f4f1339fe6
The subprojects needs special handling, since they refer to objects which normally won't exist in the refering repository. Fix some extended header bugs and missing features while at it. Signed-off-by: Lars Hjemli <hjemli@gmail.com>
142 lines
3.3 KiB
C
142 lines
3.3 KiB
C
/* ui-diff.c: show diff between two blobs
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*
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* Copyright (C) 2006 Lars Hjemli
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*
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* Licensed under GNU General Public License v2
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* (see COPYING for full license text)
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*/
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#include "cgit.h"
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/*
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* print a single line returned from xdiff
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*/
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static void print_line(char *line, int len)
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{
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char *class = "ctx";
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char c = line[len-1];
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if (line[0] == '+')
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class = "add";
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else if (line[0] == '-')
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class = "del";
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else if (line[0] == '@')
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class = "hunk";
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htmlf("<div class='%s'>", class);
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line[len-1] = '\0';
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html_txt(line);
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html("</div>");
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line[len-1] = c;
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}
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static void header(unsigned char *sha1, char *path1, int mode1,
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unsigned char *sha2, char *path2, int mode2)
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{
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char *abbrev1, *abbrev2;
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int subproject;
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subproject = (S_ISDIRLNK(mode1) || S_ISDIRLNK(mode2));
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html("<tr><td>");
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html("<div class='head'>");
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html("diff --git a/");
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html_txt(path1);
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html(" b/");
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html_txt(path2);
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if (is_null_sha1(sha1))
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path1 = "dev/null";
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if (is_null_sha1(sha2))
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path2 = "dev/null";
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if (mode1 == 0)
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htmlf("<br/>new file mode %.6o", mode2);
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if (mode2 == 0)
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htmlf("<br/>deleted file mode %.6o", mode1);
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if (!subproject) {
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abbrev1 = xstrdup(find_unique_abbrev(sha1, DEFAULT_ABBREV));
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abbrev2 = xstrdup(find_unique_abbrev(sha2, DEFAULT_ABBREV));
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htmlf("<br/>index %s..%s", abbrev1, abbrev2);
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free(abbrev1);
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free(abbrev2);
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if (mode1 != 0 && mode2 != 0) {
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htmlf(" %.6o", mode1);
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if (mode2 != mode1)
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htmlf("..%.6o", mode2);
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}
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html("<br/>--- a/");
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html_txt(path1);
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html("<br/>+++ b/");
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html_txt(path2);
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}
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html("</div>");
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}
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static void filepair_cb(struct diff_filepair *pair)
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{
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header(pair->one->sha1, pair->one->path, pair->one->mode,
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pair->two->sha1, pair->two->path, pair->two->mode);
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if (S_ISDIRLNK(pair->one->mode) || S_ISDIRLNK(pair->two->mode)) {
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if (S_ISDIRLNK(pair->one->mode))
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print_line(fmt("-Subproject %s", sha1_to_hex(pair->one->sha1)), 52);
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if (S_ISDIRLNK(pair->two->mode))
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print_line(fmt("+Subproject %s", sha1_to_hex(pair->two->sha1)), 52);
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return;
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}
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if (cgit_diff_files(pair->one->sha1, pair->two->sha1, print_line))
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cgit_print_error("Error running diff");
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}
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void cgit_print_diff(const char *head, const char *old_hex, const char *new_hex, char *path)
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{
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unsigned char sha1[20], sha2[20];
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enum object_type type;
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unsigned long size;
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struct commit *commit;
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if (head && !old_hex && !new_hex) {
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get_sha1(head, sha1);
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commit = lookup_commit_reference(sha1);
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if (commit && !parse_commit(commit)) {
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html("<table class='diff'>");
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cgit_diff_commit(commit, filepair_cb);
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html("</td></tr></table>");
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}
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return;
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}
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get_sha1(old_hex, sha1);
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get_sha1(new_hex, sha2);
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type = sha1_object_info(sha1, &size);
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if (type == OBJ_BAD) {
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type = sha1_object_info(sha2, &size);
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if (type == OBJ_BAD) {
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cgit_print_error(fmt("Bad object names: %s, %s", old_hex, new_hex));
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return;
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}
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}
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html("<table class='diff'>");
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switch(type) {
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case OBJ_BLOB:
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html("<tr><td>");
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header(sha1, path, 0644, sha2, path, 0644);
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if (cgit_diff_files(sha1, sha2, print_line))
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cgit_print_error("Error running diff");
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html("</tr></td>");
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break;
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case OBJ_TREE:
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cgit_diff_tree(sha1, sha2, filepair_cb);
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break;
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default:
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cgit_print_error(fmt("Unhandled object type: %s",
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typename(type)));
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break;
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}
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html("</td></tr></table>");
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}
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