gitweb.ps.run Git - ps-cgit/blob - 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 <ctype.h>
  10 #include "cgit.h"
  11 #include "ui-tree.h"
  12 #include "html.h"
  13 #include "ui-shared.h"
  14
  15 struct walk_tree_context {
  16         char *curr_rev;
  17         char *match_path;
  18         int state;
  19 };
  20
  21 static void print_text_buffer(const char *name, char *buf, unsigned long size)
  22 {
  23         unsigned long lineno, idx;
  24         const char *numberfmt =
  25                 "<a class='no' id='n%1$d' name='n%1$d' href='#n%1$d'>%1$d</a>\n";
  26
  27         html("<table summary='blob content' class='blob'>\n");
  28
  29         if (ctx.cfg.enable_tree_linenumbers) {
  30                 html("<tr><td class='linenumbers'><pre>");
  31                 idx = 0;
  32                 lineno = 0;
  33
  34                 if (size) {
  35                         htmlf(numberfmt, ++lineno);
  36                         while (idx < size - 1) { // skip absolute last newline
  37                                 if (buf[idx] == '\n')
  38                                         htmlf(numberfmt, ++lineno);
  39                                 idx++;
  40                         }
  41                 }
  42                 html("</pre></td>\n");
  43         }
  44         else {
  45                 html("<tr>\n");
  46         }
  47
  48         if (ctx.repo->source_filter) {
  49                 html("<td class='lines'><pre><code>");
  50                 ctx.repo->source_filter->argv[1] = xstrdup(name);
  51                 cgit_open_filter(ctx.repo->source_filter);
  52                 html_raw(buf, size);
  53                 cgit_close_filter(ctx.repo->source_filter);
  54                 free(ctx.repo->source_filter->argv[1]);
  55                 ctx.repo->source_filter->argv[1] = NULL;
  56                 html("</code></pre></td></tr></table>\n");
  57                 return;
  58         }
  59
  60         html("<td class='lines'><pre><code>");
  61         html_txt(buf);
  62         html("</code></pre></td></tr></table>\n");
  63 }
  64
  65 #define ROWLEN 32
  66
  67 static void print_binary_buffer(char *buf, unsigned long size)
  68 {
  69         unsigned long ofs, idx;
  70         static char ascii[ROWLEN + 1];
  71
  72         html("<table summary='blob content' class='bin-blob'>\n");
  73         html("<tr><th>ofs</th><th>hex dump</th><th>ascii</th></tr>");
  74         for (ofs = 0; ofs < size; ofs += ROWLEN, buf += ROWLEN) {
  75                 htmlf("<tr><td class='right'>%04lx</td><td class='hex'>", ofs);
  76                 for (idx = 0; idx < ROWLEN && ofs + idx < size; idx++)
  77                         htmlf("%*s%02x",
  78                               idx == 16 ? 4 : 1, "",
  79                               buf[idx] & 0xff);
  80                 html(" </td><td class='hex'>");
  81                 for (idx = 0; idx < ROWLEN && ofs + idx < size; idx++)
  82                         ascii[idx] = isgraph(buf[idx]) ? buf[idx] : '.';
  83                 ascii[idx] = '\0';
  84                 html_txt(ascii);
  85                 html("</td></tr>\n");
  86         }
  87         html("</table>\n");
  88 }
  89
  90 static void print_object(const unsigned char *sha1, char *path, const char *basename, const char *rev)
  91 {
  92         enum object_type type;
  93         char *buf;
  94         unsigned long size;
  95
  96         type = sha1_object_info(sha1, &size);
  97         if (type == OBJ_BAD) {
  98                 cgit_print_error(fmt("Bad object name: %s",
  99                                      sha1_to_hex(sha1)));
 100                 return;
 101         }
 102
 103         buf = read_sha1_file(sha1, &type, &size);
 104         if (!buf) {
 105                 cgit_print_error(fmt("Error reading object %s",
 106                                      sha1_to_hex(sha1)));
 107                 return;
 108         }
 109
 110         htmlf("blob: %s (", sha1_to_hex(sha1));
 111         cgit_plain_link("plain", NULL, NULL, ctx.qry.head,
 112                         rev, path);
 113         html(")\n");
 114
 115         if (ctx.cfg.max_blob_size && size / 1024 > ctx.cfg.max_blob_size) {
 116                 htmlf("<div class='error'>blob size (%ldKB) exceeds display size limit (%dKB).</div>",
 117                                 size / 1024, ctx.cfg.max_blob_size);
 118                 return;
 119         }
 120
 121         if (buffer_is_binary(buf, size))
 122                 print_binary_buffer(buf, size);
 123         else
 124                 print_text_buffer(basename, buf, size);
 125 }
 126
 127
 128 static int ls_item(const unsigned char *sha1, const char *base, int baselen,
 129                    const char *pathname, unsigned int mode, int stage,
 130                    void *cbdata)
 131 {
 132         struct walk_tree_context *walk_tree_ctx = cbdata;
 133         char *name;
 134         char *fullpath;
 135         char *class;
 136         enum object_type type;
 137         unsigned long size = 0;
 138
 139         name = xstrdup(pathname);
 140         fullpath = fmt("%s%s%s", ctx.qry.path ? ctx.qry.path : "",
 141                        ctx.qry.path ? "/" : "", name);
 142
 143         if (!S_ISGITLINK(mode)) {
 144                 type = sha1_object_info(sha1, &size);
 145                 if (type == OBJ_BAD) {
 146                         htmlf("<tr><td colspan='3'>Bad object: %s %s</td></tr>",
 147                               name,
 148                               sha1_to_hex(sha1));
 149                         return 0;
 150                 }
 151         }
 152
 153         html("<tr><td class='ls-mode'>");
 154         cgit_print_filemode(mode);
 155         html("</td><td>");
 156         if (S_ISGITLINK(mode)) {
 157                 cgit_submodule_link("ls-mod", fullpath, sha1_to_hex(sha1));
 158         } else if (S_ISDIR(mode)) {
 159                 cgit_tree_link(name, NULL, "ls-dir", ctx.qry.head,
 160                                walk_tree_ctx->curr_rev, fullpath);
 161         } else {
 162                 class = strrchr(name, '.');
 163                 if (class != NULL) {
 164                         class = fmt("ls-blob %s", class + 1);
 165                 } else
 166                         class = "ls-blob";
 167                 cgit_tree_link(name, NULL, class, ctx.qry.head,
 168                                walk_tree_ctx->curr_rev, fullpath);
 169         }
 170         htmlf("</td><td class='ls-size'>%li</td>", size);
 171
 172         html("<td>");
 173         cgit_log_link("log", NULL, "button", ctx.qry.head,
 174                       walk_tree_ctx->curr_rev, fullpath, 0, NULL, NULL,
 175                       ctx.qry.showmsg);
 176         if (ctx.repo->max_stats)
 177                 cgit_stats_link("stats", NULL, "button", ctx.qry.head,
 178                                 fullpath);
 179         if (!S_ISGITLINK(mode))
 180                 cgit_plain_link("plain", NULL, "button", ctx.qry.head,
 181                                 walk_tree_ctx->curr_rev, fullpath);
 182         html("</td></tr>\n");
 183         free(name);
 184         return 0;
 185 }
 186
 187 static void ls_head()
 188 {
 189         html("<table summary='tree listing' class='list'>\n");
 190         html("<tr class='nohover'>");
 191         html("<th class='left'>Mode</th>");
 192         html("<th class='left'>Name</th>");
 193         html("<th class='right'>Size</th>");
 194         html("<th/>");
 195         html("</tr>\n");
 196 }
 197
 198 static void ls_tail()
 199 {
 200         html("</table>\n");
 201 }
 202
 203 static void ls_tree(const unsigned char *sha1, char *path, struct walk_tree_context *walk_tree_ctx)
 204 {
 205         struct tree *tree;
 206         struct pathspec paths = {
 207                 .nr = 0
 208         };
 209
 210         tree = parse_tree_indirect(sha1);
 211         if (!tree) {
 212                 cgit_print_error(fmt("Not a tree object: %s",
 213                                      sha1_to_hex(sha1)));
 214                 return;
 215         }
 216
 217         ls_head();
 218         read_tree_recursive(tree, "", 0, 1, &paths, ls_item, walk_tree_ctx);
 219         ls_tail();
 220 }
 221
 222
 223 static int walk_tree(const unsigned char *sha1, const char *base, int baselen,
 224                      const char *pathname, unsigned mode, int stage,
 225                      void *cbdata)
 226 {
 227         struct walk_tree_context *walk_tree_ctx = cbdata;
 228         static char buffer[PATH_MAX];
 229
 230         if (walk_tree_ctx->state == 0) {
 231                 memcpy(buffer, base, baselen);
 232                 strcpy(buffer + baselen, pathname);
 233                 if (strcmp(walk_tree_ctx->match_path, buffer))
 234                         return READ_TREE_RECURSIVE;
 235
 236                 if (S_ISDIR(mode)) {
 237                         walk_tree_ctx->state = 1;
 238                         ls_head();
 239                         return READ_TREE_RECURSIVE;
 240                 } else {
 241                         print_object(sha1, buffer, pathname, walk_tree_ctx->curr_rev);
 242                         return 0;
 243                 }
 244         }
 245         ls_item(sha1, base, baselen, pathname, mode, stage, walk_tree_ctx);
 246         return 0;
 247 }
 248
 249
 250 /*
 251  * Show a tree or a blob
 252  *   rev:  the commit pointing at the root tree object
 253  *   path: path to tree or blob
 254  */
 255 void cgit_print_tree(const char *rev, char *path)
 256 {
 257         unsigned char sha1[20];
 258         struct commit *commit;
 259         struct pathspec_item path_items = {
 260                 .match = path,
 261                 .len = path ? strlen(path) : 0
 262         };
 263         struct pathspec paths = {
 264                 .nr = path ? 1 : 0,
 265                 .items = &path_items
 266         };
 267         struct walk_tree_context walk_tree_ctx = {
 268                 .match_path = path,
 269                 .state = 0
 270         };
 271
 272         if (!rev)
 273                 rev = ctx.qry.head;
 274
 275         if (get_sha1(rev, sha1)) {
 276                 cgit_print_error(fmt("Invalid revision name: %s", rev));
 277                 return;
 278         }
 279         commit = lookup_commit_reference(sha1);
 280         if (!commit || parse_commit(commit)) {
 281                 cgit_print_error(fmt("Invalid commit reference: %s", rev));
 282                 return;
 283         }
 284
 285         walk_tree_ctx.curr_rev = xstrdup(rev);
 286
 287         if (path == NULL) {
 288                 ls_tree(commit->tree->object.sha1, NULL, &walk_tree_ctx);
 289                 goto cleanup;
 290         }
 291
 292         read_tree_recursive(commit->tree, "", 0, 0, &paths, walk_tree, &walk_tree_ctx);
 293         if (walk_tree_ctx.state == 1)
 294                 ls_tail();
 295
 296 cleanup:
 297         free(walk_tree_ctx.curr_rev);
 298 }