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-rw-r--r--src/nix-env/Makefile.am3
-rw-r--r--src/nix-env/help.txt4
-rw-r--r--src/nix-env/main.cc88
3 files changed, 51 insertions, 44 deletions
diff --git a/src/nix-env/Makefile.am b/src/nix-env/Makefile.am
index bfe7369c6..5353a7a6b 100644
--- a/src/nix-env/Makefile.am
+++ b/src/nix-env/Makefile.am
@@ -14,3 +14,6 @@ main.o: help.txt.hh
AM_CXXFLAGS = \
-I.. -I../../externals/inst/include -I../libutil -I../libstore \
-I../libexpr -I../libmain
+
+install-data-local:
+ $(INSTALL) -d $(DESTDIR)$(localstatedir)/nix/profiles
diff --git a/src/nix-env/help.txt b/src/nix-env/help.txt
index f1419cdf7..3832f1655 100644
--- a/src/nix-env/help.txt
+++ b/src/nix-env/help.txt
@@ -12,7 +12,7 @@ Operations:
The previous operations take a list of derivation names. The special
name `*' may be used to indicate all derivations.
- --profile / -p [FILE]: switch to specified user environment
+ --switch-profile / -S [FILE]: switch to specified profile
--import / -I FILE: set default Nix expression
--version: output version information
@@ -31,7 +31,7 @@ Query sources:
Options:
- --link / -l LINK: use symlink LINK instead of (...)/current
+ --profile / -p LINK: use specified profile instead of target of ~/.nix-profile
--file / -f FILE: use Nix expression FILE for installation, etc.
--verbose / -v: verbose operation (may be repeated)
--keep-failed / -K: keep temporary directories of failed builds
diff --git a/src/nix-env/main.cc b/src/nix-env/main.cc
index 3810e9144..20b7da655 100644
--- a/src/nix-env/main.cc
+++ b/src/nix-env/main.cc
@@ -10,7 +10,7 @@
struct Globals
{
- Path linkPath;
+ Path profile;
Path nixExprPath;
EvalState state;
};
@@ -116,12 +116,6 @@ static Path getHomeDir()
}
-static Path getLinksDir()
-{
- return canonPath(nixStateDir + "/links");
-}
-
-
static Path getDefNixExprPath()
{
return getHomeDir() + "/.nix-defexpr";
@@ -143,23 +137,30 @@ void queryInstalled(EvalState & state, DrvInfos & drvs,
}
-Path createGeneration(Path outPath, Path drvPath)
+Path createGeneration(Path profile, Path outPath, Path drvPath)
{
- Path linksDir = getLinksDir();
-
+ Path profileDir = dirOf(profile);
+ string profileName = baseNameOf(profile);
+
unsigned int num = 0;
- Strings names = readDirectory(linksDir);
+ Strings names = readDirectory(profileDir);
for (Strings::iterator i = names.begin(); i != names.end(); ++i) {
- istringstream s(*i);
- unsigned int n;
- if (s >> n && s.eof() && n >= num) num = n + 1;
+ if (string(*i, 0, profileName.size() + 1) != profileName + "-") continue;
+ string s = string(*i, profileName.size() + 1);
+ int p = s.find("-link");
+ if (p == string::npos) continue;
+ istringstream str(string(s, 0, p));
+ unsigned int n;
+ if (str >> n && str.eof() && n >= num) num = n + 1;
}
- Path generation;
+ Path generation, gcrootSrc;
while (1) {
- generation = (format("%1%/%2%") % linksDir % num).str();
+ Path prefix = (format("%1%-%2%") % profile % num).str();
+ generation = prefix + "-link";
+ gcrootSrc = prefix + "-src.gcroot";
if (symlink(outPath.c_str(), generation.c_str()) == 0) break;
if (errno != EEXIST)
throw SysError(format("creating symlink `%1%'") % generation);
@@ -167,7 +168,7 @@ Path createGeneration(Path outPath, Path drvPath)
num++;
}
- writeStringToFile(generation + "-src.id", drvPath);
+ writeStringToFile(gcrootSrc, drvPath);
return generation;
}
@@ -175,6 +176,9 @@ Path createGeneration(Path outPath, Path drvPath)
void switchLink(Path link, Path target)
{
+ /* Hacky. */
+ if (dirOf(target) == dirOf(link)) target = baseNameOf(target);
+
Path tmp = canonPath(dirOf(link) + "/.new_" + baseNameOf(link));
if (symlink(target.c_str(), tmp.c_str()) != 0)
throw SysError(format("creating symlink `%1%'") % tmp);
@@ -190,7 +194,7 @@ void switchLink(Path link, Path target)
void createUserEnv(EvalState & state, const DrvInfos & drvs,
- const Path & linkPath)
+ const Path & profile)
{
/* Get the environment builder expression. */
Expr envBuilder = parseExprFromFile(state,
@@ -243,9 +247,9 @@ void createUserEnv(EvalState & state, const DrvInfos & drvs,
/* Switch the current user environment to the output path. */
debug(format("switching to new user environment"));
- Path generation = createGeneration(
+ Path generation = createGeneration(profile,
topLevelDrv.outPath, topLevelDrv.drvPath);
- switchLink(linkPath, generation);
+ switchLink(profile, generation);
}
@@ -380,7 +384,7 @@ static DrvNames drvNamesFromArgs(const Strings & opArgs)
static void installDerivations(EvalState & state,
- Path nePath, DrvNames & selectors, const Path & linkPath)
+ Path nePath, DrvNames & selectors, const Path & profile)
{
debug(format("installing derivations from `%1%'") % nePath);
@@ -415,10 +419,10 @@ static void installDerivations(EvalState & state,
/* Add in the already installed derivations. */
DrvInfos installedDrvs;
- queryInstalled(state, installedDrvs, linkPath);
+ queryInstalled(state, installedDrvs, profile);
selectedDrvs.insert(installedDrvs.begin(), installedDrvs.end());
- createUserEnv(state, selectedDrvs, linkPath);
+ createUserEnv(state, selectedDrvs, profile);
}
@@ -431,12 +435,12 @@ static void opInstall(Globals & globals,
DrvNames drvNames = drvNamesFromArgs(opArgs);
installDerivations(globals.state, globals.nixExprPath,
- drvNames, globals.linkPath);
+ drvNames, globals.profile);
}
static void upgradeDerivations(EvalState & state,
- Path nePath, DrvNames & selectors, const Path & linkPath)
+ Path nePath, DrvNames & selectors, const Path & profile)
{
debug(format("upgrading derivations from `%1%'") % nePath);
@@ -447,7 +451,7 @@ static void upgradeDerivations(EvalState & state,
/* Load the currently installed derivations. */
DrvInfos installedDrvs;
- queryInstalled(state, installedDrvs, linkPath);
+ queryInstalled(state, installedDrvs, profile);
/* Fetch all derivations from the input file. */
DrvInfos availDrvs;
@@ -496,7 +500,7 @@ static void upgradeDerivations(EvalState & state,
newDrvs.insert(*bestDrv);
}
- createUserEnv(state, newDrvs, linkPath);
+ createUserEnv(state, newDrvs, profile);
}
@@ -510,15 +514,15 @@ static void opUpgrade(Globals & globals,
DrvNames drvNames = drvNamesFromArgs(opArgs);
upgradeDerivations(globals.state, globals.nixExprPath,
- drvNames, globals.linkPath);
+ drvNames, globals.profile);
}
static void uninstallDerivations(EvalState & state, DrvNames & selectors,
- Path & linkPath)
+ Path & profile)
{
DrvInfos installedDrvs;
- queryInstalled(state, installedDrvs, linkPath);
+ queryInstalled(state, installedDrvs, profile);
for (DrvInfos::iterator i = installedDrvs.begin();
i != installedDrvs.end(); ++i)
@@ -533,7 +537,7 @@ static void uninstallDerivations(EvalState & state, DrvNames & selectors,
}
}
- createUserEnv(state, installedDrvs, linkPath);
+ createUserEnv(state, installedDrvs, profile);
}
@@ -545,7 +549,7 @@ static void opUninstall(Globals & globals,
DrvNames drvNames = drvNamesFromArgs(opArgs);
- uninstallDerivations(globals.state, drvNames, globals.linkPath);
+ uninstallDerivations(globals.state, drvNames, globals.profile);
}
@@ -576,7 +580,7 @@ static void opQuery(Globals & globals,
switch (source) {
case sInstalled:
- queryInstalled(globals.state, drvs, globals.linkPath);
+ queryInstalled(globals.state, drvs, globals.profile);
break;
case sAvailable: {
@@ -612,7 +616,7 @@ static void opQuery(Globals & globals,
case qStatus: {
DrvInfos installed;
- queryInstalled(globals.state, installed, globals.linkPath);
+ queryInstalled(globals.state, installed, globals.profile);
PathSet installedPaths; /* output paths of installed drvs */
for (DrvInfos::iterator i = installed.begin();
@@ -644,11 +648,11 @@ static void opSwitchProfile(Globals & globals,
if (opArgs.size() > 1)
throw UsageError(format("`--profile' takes at most one argument"));
- Path linkPath =
- absPath(opArgs.size() == 0 ? globals.linkPath : opArgs.front());
- Path linkPathFinal = getHomeDir() + "/.nix-userenv";
+ Path profile =
+ absPath(opArgs.size() == 0 ? globals.profile : opArgs.front());
+ Path profileLink = getHomeDir() + "/.nix-userenv";
- switchLink(linkPathFinal, linkPath);
+ switchLink(profileLink, profile);
}
@@ -676,7 +680,7 @@ void run(Strings args)
Operation op = 0;
Globals globals;
- globals.linkPath = getLinksDir() + "/current";
+ globals.profile = canonPath(nixStateDir + "/profiles/default");
globals.nixExprPath = getDefNixExprPath();
for (Strings::iterator i = args.begin(); i != args.end(); ++i) {
@@ -694,11 +698,11 @@ void run(Strings args)
op = opQuery;
else if (arg == "--import" || arg == "-I") /* !!! bad name */
op = opDefaultExpr;
- else if (arg == "--link" || arg == "-l") {
+ else if (arg == "--profile" || arg == "-p") {
++i;
if (i == args.end()) throw UsageError(
format("`%1%' requires an argument") % arg);
- globals.linkPath = absPath(*i);
+ globals.profile = absPath(*i);
}
else if (arg == "--file" || arg == "-f") {
++i;
@@ -706,7 +710,7 @@ void run(Strings args)
format("`%1%' requires an argument") % arg);
globals.nixExprPath = absPath(*i);
}
- else if (arg == "--profile" || arg == "-p")
+ else if (arg == "--switch-profile" || arg == "-S")
op = opSwitchProfile;
else if (arg[0] == '-')
opFlags.push_back(arg);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-23 23:38:40 +0000