[Rpm-maint] [rpm-software-management/rpm] RFE: Support rpm version comparison in expressions (#1233)

Miro Hrončok notifications at github.com
Tue May 19 13:29:39 UTC 2020


@hroncok commented on this pull request.



> @@ -241,15 +241,17 @@ newline is deleted). Note the 2nd % needed to escape the arguments to
 
 Expression expansion can be performed using "%[expression]".  An
 expression consists of terms that can be combined using
-operators.  Rpm supports two kinds of terms, numbers made up
-from digits and strings enclosed in double quotes.  Rpm will
-expand macros when evaluating terms.
+operators.  Rpm supports three kinds of terms, numbers made up
+from digits, strings enclosed in double quotes (eg "somestring") and
+versions enclosed in double quotes preceded by (eg v"3:1.2-1").

```suggestion
versions enclosed in double quotes preceded by v (eg v"3:1.2-1").
```

>  
 You can use the standard operators to combine terms: logical
 operators &&, ||, !, relational operators !=, ==, <, > , <=, >=,
 arithmetic operators +, -, /, *, the ternary operator ? :, and
 parentheses.  For example, "%[ 3 + 4 * (1 + %two) ]" will expand
-to "15" if "%two" expands to "2".
+to "15" if "%two" expands to "2". Version terms are compared using
+rpm version comparison algorith, rather than regular string comparison.

```suggestion
rpm epoch:version-release comparison algorithm, rather than regular string comparison.
```

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