summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--apt-pkg/edsp.cc33
-rw-r--r--doc/external-dependency-solver-protocol.txt31
2 files changed, 54 insertions, 10 deletions
diff --git a/apt-pkg/edsp.cc b/apt-pkg/edsp.cc
index ee42267bc..88ad27681 100644
--- a/apt-pkg/edsp.cc
+++ b/apt-pkg/edsp.cc
@@ -18,6 +18,7 @@
#include <apt-pkg/pkgcache.h>
#include <apt-pkg/cacheiterators.h>
#include <apt-pkg/strutl.h>
+#include <apt-pkg/pkgrecords.h>
#include <ctype.h>
#include <stddef.h>
@@ -87,7 +88,12 @@ bool EDSP::WriteLimitedScenario(pkgDepCache &Cache, FILE* output,
void EDSP::WriteScenarioVersion(pkgDepCache &Cache, FILE* output, pkgCache::PkgIterator const &Pkg,
pkgCache::VerIterator const &Ver)
{
+ pkgRecords Recs(Cache);
+ pkgRecords::Parser &rec = Recs.Lookup(Ver.FileList());
+ string srcpkg = rec.SourcePkg().empty() ? Pkg.Name() : rec.SourcePkg();
+
fprintf(output, "Package: %s\n", Pkg.Name());
+ fprintf(output, "Source: %s\n", srcpkg.c_str());
fprintf(output, "Architecture: %s\n", Ver.Arch());
fprintf(output, "Version: %s\n", Ver.VerStr());
if (Pkg.CurrentVer() == Ver)
@@ -107,10 +113,22 @@ void EDSP::WriteScenarioVersion(pkgDepCache &Cache, FILE* output, pkgCache::PkgI
else if ((Ver->MultiArch & pkgCache::Version::Same) == pkgCache::Version::Same)
fprintf(output, "Multi-Arch: same\n");
signed short Pin = std::numeric_limits<signed short>::min();
- for (pkgCache::VerFileIterator File = Ver.FileList(); File.end() == false; ++File) {
- signed short const p = Cache.GetPolicy().GetPriority(File.File());
+ std::set<string> Releases;
+ for (pkgCache::VerFileIterator I = Ver.FileList(); I.end() == false; ++I) {
+ pkgCache::PkgFileIterator File = I.File();
+ signed short const p = Cache.GetPolicy().GetPriority(File);
if (Pin < p)
Pin = p;
+ if ((File->Flags & pkgCache::Flag::NotSource) != pkgCache::Flag::NotSource) {
+ string Release = File.RelStr();
+ if (!Release.empty())
+ Releases.insert(Release);
+ }
+ }
+ if (!Releases.empty()) {
+ fprintf(output, "APT-Release:\n");
+ for (std::set<string>::iterator R = Releases.begin(); R != Releases.end(); ++R)
+ fprintf(output, " %s\n", R->c_str());
}
fprintf(output, "APT-Pin: %d\n", Pin);
if (Cache.GetCandidateVer(Pkg) == Ver)
@@ -231,7 +249,16 @@ bool EDSP::WriteRequest(pkgDepCache &Cache, FILE* output, bool const Upgrade,
continue;
req->append(" ").append(Pkg.FullName());
}
- fprintf(output, "Request: EDSP 0.4\n");
+ fprintf(output, "Request: EDSP 0.5\n");
+
+ const char *arch = _config->Find("APT::Architecture").c_str();
+ std::vector<string> archs = APT::Configuration::getArchitectures();
+ fprintf(output, "Architecture: %s\n", arch);
+ fprintf(output, "Architectures:");
+ for (std::vector<string>::const_iterator a = archs.begin(); a != archs.end(); ++a)
+ fprintf(output, " %s", a->c_str());
+ fprintf(output, "\n");
+
if (del.empty() == false)
fprintf(output, "Remove: %s\n", del.c_str()+1);
if (inst.empty() == false)
diff --git a/doc/external-dependency-solver-protocol.txt b/doc/external-dependency-solver-protocol.txt
index 7a124d8f9..790f2f1ee 100644
--- a/doc/external-dependency-solver-protocol.txt
+++ b/doc/external-dependency-solver-protocol.txt
@@ -1,4 +1,4 @@
-# APT External Dependency Solver Protocol (EDSP) - version 0.4
+# APT External Dependency Solver Protocol (EDSP) - version 0.5
This document describes the communication protocol between APT and
external dependency solvers. The protocol is called APT EDSP, for "APT
@@ -110,16 +110,24 @@ Within a dependency solving scenario, a request represents the action on
installed packages requested by the user.
A request is a single Deb 822 stanza opened by a mandatory Request field
-and followed by a mixture of action and preference fields.
+and followed by a mixture of action, preference, and global
+configuration fields.
The value of the **Request:** field is a string describing the EDSP
protocol which will be used to communicate. At present, the string must
-be `EDSP 0.4`.
+be `EDSP 0.5`. Request fields are mainly used to identify the beginning
+of a request stanza; their actual values are otherwise not used by the
+EDSP protocol.
-a unique request identifier, such as an
-UUID. Request fields are mainly used to identify the beginning of a
-request stanza; their actual values are otherwise not used by the EDSP
-protocol.
+The following **configuration fields** are supported in request stanzas:
+
+- **Architecture:** (mandatory) The name of the *native* architecture on
+ the user machine (see also: `dpkg --print-architecture`)
+
+- **Architectures:** (optional, defaults to the native architecture) A
+ space separated list of *all* architectures known to APT (this is
+ roughly equivalent to the union of `dpkg --print-architecture` and
+ `dpkg --print-foreign-architectures`)
The following **action fields** are supported in request stanzas:
@@ -201,6 +209,15 @@ field. The following fields are supported in package stanzas:
should be removed by the solver only when the Autoremove action is
requested (see Request section).
+- **APT-Release:** (optional) The releases the package belongs to, according to
+ APT. The format of this field is multiline with one value per line and the
+ first line (the one containing the field name) empty. Each subsequent line
+ corresponds to one of the releases the package belongs to and looks like
+ this: `o=Debian,a=unstable,n=sid,l=Debian,c=main`. That is, each release line
+ is a comma-separated list of "key=value" pairs, each of which denotes a
+ Release file entry (Origin, Label, Codename, etc.) in the format of
+ APT_PREFERENCES(5).
+
### Answer
An answer from the external solver to APT is either a *solution* or an