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b2d3eb5c49
This is a rewrite of the dependency system, It aims to be cleaner
written, with a better idea of what is needed from the start, meaning
less new code being hacked on for things that were not thought about.
This version also aims to use as many small functions as possible, for
cleaner code and better testing.
Added dep.go:
general dependency functions
Added depPool.go:
Replacement of depTree, dependencies were never ordered so
a tree did not really make sense. Instead the term pool
makes more sense.
Added depOrder.go:
Replacement of depCatagories, This simply orders the
dependencies, dependencies are still catagorized as repo and AUR
but I believe this to be a better name
Added depCheck.go:
Replaces conflicts.go and also contains the missing dependency
code
This version is mostly the same as the old version with a few
improvments:
Missing packages will print the full dependency tree
Versioned dependency checking errors should be fixed
Make depends should be calculated properly
Experimental AUR provide searcher
This code has been added along side the old code for testing and is not
currently used by the install process. Once the install process is moved
to use this code, the old code will be removed.
105 lines
1.8 KiB
Go
105 lines
1.8 KiB
Go
package main
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import (
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"fmt"
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"strings"
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alpm "github.com/jguer/go-alpm"
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rpc "github.com/mikkeloscar/aur"
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)
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func splitDep(dep string) (string, string, string) {
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mod := ""
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split := strings.FieldsFunc(dep, func(c rune) bool {
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match := c == '>' || c == '<' || c == '='
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if match {
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mod += string(c)
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}
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return match
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})
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if len(split) == 1 {
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return split[0], "", ""
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}
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return split[0], mod, split[1]
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}
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func pkgSatisfies(name, version, dep string) bool {
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depName, depMod, depVersion := splitDep(dep)
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if depName != name {
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return false
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}
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return verSatisfies(version, depMod, depVersion)
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}
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func provideSatisfies(provide, dep string) bool {
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depName, depMod, depVersion := splitDep(dep)
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provideName, provideMod, provideVersion := splitDep(provide)
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if provideName != depName {
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return false
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}
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// Unversioned provieds can not satisfy a versioned dep
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if provideMod == "" && depMod != "" {
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return false
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}
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return verSatisfies(provideVersion, depMod, depVersion)
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}
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func verSatisfies(ver1, mod, ver2 string) bool {
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switch mod {
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case "=":
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return alpm.VerCmp(ver1, ver2) == 0
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case "<":
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return alpm.VerCmp(ver1, ver2) < 0
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case "<=":
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return alpm.VerCmp(ver1, ver2) <= 0
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case ">":
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return alpm.VerCmp(ver1, ver2) > 0
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case ">=":
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return alpm.VerCmp(ver1, ver2) >= 0
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}
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return true
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}
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func satisfiesAur(dep string, pkg *rpc.Pkg) bool {
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if pkgSatisfies(pkg.Name, pkg.Version, dep) {
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return true
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}
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for _, provide := range pkg.Provides {
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if provideSatisfies(provide, dep) {
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return true
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}
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}
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return false
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}
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func satisfiesRepo(dep string, pkg *alpm.Package) bool {
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if pkgSatisfies(pkg.Name(), pkg.Version(), dep) {
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return true
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}
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if pkg.Provides().ForEach(func(provide alpm.Depend) error {
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if provideSatisfies(provide.String(), dep) {
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return fmt.Errorf("")
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}
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return nil
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}) != nil {
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return true
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}
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return false
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}
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