diff options
Diffstat (limited to 'src/libexpr/primops/fetchMercurial.cc')
| -rw-r--r-- | src/libexpr/primops/fetchMercurial.cc | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/src/libexpr/primops/fetchMercurial.cc b/src/libexpr/primops/fetchMercurial.cc index a75c5fc2ddff..66f49f374321 100644 --- a/src/libexpr/primops/fetchMercurial.cc +++ b/src/libexpr/primops/fetchMercurial.cc @@ -27,7 +27,7 @@ std::regex commitHashRegex("^[0-9a-fA-F]{40}$"); HgInfo exportMercurial(ref<Store> store, const std::string & uri, std::string rev, const std::string & name) { - if (settings.pureEval && rev == "") + if (evalSettings.pureEval && rev == "") throw Error("in pure evaluation mode, 'fetchMercurial' requires a Mercurial revision"); if (rev == "" && hasPrefix(uri, "/") && pathExists(uri + "/.hg")) { @@ -93,7 +93,22 @@ HgInfo exportMercurial(ref<Store> store, const std::string & uri, Activity act(*logger, lvlTalkative, actUnknown, fmt("fetching Mercurial repository '%s'", uri)); if (pathExists(cacheDir)) { - runProgram("hg", true, { "pull", "-R", cacheDir, "--", uri }); + try { + runProgram("hg", true, { "pull", "-R", cacheDir, "--", uri }); + } + catch (ExecError & e){ + string transJournal = cacheDir + "/.hg/store/journal"; + /* hg throws "abandoned transaction" error only if this file exists */ + if (pathExists(transJournal)) + { + runProgram("hg", true, { "recover", "-R", cacheDir }); + runProgram("hg", true, { "pull", "-R", cacheDir, "--", uri }); + } + else + { + throw ExecError(e.status, fmt("program hg '%1%' ", statusToString(e.status))); + } + } } else { createDirs(dirOf(cacheDir)); runProgram("hg", true, { "clone", "--noupdate", "--", uri, cacheDir }); @@ -184,8 +199,6 @@ static void prim_fetchMercurial(EvalState & state, const Pos & pos, Value * * ar } else url = state.coerceToString(pos, *args[0], context, false, false); - if (!isUri(url)) url = absPath(url); - // FIXME: git externals probably can be used to bypass the URI // whitelist. Ah well. state.checkURI(url); |