New remove option : -u / --unneeded (FS#6505).

With --unneeded option 'pacman -R' doesn't stop in case of dependency error;
it removes the needed-dependency targets from the target-list instead.  See
also: http://archlinux.org/pipermail/pacman-dev/2007-October/009653.html .

The patch also adds a new causingpkg field to pmdepmissing_t which indicates
the to-be-removed package which would cause a dependency break. This is
needed, because miss->depend.name may be a provision. miss->causingpkg will
be useful in -R dependency error messages too.

[Xavier: renamed inducer to causingpkg, removed the _alpm_pkgname_pkg_cmp
helper function as requested by Aaron. This might be added by a further
commit.  Other small cleanups, updated manpage and bash completion.]

Signed-off-by: Chantry Xavier <shiningxc@gmail.com>

1 files changed, 19 insertions, 0 deletions

diff --git a/pactest/tests/remove049.py b/pactest/tests/remove049.py
new file mode 100644
index 00000000..724f8da2
--- /dev/null
+++ b/pactest/tests/remove049.py
@@ -0,0 +1,19 @@
+self.description = "-Ru test"
+
+lp1 = pmpkg("pkg1")
+lp1.requiredby = [ "pkg3" ]
+self.addpkg2db("local", lp1)
+
+lp2 = pmpkg("pkg2")
+self.addpkg2db("local", lp2)
+
+lp3 = pmpkg("pkg3")
+lp3.depends = [ "pkg1" ]
+self.addpkg2db("local", lp3)
+
+self.args = "-Ru pkg1 pkg2"
+
+self.addrule("PACMAN_RETCODE=0")
+self.addrule("PKG_EXIST=pkg1")
+self.addrule("!PKG_EXIST=pkg2")
+self.addrule("PKG_EXIST=pkg3")
\ No newline at end of file