[PATCH] Default disable autounmask package.keywords/mask changes (bug 658648)

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[PATCH] Default disable autounmask package.keywords/mask changes (bug 658648)

Zac Medico-2
Add emerge --autounmask-license and --autounmask-use options which are
enabled by default, and disable package.keywords/mask changes by
default. For backward compatibility, previous behavior of
--autounmask=y and --autounmask=n is entirely preserved. Users can
get the old behavior simply by adding --autounmask to the make.conf
EMERGE_DEFAULT_OPTS variable.

Bug: https://bugs.gentoo.org/658648
Signed-off-by: Zac Medico <[hidden email]>
---
 lib/_emerge/create_depgraph_params.py         | 35 +++++++++++++++++++
 lib/_emerge/depgraph.py                       | 16 +++++----
 lib/_emerge/main.py                           | 10 ++++++
 lib/portage/tests/resolver/test_autounmask.py | 35 ++++++++++++++++++-
 man/emerge.1                                  | 21 +++++++++--
 5 files changed, 107 insertions(+), 10 deletions(-)

diff --git a/lib/_emerge/create_depgraph_params.py b/lib/_emerge/create_depgraph_params.py
index 08605baa1..7d8da9065 100644
--- a/lib/_emerge/create_depgraph_params.py
+++ b/lib/_emerge/create_depgraph_params.py
@@ -7,6 +7,11 @@ from portage.util import writemsg_level
 def create_depgraph_params(myopts, myaction):
  #configure emerge engine parameters
  #
+ # autounmask:               enable autounmask
+ # autounmask_keep_keywords: prevent autounmask changes to package.accept_keywords
+ # autounmask_keep_license:  prevent autounmask changes to package.license
+ # autounmask_keep_masks:    prevent autounmask changes to package.mask
+ # autounmask_keep_use:      prevent autounmask changes to package.use
  # self:      include _this_ package regardless of if it is merged.
  # selective: exclude the package if it is merged
  # recurse:   go into the dependencies
@@ -34,6 +39,36 @@ def create_depgraph_params(myopts, myaction):
  # binpkg_changed_deps: reject binary packages with outdated deps
  myparams = {"recurse" : True}
 
+ autounmask_keep_keywords = myopts.get("--autounmask-keep-keywords")
+ autounmask_keep_masks = myopts.get("--autounmask-keep-masks")
+
+ autounmask = myopts.get("--autounmask")
+ autounmask_license = myopts.get('--autounmask-license')
+ autounmask_use = myopts.get('--autounmask-use')
+ if autounmask == 'n':
+ autounmask = False
+ else:
+ if autounmask is None:
+ if autounmask_use in (None, 'y'):
+ autounmask = True
+ elif autounmask_license in (None, 'y'):
+ autounmask = True
+
+ # Do not enable package.accept_keywords or package.mask
+ # changes by default.
+ if autounmask_keep_keywords is None:
+ autounmask_keep_keywords = True
+ if autounmask_keep_masks is None:
+ autounmask_keep_masks = True
+ else:
+ autounmask = True
+
+ myparams['autounmask'] = autounmask
+ myparams['autounmask_keep_use'] = True if autounmask_use == 'n' else False
+ myparams['autounmask_keep_license'] = True if autounmask_license == 'n' else False
+ myparams['autounmask_keep_keywords'] = False if autounmask_keep_keywords in (None, 'n') else True
+ myparams['autounmask_keep_masks'] = False if autounmask_keep_masks in (None, 'n') else True
+
  bdeps = myopts.get("--with-bdeps")
  if bdeps is not None:
  myparams["bdeps"] = bdeps
diff --git a/lib/_emerge/depgraph.py b/lib/_emerge/depgraph.py
index 51614fc14..3788cbe04 100644
--- a/lib/_emerge/depgraph.py
+++ b/lib/_emerge/depgraph.py
@@ -5907,15 +5907,19 @@ class depgraph(object):
  if self._dynamic_config._autounmask is not True:
  return
 
- autounmask_keep_keywords = self._frozen_config.myopts.get("--autounmask-keep-keywords", "n") != "n"
- autounmask_keep_masks = self._frozen_config.myopts.get("--autounmask-keep-masks", "n") != "n"
+ autounmask_keep_keywords = self._dynamic_config.myparams['autounmask_keep_keywords']
+ autounmask_keep_license = self._dynamic_config.myparams['autounmask_keep_license']
+ autounmask_keep_masks = self._dynamic_config.myparams['autounmask_keep_masks']
+ autounmask_keep_use = self._dynamic_config.myparams['autounmask_keep_use']
  autounmask_level = self._AutounmaskLevel()
 
- autounmask_level.allow_use_changes = True
- yield autounmask_level
+ if not autounmask_keep_use:
+ autounmask_level.allow_use_changes = True
+ yield autounmask_level
 
- autounmask_level.allow_license_changes = True
- yield autounmask_level
+ if not autounmask_keep_license:
+ autounmask_level.allow_license_changes = True
+ yield autounmask_level
 
  if not autounmask_keep_keywords:
  autounmask_level.allow_unstable_keywords = True
diff --git a/lib/_emerge/main.py b/lib/_emerge/main.py
index e8b2c2e13..486664c84 100644
--- a/lib/_emerge/main.py
+++ b/lib/_emerge/main.py
@@ -347,11 +347,21 @@ def parse_opts(tmpcmdline, silent=False):
  "choices" : true_y_or_n
  },
 
+ "--autounmask-license": {
+ "help"    : "allow autounmask to change package.license",
+ "choices" : y_or_n
+ },
+
  "--autounmask-unrestricted-atoms": {
  "help"    : "write autounmask changes with >= atoms if possible",
  "choices" : true_y_or_n
  },
 
+ "--autounmask-use": {
+ "help"    : "allow autounmask to change package.use",
+ "choices" : y_or_n
+ },
+
  "--autounmask-keep-keywords": {
  "help"    : "don't add package.accept_keywords entries",
  "choices" : true_y_or_n
diff --git a/lib/portage/tests/resolver/test_autounmask.py b/lib/portage/tests/resolver/test_autounmask.py
index 64718dbf9..a3bf0ff94 100644
--- a/lib/portage/tests/resolver/test_autounmask.py
+++ b/lib/portage/tests/resolver/test_autounmask.py
@@ -93,6 +93,26 @@ class AutounmaskTestCase(TestCase):
  mergelist=["dev-libs/C-1", "dev-libs/B-1", "dev-libs/A-1"],
  use_changes={ "dev-libs/B-1": {"foo": True} }),
 
+ ResolverPlaygroundTestCase(
+ ["dev-libs/A:1"],
+ options={"--autounmask-use": "y"},
+ success=False,
+ mergelist=["dev-libs/C-1", "dev-libs/B-1", "dev-libs/A-1"],
+ use_changes={ "dev-libs/B-1": {"foo": True} }),
+
+ # Test default --autounmask-use
+ ResolverPlaygroundTestCase(
+ ["dev-libs/A:1"],
+ success=False,
+ mergelist=["dev-libs/C-1", "dev-libs/B-1", "dev-libs/A-1"],
+ use_changes={ "dev-libs/B-1": {"foo": True} }),
+
+ # Explicitly disable --autounmask-use
+ ResolverPlaygroundTestCase(
+ ["dev-libs/A:1"],
+ success=False,
+ options={"--autounmask-use": "n"}),
+
  #Make sure we restart if needed.
  ResolverPlaygroundTestCase(
  ["dev-libs/A:1", "dev-libs/B"],
@@ -408,17 +428,30 @@ class AutounmaskTestCase(TestCase):
  }
 
  test_cases = (
+ # --autounmask=n negates default --autounmask-license
  ResolverPlaygroundTestCase(
  ["=dev-libs/A-1"],
  options={"--autounmask": 'n'},
  success=False),
  ResolverPlaygroundTestCase(
  ["=dev-libs/A-1"],
- options={"--autounmask": True},
+ options={"--autounmask-license": "y"},
  success=False,
  mergelist=["dev-libs/A-1"],
  license_changes={ "dev-libs/A-1": set(["TEST"]) }),
 
+ # Test default --autounmask-license
+ ResolverPlaygroundTestCase(
+ ["=dev-libs/A-1"],
+ success=False,
+ mergelist=["dev-libs/A-1"],
+ license_changes={ "dev-libs/A-1": set(["TEST"]) }),
+
+ ResolverPlaygroundTestCase(
+ ["=dev-libs/A-1"],
+ options={"--autounmask-license": "n"},
+ success=False),
+
  #Test license+keyword+use change at once.
  ResolverPlaygroundTestCase(
  ["=dev-libs/C-1"],
diff --git a/man/emerge.1 b/man/emerge.1
index d61250ec6..c0edc325e 100644
--- a/man/emerge.1
+++ b/man/emerge.1
@@ -352,15 +352,18 @@ intended to be set in the \fBmake.conf\fR(5)
 .TP
 .BR "\-\-autounmask [ y | n ]"
 Automatically unmask packages and generate package.use
-settings as necessary to satisfy dependencies. This
-option is enabled by default. If any configuration
+settings as necessary to satisfy dependencies. This option
+is disabled by default, except for portions of behavior
+which are controlled by the \fB\-\-autounmask\-use\fR and
+\fB\-\-autounmask\-license\fR options (\fB\-\-autounmask=n\fR
+disables autounmask behavior entirely). If any configuration
 changes are required, then they will be displayed
 after the merge list and emerge will immediately
 abort. If the displayed configuration changes are
 satisfactory, you should copy and paste them into
 the specified configuration file(s), or enable the
 \fB\-\-autounmask\-write\fR option. The
-\fBEMERGE_DEFAULT_OPTS\fR variable may be used to
+\fBEMERGE_DEFAULT_OPTS\fR variable may be used to entirely
 disable this option by default in \fBmake.conf\fR(5).
 .TP
 .BR "\-\-autounmask\-backtrack < y | n >"
@@ -407,6 +410,18 @@ If \-\-autounmask is enabled, no package.unmask or ** keyword changes
 will be created. This leads to unsatisfied dependencies if
 no other solution exists.
 .TP
+.BR "\-\-autounmask\-license < y | n >"
+Allow autounmask package.license changes. This option is enabled by default
+(either \fB\-\-autounmask=n\fR or \fB\-\-autounmask\-license=n\fR disables
+it). The \fBEMERGE_DEFAULT_OPTS\fR variable may be used to
+disable this option by default in \fBmake.conf\fR(5).
+.TP
+.BR "\-\-autounmask\-use < y | n >"
+Allow autounmask package.use changes. This option is enabled by default
+(either \fB\-\-autounmask=n\fR or \fB\-\-autounmask\-use=n\fR disables
+it). The \fBEMERGE_DEFAULT_OPTS\fR variable may be used to
+disable this option by default in \fBmake.conf\fR(5).
+.TP
 .BR "\-\-autounmask\-write [ y | n ]"
 If \-\-autounmask is enabled, changes are written
 to config files, respecting \fBCONFIG_PROTECT\fR and \fB\-\-ask\fR.
--
2.21.0