[PATCH 1/2] opkg: Call prerm and postrm scripts on package upgrade.

[Peter Urbanec <openembedded-devel@urbanec.net>]

opkg upgrade will now call prerm and postrm scripts from the old package
with the "upgrade new-version" arguments, similar to what dpkg does.

Signed-off-by: Peter Urbanec <openembedded-devel@urbanec.net>
Upstream-Status: Submitted [opkg-devel@googlegroups.com]
---
 .../opkg/opkg/prerm-and-postrm-scripts.patch       | 79 ++++++++++++++++++++++
 meta/recipes-devtools/opkg/opkg_0.2.2.bb           |  1 +
 2 files changed, 80 insertions(+)
 create mode 100644 meta/recipes-devtools/opkg/opkg/prerm-and-postrm-scripts.patch

diff --git a/meta/recipes-devtools/opkg/opkg/prerm-and-postrm-scripts.patch b/meta/recipes-devtools/opkg/opkg/prerm-and-postrm-scripts.patch
new file mode 100644
index 0000000..c393807
--- /dev/null
+++ b/meta/recipes-devtools/opkg/opkg/prerm-and-postrm-scripts.patch
@@ -0,0 +1,79 @@
+From 476965fdb2d6eec559242e6205cbb07d539b80e1 Mon Sep 17 00:00:00 2001
+From: Peter Urbanec <openembedded-devel@urbanec.net>
+Date: Wed, 15 Oct 2014 14:32:22 +1100
+Subject: [PATCH] opkg_install: Call prerm and postrm scripts on package
+ upgrade.
+To: opkg-devel@googlegroups.com
+Cc: paul@paulbarker.me.uk
+
+When upgrading a package from v1 to v2, run "v1-prerm upgrade v2" and
+"v1-postrm upgrade v2", similarly to what dpkg does.
+
+This patch fixes issue 104.
+
+Signed-off-by: Peter Urbanec <openembedded-devel@urbanec.net>
+---
+ libopkg/opkg_install.c | 40 ++++++++++++++++++++++++++++++++++++++--
+ 1 file changed, 38 insertions(+), 2 deletions(-)
+
+diff --git a/libopkg/opkg_install.c b/libopkg/opkg_install.c
+index 4f6fe65..ec0f34a 100644
+--- a/libopkg/opkg_install.c
++++ b/libopkg/opkg_install.c
+@@ -601,7 +601,25 @@ prerm_upgrade_old_pkg(pkg_t *pkg, pkg_t *old_pkg)
+ 	   Error unwind, for both the above cases:
+ 	   old-postinst abort-upgrade new-version
+      */
+-     return 0;
++    int err;
++    char *script_args;
++    char *new_version;
++
++    if (!old_pkg || !pkg)
++        return 0;
++
++    new_version = pkg_version_str_alloc(pkg);
++
++    sprintf_alloc(&script_args, "upgrade %s", new_version);
++    free(new_version);
++    err = pkg_run_script(old_pkg, "prerm", script_args);
++    free(script_args);
++    if (err != 0) {
++        opkg_msg(ERROR, "prerm script for package \"%s\" failed\n",
++                 old_pkg->name);
++        return -1;
++    }
++    return 0;
+ }
+ + static int
+@@ -1001,7 +1019,25 @@ postrm_upgrade_old_pkg(pkg_t *pkg, pkg_t *old_pkg)
+ 	   new-postrm failed-upgrade old-version
+ 	Error unwind, for both cases:
+ 	   old-preinst abort-upgrade new-version    */
+-     return 0;
++    int err;
++    char *script_args;
++    char *new_version;
++
++    if (!old_pkg || !pkg)
++        return 0;
++
++    new_version = pkg_version_str_alloc(pkg);
++
++    sprintf_alloc(&script_args, "upgrade %s", new_version);
++    free(new_version);
++    err = pkg_run_script(old_pkg, "postrm", script_args);
++    free(script_args);
++    if (err != 0) {
++        opkg_msg(ERROR, "postrm script for package \"%s\" failed\n",
++                 old_pkg->name);
++        return -1;
++    }
++    return 0;
+ }
+ + static int
+-- +2.1.2
+
diff --git a/meta/recipes-devtools/opkg/opkg_0.2.2.bb b/meta/recipes-devtools/opkg/opkg_0.2.2.bb
index 3dd7489..c5b6561 100644
--- a/meta/recipes-devtools/opkg/opkg_0.2.2.bb
+++ b/meta/recipes-devtools/opkg/opkg_0.2.2.bb
@@ -4,6 +4,7 @@ SRC_URI = "http://downloads.yoctoproject.org/releases/${BPN}/${BPN}-${PV}.tar.gz
            file://no-install-recommends.patch \
            file://add-exclude.patch \
            file://opkg-configure.service \
+           file://prerm-and-postrm-scripts.patch \
 "
  S = "${WORKDIR}/${BPN}-${PV}"
-- 
2.1.2