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",
  40                                fmt("id=%s&path=%s", sha1_to_hex(sha1), path)));
  41         htmlf("'>%s</a>",sha1_to_hex(sha1));
  42
  43         html("<table summary='blob content' class='blob'>\n");
  44         idx = 0;
  45         start = 0;
  46         lineno = 0;
  47         while(idx < size) {
  48                 if (buf[idx] == '\n') {
  49                         buf[idx] = '\0';
  50                         htmlf(linefmt, ++lineno);
  51                         html_txt(buf + start);
  52                         html("</td></tr>\n");
  53                         start = idx + 1;
  54                 }
  55                 idx++;
  56         }
  57         htmlf(linefmt, ++lineno);
  58         html_txt(buf + start);
  59         html("</td></tr>\n");
  60         html("</table>\n");
  61 }
  62
  63
  64 static int ls_item(const unsigned char *sha1, const char *base, int baselen,
  65                    const char *pathname, unsigned int mode, int stage)
  66 {
  67         char *name;
  68         char *fullpath;
  69         enum object_type type;
  70         unsigned long size = 0;
  71
  72         name = xstrdup(pathname);
  73         fullpath = fmt("%s%s%s", ctx.qry.path ? ctx.qry.path : "",
  74                        ctx.qry.path ? "/" : "", name);
  75
  76         type = sha1_object_info(sha1, &size);
  77         if (type == OBJ_BAD && !S_ISGITLINK(mode)) {
  78                 htmlf("<tr><td colspan='3'>Bad object: %s %s</td></tr>",
  79                       name,
  80                       sha1_to_hex(sha1));
  81                 return 0;
  82         }
  83
  84         html("<tr><td class='ls-mode'>");
  85         cgit_print_filemode(mode);
  86         html("</td><td>");
  87         if (S_ISGITLINK(mode)) {
  88                 htmlf("<a class='ls-mod' href='");
  89                 html_attr(fmt(ctx.repo->module_link,
  90                               name,
  91                               sha1_to_hex(sha1)));
  92                 html("'>");
  93                 html_txt(name);
  94                 html("</a>");
  95         } else if (S_ISDIR(mode)) {
  96                 cgit_tree_link(name, NULL, "ls-dir", ctx.qry.head,
  97                                curr_rev, fullpath);
  98         } else {
  99                 cgit_tree_link(name, NULL, "ls-blob", ctx.qry.head,
 100                                curr_rev, fullpath);
 101         }
 102         htmlf("</td><td class='ls-size'>%li</td>", size);
 103
 104         html("<td>");
 105         cgit_log_link("log", NULL, "button", ctx.qry.head, curr_rev,
 106                       fullpath, 0, NULL, NULL);
 107         html("</td></tr>\n");
 108         free(name);
 109         return 0;
 110 }
 111
 112 static void ls_head()
 113 {
 114         html("<table summary='tree listing' class='list'>\n");
 115         html("<tr class='nohover'>");
 116         html("<th class='left'>Mode</th>");
 117         html("<th class='left'>Name</th>");
 118         html("<th class='right'>Size</th>");
 119         html("<th/>");
 120         html("</tr>\n");
 121         header = 1;
 122 }
 123
 124 static void ls_tail()
 125 {
 126         if (!header)
 127                 return;
 128         html("</table>\n");
 129         header = 0;
 130 }
 131
 132 static void ls_tree(const unsigned char *sha1, char *path)
 133 {
 134         struct tree *tree;
 135
 136         tree = parse_tree_indirect(sha1);
 137         if (!tree) {
 138                 cgit_print_error(fmt("Not a tree object: %s",
 139                                      sha1_to_hex(sha1)));
 140                 return;
 141         }
 142
 143         ls_head();
 144         read_tree_recursive(tree, "", 0, 1, NULL, ls_item);
 145         ls_tail();
 146 }
 147
 148
 149 static int walk_tree(const unsigned char *sha1, const char *base, int baselen,
 150                      const char *pathname, unsigned mode, int stage)
 151 {
 152         static int state;
 153         static char buffer[PATH_MAX];
 154         char *url;
 155
 156         if (state == 0) {
 157                 memcpy(buffer, base, baselen);
 158                 strcpy(buffer+baselen, pathname);
 159                 url = cgit_pageurl(ctx.qry.repo, "tree",
 160                                    fmt("h=%s&amp;path=%s", curr_rev, buffer));
 161                 html("/");
 162                 cgit_tree_link(xstrdup(pathname), NULL, NULL, ctx.qry.head,
 163                                curr_rev, buffer);
 164
 165                 if (strcmp(match_path, buffer))
 166                         return READ_TREE_RECURSIVE;
 167
 168                 if (S_ISDIR(mode)) {
 169                         state = 1;
 170                         ls_head();
 171                         return READ_TREE_RECURSIVE;
 172                 } else {
 173                         print_object(sha1, buffer);
 174                         return 0;
 175                 }
 176         }
 177         ls_item(sha1, base, baselen, pathname, mode, stage);
 178         return 0;
 179 }
 180
 181
 182 /*
 183  * Show a tree or a blob
 184  *   rev:  the commit pointing at the root tree object
 185  *   path: path to tree or blob
 186  */
 187 void cgit_print_tree(const char *rev, char *path)
 188 {
 189         unsigned char sha1[20];
 190         struct commit *commit;
 191         const char *paths[] = {path, NULL};
 192
 193         if (!rev)
 194                 rev = ctx.qry.head;
 195
 196         curr_rev = xstrdup(rev);
 197         if (get_sha1(rev, sha1)) {
 198                 cgit_print_error(fmt("Invalid revision name: %s", rev));
 199                 return;
 200         }
 201         commit = lookup_commit_reference(sha1);
 202         if (!commit || parse_commit(commit)) {
 203                 cgit_print_error(fmt("Invalid commit reference: %s", rev));
 204                 return;
 205         }
 206
 207         html("path: <a href='");
 208         html_attr(cgit_pageurl(ctx.qry.repo, "tree", fmt("h=%s", rev)));
 209         html("'>root</a>");
 210
 211         if (path == NULL) {
 212                 ls_tree(commit->tree->object.sha1, NULL);
 213                 return;
 214         }
 215
 216         match_path = path;
 217         read_tree_recursive(commit->tree, NULL, 0, 0, paths, walk_tree);
 218         ls_tail();
 219 }