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         html("</td></tr>\n");
 113         free(name);
 114         return 0;
 115 }
 116
 117 static void ls_head()
 118 {
 119         html("<table summary='tree listing' class='list'>\n");
 120         html("<tr class='nohover'>");
 121         html("<th class='left'>Mode</th>");
 122         html("<th class='left'>Name</th>");
 123         html("<th class='right'>Size</th>");
 124         html("<th/>");
 125         html("</tr>\n");
 126         header = 1;
 127 }
 128
 129 static void ls_tail()
 130 {
 131         if (!header)
 132                 return;
 133         html("</table>\n");
 134         header = 0;
 135 }
 136
 137 static void ls_tree(const unsigned char *sha1, char *path)
 138 {
 139         struct tree *tree;
 140
 141         tree = parse_tree_indirect(sha1);
 142         if (!tree) {
 143                 cgit_print_error(fmt("Not a tree object: %s",
 144                                      sha1_to_hex(sha1)));
 145                 return;
 146         }
 147
 148         ls_head();
 149         read_tree_recursive(tree, "", 0, 1, NULL, ls_item, NULL);
 150         ls_tail();
 151 }
 152
 153
 154 static int walk_tree(const unsigned char *sha1, const char *base, int baselen,
 155                      const char *pathname, unsigned mode, int stage,
 156                      void *cbdata)
 157 {
 158         static int state;
 159         static char buffer[PATH_MAX];
 160         char *url;
 161
 162         if (state == 0) {
 163                 memcpy(buffer, base, baselen);
 164                 strcpy(buffer+baselen, pathname);
 165                 url = cgit_pageurl(ctx.qry.repo, "tree",
 166                                    fmt("h=%s&amp;path=%s", curr_rev, buffer));
 167                 html("/");
 168                 cgit_tree_link(xstrdup(pathname), NULL, NULL, ctx.qry.head,
 169                                curr_rev, buffer);
 170
 171                 if (strcmp(match_path, buffer))
 172                         return READ_TREE_RECURSIVE;
 173
 174                 if (S_ISDIR(mode)) {
 175                         state = 1;
 176                         ls_head();
 177                         return READ_TREE_RECURSIVE;
 178                 } else {
 179                         print_object(sha1, buffer);
 180                         return 0;
 181                 }
 182         }
 183         ls_item(sha1, base, baselen, pathname, mode, stage, NULL);
 184         return 0;
 185 }
 186
 187
 188 /*
 189  * Show a tree or a blob
 190  *   rev:  the commit pointing at the root tree object
 191  *   path: path to tree or blob
 192  */
 193 void cgit_print_tree(const char *rev, char *path)
 194 {
 195         unsigned char sha1[20];
 196         struct commit *commit;
 197         const char *paths[] = {path, NULL};
 198
 199         if (!rev)
 200                 rev = ctx.qry.head;
 201
 202         curr_rev = xstrdup(rev);
 203         if (get_sha1(rev, sha1)) {
 204                 cgit_print_error(fmt("Invalid revision name: %s", rev));
 205                 return;
 206         }
 207         commit = lookup_commit_reference(sha1);
 208         if (!commit || parse_commit(commit)) {
 209                 cgit_print_error(fmt("Invalid commit reference: %s", rev));
 210                 return;
 211         }
 212
 213         html("path: <a href='");
 214         html_attr(cgit_pageurl(ctx.qry.repo, "tree", fmt("h=%s", rev)));
 215         html("'>root</a>");
 216
 217         if (path == NULL) {
 218                 ls_tree(commit->tree->object.sha1, NULL);
 219                 return;
 220         }
 221
 222         match_path = path;
 223         read_tree_recursive(commit->tree, NULL, 0, 0, paths, walk_tree, NULL);
 224         ls_tail();
 225 }