Re: [Rpm-maint] [rpm-software-management/rpm] Support new %[ ] expression expansion syntax (#846)

2019-09-18 Thread Michael Schroeder
@mlschroe pushed 1 commit.

630966ce35c39ac5a8c2a2583099a4165ac15c6f  Implement short-circuit for logical 
and ternary operators


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[Rpm-maint] [rpm-software-management/rpm] Support new %[ ] expression expansion syntax (#846)

2019-09-18 Thread Michael Schroeder
This adds %[ expr ] as a new means to do expression expansion in rpm. Unlike 
%{expr:} the expression is expanded in the parser, so we are safe against 
expansion results messing up the syntax and also can to short-circuiting.
You can view, comment on, or merge this pull request online at:

  https://github.com/rpm-software-management/rpm/pull/846

-- Commit Summary --

  * Add findMacroEnd() function to find the end of a macro call
  * Add support for primary expansion to the expression parser

-- File Changes --

M build/parseSpec.c (2)
M rpmio/Makefile.am (2)
M rpmio/expression.c (73)
M rpmio/macro.c (130)
M rpmio/rpmmacro.h (9)

-- Patch Links --

https://github.com/rpm-software-management/rpm/pull/846.patch
https://github.com/rpm-software-management/rpm/pull/846.diff

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Re: [Rpm-maint] [rpm-software-management/rpm] Suppress inhibition lock warning message in single-user mode (#831)

2019-09-18 Thread Panu Matilainen
Much better, thanks. As I don't see a better way to do it with systemd...

Thanks for the patch!

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Re: [Rpm-maint] [rpm-software-management/rpm] Suppress inhibition lock warning message in single-user mode (#831)

2019-09-18 Thread Panu Matilainen
Merged #831 into master.

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Re: [Rpm-maint] [rpm-software-management/rpm] expression expansion (#834)

2019-09-18 Thread Panu Matilainen
Hmm. It's on the subtle side, and such things aren't the easiest to communicate 
to the packager community at large. But lets see...

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Re: [Rpm-maint] [rpm-software-management/rpm] Add ternary operator support to expression parser (#838)

2019-09-18 Thread Panu Matilainen
Merged #838 into master.

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Re: [Rpm-maint] [rpm-software-management/rpm] Add ternary operator support to expression parser (#838)

2019-09-18 Thread Panu Matilainen
Okay, looks nice and contained to me. Thanks a bunch!

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Re: [Rpm-maint] [rpm-software-management/rpm] Add ternary operator support to expression parser (#838)

2019-09-18 Thread Michael Schroeder
mlschroe commented on this pull request.



> + result = v1->data.i != 0;
+   break;
+  case VALUE_TYPE_STRING:
+   result = v1->data.s[0] != '\0';
+   break;
+  default:
+   goto err;
+}
+valueFree(v1);
+if (rdToken(state))
+  goto err;
+v1 = doTernary(state);
+if (v1 == NULL)
+  goto err;
+if (state->nextToken != TOK_TERNARY_ALT) {
+  exprErr(, _("syntax error in expression"), state->p);

Damn. I'm copying from the wrong line ;)

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Re: [Rpm-maint] [rpm-software-management/rpm] Add ternary operator support to expression parser (#838)

2019-09-18 Thread Panu Matilainen
pmatilai commented on this pull request.



> + result = v1->data.i != 0;
+   break;
+  case VALUE_TYPE_STRING:
+   result = v1->data.s[0] != '\0';
+   break;
+  default:
+   goto err;
+}
+valueFree(v1);
+if (rdToken(state))
+  goto err;
+v1 = doTernary(state);
+if (v1 == NULL)
+  goto err;
+if (state->nextToken != TOK_TERNARY_ALT) {
+  exprErr(, _("syntax error in expression"), state->p);

expression.c: In function ‘doTernary’:
expression.c:712:15: warning: passing argument 1 of ‘exprErr’ from incompatible 
pointer type [-Wincompatible-pointer-types]
  712 |   exprErr(, _("syntax error in expression"), state->p);
  |   ^~


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Re: [Rpm-maint] [rpm-software-management/rpm] Add ternary operator support to expression parser (#838)

2019-09-18 Thread pavlinamv
@mlschroe: Thank you. The PR looks good to me.

@pmatilai After the mentioned example there is a list of operators that can be 
used in a condition after
```
%if
```

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Re: [Rpm-maint] [rpm-software-management/rpm] Add ternary operator support to expression parser (#838)

2019-09-18 Thread Michael Schroeder
I added the ternary operator to the list of supported operators.

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Re: [Rpm-maint] [rpm-software-management/rpm] Localize our chroot in/out operations to minimize time spent inside (#836)

2019-09-18 Thread ニール・ゴンパ
Conan-Kudo approved this pull request.





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Re: [Rpm-maint] [rpm-software-management/rpm] Add ternary operator support to expression parser (#838)

2019-09-18 Thread Panu Matilainen
@pavlinamv , what do you mean by changing those conditionals in the 
documentation? I don't see them needing changing because of this, but maybe I'm 
missing something.

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Re: [Rpm-maint] [rpm-software-management/rpm] expression expansion (#834)

2019-09-18 Thread Michael Schroeder
No, don't drop it. It's still useful if you need to do expansion before calling 
the expression parser.
I.e. you have either 'expand first, then don't expand in the expression parser' 
or 'expand in the expression parser':
```
%define test 1 + 2
%{expr:%test}
# the next line expands twice!
%{expand:%%[ %test ]}
```


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Re: [Rpm-maint] [rpm-software-management/rpm] Trap division by zero in expression parser (#844)

2019-09-18 Thread Panu Matilainen
Merged #844 into master.

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Re: [Rpm-maint] [rpm-software-management/rpm] Stop expanding strings in the expression parser (#845)

2019-09-18 Thread Panu Matilainen
pmatilai approved this pull request.

Agreed. Thanks for the patch.



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Re: [Rpm-maint] [rpm-software-management/rpm] Trap division by zero in expression parser (#844)

2019-09-18 Thread Panu Matilainen
@pmatilai pushed 1 commit.

df5d5b712b6210702c5b399f716780331b5a8b47  Trap division by zero in expression 
parser


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Re: [Rpm-maint] [rpm-software-management/rpm] Trap division by zero in expression parser (#844)

2019-09-18 Thread Panu Matilainen
pmatilai commented on this pull request.



> @@ -438,6 +438,10 @@ static Value doMultiplyDivide(ParseState state)
 if (valueIsInteger(v1)) {
   int i1 = v1->data.i, i2 = v2->data.i;
 
+  if ((i2 == 0) && (TOK_DIVIDE)) {

Ugh, yeah:

```
$ ./rpm --eval "%{expr:1*0}"
error: division by zero: 1*0
```


Thanks for spotting, I admit I barely looked at the implementation, this is 
originally @pavlinamv 's patch in PR #833. 

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Re: [Rpm-maint] [rpm-software-management/rpm] Trap division by zero in expression parser (#844)

2019-09-18 Thread Michael Schroeder
mlschroe commented on this pull request.



> @@ -438,6 +438,10 @@ static Value doMultiplyDivide(ParseState state)
 if (valueIsInteger(v1)) {
   int i1 = v1->data.i, i2 = v2->data.i;
 
+  if ((i2 == 0) && (TOK_DIVIDE)) {

Is `(TOK_DIVIDE)` supposed to be `(op == TOK_DIVIDE)`?

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Re: [Rpm-maint] [rpm-software-management/rpm] Add ternary operator support to expression parser (#838)

2019-09-18 Thread pavlinamv
Could you change file
```
rpm/doc/manual/spec 
```

in section "Conditionals" the text after example:
```
%if 0%{?fedora} > 10 || 0%{?rhel} > 7
```

according of the PR?



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[Rpm-maint] [rpm-software-management/rpm] Stop expanding strings in the expression parser (#845)

2019-09-18 Thread Michael Schroeder
The %if lines in the specfile are expanded before the expressions
get evaluated, so the re-expansion of strings is surprising.
Its also not done for integers, which makes it inconsistent.

The original expression parser seems to have been written
without taking the upfront expansion into account, thus the
string expansion and the TOK_IDENTIFIER code.

As I cant imagine anybody using this feature lets just drop it.
You can view, comment on, or merge this pull request online at:

  https://github.com/rpm-software-management/rpm/pull/845

-- Commit Summary --

  * Stop expanding strings in the expression parser

-- File Changes --

M rpmio/expression.c (3)

-- Patch Links --

https://github.com/rpm-software-management/rpm/pull/845.patch
https://github.com/rpm-software-management/rpm/pull/845.diff

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Re: [Rpm-maint] [rpm-software-management/rpm] Do not allow to divide by 0 in the expression evaluation (#833)

2019-09-18 Thread Panu Matilainen
Hmm, but GH doesn't let me merge despite resolving the conflicts. What a mess, 
probably my fault.
I'll handle via #844 separately.

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Re: [Rpm-maint] [rpm-software-management/rpm] Do not allow to divide by 0 in the expression evaluation (#833)

2019-09-18 Thread Panu Matilainen
Closed #833.

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[Rpm-maint] [rpm-software-management/rpm] Trap division by zero in expression parser (#844)

2019-09-18 Thread Panu Matilainen

You can view, comment on, or merge this pull request online at:

  https://github.com/rpm-software-management/rpm/pull/844

-- Commit Summary --

  * Trap division by zero in expression parser

-- File Changes --

M rpmio/expression.c (4)
M tests/rpmmacro.at (2)

-- Patch Links --

https://github.com/rpm-software-management/rpm/pull/844.patch
https://github.com/rpm-software-management/rpm/pull/844.diff

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Re: [Rpm-maint] [rpm-software-management/rpm] Do not allow to divide by 0 in the expression evaluation (#833)

2019-09-18 Thread Panu Matilainen
pmatilai approved this pull request.





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Re: [Rpm-maint] [rpm-software-management/rpm] Trap division by zero in expression parser (#843)

2019-09-18 Thread Panu Matilainen
Closed #843.

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Re: [Rpm-maint] [rpm-software-management/rpm] Do not allow to divide by 0 in the expression evaluation (#833)

2019-09-18 Thread Panu Matilainen
Merged the conflict manually.
Thanks.

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Re: [Rpm-maint] [rpm-software-management/rpm] Do not allow to divide by 0 in the expression evaluation (#833)

2019-09-18 Thread Panu Matilainen
@pmatilai pushed 1 commit.

8ac1d0b720b57b02904108b17e90e81d0a48afff  Merge branch 'master' into divisionnil


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Re: [Rpm-maint] [rpm-software-management/rpm] Trap division by zero in expression parser (#843)

2019-09-18 Thread Panu Matilainen
Reopened #843.

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Re: [Rpm-maint] [rpm-software-management/rpm] Trap division by zero in expression parser (#843)

2019-09-18 Thread Panu Matilainen
Closed #843.

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[Rpm-maint] [rpm-software-management/rpm] Trap division by zero in expression parser (#843)

2019-09-18 Thread Panu Matilainen

You can view, comment on, or merge this pull request online at:

  https://github.com/rpm-software-management/rpm/pull/843

-- Commit Summary --

  * Trap division by zero in expression parser

-- File Changes --

M rpmio/expression.c (4)
M tests/rpmmacro.at (2)

-- Patch Links --

https://github.com/rpm-software-management/rpm/pull/843.patch
https://github.com/rpm-software-management/rpm/pull/843.diff

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Re: [Rpm-maint] [rpm-software-management/rpm] Remove TOK_IDENTIFIER support from expression parsing (#840)

2019-09-18 Thread Panu Matilainen
pmatilai approved this pull request.

Heh, seems you took my remark about being nice rather literally, with "please" 
and all in the message :D 
Anyway, works for me, thanks for the patch!



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Re: [Rpm-maint] [rpm-software-management/rpm] Remove TOK_IDENTIFIER support from expression parsing (#840)

2019-09-18 Thread Panu Matilainen
Merged #840 into master.

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Re: [Rpm-maint] [rpm-software-management/rpm] Do not allow to divide by 0 in the expression evaluation (#833)

2019-09-18 Thread Panu Matilainen
Meh. Error messages are not about telling people what they may or may not do 
when they *just did*. The message should simply be "error: division by zero" 
and no further lecturing on the subject.

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Re: [Rpm-maint] [rpm-software-management/rpm] Remove TOK_IDENTIFIER support from expression parsing (#840)

2019-09-18 Thread Michael Schroeder
@mlschroe pushed 1 commit.

cd764dbd89f56c7714d94d601c70453d1191ac2d  Remove TOK_IDENTIFIER support from 
expression parsing


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Re: [Rpm-maint] [rpm-software-management/rpm] Remove TOK_IDENTIFIER support from expression parsing (#840)

2019-09-18 Thread Michael Schroeder
Right, I'll add a different error message for bare strings.

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Re: [Rpm-maint] [rpm-software-management/rpm] Print an error for expressions with missing operands (#841)

2019-09-18 Thread Michael Schroeder
(Sorry for the bad copy with ``. Seems I patched it correctly when 
I did the change in the fedora chroot I use for testing but then messed it up 
when re-doing it in the git tree.)

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Re: [Rpm-maint] [rpm-software-management/rpm] Remove TOK_IDENTIFIER support from expression parsing (#840)

2019-09-18 Thread Panu Matilainen
FWIW, the amount of breakage in Fedora is on similar level. Like noted, no 
problems with that.

If we want to be nice about it, we could add a warning about it to 4.15, but 
that's another topic.

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Re: [Rpm-maint] [rpm-software-management/rpm] Do not allow to divide by 0 in the expression evaluation (#833)

2019-09-18 Thread pavlinamv
@pavlinamv pushed 1 commit.

8e919739e766840626d17b0891bdc27ac6be776e  Prevent dividing by 0 in the 
expression evaluation


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Re: [Rpm-maint] [rpm-software-management/rpm] Remove TOK_IDENTIFIER support from expression parsing (#840)

2019-09-18 Thread Michael Schroeder
Oh, Panu already decided to go with it. Sorry for the noise ;)

I'll change the message and also do a rebase to fix the conflict.

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Re: [Rpm-maint] [rpm-software-management/rpm] Remove TOK_IDENTIFIER support from expression parsing (#840)

2019-09-18 Thread Michael Schroeder
("Lots" meaning 26 spec files in Factory, which actually isn't that much. If 
Panu decides to drop support for bare strings I'm also fine with that ;) )

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Re: [Rpm-maint] [rpm-software-management/rpm] Remove TOK_IDENTIFIER support from expression parsing (#840)

2019-09-18 Thread Michael Schroeder
So I grepped through the SUSE specs, and it seems we're stuck with bare 
literals. Lots of specs using
things like `%if %llvm == yes` or `%if %{_lib} == lib64` or `%_arch == s390x`.

So I'll redo this pull request so that it keeps that functionality.

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Re: [Rpm-maint] [rpm-software-management/rpm] Fix type error introduced in commit 1d055ae1df90fe54cf5c056de085cd987… (#842)

2019-09-18 Thread Panu Matilainen
Merged #842 into master.

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Re: [Rpm-maint] [rpm-software-management/rpm] Drop slen from builtin macro parser function (#839)

2019-09-18 Thread Panu Matilainen
pmatilai approved this pull request.

Right, I guess the only case where %define/%global can be followed by something 
is the "silent grouping" with {} eg ```rpm --eval "%define foo {bar} 
%{warn:issue}" --eval "%foo"``` and that behavior doesn't change here.



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Re: [Rpm-maint] [rpm-software-management/rpm] Drop slen from builtin macro parser function (#839)

2019-09-18 Thread Panu Matilainen
Merged #839 into master.

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[Rpm-maint] [rpm-software-management/rpm] Fix type error introduced in commit 1d055ae1df90fe54cf5c056de085cd987… (#842)

2019-09-18 Thread Panu Matilainen
…f0f6bbf

state is a pointer in this function, we dont want a pointer to 
it.
Fixes garbage getting printed in the error message. Add a testcase too.
You can view, comment on, or merge this pull request online at:

  https://github.com/rpm-software-management/rpm/pull/842

-- Commit Summary --

  * Fix type error introduced in commit 1d055ae1df90fe54cf5c056de085cd987f0f6bbf

-- File Changes --

M rpmio/expression.c (2)
M tests/rpmmacro.at (2)

-- Patch Links --

https://github.com/rpm-software-management/rpm/pull/842.patch
https://github.com/rpm-software-management/rpm/pull/842.diff

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Re: [Rpm-maint] [rpm-software-management/rpm] Add ternary operator support to expression parser (#838)

2019-09-18 Thread pavlinamv
Thank you. It solves the problem.

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Re: [Rpm-maint] [rpm-software-management/rpm] Remove TOK_IDENTIFIER support from expression parsing (#840)

2019-09-18 Thread Panu Matilainen
Requiring quotes around strings explicitly seems only a good thing to me. And 
since that's how it originally was, only accidentally changed in that commit so 
this is actually a regression fix :)

It does trip up more than just a handful of specs in Fedora, but not a major 
breakage and like noted, easy to fix and the fix is correct everywhere so its 
all for a good cause.

The referenced commit id seems wrong though, the right one seems to be 
3ad99fcba52fcc5e8ab636d2f1760c945cdfbf19. Care to fix that?

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Re: [Rpm-maint] [rpm-software-management/rpm] expression expansion (#834)

2019-09-18 Thread Panu Matilainen
Note that if we add %[] for expressions then I think we should drop %{expr:...} 
entirely, it hardly serves any purpose then.

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Re: [Rpm-maint] [rpm-software-management/rpm] expression expansion (#834)

2019-09-18 Thread Panu Matilainen
I'm thinking that with these new developments, we'd better revert %{expr:..} 
entirely from 4.15, we don't want people adopting it if the behavior is just 
about to change. Pulling it into 4.15 felt a bit hasty anyway, apparently for a 
good reason.

Along with that change I think we can sneak in an added flags argument to those 
patches. This will need an rc2 anyway. 

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Re: [Rpm-maint] [rpm-software-management/rpm] Print an error for expressions with missing operands (#841)

2019-09-18 Thread Panu Matilainen
Merged #841 into master.

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Re: [Rpm-maint] [rpm-software-management/rpm] Print an error for expressions with missing operands (#841)

2019-09-18 Thread Panu Matilainen
Ack. Thanks for the patch.

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Re: [Rpm-maint] [rpm-software-management/rpm] Add 'string' into query format extensions in man-pages (#837)

2019-09-18 Thread Panu Matilainen
Yes, and I'm asking that you mention it is the default format to make people 
aware that it's something they don't need to use. It's basically a side-effect 
of a code cleanup (in commit 2bfc0fad3876bcee0143664cae9f0f0107a86a33), not 
something that ever needed using or advertising.

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Re: [Rpm-maint] [rpm-software-management/rpm] Localize our chroot in/out operations to minimize time spent inside (#836)

2019-09-18 Thread Panu Matilainen
Heaves forbid, no. Not at this point in the release process.

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