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, idx;
  22         const char *numberfmt = "<a class='no' id='n%1$d' name='n%1$d' href='#n%1$d'>%1$d</a>\n";
  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\n", sha1_to_hex(sha1));
  42
  43         html("<table summary='blob content' class='blob'>\n");
  44         html("<tr>\n");
  45
  46         html("<td class='linenumbers'><pre>");
  47         idx = 0;
  48         lineno = 0;
  49         htmlf(numberfmt, ++lineno);
  50         while(idx < size - 1) { // skip absolute last newline
  51                 if (buf[idx] == '\n') {
  52                         htmlf(numberfmt, ++lineno);
  53                 }
  54                 idx++;
  55         }
  56         html("</pre></td>\n");
  57
  58         html("<td class='lines'><pre><code>");
  59         html_txt(buf);
  60         html("</code></pre></td>\n");
  61
  62         html("</tr>\n");
  63         html("</table>\n");
  64 }
  65
  66
  67 static int ls_item(const unsigned char *sha1, const char *base, int baselen,
  68                    const char *pathname, unsigned int mode, int stage,
  69                    void *cbdata)
  70 {
  71         char *name;
  72         char *fullpath;
  73         enum object_type type;
  74         unsigned long size = 0;
  75
  76         name = xstrdup(pathname);
  77         fullpath = fmt("%s%s%s", ctx.qry.path ? ctx.qry.path : "",
  78                        ctx.qry.path ? "/" : "", name);
  79
  80         if (!S_ISGITLINK(mode)) {
  81                 type = sha1_object_info(sha1, &size);
  82                 if (type == OBJ_BAD) {
  83                         htmlf("<tr><td colspan='3'>Bad object: %s %s</td></tr>",
  84                               name,
  85                               sha1_to_hex(sha1));
  86                         return 0;
  87                 }
  88         }
  89
  90         html("<tr><td class='ls-mode'>");
  91         cgit_print_filemode(mode);
  92         html("</td><td>");
  93         if (S_ISGITLINK(mode)) {
  94                 htmlf("<a class='ls-mod' href='");
  95                 html_attr(fmt(ctx.repo->module_link,
  96                               name,
  97                               sha1_to_hex(sha1)));
  98                 html("'>");
  99                 html_txt(name);
 100                 html("</a>");
 101         } else if (S_ISDIR(mode)) {
 102                 cgit_tree_link(name, NULL, "ls-dir", ctx.qry.head,
 103                                curr_rev, fullpath);
 104         } else {
 105                 cgit_tree_link(name, NULL, "ls-blob", ctx.qry.head,
 106                                curr_rev, fullpath);
 107         }
 108         htmlf("</td><td class='ls-size'>%li</td>", size);
 109
 110         html("<td>");
 111         cgit_log_link("log", NULL, "button", ctx.qry.head, curr_rev,
 112                       fullpath, 0, NULL, NULL, ctx.qry.showmsg);
 113         if (ctx.repo->max_stats)
 114                 cgit_stats_link("stats", NULL, "button", ctx.qry.head,
 115                                 fullpath);
 116         html("</td></tr>\n");
 117         free(name);
 118         return 0;
 119 }
 120
 121 static void ls_head()
 122 {
 123         html("<table summary='tree listing' class='list'>\n");
 124         html("<tr class='nohover'>");
 125         html("<th class='left'>Mode</th>");
 126         html("<th class='left'>Name</th>");
 127         html("<th class='right'>Size</th>");
 128         html("<th/>");
 129         html("</tr>\n");
 130         header = 1;
 131 }
 132
 133 static void ls_tail()
 134 {
 135         if (!header)
 136                 return;
 137         html("</table>\n");
 138         header = 0;
 139 }
 140
 141 static void ls_tree(const unsigned char *sha1, char *path)
 142 {
 143         struct tree *tree;
 144
 145         tree = parse_tree_indirect(sha1);
 146         if (!tree) {
 147                 cgit_print_error(fmt("Not a tree object: %s",
 148                                      sha1_to_hex(sha1)));
 149                 return;
 150         }
 151
 152         ls_head();
 153         read_tree_recursive(tree, "", 0, 1, NULL, ls_item, NULL);
 154         ls_tail();
 155 }
 156
 157
 158 static int walk_tree(const unsigned char *sha1, const char *base, int baselen,
 159                      const char *pathname, unsigned mode, int stage,
 160                      void *cbdata)
 161 {
 162         static int state;
 163         static char buffer[PATH_MAX];
 164         char *url;
 165
 166         if (state == 0) {
 167                 memcpy(buffer, base, baselen);
 168                 strcpy(buffer+baselen, pathname);
 169                 url = cgit_pageurl(ctx.qry.repo, "tree",
 170                                    fmt("h=%s&amp;path=%s", curr_rev, buffer));
 171                 html("/");
 172                 cgit_tree_link(xstrdup(pathname), NULL, NULL, ctx.qry.head,
 173                                curr_rev, buffer);
 174
 175                 if (strcmp(match_path, buffer))
 176                         return READ_TREE_RECURSIVE;
 177
 178                 if (S_ISDIR(mode)) {
 179                         state = 1;
 180                         ls_head();
 181                         return READ_TREE_RECURSIVE;
 182                 } else {
 183                         print_object(sha1, buffer);
 184                         return 0;
 185                 }
 186         }
 187         ls_item(sha1, base, baselen, pathname, mode, stage, NULL);
 188         return 0;
 189 }
 190
 191
 192 /*
 193  * Show a tree or a blob
 194  *   rev:  the commit pointing at the root tree object
 195  *   path: path to tree or blob
 196  */
 197 void cgit_print_tree(const char *rev, char *path)
 198 {
 199         unsigned char sha1[20];
 200         struct commit *commit;
 201         const char *paths[] = {path, NULL};
 202
 203         if (!rev)
 204                 rev = ctx.qry.head;
 205
 206         curr_rev = xstrdup(rev);
 207         if (get_sha1(rev, sha1)) {
 208                 cgit_print_error(fmt("Invalid revision name: %s", rev));
 209                 return;
 210         }
 211         commit = lookup_commit_reference(sha1);
 212         if (!commit || parse_commit(commit)) {
 213                 cgit_print_error(fmt("Invalid commit reference: %s", rev));
 214                 return;
 215         }
 216
 217         html("path: <a href='");
 218         html_attr(cgit_pageurl(ctx.qry.repo, "tree", fmt("h=%s", rev)));
 219         html("'>root</a>");
 220
 221         if (path == NULL) {
 222                 ls_tree(commit->tree->object.sha1, NULL);
 223                 return;
 224         }
 225
 226         match_path = path;
 227         read_tree_recursive(commit->tree, NULL, 0, 0, paths, walk_tree, NULL);
 228         ls_tail();
 229 }