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(" (");
  39         cgit_plain_link("plain", NULL, NULL, ctx.qry.head,
  40                         curr_rev, path);
  41         htmlf(")<br/>blob: %s", 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                    void *cbdata)
  67 {
  68         char *name;
  69         char *fullpath;
  70         enum object_type type;
  71         unsigned long size = 0;
  72
  73         name = xstrdup(pathname);
  74         fullpath = fmt("%s%s%s", ctx.qry.path ? ctx.qry.path : "",
  75                        ctx.qry.path ? "/" : "", name);
  76
  77         if (!S_ISGITLINK(mode)) {
  78                 type = sha1_object_info(sha1, &size);
  79                 if (type == OBJ_BAD) {
  80                         htmlf("<tr><td colspan='3'>Bad object: %s %s</td></tr>",
  81                               name,
  82                               sha1_to_hex(sha1));
  83                         return 0;
  84                 }
  85         }
  86
  87         html("<tr><td class='ls-mode'>");
  88         cgit_print_filemode(mode);
  89         html("</td><td>");
  90         if (S_ISGITLINK(mode)) {
  91                 htmlf("<a class='ls-mod' href='");
  92                 html_attr(fmt(ctx.repo->module_link,
  93                               name,
  94                               sha1_to_hex(sha1)));
  95                 html("'>");
  96                 html_txt(name);
  97                 html("</a>");
  98         } else if (S_ISDIR(mode)) {
  99                 cgit_tree_link(name, NULL, "ls-dir", ctx.qry.head,
 100                                curr_rev, fullpath);
 101         } else {
 102                 cgit_tree_link(name, NULL, "ls-blob", ctx.qry.head,
 103                                curr_rev, fullpath);
 104         }
 105         htmlf("</td><td class='ls-size'>%li</td>", size);
 106
 107         html("<td>");
 108         cgit_log_link("log", NULL, "button", ctx.qry.head, curr_rev,
 109                       fullpath, 0, NULL, NULL, ctx.qry.showmsg);
 110         html("</td></tr>\n");
 111         free(name);
 112         return 0;
 113 }
 114
 115 static void ls_head()
 116 {
 117         html("<table summary='tree listing' class='list'>\n");
 118         html("<tr class='nohover'>");
 119         html("<th class='left'>Mode</th>");
 120         html("<th class='left'>Name</th>");
 121         html("<th class='right'>Size</th>");
 122         html("<th/>");
 123         html("</tr>\n");
 124         header = 1;
 125 }
 126
 127 static void ls_tail()
 128 {
 129         if (!header)
 130                 return;
 131         html("</table>\n");
 132         header = 0;
 133 }
 134
 135 static void ls_tree(const unsigned char *sha1, char *path)
 136 {
 137         struct tree *tree;
 138
 139         tree = parse_tree_indirect(sha1);
 140         if (!tree) {
 141                 cgit_print_error(fmt("Not a tree object: %s",
 142                                      sha1_to_hex(sha1)));
 143                 return;
 144         }
 145
 146         ls_head();
 147         read_tree_recursive(tree, "", 0, 1, NULL, ls_item, NULL);
 148         ls_tail();
 149 }
 150
 151
 152 static int walk_tree(const unsigned char *sha1, const char *base, int baselen,
 153                      const char *pathname, unsigned mode, int stage,
 154                      void *cbdata)
 155 {
 156         static int state;
 157         static char buffer[PATH_MAX];
 158         char *url;
 159
 160         if (state == 0) {
 161                 memcpy(buffer, base, baselen);
 162                 strcpy(buffer+baselen, pathname);
 163                 url = cgit_pageurl(ctx.qry.repo, "tree",
 164                                    fmt("h=%s&amp;path=%s", curr_rev, buffer));
 165                 html("/");
 166                 cgit_tree_link(xstrdup(pathname), NULL, NULL, ctx.qry.head,
 167                                curr_rev, buffer);
 168
 169                 if (strcmp(match_path, buffer))
 170                         return READ_TREE_RECURSIVE;
 171
 172                 if (S_ISDIR(mode)) {
 173                         state = 1;
 174                         ls_head();
 175                         return READ_TREE_RECURSIVE;
 176                 } else {
 177                         print_object(sha1, buffer);
 178                         return 0;
 179                 }
 180         }
 181         ls_item(sha1, base, baselen, pathname, mode, stage, NULL);
 182         return 0;
 183 }
 184
 185
 186 /*
 187  * Show a tree or a blob
 188  *   rev:  the commit pointing at the root tree object
 189  *   path: path to tree or blob
 190  */
 191 void cgit_print_tree(const char *rev, char *path)
 192 {
 193         unsigned char sha1[20];
 194         struct commit *commit;
 195         const char *paths[] = {path, NULL};
 196
 197         if (!rev)
 198                 rev = ctx.qry.head;
 199
 200         curr_rev = xstrdup(rev);
 201         if (get_sha1(rev, sha1)) {
 202                 cgit_print_error(fmt("Invalid revision name: %s", rev));
 203                 return;
 204         }
 205         commit = lookup_commit_reference(sha1);
 206         if (!commit || parse_commit(commit)) {
 207                 cgit_print_error(fmt("Invalid commit reference: %s", rev));
 208                 return;
 209         }
 210
 211         html("path: <a href='");
 212         html_attr(cgit_pageurl(ctx.qry.repo, "tree", fmt("h=%s", rev)));
 213         html("'>root</a>");
 214
 215         if (path == NULL) {
 216                 ls_tree(commit->tree->object.sha1, NULL);
 217                 return;
 218         }
 219
 220         match_path = path;
 221         read_tree_recursive(commit->tree, NULL, 0, 0, paths, walk_tree, NULL);
 222         ls_tail();
 223 }