[libgsystem] Start using libglnx

[Colin Walters <walters src gnome org>]

commit 16862cc4d4e38493705386cf26e2eb46063809ea
Author: Colin Walters <walters verbum org>
Date:   Sun Feb 15 14:11:58 2015 -0500

    Start using libglnx
    
    We can pull in libglnx here, and have this module become a GFile *
    wrapper plus legacy code.

 .gitmodules            |    3 +
 Makefile-libgsystem.am |    4 +-
 Makefile.am            |    6 ++
 buildutil/glib-tap.mk  |    1 -
 libglnx                |    1 +
 src/gsystem-shutil.c   |  151 ++----------------------------------------------
 6 files changed, 17 insertions(+), 149 deletions(-)
---
diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..e5084af
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "libglnx"]
+       path = libglnx
+       url = https://git.gnome.org/browse/libglnx
diff --git a/Makefile-libgsystem.am b/Makefile-libgsystem.am
index 676a230..9ee5fcd 100644
--- a/Makefile-libgsystem.am
+++ b/Makefile-libgsystem.am
@@ -43,9 +43,9 @@ libgsystem_la_SOURCES = \
        src/gsystem-subprocess.c \
        $(NULL)
 
-libgsystem_la_CFLAGS = $(AM_CFLAGS) $(BUILDDEP_GIO_UNIX_CFLAGS) $(BUILDDEP_SYSTEMD_JOURNAL_CFLAGS) 
-I$(srcdir)/src -DGSYSTEM_CONFIG_XATTRS
+libgsystem_la_CFLAGS = $(AM_CFLAGS) $(BUILDDEP_GIO_UNIX_CFLAGS) $(BUILDDEP_SYSTEMD_JOURNAL_CFLAGS) 
-I$(srcdir)/src -I$(srcdir)/libglnx -DGSYSTEM_CONFIG_XATTRS
 libgsystem_la_LDFLAGS = -version-info 0:0:0 -Bsymbolic-functions -export-symbols-regex "^gs_" -no-undefined 
-export-dynamic
-libgsystem_la_LIBADD = $(BUILDDEP_GIO_UNIX_LIBS) $(BUILDDEP_SYSTEMD_JOURNAL_LIBS)
+libgsystem_la_LIBADD = $(BUILDDEP_GIO_UNIX_LIBS) $(BUILDDEP_SYSTEMD_JOURNAL_LIBS) libglnx.la
 
 pkgconfig_DATA += src/libgsystem.pc
 
diff --git a/Makefile.am b/Makefile.am
index 74bbbdf..6a76e9f 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -31,5 +31,11 @@ if BUILDOPT_INTROSPECTION
 include $(INTROSPECTION_MAKEFILE)
 endif
 
+libglnx_srcpath := $(srcdir)/libglnx
+libglnx_cflags := $(BUILDDEP_GIO_UNIX_CFLAGS) -I$(libglnx_srcpath)
+libglnx_libs := $(BUILDDEP_GIO_UNIX_LIBS)
+
+noinst_LTLIBRARIES += libglnx.la
+include libglnx/Makefile-libglnx.am
 include Makefile-libgsystem.am
 include Makefile-tests.am
diff --git a/buildutil/glib-tap.mk b/buildutil/glib-tap.mk
index f25bb83..6b4af88 100644
--- a/buildutil/glib-tap.mk
+++ b/buildutil/glib-tap.mk
@@ -16,7 +16,6 @@ installed_test_PROGRAMS =
 installed_test_SCRIPTS =
 nobase_installed_test_DATA =
 
-noinst_LTLIBRARIES =
 noinst_PROGRAMS =
 noinst_SCRIPTS =
 noinst_DATA =
diff --git a/libglnx b/libglnx
new file mode 160000
index 0000000..ba67dd3
--- /dev/null
+++ b/libglnx
@@ -0,0 +1 @@
+Subproject commit ba67dd39a7d5cc779f83bb22512740cdb4c61b33
diff --git a/src/gsystem-shutil.c b/src/gsystem-shutil.c
index c15dc3f..e8e6ca3 100644
--- a/src/gsystem-shutil.c
+++ b/src/gsystem-shutil.c
@@ -25,8 +25,7 @@
 #define _GNU_SOURCE
 #endif
 
-#define _GSYSTEM_NO_LOCAL_ALLOC
-#include "libgsystem.h"
+#include <libglnx.h>
 #include "gsystem-glib-compat.h"
 #include <glib-unix.h>
 #include <string.h>
@@ -34,6 +33,9 @@
 #include <dirent.h>
 #include <fcntl.h>
 
+#define _GSYSTEM_NO_LOCAL_ALLOC
+#include "libgsystem.h"
+
 /* Taken from systemd/src/shared/util.h */
 union dirent_storage {
         struct dirent dent;
@@ -261,97 +263,6 @@ gs_shutil_cp_a (GFile         *src,
                       cancellable, error);
 }
 
-static unsigned char
-struct_stat_to_dt (struct stat *stbuf)
-{
-  if (S_ISDIR (stbuf->st_mode))
-    return DT_DIR;
-  if (S_ISREG (stbuf->st_mode))
-    return DT_REG;
-  if (S_ISCHR (stbuf->st_mode))
-    return DT_CHR;
-  if (S_ISBLK (stbuf->st_mode))
-    return DT_BLK;
-  if (S_ISFIFO (stbuf->st_mode))
-    return DT_FIFO;
-  if (S_ISLNK (stbuf->st_mode))
-    return DT_LNK;
-  if (S_ISSOCK (stbuf->st_mode))
-    return DT_SOCK;
-  return DT_UNKNOWN;
-}
-
-static gboolean
-gs_shutil_rm_rf_children (GSDirFdIterator    *dfd_iter,
-                          GCancellable       *cancellable,
-                          GError            **error)
-{
-  gboolean ret = FALSE;
-  struct dirent *dent;
-
-  while (TRUE)
-    {
-      if (!gs_dirfd_iterator_next_dent (dfd_iter, &dent, cancellable, error))
-        goto out;
-
-      if (dent == NULL)
-        break;
-
-      if (dent->d_type == DT_UNKNOWN)
-        {
-          struct stat stbuf;
-          if (fstatat (dfd_iter->fd, dent->d_name, &stbuf, AT_SYMLINK_NOFOLLOW) == -1)
-            {
-              int errsv = errno;
-              if (errsv == ENOENT)
-                continue;
-              else
-                {
-                  gs_set_error_from_errno (error, errsv);
-                  goto out;
-                }
-            }
-          dent->d_type = struct_stat_to_dt (&stbuf);
-          /* Assume unknown types are just treated like regular files */
-          if (dent->d_type == DT_UNKNOWN)
-            dent->d_type = DT_REG;
-        }
-
-      if (dent->d_type == DT_DIR)
-        {
-          gs_dirfd_iterator_cleanup GSDirFdIterator child_dfd_iter = { 0, };
-
-          if (!gs_dirfd_iterator_init_at (dfd_iter->fd, dent->d_name, FALSE,
-                                          &child_dfd_iter, error))
-            goto out;
-
-          if (!gs_shutil_rm_rf_children (&child_dfd_iter, cancellable, error))
-            goto out;
-
-          if (unlinkat (dfd_iter->fd, dent->d_name, AT_REMOVEDIR) == -1)
-            {
-              gs_set_error_from_errno (error, errno);
-              goto out;
-            }
-        }
-      else
-        {
-          if (unlinkat (dfd_iter->fd, dent->d_name, 0) == -1)
-            {
-              if (errno != ENOENT)
-                {
-                  gs_set_error_from_errno (error, errno);
-                  goto out;
-                }
-            }
-        }
-    }
-
-  ret = TRUE;
- out:
-  return ret;
-}
-
 /**
  * gs_shutil_rm_rf_at:
  * @dfd: A directory file descriptor, or -1 for current
@@ -369,59 +280,7 @@ gs_shutil_rm_rf_at (int           dfd,
                     GCancellable *cancellable,
                     GError      **error)
 {
-  gboolean ret = FALSE;
-  int target_dfd = -1;
-  gs_dirfd_iterator_cleanup GSDirFdIterator dfd_iter = { 0, };
-
-  /* With O_NOFOLLOW first */
-  target_dfd = openat (dfd, path,
-                       O_RDONLY | O_NONBLOCK | O_DIRECTORY | O_CLOEXEC | O_NOFOLLOW);
-
-  if (target_dfd == -1)
-    {
-      int errsv = errno;
-      if (errsv == ENOENT)
-        {
-          ;
-        }
-      else if (errsv == ENOTDIR || errsv == ELOOP)
-        {
-          if (unlinkat (dfd, path, 0) != 0)
-            {
-              gs_set_error_from_errno (error, errno);
-              goto out;
-            }
-        }
-      else
-        {
-          gs_set_error_from_errno (error, errno);
-          goto out;
-        }
-    }
-  else
-    {
-      if (!gs_dirfd_iterator_init_take_fd (target_dfd, &dfd_iter, error))
-        goto out;
-      target_dfd = -1;
-
-      if (!gs_shutil_rm_rf_children (&dfd_iter, cancellable, error))
-        goto out;
-
-      if (unlinkat (dfd, path, AT_REMOVEDIR) == -1)
-        {
-          int errsv = errno;
-          if (errsv != ENOENT)
-            {
-              gs_set_error_from_errno (error, errno);
-              goto out;
-            }
-        }
-    }
-
-  ret = TRUE;
- out:
-  if (target_dfd != -1) (void) close (target_dfd);
-  return ret;
+  return glnx_shutil_rm_rf_at (dfd, path, cancellable, error);
 }
 
 /**