navymail.c

   1 /*
   2  * Navymail - a program to store and synchronize mail in Git.
   3  * Copyright (C) 2011 Kirill Smelkov <kirr@navytux.spb.ru>
   4  *
   5  * This program is free software: you can Use, Study, Modify and Redistribute it
   6  * under the terms of the GNU General Public License version 2 as published by
   7  * the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17  *
  18  * See COPYING file for full License terms.
  19  *
  20  * --------
  21  *
  22  * Main driver for executing commands.
  23  *
  24  */
  25
  26 #include "builtin.h"
  27 #include "cache.h"
  28 #include "exec_cmd.h"
  29 #include "help.h"
  30 #include "git-compat-util.h"
  31 #include "run-command.h"
  32
  33 #include "navymail/navymail.h"
  34 #include "navymail/compat/progexe.h"
  35
  36
  37 /* TODO move out-of-here + autogenerate. XXX dup in configure.ac */
  38 const char navymail_version_string[] = "0.001";
  39
  40
  41
  42 /* Setup libexec and other paths for navymail at runtime */
  43 static const char *prefix, *man_path, *info_path, *html_path;
  44
  45 const char *navymail_prefix()           { return prefix; }
  46 const char *navymail_man_path()         { return man_path; }
  47 const char *navymail_info_path()        { return info_path; }
  48 const char *navymail_html_path()        { return html_path; }
  49
  50 void navymail_setup_path()
  51 {
  52         char *exe;
  53         const char *exec_path;
  54
  55         /*
  56          * This simulates runtime prefix.
  57          */
  58         exe = xstrdup(xprogexe());
  59
  60
  61         /*
  62          * TODO also support installed case
  63          */
  64         prefix = xstrdup(dirname(exe));         /* '/path/to/navymail'  -> '/path/to' */
  65
  66
  67         /* NOTE setting this early, still allows exec-path to be overriden via
  68          * --exec-path */
  69         exec_path = xstrdup(mkpath("%s/cmd", prefix));
  70         if (!getenv(NAVYMAIL_EXEC_PATH_ENV))
  71                 navymail_set_argv_exec_path(exec_path);
  72
  73         /* XXX man,info,html are stubs - i.e. they are not used atm */
  74         man_path  = xstrdup(mkpath("%s/Documentation/man", prefix));
  75         info_path = xstrdup(mkpath("%s/Documentation/info", prefix));
  76         html_path = xstrdup(mkpath("%s/Documentation/html", prefix));
  77
  78         free(exe);
  79 }
  80
  81
  82
  83 const char *setup_navymail_directory_gently(int *non_navymail)
  84 {
  85         const char *navymail_dir;
  86
  87         /* require navymail-dir to be explicitly set */
  88         navymail_dir = getenv(NAVYMAIL_DIR_ENVIRONMENT);
  89         if (!navymail_dir) {
  90                 if (non_navymail)
  91                         *non_navymail = 1;
  92                 return NULL;
  93         }
  94
  95
  96         /* propagate navymail-dir to git-dir */
  97         setenv(GIT_DIR_ENVIRONMENT, navymail_dir, 1);
  98
  99         /* always --bare */
 100         is_bare_repository_cfg = 1;
 101
 102         return setup_git_directory_gently(non_navymail);
 103 }
 104
 105
 106 const char *setup_navymail_directory()
 107 {
 108         const char *prefix;
 109         int non_navymail;
 110
 111         prefix = setup_navymail_directory_gently(&non_navymail);
 112         if (non_navymail) {
 113                 if (!getenv(NAVYMAIL_DIR_ENVIRONMENT))
 114                         die("What is your navymail-dir?");
 115                 else
 116                         die("Repo setup failed");
 117         }
 118
 119         return prefix;
 120 }
 121
 122
 123
 124 /* the rest of the code comes from tweaked git/git.c */
 125 #include "fromgit/git.c"