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