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Code Activity

Finished set-up for nix-state, now: adding runtime state parameters & exclude state-identifier as input from state-hash

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This commit is contained in:
Wouter den Breejen 2007-05-29 11:34:54 +00:00
parent 0a303ea2c0
commit fbd1b78a9d
10 changed files with 120 additions and 74 deletions
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51
src/nix-state/help.txt
View file

@ -1,58 +1,11 @@
Usage: nix-state [OPTIONS...] [ARGUMENTS...]
`nix-store' is a tool to manipulate the Nix store.
`nix-state' is a tool to manipulate the Nix state-store and to run programs.
Operations:
--realise / -r: ensure path validity; if a derivation, ensure that
validity of the outputs
--add / -A: copy a path to the Nix store
--delete: safely delete paths from the Nix store
--query / -q: query information
--read-log / -l: print build log of given store paths
--register-substitutes: register a substitute expression (dangerous!)
--clear-substitutes: clear all substitutes
--register-validity: register path validity (dangerous!)
--check-validity: check path validity
--gc: run the garbage collector
--dump: dump a path as a Nix archive
--restore: restore a path from a Nix archive
--init: initialise the Nix database
--verify: verify Nix structures
--realise / -r: ensure path validity; if a derivation, ensure that validity of the outputs
--version: output version information
--help: display help
Query flags:
--outputs: query the output paths of a Nix derivation (default)
--requisites / -R: print all paths necessary to realise a path
--references: print all paths referenced by the given path
--referrers: print all paths directly refering to the given path
--referrers-closure: print all paths (in)directly refering to the given path
--tree: print a tree showing the dependency graph of the given paths
--graph: print a dot graph rooted at given paths
Query switches (not applicable to all queries):
--use-output: perform query on output of derivation, not derivation itself
--force-realise: realise the path before performing the query
--include-outputs: in `-R' on a derivation, include requisites of outputs
Garbage collector options:
--print-roots: print GC roots and exit
--print-live: print live paths and exit
--print-dead: print dead paths and exit
--delete: delete dead paths (default)
Options:
--verbose / -v: verbose operation (may be repeated)
--keep-failed / -K: keep temporary directories of failed builds
--add-root: add garbage collector roots for the result

39
src/nix-state/nix-state.cc
View file

@ -8,6 +8,7 @@
#include "db.hh"
#include "util.hh"
#include "help.txt.hh"
#include "local-store.hh"
using namespace nix;
@ -24,14 +25,11 @@ void printHelp()
}
static Path gcRoot;
static int rootNr = 0;
static bool indirectRoot = false;
//Look up the references of all (runtime) dependencies that maintain have state
void commitReferencesClosure(){
static void opCommitReferencesClosure(Strings opFlags, Strings opArgs)
{
/*
Database nixDB;
try {
@ -44,17 +42,17 @@ void commitReferencesClosure(){
Paths referencesKeys;
Transaction txn(nixDB);
TableId dbReferences = nixDB.openTable("references");
TableId dbReferences = nixDB.openTable("statecounters");
nixDB.enumTable(txn, dbReferences, referencesKeys);
for (Paths::iterator i = referencesKeys.begin(); i != referencesKeys.end(); ++i)
{
printMsg(lvlError, format("NIX-STATE: `%1%'") % *i);
}
}*/
PathSet a;
a.insert("/nix/state/m3h15msjdv1cliqdc3ijj906dzhsf6p0-hellohardcodedstateworld-1.0/log/");
store->getStatePathsInterval(a);
/*
@ -83,6 +81,7 @@ void commitReferencesClosure(){
/* Scan the arguments; find the operation, set global flags, put all
other flags in a list, and put all other arguments in another
list. */
void run(Strings args)
{
Strings opFlags, opArgs;
@ -92,9 +91,10 @@ void run(Strings args)
string arg = *i++;
Operation oldOp = op;
/*
if (arg == "--realise" || arg == "-r")
op = opRealise;
if (arg == "--start" || arg == "-r")
op = opCommitReferencesClosure;
/*
else if (arg == "--add" || arg == "-A")
op = opAdd;
else if (arg == "--add-fixed")
@ -103,19 +103,22 @@ void run(Strings args)
op = opPrintFixedPath;
else if (arg[0] == '-')
opFlags.push_back(arg);
*/
else
opArgs.push_back(arg);
if (oldOp && oldOp != op)
throw UsageError("only one operation may be specified");
*/
}
commitReferencesClosure();
//opCommitReferencesClosure();
//if (!op) throw UsageError("no operation specified");
if (!op) throw UsageError("no operation specified");
/* !!! hack */
store = openStore();
//op(opFlags, opArgs);
op(opFlags, opArgs);
}