Move febootstrap into src/ subdirectory.

[febootstrap.git] / src / febootstrap_pacman.ml

diff --git a/src/febootstrap_pacman.ml b/src/febootstrap_pacman.ml
new file mode 100644 (file)
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--- /dev/null
+++ b/src/febootstrap_pacman.ml
@@ -0,0 +1,131 @@
+(* febootstrap 3
+ * Copyright (C) 2009-2010 Red Hat Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *)
+
+(* ArchLinux support. *)
+
+open Unix
+open Printf
+
+open Febootstrap_package_handlers
+open Febootstrap_utils
+open Febootstrap_cmdline
+
+(* Create a temporary directory for use by all the functions in this file. *)
+let tmpdir = tmpdir ()
+
+let pacman_detect () =
+  file_exists "/etc/arch-release" &&
+    Config.pacman <> "no"
+
+let pacman_resolve_dependencies_and_download names =
+  let cmd =
+    sprintf "pactree -u %s | sort -u"
+      (String.concat " " (List.map Filename.quote names)) in
+  let pkgs = run_command_get_lines cmd in
+
+  (* Exclude packages matching [--exclude] regexps on the command line. *)
+  let pkgs =
+    List.filter (
+      fun name ->
+        not (List.exists (fun re -> Str.string_match re name 0) excludes)
+    ) pkgs in
+
+  (* Download the packages. I could use wget `pacman -Sp`, but this
+   * narrows the pacman -Sy window
+   *)
+  List.iter (
+    fun pkg ->
+      let cmd =
+        sprintf "umask 0000; cd %s && mkdir -p var/lib/pacman && fakeroot pacman -Syw --noconfirm --cachedir=$(pwd) --root=$(pwd) %s"
+        (Filename.quote tmpdir)
+        pkg in
+      if Sys.command cmd <> 0 then (
+          (* The package is not in the main repos, check the aur *)
+          let cmd =
+            sprintf "umask 0000; cd %s && wget http://aur.archlinux.org/packages/%s/%s.tar.gz && tar xf %s.tar.gz && cd %s && makepkg && mv %s-*.pkg.tar.xz %s"
+            (Filename.quote tmpdir)
+            pkg
+            pkg
+            pkg
+            pkg
+            pkg
+            (Filename.quote tmpdir) in
+          run_command cmd;
+        )
+  ) pkgs;
+
+  List.sort compare pkgs
+
+let pacman_list_files pkg =
+  debug "unpacking %s ..." pkg;
+
+  (* We actually need to extract the file in order to get the
+   * information about modes etc.
+   *)
+  let pkgdir = tmpdir // pkg ^ ".d" in
+  mkdir pkgdir 0o755;
+  let cmd =
+    sprintf "pacman -Q %s | awk '{print $2}'"
+      pkg in
+   let ver = List.hd (run_command_get_lines cmd) in
+   let cmd =
+     sprintf "umask 0000; fakeroot tar -xf %s-%s* -C %s"
+     (Filename.quote tmpdir // pkg ) ver (Filename.quote pkgdir) in
+   run_command cmd;
+
+  let cmd = sprintf "cd %s && find ." pkgdir in
+  let lines = run_command_get_lines cmd in
+
+  let files = List.map (
+    fun path ->
+      assert (path.[0] = '.');
+      (* No leading '.' *)
+      let path =
+       if path = "." then "/"
+       else String.sub path 1 (String.length path - 1) in
+
+      (* Find out what it is and get the canonical filename. *)
+      let statbuf = lstat (pkgdir // path) in
+      let is_dir = statbuf.st_kind = S_DIR in
+
+      (* No per-file metadata like in RPM, but we can synthesize it
+       * from the path.
+       *)
+      let config = statbuf.st_kind = S_REG && string_prefix "/etc/" path in
+
+      let mode = statbuf.st_perm in
+
+      (path, { ft_dir = is_dir; ft_config = config; ft_mode = mode;
+              ft_ghost = false; ft_size = statbuf.st_size })
+  ) lines in
+
+  files
+
+(* Easy because we already unpacked the archive above. *)
+let pacman_get_file_from_package pkg file =
+  tmpdir // pkg ^ ".d" // file
+
+let () =
+  let ph = {
+    ph_detect = pacman_detect;
+    ph_resolve_dependencies_and_download =
+      pacman_resolve_dependencies_and_download;
+    ph_list_files = pacman_list_files;
+    ph_get_file_from_package = pacman_get_file_from_package;
+  } in
+  register_package_handler "pacman" ph