wroclaw-git-backups/nix
1
0
Fork 0
mirror of https://github.com/NixOS/nix synced 2025-06-27 12:41:15 +02:00
Code Activity

Extract git reference parsing to a shared library

Browse source 
These utility functions can be shared between the git and github fetchers.
This commit is contained in:
Kjetil Orbekk 2022-04-29 18:30:00 -04:00
parent c21afd684c
commit 9bf296c970
4 changed files with 70 additions and 35 deletions
Download patch file Download diff file Expand all files Collapse all files

28
src/libfetchers/github.cc
View file

@ -4,7 +4,7 @@
#include "store-api.hh"
#include "types.hh"
#include "url-parts.hh"
#include "git-utils.hh"
#include "fetchers.hh"
#include "fetch-settings.hh"
@ -383,35 +383,29 @@ struct SourceHutInputScheme : GitArchiveInputScheme
std::string line;
getline(is, line);
auto ref_index = line.find("ref: ");
if (ref_index == std::string::npos) {
auto r = parseListReferenceHeadRef(line);
if (!r) {
throw BadURL("in '%d', couldn't resolve HEAD ref '%d'", input.to_string(), ref);
}
ref_uri = line.substr(ref_index+5, line.length()-1);
} else
ref_uri = *r;
} else {
ref_uri = fmt("refs/(heads|tags)/%s", ref);
}
auto file = store->toRealPath(
downloadFile(store, fmt("%s/info/refs", base_url), "source", false, headers).storePath);
std::ifstream is(file);
std::string line;
std::string id;
while(getline(is, line)) {
// Append $ to avoid partial name matches
std::regex pattern(fmt("%s$", ref_uri));
if (std::regex_search(line, pattern)) {
id = line.substr(0, line.find('\t'));
break;
}
std::optional<std::string> id;
while(!id && getline(is, line)) {
id = parseListReferenceForRev(ref_uri, line);
}
if(id.empty())
if(!id)
throw BadURL("in '%d', couldn't find ref '%d'", input.to_string(), ref);
auto rev = Hash::parseAny(id, htSHA1);
auto rev = Hash::parseAny(*id, htSHA1);
debug("HEAD revision for '%s' is %s", fmt("%s/%s", base_url, ref), rev.gitRev());
return rev;
}