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
  11 char *curr_rev;
  12 char *match_path;
  13 int header = 0;
  14
  15 static void print_object(const unsigned char *sha1, char *path)
  16 {
  17         enum object_type type;
  18         char *buf;
  19         unsigned long size, lineno, start, idx;
  20         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'>";
  21
  22         type = sha1_object_info(sha1, &size);
  23         if (type == OBJ_BAD) {
  24                 cgit_print_error(fmt("Bad object name: %s",
  25                                      sha1_to_hex(sha1)));
  26                 return;
  27         }
  28
  29         buf = read_sha1_file(sha1, &type, &size);
  30         if (!buf) {
  31                 cgit_print_error(fmt("Error reading object %s",
  32                                      sha1_to_hex(sha1)));
  33                 return;
  34         }
  35
  36         html(" blob: <a href='");
  37         html_attr(cgit_pageurl(cgit_query_repo, "blob", fmt("id=%s", sha1_to_hex(sha1))));
  38         htmlf("'>%s</a>",sha1_to_hex(sha1));
  39
  40         html("<table summary='blob content' class='blob'>\n");
  41         idx = 0;
  42         start = 0;
  43         lineno = 0;
  44         while(idx < size) {
  45                 if (buf[idx] == '\n') {
  46                         buf[idx] = '\0';
  47                         htmlf(linefmt, ++lineno);
  48                         html_txt(buf + start);
  49                         html("</td></tr>\n");
  50                         start = idx + 1;
  51                 }
  52                 idx++;
  53         }
  54         htmlf(linefmt, ++lineno);
  55         html_txt(buf + start);
  56         html("</td></tr>\n");
  57         html("</table>\n");
  58 }
  59
  60
  61 static int ls_item(const unsigned char *sha1, const char *base, int baselen,
  62                    const char *pathname, unsigned int mode, int stage)
  63 {
  64         char *name;
  65         char *fullpath;
  66         enum object_type type;
  67         unsigned long size = 0;
  68
  69         name = xstrdup(pathname);
  70         fullpath = fmt("%s%s%s", cgit_query_path ? cgit_query_path : "",
  71                        cgit_query_path ? "/" : "", name);
  72
  73         type = sha1_object_info(sha1, &size);
  74         if (type == OBJ_BAD && !S_ISGITLINK(mode)) {
  75                 htmlf("<tr><td colspan='3'>Bad object: %s %s</td></tr>",
  76                       name,
  77                       sha1_to_hex(sha1));
  78                 return 0;
  79         }
  80
  81         html("<tr><td class='ls-mode'>");
  82         html_filemode(mode);
  83         html("</td><td>");
  84         if (S_ISGITLINK(mode)) {
  85                 htmlf("<a class='ls-mod' href='");
  86                 html_attr(fmt(cgit_repo->module_link,
  87                               name,
  88                               sha1_to_hex(sha1)));
  89                 html("'>");
  90                 html_txt(name);
  91                 html("</a>");
  92         } else if (S_ISDIR(mode)) {
  93                 cgit_tree_link(name, NULL, "ls-dir", cgit_query_head,
  94                                curr_rev, fullpath);
  95         } else {
  96                 cgit_tree_link(name, NULL, "ls-blob", cgit_query_head,
  97                                curr_rev, fullpath);
  98         }
  99         htmlf("</td><td class='ls-size'>%li</td>", size);
 100
 101         html("<td>");
 102         cgit_log_link("log", NULL, "button", cgit_query_head, curr_rev,
 103                       fullpath, 0, NULL, NULL);
 104         html("</td></tr>\n");
 105         free(name);
 106         return 0;
 107 }
 108
 109 static void ls_head()
 110 {
 111         html("<table summary='tree listing' class='list'>\n");
 112         html("<tr class='nohover'>");
 113         html("<th class='left'>Mode</th>");
 114         html("<th class='left'>Name</th>");
 115         html("<th class='right'>Size</th>");
 116         html("<th/>");
 117         html("</tr>\n");
 118         header = 1;
 119 }
 120
 121 static void ls_tail()
 122 {
 123         if (!header)
 124                 return;
 125         html("</table>\n");
 126         header = 0;
 127 }
 128
 129 static void ls_tree(const unsigned char *sha1, char *path)
 130 {
 131         struct tree *tree;
 132
 133         tree = parse_tree_indirect(sha1);
 134         if (!tree) {
 135                 cgit_print_error(fmt("Not a tree object: %s",
 136                                      sha1_to_hex(sha1)));
 137                 return;
 138         }
 139
 140         ls_head();
 141         read_tree_recursive(tree, "", 0, 1, NULL, ls_item);
 142         ls_tail();
 143 }
 144
 145
 146 static int walk_tree(const unsigned char *sha1, const char *base, int baselen,
 147                      const char *pathname, unsigned mode, int stage)
 148 {
 149         static int state;
 150         static char buffer[PATH_MAX];
 151         char *url;
 152
 153         if (state == 0) {
 154                 memcpy(buffer, base, baselen);
 155                 strcpy(buffer+baselen, pathname);
 156                 url = cgit_pageurl(cgit_query_repo, "tree",
 157                                    fmt("h=%s&amp;path=%s", curr_rev, buffer));
 158                 html("/");
 159                 cgit_tree_link(xstrdup(pathname), NULL, NULL, cgit_query_head,
 160                                curr_rev, buffer);
 161
 162                 if (strcmp(match_path, buffer))
 163                         return READ_TREE_RECURSIVE;
 164
 165                 if (S_ISDIR(mode)) {
 166                         state = 1;
 167                         ls_head();
 168                         return READ_TREE_RECURSIVE;
 169                 } else {
 170                         print_object(sha1, buffer);
 171                         return 0;
 172                 }
 173         }
 174         ls_item(sha1, base, baselen, pathname, mode, stage);
 175         return 0;
 176 }
 177
 178
 179 /*
 180  * Show a tree or a blob
 181  *   rev:  the commit pointing at the root tree object
 182  *   path: path to tree or blob
 183  */
 184 void cgit_print_tree(const char *rev, char *path)
 185 {
 186         unsigned char sha1[20];
 187         struct commit *commit;
 188         const char *paths[] = {path, NULL};
 189
 190         if (!rev)
 191                 rev = cgit_query_head;
 192
 193         curr_rev = xstrdup(rev);
 194         if (get_sha1(rev, sha1)) {
 195                 cgit_print_error(fmt("Invalid revision name: %s", rev));
 196                 return;
 197         }
 198         commit = lookup_commit_reference(sha1);
 199         if (!commit || parse_commit(commit)) {
 200                 cgit_print_error(fmt("Invalid commit reference: %s", rev));
 201                 return;
 202         }
 203
 204         html("path: <a href='");
 205         html_attr(cgit_pageurl(cgit_query_repo, "tree", fmt("h=%s", rev)));
 206         html("'>root</a>");
 207
 208         if (path == NULL) {
 209                 ls_tree(commit->tree->object.sha1, NULL);
 210                 return;
 211         }
 212
 213         match_path = path;
 214         read_tree_recursive(commit->tree, NULL, 0, 0, paths, walk_tree);
 215         ls_tail();
 216 }