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 #include "ui-shared.h"
  12
  13 char *curr_rev;
  14 char *match_path;
  15 int header = 0;
  16
  17 static void print_object(const unsigned char *sha1, char *path)
  18 {
  19         enum object_type type;
  20         char *buf;
  21         unsigned long size, lineno, start, idx;
  22         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'>";
  23
  24         type = sha1_object_info(sha1, &size);
  25         if (type == OBJ_BAD) {
  26                 cgit_print_error(fmt("Bad object name: %s",
  27                                      sha1_to_hex(sha1)));
  28                 return;
  29         }
  30
  31         buf = read_sha1_file(sha1, &type, &size);
  32         if (!buf) {
  33                 cgit_print_error(fmt("Error reading object %s",
  34                                      sha1_to_hex(sha1)));
  35                 return;
  36         }
  37
  38         html(" blob: <a href='");
  39         html_attr(cgit_pageurl(ctx.qry.repo, "blob", fmt("id=%s", sha1_to_hex(sha1))));
  40         htmlf("'>%s</a>",sha1_to_hex(sha1));
  41
  42         html("<table summary='blob content' class='blob'>\n");
  43         idx = 0;
  44         start = 0;
  45         lineno = 0;
  46         while(idx < size) {
  47                 if (buf[idx] == '\n') {
  48                         buf[idx] = '\0';
  49                         htmlf(linefmt, ++lineno);
  50                         html_txt(buf + start);
  51                         html("</td></tr>\n");
  52                         start = idx + 1;
  53                 }
  54                 idx++;
  55         }
  56         htmlf(linefmt, ++lineno);
  57         html_txt(buf + start);
  58         html("</td></tr>\n");
  59         html("</table>\n");
  60 }
  61
  62
  63 static int ls_item(const unsigned char *sha1, const char *base, int baselen,
  64                    const char *pathname, unsigned int mode, int stage)
  65 {
  66         char *name;
  67         char *fullpath;
  68         enum object_type type;
  69         unsigned long size = 0;
  70
  71         name = xstrdup(pathname);
  72         fullpath = fmt("%s%s%s", ctx.qry.path ? ctx.qry.path : "",
  73                        ctx.qry.path ? "/" : "", name);
  74
  75         type = sha1_object_info(sha1, &size);
  76         if (type == OBJ_BAD && !S_ISGITLINK(mode)) {
  77                 htmlf("<tr><td colspan='3'>Bad object: %s %s</td></tr>",
  78                       name,
  79                       sha1_to_hex(sha1));
  80                 return 0;
  81         }
  82
  83         html("<tr><td class='ls-mode'>");
  84         cgit_print_filemode(mode);
  85         html("</td><td>");
  86         if (S_ISGITLINK(mode)) {
  87                 htmlf("<a class='ls-mod' href='");
  88                 html_attr(fmt(ctx.repo->module_link,
  89                               name,
  90                               sha1_to_hex(sha1)));
  91                 html("'>");
  92                 html_txt(name);
  93                 html("</a>");
  94         } else if (S_ISDIR(mode)) {
  95                 cgit_tree_link(name, NULL, "ls-dir", ctx.qry.head,
  96                                curr_rev, fullpath);
  97         } else {
  98                 cgit_tree_link(name, NULL, "ls-blob", ctx.qry.head,
  99                                curr_rev, fullpath);
 100         }
 101         htmlf("</td><td class='ls-size'>%li</td>", size);
 102
 103         html("<td>");
 104         cgit_log_link("log", NULL, "button", ctx.qry.head, curr_rev,
 105                       fullpath, 0, NULL, NULL);
 106         html("</td></tr>\n");
 107         free(name);
 108         return 0;
 109 }
 110
 111 static void ls_head()
 112 {
 113         html("<table summary='tree listing' class='list'>\n");
 114         html("<tr class='nohover'>");
 115         html("<th class='left'>Mode</th>");
 116         html("<th class='left'>Name</th>");
 117         html("<th class='right'>Size</th>");
 118         html("<th/>");
 119         html("</tr>\n");
 120         header = 1;
 121 }
 122
 123 static void ls_tail()
 124 {
 125         if (!header)
 126                 return;
 127         html("</table>\n");
 128         header = 0;
 129 }
 130
 131 static void ls_tree(const unsigned char *sha1, char *path)
 132 {
 133         struct tree *tree;
 134
 135         tree = parse_tree_indirect(sha1);
 136         if (!tree) {
 137                 cgit_print_error(fmt("Not a tree object: %s",
 138                                      sha1_to_hex(sha1)));
 139                 return;
 140         }
 141
 142         ls_head();
 143         read_tree_recursive(tree, "", 0, 1, NULL, ls_item);
 144         ls_tail();
 145 }
 146
 147
 148 static int walk_tree(const unsigned char *sha1, const char *base, int baselen,
 149                      const char *pathname, unsigned mode, int stage)
 150 {
 151         static int state;
 152         static char buffer[PATH_MAX];
 153         char *url;
 154
 155         if (state == 0) {
 156                 memcpy(buffer, base, baselen);
 157                 strcpy(buffer+baselen, pathname);
 158                 url = cgit_pageurl(ctx.qry.repo, "tree",
 159                                    fmt("h=%s&amp;path=%s", curr_rev, buffer));
 160                 html("/");
 161                 cgit_tree_link(xstrdup(pathname), NULL, NULL, ctx.qry.head,
 162                                curr_rev, buffer);
 163
 164                 if (strcmp(match_path, buffer))
 165                         return READ_TREE_RECURSIVE;
 166
 167                 if (S_ISDIR(mode)) {
 168                         state = 1;
 169                         ls_head();
 170                         return READ_TREE_RECURSIVE;
 171                 } else {
 172                         print_object(sha1, buffer);
 173                         return 0;
 174                 }
 175         }
 176         ls_item(sha1, base, baselen, pathname, mode, stage);
 177         return 0;
 178 }
 179
 180
 181 /*
 182  * Show a tree or a blob
 183  *   rev:  the commit pointing at the root tree object
 184  *   path: path to tree or blob
 185  */
 186 void cgit_print_tree(const char *rev, char *path)
 187 {
 188         unsigned char sha1[20];
 189         struct commit *commit;
 190         const char *paths[] = {path, NULL};
 191
 192         if (!rev)
 193                 rev = ctx.qry.head;
 194
 195         curr_rev = xstrdup(rev);
 196         if (get_sha1(rev, sha1)) {
 197                 cgit_print_error(fmt("Invalid revision name: %s", rev));
 198                 return;
 199         }
 200         commit = lookup_commit_reference(sha1);
 201         if (!commit || parse_commit(commit)) {
 202                 cgit_print_error(fmt("Invalid commit reference: %s", rev));
 203                 return;
 204         }
 205
 206         html("path: <a href='");
 207         html_attr(cgit_pageurl(ctx.qry.repo, "tree", fmt("h=%s", rev)));
 208         html("'>root</a>");
 209
 210         if (path == NULL) {
 211                 ls_tree(commit->tree->object.sha1, NULL);
 212                 return;
 213         }
 214
 215         match_path = path;
 216         read_tree_recursive(commit->tree, NULL, 0, 0, paths, walk_tree);
 217         ls_tail();
 218 }