New APIs: inspect-get-package-format, inspect-get-package-management.

This APIs reimplement some parts of virt-inspector in C.

2 files changed, 167 insertions, 0 deletions

diff --git a/src/guestfs-internal.h b/src/guestfs-internal.h
index 6dbbeecb..65ca4f20 100644
--- a/src/guestfs-internal.h
+++ b/src/guestfs-internal.h
@@ -181,6 +181,25 @@ enum inspect_os_distro {
   OS_DISTRO_MEEGO,
 };
 
+enum inspect_os_package_format {
+  OS_PACKAGE_FORMAT_UNKNOWN = 0,
+  OS_PACKAGE_FORMAT_RPM,
+  OS_PACKAGE_FORMAT_DEB,
+  OS_PACKAGE_FORMAT_PACMAN,
+  OS_PACKAGE_FORMAT_EBUILD,
+  OS_PACKAGE_FORMAT_PISI
+};
+
+enum inspect_os_package_management {
+  OS_PACKAGE_MANAGEMENT_UNKNOWN = 0,
+  OS_PACKAGE_MANAGEMENT_YUM,
+  OS_PACKAGE_MANAGEMENT_UP2DATE,
+  OS_PACKAGE_MANAGEMENT_APT,
+  OS_PACKAGE_MANAGEMENT_PACMAN,
+  OS_PACKAGE_MANAGEMENT_PORTAGE,
+  OS_PACKAGE_MANAGEMENT_PISI,
+};
+
 struct inspect_fs {
   int is_root;
   char *device;
@@ -189,6 +208,8 @@ struct inspect_fs {
   enum inspect_fs_content content;
   enum inspect_os_type type;
   enum inspect_os_distro distro;
+  enum inspect_os_package_format package_format;
+  enum inspect_os_package_management package_management;
   char *product_name;
   int major_version;
   int minor_version;
diff --git a/src/inspect.c b/src/inspect.c
index 2b61a757..3b2720c7 100644
--- a/src/inspect.c
+++ b/src/inspect.c
@@ -197,6 +197,8 @@ static int parse_unsigned_int (guestfs_h *g, const char *str);
 static int add_fstab_entry (guestfs_h *g, struct inspect_fs *fs,
                             const char *spec, const char *mp);
 static char *resolve_fstab_device (guestfs_h *g, const char *spec);
+static void check_package_format (guestfs_h *g, struct inspect_fs *fs);
+static void check_package_management (guestfs_h *g, struct inspect_fs *fs);
 
 static int
 check_for_filesystem_on (guestfs_h *g, const char *device)
@@ -516,6 +518,10 @@ check_linux_root (guestfs_h *g, struct inspect_fs *fs)
 
  skip_release_checks:;
 
+  /* If distro test above was successful, work out the package format. */
+  check_package_format (g, fs);
+  check_package_management (g, fs);
+
   /* Determine the architecture. */
   const char *binaries[] =
     { "/bin/bash", "/bin/ls", "/bin/echo", "/bin/rm", "/bin/sh" };
@@ -776,6 +782,9 @@ check_windows_root (guestfs_h *g, struct inspect_fs *fs)
   if (check_windows_registry (g, fs) == -1)
     return -1;
 
+  check_package_format (g, fs);
+  check_package_management (g, fs);
+
   return 0;
 }
 
@@ -972,6 +981,84 @@ parse_unsigned_int (guestfs_h *g, const char *str)
   return ret;
 }
 
+/* At the moment, package format and package management is just a
+ * simple function of the distro and major_version fields, so these
+ * can never return an error.  We might be cleverer in future.
+ */
+static void
+check_package_format (guestfs_h *g, struct inspect_fs *fs)
+{
+  switch (fs->distro) {
+  case OS_DISTRO_FEDORA:
+  case OS_DISTRO_MEEGO:
+  case OS_DISTRO_REDHAT_BASED:
+  case OS_DISTRO_RHEL:
+    fs->package_format = OS_PACKAGE_FORMAT_RPM;
+    break;
+
+  case OS_DISTRO_DEBIAN:
+  case OS_DISTRO_UBUNTU:
+    fs->package_format = OS_PACKAGE_FORMAT_DEB;
+    break;
+
+  case OS_DISTRO_ARCHLINUX:
+    fs->package_format = OS_PACKAGE_FORMAT_PACMAN;
+    break;
+  case OS_DISTRO_GENTOO:
+    fs->package_format = OS_PACKAGE_FORMAT_EBUILD;
+    break;
+  case OS_DISTRO_PARDUS:
+    fs->package_format = OS_PACKAGE_FORMAT_PISI;
+    break;
+
+  case OS_DISTRO_WINDOWS:
+  case OS_DISTRO_UNKNOWN:
+  default:
+    fs->package_format = OS_PACKAGE_FORMAT_UNKNOWN;
+    break;
+  }
+}
+
+static void
+check_package_management (guestfs_h *g, struct inspect_fs *fs)
+{
+  switch (fs->distro) {
+  case OS_DISTRO_FEDORA:
+  case OS_DISTRO_MEEGO:
+    fs->package_management = OS_PACKAGE_MANAGEMENT_YUM;
+    break;
+
+  case OS_DISTRO_REDHAT_BASED:
+  case OS_DISTRO_RHEL:
+    if (fs->major_version >= 5)
+      fs->package_management = OS_PACKAGE_MANAGEMENT_YUM;
+    else
+      fs->package_management = OS_PACKAGE_MANAGEMENT_UP2DATE;
+    break;
+
+  case OS_DISTRO_DEBIAN:
+  case OS_DISTRO_UBUNTU:
+    fs->package_management = OS_PACKAGE_MANAGEMENT_APT;
+    break;
+
+  case OS_DISTRO_ARCHLINUX:
+    fs->package_management = OS_PACKAGE_MANAGEMENT_PACMAN;
+    break;
+  case OS_DISTRO_GENTOO:
+    fs->package_management = OS_PACKAGE_MANAGEMENT_PORTAGE;
+    break;
+  case OS_DISTRO_PARDUS:
+    fs->package_management = OS_PACKAGE_MANAGEMENT_PISI;
+    break;
+
+  case OS_DISTRO_WINDOWS:
+  case OS_DISTRO_UNKNOWN:
+  default:
+    fs->package_management = OS_PACKAGE_MANAGEMENT_UNKNOWN;
+    break;
+  }
+}
+
 static struct inspect_fs *
 search_for_root (guestfs_h *g, const char *root)
 {
@@ -1194,6 +1281,53 @@ guestfs__inspect_get_filesystems (guestfs_h *g, const char *root)
   return ret;
 }
 
+char *
+guestfs__inspect_get_package_format (guestfs_h *g, const char *root)
+{
+  struct inspect_fs *fs = search_for_root (g, root);
+  if (!fs)
+    return NULL;
+
+  char *ret;
+  switch (fs->package_format) {
+  case OS_PACKAGE_FORMAT_RPM: ret = safe_strdup (g, "rpm"); break;
+  case OS_PACKAGE_FORMAT_DEB: ret = safe_strdup (g, "deb"); break;
+  case OS_PACKAGE_FORMAT_PACMAN: ret = safe_strdup (g, "pacman"); break;
+  case OS_PACKAGE_FORMAT_EBUILD: ret = safe_strdup (g, "ebuild"); break;
+  case OS_PACKAGE_FORMAT_PISI: ret = safe_strdup (g, "pisi"); break;
+  case OS_PACKAGE_FORMAT_UNKNOWN:
+  default:
+    ret = safe_strdup (g, "unknown");
+    break;
+  }
+
+  return ret;
+}
+
+char *
+guestfs__inspect_get_package_management (guestfs_h *g, const char *root)
+{
+  struct inspect_fs *fs = search_for_root (g, root);
+  if (!fs)
+    return NULL;
+
+  char *ret;
+  switch (fs->package_management) {
+  case OS_PACKAGE_MANAGEMENT_YUM: ret = safe_strdup (g, "yum"); break;
+  case OS_PACKAGE_MANAGEMENT_UP2DATE: ret = safe_strdup (g, "up2date"); break;
+  case OS_PACKAGE_MANAGEMENT_APT: ret = safe_strdup (g, "apt"); break;
+  case OS_PACKAGE_MANAGEMENT_PACMAN: ret = safe_strdup (g, "pacman"); break;
+  case OS_PACKAGE_MANAGEMENT_PORTAGE: ret = safe_strdup (g, "portage"); break;
+  case OS_PACKAGE_MANAGEMENT_PISI: ret = safe_strdup (g, "pisi"); break;
+  case OS_PACKAGE_MANAGEMENT_UNKNOWN:
+  default:
+    ret = safe_strdup (g, "unknown");
+    break;
+  }
+
+  return ret;
+}
+
 #else /* no PCRE or hivex at compile time */
 
 /* XXX These functions should be in an optgroup. */
@@ -1268,6 +1402,18 @@ guestfs__inspect_get_filesystems (guestfs_h *g, const char *root)
   NOT_IMPL(NULL);
 }
 
+char *
+guestfs__inspect_get_package_format (guestfs_h *g, const char *root)
+{
+  NOT_IMPL(NULL);
+}
+
+char *
+guestfs__inspect_get_package_management (guestfs_h *g, const char *root)
+{
+  NOT_IMPL(NULL);
+}
+
 #endif /* no PCRE or hivex at compile time */
 
 void