ' ') |
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break; |
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if (get_sha1_hex(cp, new_sha1)) |
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break; |
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cp += 40; |
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if (*cp++ != ' ') |
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break; |
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status = *cp++; |
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if (!strchr("MCRNDU", status)) |
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break; |
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two_paths = score = 0; |
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if (status == 'R' || status == 'C') { |
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two_paths = 1; |
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sscanf(cp, "%d", &score); |
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score = score * MAX_SCORE / 100; |
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if (line_termination) { |
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cp = strchr(cp, |
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inter_name_termination); |
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if (!cp) |
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break; |
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} |
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} |
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if (*cp++ != inter_name_termination) |
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break; |
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/* first pathname */ |
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if (!line_termination) { |
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read_line(&sb, stdin, line_termination); |
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if (sb.eof) |
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break; |
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strcpy(old_path, sb.buf); |
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} |
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else if (!two_paths) |
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strcpy(old_path, cp); |
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else { |
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ep = strchr(cp, inter_name_termination); |
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if (!ep) |
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break; |
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strncpy(old_path, cp, ep-cp); |
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old_path[ep-cp] = 0; |
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cp = ep + 1; |
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} |
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/* second pathname */ |
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if (!two_paths) |
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strcpy(new_path, old_path); |
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else { |
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if (!line_termination) { |
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read_line(&sb, stdin, |
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line_termination); |
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if (sb.eof) |
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break; |
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strcpy(new_path, sb.buf); |
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} |
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else |
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strcpy(new_path, cp); |
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} |
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diff_helper_input(old_mode, new_mode, |
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old_sha1, new_sha1, |
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old_path, status, score, |
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new_path); |
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continue; |
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} |
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if (pickaxe) |
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diffcore_pickaxe(pickaxe); |
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if (1 < ac) |
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diffcore_pathspec(av + 1); |
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diff_flush(DIFF_FORMAT_PATCH, 0); |
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printf("%s\n", sb.buf); |
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} |
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if (pickaxe) |
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diffcore_pickaxe(pickaxe); |
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if (1 < ac) |
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diffcore_pathspec(av + 1); |
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diff_flush(DIFF_FORMAT_PATCH, 0); |
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return 0; |
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}
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