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|
package main
import (
"fmt"
"log"
"os"
"regexp"
"strings"
)
const MISSING_PKGCONF_DEPENDENCY_TAG = "missing-pkgconfig-dependency"
type pkgconfErr struct {
debPkg string
pkg string
missingDep string
}
func (p pkgconfErr) Error() string {
return fmt.Sprintf("%s: %s %s => %s", p.debPkg, MISSING_PKGCONF_DEPENDENCY_TAG, p.pkg, p.missingDep)
}
type pkgconfDepChecker struct {
emit bool
}
func newPkgconfDepChecker(tags tagFilter) pkgconfDepChecker {
return pkgconfDepChecker{
emit: tags.shouldEmit(MISSING_PKGCONF_DEPENDENCY_TAG),
}
}
func (pd pkgconfDepChecker) check(pkg2files map[string][]string) []error {
if !pd.emit || !pathExists("/usr/bin/pkgconf") {
return nil
}
ignorePath := regexp.MustCompile("^(/usr/(?:share|lib(?:/[^/]+)?)/pkgconfig/)([^/]+)[.]pc$")
// pkgs maps from a pc name to a binary package name. The pc name
// maps to a source package but does not necessarily match the source
// package name.
pkgs := make(map[string]string)
pkgCfgPaths := newStringSet()
for debPkg, files := range pkg2files {
for _, f := range files {
m := ignorePath.FindStringSubmatch(f)
if len(m) < 3 {
continue
}
pkgCfgPaths.add(m[1])
pkg := m[2]
pkgs[pkg] = debPkg
}
}
if err := os.Setenv("PKG_CONFIG_PATH", pkgCfgPaths.String()); err != nil {
verboseLog(fmt.Sprintf(
"Skipping %s checks: unable to set environment variable PKG_CONFIG_PATH",
MISSING_PKGCONF_DEPENDENCY_TAG))
return nil
}
var tags []error
for pkg, debPkg := range pkgs {
out, err := runCommand(append(
strings.Split("/usr/bin/pkgconf --exists --print-errors", " "), pkg))
if err == nil {
continue
}
missingPkg := regexp.MustCompile("Package '(.+)', required by '" + pkg + "', not found")
m := missingPkg.FindStringSubmatch(strings.Join(out, " "))
if len(m) < 2 {
log.Fatalf("Unexpected pkgconf output: %v", out)
}
depPkg := m[1]
tags = append(tags, pkgconfErr{
debPkg: debPkg,
pkg: pkg,
missingDep: string(depPkg),
})
}
return tags
}
|
