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nix upgrade-nix: Handle .nix-profile being a link to .../profiles/per-user/...

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Also some cosmetic improvements.

(cherry picked from commit 39f1722f36)
This commit is contained in:
Eelco Dolstra 2018-08-30 21:18:56 +02:00
parent f8fbab43f2
commit b7a37ab5f2
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GPG Key ID: 8170B4726D7198DE
2 changed files with 24 additions and 14 deletions
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4
release.nix
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@ -241,6 +241,7 @@ let
{ diskImage = vmTools.diskImages.ubuntu1204x86_64;
}
''
set -x
useradd -m alice
su - alice -c 'tar xf ${binaryTarball.x86_64-linux}/*.tar.*'
mkdir /dest-nix
@ -251,14 +252,13 @@ let
su - alice -c 'PAGER= nix-store -qR ${build.x86_64-linux}'
# Check whether 'nix upgrade-nix' works.
(! [ -L /nix/var/nix/profiles/per-user/alice/profile-2-link ])
cat > /tmp/paths.nix <<EOF
{
x86_64-linux = "${build.x86_64-linux}";
}
EOF
su - alice -c 'nix upgrade-nix -vvv --nix-store-paths-url file:///tmp/paths.nix'
[ -L /nix/var/nix/profiles/per-user/alice/profile-2-link ]
(! [ -L /home/alice/.profile-1-link ])
su - alice -c 'PAGER= nix-store -qR ${build.x86_64-linux}'
mkdir -p $out/nix-support

34
src/nix/upgrade-nix.cc
View File

@ -4,6 +4,8 @@
#include "download.hh"
#include "eval.hh"
#include "attr-path.hh"
#include "names.hh"
#include "progress-bar.hh"
using namespace nix;
@ -67,28 +69,36 @@ struct CmdUpgradeNix : MixDryRun, StoreCommand
storePath = getLatestNix(store);
}
auto version = DrvName(storePathToName(storePath)).version;
if (dryRun) {
stopProgressBar();
printError("would upgrade to version %s", version);
return;
}
{
Activity act(*logger, lvlInfo, actUnknown, fmt("downloading '%s'...", storePath));
if (!dryRun)
store->ensurePath(storePath);
store->ensurePath(storePath);
}
{
Activity act(*logger, lvlInfo, actUnknown, fmt("verifying that '%s' works...", storePath));
if (!dryRun) {
auto program = storePath + "/bin/nix-env";
auto s = runProgram(program, false, {"--version"});
if (s.find("Nix") == std::string::npos)
throw Error("could not verify that '%s' works", program);
}
auto program = storePath + "/bin/nix-env";
auto s = runProgram(program, false, {"--version"});
if (s.find("Nix") == std::string::npos)
throw Error("could not verify that '%s' works", program);
}
stopProgressBar();
{
Activity act(*logger, lvlInfo, actUnknown, fmt("installing '%s' into profile '%s'...", storePath, profileDir));
if (!dryRun)
runProgram(settings.nixBinDir + "/nix-env", false,
{"--profile", profileDir, "-i", storePath, "--no-sandbox"});
runProgram(settings.nixBinDir + "/nix-env", false,
{"--profile", profileDir, "-i", storePath, "--no-sandbox"});
}
printError(ANSI_GREEN "upgrade to version %s done" ANSI_NORMAL, version);
}
/* Return the profile in which Nix is installed. */
@ -113,7 +123,7 @@ struct CmdUpgradeNix : MixDryRun, StoreCommand
Path profileDir = dirOf(where);
// Resolve profile to /nix/var/nix/profiles/<name> link.
while (baseNameOf(dirOf(canonPath(profileDir))) != "profiles" && isLink(profileDir))
while (canonPath(profileDir).find("/profiles/") == std::string::npos && isLink(profileDir))
profileDir = readLink(profileDir);
printInfo("found profile '%s'", profileDir);