mirror of
https://github.com/privatevoid-net/nix-super.git
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Merge pull request #11494 from bryanhonof/bryanhonof.feat-mixenvironment-set-env
Add flag `set-env-var` to `MixEnvironment`, and rename old ones
This commit is contained in:
Robert Hensing
GitHub
commit
c4f56cb995
5 changed files with 203 additions and 95 deletions
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@ -28,8 +28,6 @@
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''^src/build-remote/build-remote\.cc$''
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''^src/libcmd/built-path\.cc$''
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''^src/libcmd/built-path\.hh$''
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''^src/libcmd/command\.cc$''
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''^src/libcmd/command\.hh$''
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''^src/libcmd/common-eval-args\.cc$''
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''^src/libcmd/common-eval-args\.hh$''
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''^src/libcmd/editor-for\.cc$''
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@ -547,7 +545,6 @@
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''^tests/functional/flakes/absolute-paths\.sh$''
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''^tests/functional/flakes/check\.sh$''
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''^tests/functional/flakes/config\.sh$''
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''^tests/functional/flakes/develop\.sh$''
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''^tests/functional/flakes/flakes\.sh$''
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''^tests/functional/flakes/follow-paths\.sh$''
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''^tests/functional/flakes/prefetch\.sh$''
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@ -1,3 +1,4 @@
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#include <algorithm>
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#include <nlohmann/json.hpp>
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#include "command.hh"
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@ -9,8 +10,7 @@
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#include "profiles.hh"
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#include "repl.hh"
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#include "strings.hh"
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extern char * * environ __attribute__((weak));
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#include "environment-variables.hh"
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namespace nix {
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@ -23,7 +23,8 @@ nix::Commands RegisterCommand::getCommandsFor(const std::vector<std::string> & p
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if (name.size() == prefix.size() + 1) {
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bool equal = true;
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for (size_t i = 0; i < prefix.size(); ++i)
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if (name[i] != prefix[i]) equal = false;
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if (name[i] != prefix[i])
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equal = false;
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if (equal)
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res.insert_or_assign(name[prefix.size()], command);
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}
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@ -42,16 +43,16 @@ void NixMultiCommand::run()
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std::set<std::string> subCommandTextLines;
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for (auto & [name, _] : commands)
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subCommandTextLines.insert(fmt("- `%s`", name));
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std::string markdownError = fmt("`nix %s` requires a sub-command. Available sub-commands:\n\n%s\n",
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commandName, concatStringsSep("\n", subCommandTextLines));
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std::string markdownError =
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fmt("`nix %s` requires a sub-command. Available sub-commands:\n\n%s\n",
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commandName,
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concatStringsSep("\n", subCommandTextLines));
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throw UsageError(renderMarkdownToTerminal(markdownError));
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}
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command->second->run();
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}
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StoreCommand::StoreCommand()
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{
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}
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StoreCommand::StoreCommand() {}
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ref<Store> StoreCommand::getStore()
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{
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@ -126,10 +127,8 @@ ref<Store> EvalCommand::getEvalStore()
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ref<EvalState> EvalCommand::getEvalState()
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{
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if (!evalState) {
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evalState =
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std::allocate_shared<EvalState>(
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traceable_allocator<EvalState>(),
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lookupPath, getEvalStore(), fetchSettings, evalSettings, getStore());
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evalState = std::allocate_shared<EvalState>(
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traceable_allocator<EvalState>(), lookupPath, getEvalStore(), fetchSettings, evalSettings, getStore());
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evalState->repair = repair;
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@ -144,7 +143,8 @@ MixOperateOnOptions::MixOperateOnOptions()
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{
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addFlag({
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.longName = "derivation",
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.description = "Operate on the [store derivation](@docroot@/glossary.md#gloss-store-derivation) rather than its outputs.",
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.description =
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"Operate on the [store derivation](@docroot@/glossary.md#gloss-store-derivation) rather than its outputs.",
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.category = installablesCategory,
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.handler = {&operateOn, OperateOn::Derivation},
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});
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@ -233,46 +233,48 @@ void StorePathCommand::run(ref<Store> store, StorePaths && storePaths)
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MixProfile::MixProfile()
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{
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addFlag({
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.longName = "profile",
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addFlag(
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{.longName = "profile",
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.description = "The profile to operate on.",
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.labels = {"path"},
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.handler = {&profile},
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.completer = completePath
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});
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.completer = completePath});
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}
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void MixProfile::updateProfile(const StorePath & storePath)
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{
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if (!profile) return;
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if (!profile)
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return;
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auto store = getStore().dynamic_pointer_cast<LocalFSStore>();
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if (!store) throw Error("'--profile' is not supported for this Nix store");
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if (!store)
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throw Error("'--profile' is not supported for this Nix store");
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auto profile2 = absPath(*profile);
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switchLink(profile2,
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createGeneration(*store, profile2, storePath));
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switchLink(profile2, createGeneration(*store, profile2, storePath));
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}
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void MixProfile::updateProfile(const BuiltPaths & buildables)
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{
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if (!profile) return;
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if (!profile)
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return;
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StorePaths result;
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for (auto & buildable : buildables) {
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std::visit(overloaded {
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[&](const BuiltPath::Opaque & bo) {
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result.push_back(bo.path);
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},
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std::visit(
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overloaded{
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[&](const BuiltPath::Opaque & bo) { result.push_back(bo.path); },
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[&](const BuiltPath::Built & bfd) {
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for (auto & output : bfd.outputs) {
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result.push_back(output.second);
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}
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},
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}, buildable.raw());
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},
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buildable.raw());
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}
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if (result.size() != 1)
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throw UsageError("'--profile' requires that the arguments produce a single store path, but there are %d", result.size());
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throw UsageError(
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"'--profile' requires that the arguments produce a single store path, but there are %d", result.size());
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updateProfile(result[0]);
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}
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@ -282,51 +284,85 @@ MixDefaultProfile::MixDefaultProfile()
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profile = getDefaultProfile();
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}
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MixEnvironment::MixEnvironment() : ignoreEnvironment(false)
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MixEnvironment::MixEnvironment()
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: ignoreEnvironment(false)
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{
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addFlag({
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.longName = "ignore-environment",
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.longName = "ignore-env",
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.aliases = {"ignore-environment"},
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.shortName = 'i',
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.description = "Clear the entire environment (except those specified with `--keep`).",
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.description = "Clear the entire environment, except for those specified with `--keep-env-var`.",
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.category = environmentVariablesCategory,
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.handler = {&ignoreEnvironment, true},
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});
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addFlag({
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.longName = "keep",
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.longName = "keep-env-var",
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.aliases = {"keep"},
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.shortName = 'k',
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.description = "Keep the environment variable *name*.",
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.description = "Keep the environment variable *name*, when using `--ignore-env`.",
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.category = environmentVariablesCategory,
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.labels = {"name"},
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.handler = {[&](std::string s) { keep.insert(s); }},
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.handler = {[&](std::string s) { keepVars.insert(s); }},
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});
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addFlag({
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.longName = "unset",
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.longName = "unset-env-var",
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.aliases = {"unset"},
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.shortName = 'u',
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.description = "Unset the environment variable *name*.",
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.category = environmentVariablesCategory,
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.labels = {"name"},
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.handler = {[&](std::string s) { unset.insert(s); }},
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.handler = {[&](std::string name) {
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if (setVars.contains(name))
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throw UsageError("Cannot unset environment variable '%s' that is set with '%s'", name, "--set-env-var");
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unsetVars.insert(name);
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}},
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});
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addFlag({
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.longName = "set-env-var",
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.shortName = 's',
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.description = "Sets an environment variable *name* with *value*.",
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.category = environmentVariablesCategory,
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.labels = {"name", "value"},
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.handler = {[&](std::string name, std::string value) {
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if (unsetVars.contains(name))
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throw UsageError(
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"Cannot set environment variable '%s' that is unset with '%s'", name, "--unset-env-var");
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if (setVars.contains(name))
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throw UsageError(
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"Duplicate definition of environment variable '%s' with '%s' is ambiguous", name, "--set-env-var");
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setVars.insert_or_assign(name, value);
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}},
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});
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}
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void MixEnvironment::setEnviron() {
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if (ignoreEnvironment) {
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if (!unset.empty())
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throw UsageError("--unset does not make sense with --ignore-environment");
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void MixEnvironment::setEnviron()
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{
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if (ignoreEnvironment && !unsetVars.empty())
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throw UsageError("--unset-env-var does not make sense with --ignore-env");
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for (const auto & var : keep) {
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auto val = getenv(var.c_str());
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if (val) stringsEnv.emplace_back(fmt("%s=%s", var.c_str(), val));
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}
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if (!ignoreEnvironment && !keepVars.empty())
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throw UsageError("--keep-env-var does not make sense without --ignore-env");
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vectorEnv = stringsToCharPtrs(stringsEnv);
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environ = vectorEnv.data();
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} else {
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if (!keep.empty())
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throw UsageError("--keep does not make sense without --ignore-environment");
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auto env = getEnv();
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for (const auto & var : unset)
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unsetenv(var.c_str());
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}
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if (ignoreEnvironment)
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std::erase_if(env, [&](const auto & var) { return !keepVars.contains(var.first); });
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for (const auto & [name, value] : setVars)
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env[name] = value;
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if (!unsetVars.empty())
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std::erase_if(env, [&](const auto & var) { return unsetVars.contains(var.first); });
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replaceEnv(env);
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return;
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}
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}
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@ -13,7 +13,7 @@ namespace nix {
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extern std::string programPath;
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extern char * * savedArgv;
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extern char ** savedArgv;
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class EvalState;
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struct Pos;
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@ -24,7 +24,8 @@ static constexpr Command::Category catSecondary = 100;
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static constexpr Command::Category catUtility = 101;
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static constexpr Command::Category catNixInstallation = 102;
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static constexpr auto installablesCategory = "Options that change the interpretation of [installables](@docroot@/command-ref/new-cli/nix.md#installables)";
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static constexpr auto installablesCategory =
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"Options that change the interpretation of [installables](@docroot@/command-ref/new-cli/nix.md#installables)";
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struct NixMultiCommand : MultiCommand, virtual Command
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{
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@ -112,7 +113,9 @@ struct MixFlakeOptions : virtual Args, EvalCommand
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* arguments) so that the completions for these flags can use them.
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*/
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virtual std::vector<FlakeRef> getFlakeRefsForCompletion()
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{ return {}; }
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{
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return {};
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}
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};
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struct SourceExprCommand : virtual Args, MixFlakeOptions
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@ -122,11 +125,9 @@ struct SourceExprCommand : virtual Args, MixFlakeOptions
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SourceExprCommand();
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Installables parseInstallables(
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ref<Store> store, std::vector<std::string> ss);
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Installables parseInstallables(ref<Store> store, std::vector<std::string> ss);
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ref<Installable> parseInstallable(
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ref<Store> store, const std::string & installable);
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ref<Installable> parseInstallable(ref<Store> store, const std::string & installable);
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virtual Strings getDefaultFlakeAttrPaths();
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@ -272,10 +273,10 @@ struct RegisterCommand
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typedef std::map<std::vector<std::string>, std::function<ref<Command>()>> Commands;
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static Commands * commands;
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RegisterCommand(std::vector<std::string> && name,
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std::function<ref<Command>()> command)
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RegisterCommand(std::vector<std::string> && name, std::function<ref<Command>()> command)
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{
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if (!commands) commands = new Commands;
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if (!commands)
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commands = new Commands;
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commands->emplace(name, command);
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}
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@ -285,13 +286,13 @@ struct RegisterCommand
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template<class T>
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static RegisterCommand registerCommand(const std::string & name)
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{
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return RegisterCommand({name}, [](){ return make_ref<T>(); });
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return RegisterCommand({name}, []() { return make_ref<T>(); });
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}
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template<class T>
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static RegisterCommand registerCommand2(std::vector<std::string> && name)
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{
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return RegisterCommand(std::move(name), [](){ return make_ref<T>(); });
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return RegisterCommand(std::move(name), []() { return make_ref<T>(); });
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}
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struct MixProfile : virtual StoreCommand
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@ -313,19 +314,21 @@ struct MixDefaultProfile : MixProfile
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MixDefaultProfile();
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};
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struct MixEnvironment : virtual Args {
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struct MixEnvironment : virtual Args
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{
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StringSet keep, unset;
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Strings stringsEnv;
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std::vector<char*> vectorEnv;
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StringSet keepVars;
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StringSet unsetVars;
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std::map<std::string, std::string> setVars;
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bool ignoreEnvironment;
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MixEnvironment();
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/***
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* Modify global environ based on `ignoreEnvironment`, `keep`, and
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* `unset`. It's expected that exec will be called before this class
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* goes out of scope, otherwise `environ` will become invalid.
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* Modify global environ based on `ignoreEnvironment`, `keep`,
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* `unset`, and `added`. It's expected that exec will be called
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* before this class goes out of scope, otherwise `environ` will
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* become invalid.
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*/
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void setEnviron();
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};
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@ -349,9 +352,6 @@ void completeFlakeRefWithFragment(
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std::string showVersions(const std::set<std::string> & versions);
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void printClosureDiff(
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ref<Store> store,
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const StorePath & beforePath,
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const StorePath & afterPath,
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std::string_view indent);
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ref<Store> store, const StorePath & beforePath, const StorePath & afterPath, std::string_view indent);
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}
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|
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@ -13,6 +13,8 @@
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namespace nix {
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static constexpr auto environmentVariablesCategory = "Options that change environment variables";
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/**
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* @return an environment variable.
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*/
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|
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@ -5,11 +5,11 @@ source ../common.sh
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TODO_NixOS
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clearStore
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rm -rf $TEST_HOME/.cache $TEST_HOME/.config $TEST_HOME/.local
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rm -rf "$TEST_HOME/.cache" "$TEST_HOME/.config" "$TEST_HOME/.local"
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# Create flake under test.
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cp ../shell-hello.nix "${config_nix}" $TEST_HOME/
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cat <<EOF >$TEST_HOME/flake.nix
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cp ../shell-hello.nix "$config_nix" "$TEST_HOME/"
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cat <<EOF >"$TEST_HOME/flake.nix"
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{
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inputs.nixpkgs.url = "$TEST_HOME/nixpkgs";
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outputs = {self, nixpkgs}: {
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@ -24,13 +24,13 @@ cat <<EOF >$TEST_HOME/flake.nix
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EOF
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# Create fake nixpkgs flake.
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mkdir -p $TEST_HOME/nixpkgs
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cp "${config_nix}" ../shell.nix $TEST_HOME/nixpkgs
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mkdir -p "$TEST_HOME/nixpkgs"
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cp "${config_nix}" ../shell.nix "$TEST_HOME/nixpkgs"
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# `config.nix` cannot be gotten via build dir / env var (runs afoul pure eval). Instead get from flake.
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removeBuildDirRef "$TEST_HOME/nixpkgs"/*.nix
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cat <<EOF >$TEST_HOME/nixpkgs/flake.nix
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cat <<EOF >"$TEST_HOME/nixpkgs/flake.nix"
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{
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outputs = {self}: {
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legacyPackages.$system.bashInteractive = (import ./shell.nix {}).bashInteractive;
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|
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@ -38,7 +38,7 @@ cat <<EOF >$TEST_HOME/nixpkgs/flake.nix
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}
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EOF
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cd $TEST_HOME
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cd "$TEST_HOME"
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# Test whether `nix develop` passes through environment variables.
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[[ "$(
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@ -47,13 +47,86 @@ echo "\$ENVVAR"
|
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EOF
|
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)" = "a" ]]
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# Test whether `nix develop --ignore-environment` does _not_ pass through environment variables.
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# Test whether `nix develop --ignore-env` does _not_ pass through environment variables.
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[[ -z "$(
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ENVVAR=a nix develop --ignore-environment --no-write-lock-file .#hello <<EOF
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ENVVAR=a nix develop --ignore-env --no-write-lock-file .#hello <<EOF
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echo "\$ENVVAR"
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EOF
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)" ]]
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# Test wether `--keep-env-var` keeps the environment variable.
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(
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expect='BAR'
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got="$(FOO='BAR' nix develop --ignore-env --keep-env-var FOO --no-write-lock-file .#hello <<EOF
|
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echo "\$FOO"
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||||
EOF
|
||||
)"
|
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[[ "$got" == "$expect" ]]
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)
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||||
|
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# Test wether duplicate `--keep-env-var` keeps the environment variable.
|
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(
|
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expect='BAR'
|
||||
got="$(FOO='BAR' nix develop --ignore-env --keep-env-var FOO --keep-env-var FOO --no-write-lock-file .#hello <<EOF
|
||||
echo "\$FOO"
|
||||
EOF
|
||||
)"
|
||||
[[ "$got" == "$expect" ]]
|
||||
)
|
||||
|
||||
# Test wether `--set-env-var` sets the environment variable.
|
||||
(
|
||||
expect='BAR'
|
||||
got="$(nix develop --ignore-env --set-env-var FOO 'BAR' --no-write-lock-file .#hello <<EOF
|
||||
echo "\$FOO"
|
||||
EOF
|
||||
)"
|
||||
[[ "$got" == "$expect" ]]
|
||||
)
|
||||
|
||||
# Test that `--set-env-var` overwrites previously set variables.
|
||||
(
|
||||
expect='BLA'
|
||||
got="$(FOO='BAR' nix develop --set-env-var FOO 'BLA' --no-write-lock-file .#hello <<EOF
|
||||
echo "\$FOO"
|
||||
EOF
|
||||
)"
|
||||
[[ "$got" == "$expect" ]]
|
||||
)
|
||||
|
||||
# Test that multiple `--set-env-var` work.
|
||||
(
|
||||
expect='BARFOO'
|
||||
got="$(nix develop --set-env-var FOO 'BAR' --set-env-var BAR 'FOO' --no-write-lock-file .#hello <<EOF | tr -d '\n'
|
||||
echo "\$FOO"
|
||||
echo "\$BAR"
|
||||
EOF
|
||||
)"
|
||||
[[ "$got" == "$expect" ]]
|
||||
)
|
||||
|
||||
# Check that we throw an error when `--keep-env-var` is used without `--ignore-env`.
|
||||
expectStderr 1 nix develop --keep-env-var FOO .#hello |
|
||||
grepQuiet "error: --keep-env-var does not make sense without --ignore-env"
|
||||
|
||||
# Check that we throw an error when `--unset-env-var` is used with `--ignore-env`.
|
||||
expectStderr 1 nix develop --ignore-env --unset-env-var FOO .#hello |
|
||||
grepQuiet "error: --unset-env-var does not make sense with --ignore-env"
|
||||
|
||||
# Test wether multiple occurances of `--set-env-var` throws.
|
||||
expectStderr 1 nix develop --set-env-var FOO 'BAR' --set-env-var FOO 'BLA' --no-write-lock-file .#hello |
|
||||
grepQuiet "error: Duplicate definition of environment variable 'FOO' with '--set-env-var' is ambiguous"
|
||||
|
||||
# Test wether similar `--unset-env-var` and `--set-env-var` throws.
|
||||
expectStderr 1 nix develop --set-env-var FOO 'BAR' --unset-env-var FOO --no-write-lock-file .#hello |
|
||||
grepQuiet "error: Cannot unset environment variable 'FOO' that is set with '--set-env-var'"
|
||||
|
||||
expectStderr 1 nix develop --unset-env-var FOO --set-env-var FOO 'BAR' --no-write-lock-file .#hello |
|
||||
grepQuiet "error: Cannot set environment variable 'FOO' that is unset with '--unset-env-var'"
|
||||
|
||||
# Check that multiple `--ignore-env`'s are okay.
|
||||
expectStderr 0 nix develop --ignore-env --set-env-var FOO 'BAR' --ignore-env .#hello
|
||||
|
||||
# Determine the bashInteractive executable.
|
||||
nix build --no-write-lock-file './nixpkgs#bashInteractive' --out-link ./bash-interactive
|
||||
BASH_INTERACTIVE_EXECUTABLE="$PWD/bash-interactive/bin/bash"
|
||||
|
|
@ -67,7 +140,7 @@ EOF
|
|||
|
||||
# Test whether `nix develop` with ignore environment sets `SHELL` to nixpkgs#bashInteractive shell.
|
||||
[[ "$(
|
||||
SHELL=custom nix develop --ignore-environment --no-write-lock-file .#hello <<EOF
|
||||
SHELL=custom nix develop --ignore-env --no-write-lock-file .#hello <<EOF
|
||||
echo "\$SHELL"
|
||||
EOF
|
||||
)" -ef "$BASH_INTERACTIVE_EXECUTABLE" ]]
|
||||
|
|
|
|||
Loading…
Reference in a new issue