diff options
Diffstat (limited to 'apt-pkg/depcache.cc')
| -rw-r--r-- | apt-pkg/depcache.cc | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/apt-pkg/depcache.cc b/apt-pkg/depcache.cc index e3e8d627c..76a5c09ba 100644 --- a/apt-pkg/depcache.cc +++ b/apt-pkg/depcache.cc @@ -42,6 +42,7 @@ #include <unordered_map> #include <utility> #include <vector> +#include <dirent.h> #include <sys/stat.h> @@ -2613,3 +2614,58 @@ bool pkgDepCache::PhasingApplied(pkgCache::PkgIterator Pkg) const return true; } /*}}}*/ + +// DepCache::BootSize /*{{{*/ +double pkgDepCache::BootSize(bool initrdOnly) +{ + double BootSize = 0; + int BootCount = 0; + auto VirtualKernelPkg = FindPkg("$kernel", "any"); + if (VirtualKernelPkg.end()) + return 0; + + for (pkgCache::PrvIterator Prv = VirtualKernelPkg.ProvidesList(); Prv.end() == false; ++Prv) + { + auto Pkg = Prv.OwnerPkg(); + if ((*this)[Pkg].NewInstall()) + BootSize += (*this)[Pkg].InstallVer->InstalledSize, BootCount++; + } + if (BootCount == 0) + return 0; + if (initrdOnly) + BootSize = 0; + + DIR *boot = opendir(_config->FindDir("Dir::Boot").c_str()); + struct dirent *ent; + if (boot) + { + double initrdSize = 0; + double mapSize = 0; + while ((ent = readdir(boot))) + { + enum + { + INITRD, + MAP + } type; + if (APT::String::Startswith(ent->d_name, "initrd.img-")) + type = INITRD; + else if (APT::String::Startswith(ent->d_name, "System.map-")) + type = MAP; + else + continue; + + auto path = _config->FindDir("Dir::Boot") + ent->d_name; + + if (struct stat st; stat(path.c_str(), &st) == 0) + { + double &targetSize = type == INITRD ? initrdSize : mapSize; + targetSize = std::max(targetSize, double(st.st_size)); + } + } + closedir(boot); + return initrdSize ? BootSize + BootCount * (initrdSize + mapSize) * 1.1 : 0; + } + return 0; +} + /*}}}*/ |