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         if (start < idx) {
  58                 htmlf(linefmt, ++lineno);
  59                 html_txt(buf + start);
  60         }
  61         html("</td></tr>\n");
  62         html("</table>\n");
  63 }
  64
  65
  66 static int ls_item(const unsigned char *sha1, const char *base, int baselen,
  67                    const char *pathname, unsigned int mode, int stage,
  68                    void *cbdata)
  69 {
  70         char *name;
  71         char *fullpath;
  72         enum object_type type;
  73         unsigned long size = 0;
  74
  75         name = xstrdup(pathname);
  76         fullpath = fmt("%s%s%s", ctx.qry.path ? ctx.qry.path : "",
  77                        ctx.qry.path ? "/" : "", name);
  78
  79         if (!S_ISGITLINK(mode)) {
  80                 type = sha1_object_info(sha1, &size);
  81                 if (type == OBJ_BAD) {
  82                         htmlf("<tr><td colspan='3'>Bad object: %s %s</td></tr>",
  83                               name,
  84                               sha1_to_hex(sha1));
  85                         return 0;
  86                 }
  87         }
  88
  89         html("<tr><td class='ls-mode'>");
  90         cgit_print_filemode(mode);
  91         html("</td><td>");
  92         if (S_ISGITLINK(mode)) {
  93                 htmlf("<a class='ls-mod' href='");
  94                 html_attr(fmt(ctx.repo->module_link,
  95                               name,
  96                               sha1_to_hex(sha1)));
  97                 html("'>");
  98                 html_txt(name);
  99                 html("</a>");
 100         } else if (S_ISDIR(mode)) {
 101                 cgit_tree_link(name, NULL, "ls-dir", ctx.qry.head,
 102                                curr_rev, fullpath);
 103         } else {
 104                 cgit_tree_link(name, NULL, "ls-blob", ctx.qry.head,
 105                                curr_rev, fullpath);
 106         }
 107         htmlf("</td><td class='ls-size'>%li</td>", size);
 108
 109         html("<td>");
 110         cgit_log_link("log", NULL, "button", ctx.qry.head, curr_rev,
 111                       fullpath, 0, NULL, NULL, ctx.qry.showmsg);
 112         if (ctx.repo->max_stats)
 113                 cgit_stats_link("stats", NULL, "button", ctx.qry.head,
 114                                 fullpath);
 115         html("</td></tr>\n");
 116         free(name);
 117         return 0;
 118 }
 119
 120 static void ls_head()
 121 {
 122         html("<table summary='tree listing' class='list'>\n");
 123         html("<tr class='nohover'>");
 124         html("<th class='left'>Mode</th>");
 125         html("<th class='left'>Name</th>");
 126         html("<th class='right'>Size</th>");
 127         html("<th/>");
 128         html("</tr>\n");
 129         header = 1;
 130 }
 131
 132 static void ls_tail()
 133 {
 134         if (!header)
 135                 return;
 136         html("</table>\n");
 137         header = 0;
 138 }
 139
 140 static void ls_tree(const unsigned char *sha1, char *path)
 141 {
 142         struct tree *tree;
 143
 144         tree = parse_tree_indirect(sha1);
 145         if (!tree) {
 146                 cgit_print_error(fmt("Not a tree object: %s",
 147                                      sha1_to_hex(sha1)));
 148                 return;
 149         }
 150
 151         ls_head();
 152         read_tree_recursive(tree, "", 0, 1, NULL, ls_item, NULL);
 153         ls_tail();
 154 }
 155
 156
 157 static int walk_tree(const unsigned char *sha1, const char *base, int baselen,
 158                      const char *pathname, unsigned mode, int stage,
 159                      void *cbdata)
 160 {
 161         static int state;
 162         static char buffer[PATH_MAX];
 163         char *url;
 164
 165         if (state == 0) {
 166                 memcpy(buffer, base, baselen);
 167                 strcpy(buffer+baselen, pathname);
 168                 url = cgit_pageurl(ctx.qry.repo, "tree",
 169                                    fmt("h=%s&amp;path=%s", curr_rev, buffer));
 170                 html("/");
 171                 cgit_tree_link(xstrdup(pathname), NULL, NULL, ctx.qry.head,
 172                                curr_rev, buffer);
 173
 174                 if (strcmp(match_path, buffer))
 175                         return READ_TREE_RECURSIVE;
 176
 177                 if (S_ISDIR(mode)) {
 178                         state = 1;
 179                         ls_head();
 180                         return READ_TREE_RECURSIVE;
 181                 } else {
 182                         print_object(sha1, buffer);
 183                         return 0;
 184                 }
 185         }
 186         ls_item(sha1, base, baselen, pathname, mode, stage, NULL);
 187         return 0;
 188 }
 189
 190
 191 /*
 192  * Show a tree or a blob
 193  *   rev:  the commit pointing at the root tree object
 194  *   path: path to tree or blob
 195  */
 196 void cgit_print_tree(const char *rev, char *path)
 197 {
 198         unsigned char sha1[20];
 199         struct commit *commit;
 200         const char *paths[] = {path, NULL};
 201
 202         if (!rev)
 203                 rev = ctx.qry.head;
 204
 205         curr_rev = xstrdup(rev);
 206         if (get_sha1(rev, sha1)) {
 207                 cgit_print_error(fmt("Invalid revision name: %s", rev));
 208                 return;
 209         }
 210         commit = lookup_commit_reference(sha1);
 211         if (!commit || parse_commit(commit)) {
 212                 cgit_print_error(fmt("Invalid commit reference: %s", rev));
 213                 return;
 214         }
 215
 216         html("path: <a href='");
 217         html_attr(cgit_pageurl(ctx.qry.repo, "tree", fmt("h=%s", rev)));
 218         html("'>root</a>");
 219
 220         if (path == NULL) {
 221                 ls_tree(commit->tree->object.sha1, NULL);
 222                 return;
 223         }
 224
 225         match_path = path;
 226         read_tree_recursive(commit->tree, NULL, 0, 0, paths, walk_tree, NULL);
 227         ls_tail();
 228 }