ui-tree.c

   1 /* ui-tree.c: functions for tree output
   2  *
   3  * Copyright (C) 2006 Lars Hjemli
   4  *
   5  * Licensed under GNU General Public License v2
   6  *   (see COPYING for full license text)
   7  */
   8
   9 #include "cgit.h"
  10 #include "html.h"
  11
  12 char *curr_rev;
  13 char *match_path;
  14 int header = 0;
  15
  16 static void print_object(const unsigned char *sha1, char *path)
  17 {
  18         enum object_type type;
  19         char *buf;
  20         unsigned long size, lineno, start, idx;
  21         const char *linefmt = "<tr><td class='no'><a id='n%1$d' name='n%1$d' href='#n%1$d'>%1$d</a></td><td class='txt'>";
  22
  23         type = sha1_object_info(sha1, &size);
  24         if (type == OBJ_BAD) {
  25                 cgit_print_error(fmt("Bad object name: %s",
  26                                      sha1_to_hex(sha1)));
  27                 return;
  28         }
  29
  30         buf = read_sha1_file(sha1, &type, &size);
  31         if (!buf) {
  32                 cgit_print_error(fmt("Error reading object %s",
  33                                      sha1_to_hex(sha1)));
  34                 return;
  35         }
  36
  37         html(" blob: <a href='");
  38         html_attr(cgit_pageurl(ctx.qry.repo, "blob", fmt("id=%s", sha1_to_hex(sha1))));
  39         htmlf("'>%s</a>",sha1_to_hex(sha1));
  40
  41         html("<table summary='blob content' class='blob'>\n");
  42         idx = 0;
  43         start = 0;
  44         lineno = 0;
  45         while(idx < size) {
  46                 if (buf[idx] == '\n') {
  47                         buf[idx] = '\0';
  48                         htmlf(linefmt, ++lineno);
  49                         html_txt(buf + start);
  50                         html("</td></tr>\n");
  51                         start = idx + 1;
  52                 }
  53                 idx++;
  54         }
  55         htmlf(linefmt, ++lineno);
  56         html_txt(buf + start);
  57         html("</td></tr>\n");
  58         html("</table>\n");
  59 }
  60
  61
  62 static int ls_item(const unsigned char *sha1, const char *base, int baselen,
  63                    const char *pathname, unsigned int mode, int stage)
  64 {
  65         char *name;
  66         char *fullpath;
  67         enum object_type type;
  68         unsigned long size = 0;
  69
  70         name = xstrdup(pathname);
  71         fullpath = fmt("%s%s%s", ctx.qry.path ? ctx.qry.path : "",
  72                        ctx.qry.path ? "/" : "", name);
  73
  74         type = sha1_object_info(sha1, &size);
  75         if (type == OBJ_BAD && !S_ISGITLINK(mode)) {
  76                 htmlf("<tr><td colspan='3'>Bad object: %s %s</td></tr>",
  77                       name,
  78                       sha1_to_hex(sha1));
  79                 return 0;
  80         }
  81
  82         html("<tr><td class='ls-mode'>");
  83         cgit_print_filemode(mode);
  84         html("</td><td>");
  85         if (S_ISGITLINK(mode)) {
  86                 htmlf("<a class='ls-mod' href='");
  87                 html_attr(fmt(ctx.repo->module_link,
  88                               name,
  89                               sha1_to_hex(sha1)));
  90                 html("'>");
  91                 html_txt(name);
  92                 html("</a>");
  93         } else if (S_ISDIR(mode)) {
  94                 cgit_tree_link(name, NULL, "ls-dir", ctx.qry.head,
  95                                curr_rev, fullpath);
  96         } else {
  97                 cgit_tree_link(name, NULL, "ls-blob", ctx.qry.head,
  98                                curr_rev, fullpath);
  99         }
 100         htmlf("</td><td class='ls-size'>%li</td>", size);
 101
 102         html("<td>");
 103         cgit_log_link("log", NULL, "button", ctx.qry.head, curr_rev,
 104                       fullpath, 0, NULL, NULL);
 105         html("</td></tr>\n");
 106         free(name);
 107         return 0;
 108 }
 109
 110 static void ls_head()
 111 {
 112         html("<table summary='tree listing' class='list'>\n");
 113         html("<tr class='nohover'>");
 114         html("<th class='left'>Mode</th>");
 115         html("<th class='left'>Name</th>");
 116         html("<th class='right'>Size</th>");
 117         html("<th/>");
 118         html("</tr>\n");
 119         header = 1;
 120 }
 121
 122 static void ls_tail()
 123 {
 124         if (!header)
 125                 return;
 126         html("</table>\n");
 127         header = 0;
 128 }
 129
 130 static void ls_tree(const unsigned char *sha1, char *path)
 131 {
 132         struct tree *tree;
 133
 134         tree = parse_tree_indirect(sha1);
 135         if (!tree) {
 136                 cgit_print_error(fmt("Not a tree object: %s",
 137                                      sha1_to_hex(sha1)));
 138                 return;
 139         }
 140
 141         ls_head();
 142         read_tree_recursive(tree, "", 0, 1, NULL, ls_item);
 143         ls_tail();
 144 }
 145
 146
 147 static int walk_tree(const unsigned char *sha1, const char *base, int baselen,
 148                      const char *pathname, unsigned mode, int stage)
 149 {
 150         static int state;
 151         static char buffer[PATH_MAX];
 152         char *url;
 153
 154         if (state == 0) {
 155                 memcpy(buffer, base, baselen);
 156                 strcpy(buffer+baselen, pathname);
 157                 url = cgit_pageurl(ctx.qry.repo, "tree",
 158                                    fmt("h=%s&amp;path=%s", curr_rev, buffer));
 159                 html("/");
 160                 cgit_tree_link(xstrdup(pathname), NULL, NULL, ctx.qry.head,
 161                                curr_rev, buffer);
 162
 163                 if (strcmp(match_path, buffer))
 164                         return READ_TREE_RECURSIVE;
 165
 166                 if (S_ISDIR(mode)) {
 167                         state = 1;
 168                         ls_head();
 169                         return READ_TREE_RECURSIVE;
 170                 } else {
 171                         print_object(sha1, buffer);
 172                         return 0;
 173                 }
 174         }
 175         ls_item(sha1, base, baselen, pathname, mode, stage);
 176         return 0;
 177 }
 178
 179
 180 /*
 181  * Show a tree or a blob
 182  *   rev:  the commit pointing at the root tree object
 183  *   path: path to tree or blob
 184  */
 185 void cgit_print_tree(const char *rev, char *path)
 186 {
 187         unsigned char sha1[20];
 188         struct commit *commit;
 189         const char *paths[] = {path, NULL};
 190
 191         if (!rev)
 192                 rev = ctx.qry.head;
 193
 194         curr_rev = xstrdup(rev);
 195         if (get_sha1(rev, sha1)) {
 196                 cgit_print_error(fmt("Invalid revision name: %s", rev));
 197                 return;
 198         }
 199         commit = lookup_commit_reference(sha1);
 200         if (!commit || parse_commit(commit)) {
 201                 cgit_print_error(fmt("Invalid commit reference: %s", rev));
 202                 return;
 203         }
 204
 205         html("path: <a href='");
 206         html_attr(cgit_pageurl(ctx.qry.repo, "tree", fmt("h=%s", rev)));
 207         html("'>root</a>");
 208
 209         if (path == NULL) {
 210                 ls_tree(commit->tree->object.sha1, NULL);
 211                 return;
 212         }
 213
 214         match_path = path;
 215         read_tree_recursive(commit->tree, NULL, 0, 0, paths, walk_tree);
 216         ls_tail();
 217 }