diff options
Diffstat (limited to 'third_party/nix/src/libstore/builtins')
| -rw-r--r-- | third_party/nix/src/libstore/builtins/buildenv.cc | 44 | ||||
| -rw-r--r-- | third_party/nix/src/libstore/builtins/fetchurl.cc | 18 |
2 files changed, 40 insertions, 22 deletions
diff --git a/third_party/nix/src/libstore/builtins/buildenv.cc b/third_party/nix/src/libstore/builtins/buildenv.cc index 95f915227bb1..9413c4b03635 100644 --- a/third_party/nix/src/libstore/builtins/buildenv.cc +++ b/third_party/nix/src/libstore/builtins/buildenv.cc @@ -35,15 +35,17 @@ static void createLinks(const Path& srcDir, const Path& dstDir, int priority) { } for (const auto& ent : srcFiles) { - if (ent.name[0] == '.') /* not matched by glob */ + if (ent.name[0] == '.') { /* not matched by glob */ continue; + } auto srcFile = srcDir + "/" + ent.name; auto dstFile = dstDir + "/" + ent.name; - struct stat srcSt; + struct stat srcSt {}; try { - if (stat(srcFile.c_str(), &srcSt) == -1) + if (stat(srcFile.c_str(), &srcSt) == -1) { throw SysError("getting status of '%1%'", srcFile); + } } catch (SysError& e) { if (e.errNo == ENOENT || e.errNo == ENOTDIR) { LOG(ERROR) << "warning: skipping dangling symlink '" << dstFile << "'"; @@ -61,11 +63,12 @@ static void createLinks(const Path& srcDir, const Path& dstDir, int priority) { if (absl::EndsWith(srcFile, "/propagated-build-inputs") || absl::EndsWith(srcFile, "/nix-support") || absl::EndsWith(srcFile, "/perllocal.pod") || - absl::EndsWith(srcFile, "/info/dir") || absl::EndsWith(srcFile, "/log")) + absl::EndsWith(srcFile, "/info/dir") || + absl::EndsWith(srcFile, "/log")) { continue; - else if (S_ISDIR(srcSt.st_mode)) { - struct stat dstSt; + } else if (S_ISDIR(srcSt.st_mode)) { + struct stat dstSt {}; auto res = lstat(dstFile.c_str(), &dstSt); if (res == 0) { if (S_ISDIR(dstSt.st_mode)) { @@ -73,45 +76,53 @@ static void createLinks(const Path& srcDir, const Path& dstDir, int priority) { continue; } else if (S_ISLNK(dstSt.st_mode)) { auto target = canonPath(dstFile, true); - if (!S_ISDIR(lstat(target).st_mode)) + if (!S_ISDIR(lstat(target).st_mode)) { throw Error("collision between '%1%' and non-directory '%2%'", srcFile, target); - if (unlink(dstFile.c_str()) == -1) + } + if (unlink(dstFile.c_str()) == -1) { throw SysError(format("unlinking '%1%'") % dstFile); - if (mkdir(dstFile.c_str(), 0755) == -1) + } + if (mkdir(dstFile.c_str(), 0755) == -1) { throw SysError(format("creating directory '%1%'")); + } createLinks(target, dstFile, priorities[dstFile]); createLinks(srcFile, dstFile, priority); continue; } - } else if (errno != ENOENT) + } else if (errno != ENOENT) { throw SysError(format("getting status of '%1%'") % dstFile); + } } else { - struct stat dstSt; + struct stat dstSt {}; auto res = lstat(dstFile.c_str(), &dstSt); if (res == 0) { if (S_ISLNK(dstSt.st_mode)) { auto prevPriority = priorities[dstFile]; - if (prevPriority == priority) + if (prevPriority == priority) { throw Error( "packages '%1%' and '%2%' have the same priority %3%; " "use 'nix-env --set-flag priority NUMBER INSTALLED_PKGNAME' " "to change the priority of one of the conflicting packages" " (0 being the highest priority)", srcFile, readLink(dstFile), priority); + } if (prevPriority < priority) { continue; } - if (unlink(dstFile.c_str()) == -1) + if (unlink(dstFile.c_str()) == -1) { throw SysError(format("unlinking '%1%'") % dstFile); - } else if (S_ISDIR(dstSt.st_mode)) + } + } else if (S_ISDIR(dstSt.st_mode)) { throw Error( "collision between non-directory '%1%' and directory '%2%'", srcFile, dstFile); - } else if (errno != ENOENT) + } + } else if (errno != ENOENT) { throw SysError(format("getting status of '%1%'") % dstFile); + } } createSymlink(srcFile, dstFile); @@ -201,10 +212,11 @@ void builtinBuildenv(const BasicDerivation& drv) { return a.priority < b.priority || (a.priority == b.priority && a.path < b.path); }); - for (const auto& pkg : pkgs) + for (const auto& pkg : pkgs) { if (pkg.active) { addPkg(pkg.path, pkg.priority); } + } /* Symlink to the packages that have been "propagated" by packages * installed by the user (i.e., package X declares that it wants Y diff --git a/third_party/nix/src/libstore/builtins/fetchurl.cc b/third_party/nix/src/libstore/builtins/fetchurl.cc index 867a120e8d4a..f7857b543d55 100644 --- a/third_party/nix/src/libstore/builtins/fetchurl.cc +++ b/third_party/nix/src/libstore/builtins/fetchurl.cc @@ -20,8 +20,9 @@ void builtinFetchurl(const BasicDerivation& drv, const std::string& netrcData) { auto getAttr = [&](const std::string& name) { auto i = drv.env.find(name); - if (i == drv.env.end()) + if (i == drv.env.end()) { throw Error(format("attribute '%s' missing") % name); + } return i->second; }; @@ -47,21 +48,24 @@ void builtinFetchurl(const BasicDerivation& drv, const std::string& netrcData) { decompressor->finish(); }); - if (unpack) + if (unpack) { restorePath(storePath, *source); - else + } else { writeFile(storePath, *source); + } auto executable = drv.env.find("executable"); if (executable != drv.env.end() && executable->second == "1") { - if (chmod(storePath.c_str(), 0755) == -1) + if (chmod(storePath.c_str(), 0755) == -1) { throw SysError(format("making '%1%' executable") % storePath); + } } }; /* Try the hashed mirrors first. */ - if (getAttr("outputHashMode") == "flat") - for (auto hashedMirror : settings.hashedMirrors.get()) try { + if (getAttr("outputHashMode") == "flat") { + for (auto hashedMirror : settings.hashedMirrors.get()) { + try { if (!absl::EndsWith(hashedMirror, "/")) { hashedMirror += '/'; } @@ -73,6 +77,8 @@ void builtinFetchurl(const BasicDerivation& drv, const std::string& netrcData) { } catch (Error& e) { LOG(ERROR) << e.what(); } + } + } /* Otherwise try the specified URL. */ fetch(mainUrl); |