diff options
Diffstat (limited to 'src/libstore')
| -rw-r--r-- | src/libstore/gc.cc | 17 | ||||
| -rw-r--r-- | src/libstore/gc.hh | 6 |
2 files changed, 20 insertions, 3 deletions
diff --git a/src/libstore/gc.cc b/src/libstore/gc.cc index aed7c2294b04..9af957693f0c 100644 --- a/src/libstore/gc.cc +++ b/src/libstore/gc.cc @@ -2,6 +2,11 @@ #include "globals.hh" +#include <sys/types.h> +#include <sys/stat.h> +#include <unistd.h> + + void followLivePaths(Path nePath, PathSet & live) { /* Just to be sure, canonicalise the path. It is important to do @@ -62,16 +67,26 @@ PathSet findLivePaths(const Paths & roots) } -PathSet findDeadPaths(const PathSet & live) +PathSet findDeadPaths(const PathSet & live, time_t minAge) { PathSet dead; startNest(nest, lvlDebug, "finding dead paths"); + time_t now = time(0); + Strings storeNames = readDirectory(nixStore); for (Strings::iterator i = storeNames.begin(); i != storeNames.end(); ++i) { Path p = canonPath(nixStore + "/" + *i); + + if (minAge > 0) { + struct stat st; + if (lstat(p.c_str(), &st) != 0) + throw SysError(format("obtaining information about `%1%'") % p); + if (st.st_atime + minAge >= now) continue; + } + if (live.find(p) == live.end()) { debug(format("dead path `%1%'") % p); dead.insert(p); diff --git a/src/libstore/gc.hh b/src/libstore/gc.hh index 997057ba9b7b..1ada419da439 100644 --- a/src/libstore/gc.hh +++ b/src/libstore/gc.hh @@ -17,8 +17,10 @@ PathSet findLivePaths(const Paths & roots); /* Given a set of "live" store paths, determine the set of "dead" store paths (which are simply all store paths that are not in the - live set). */ -PathSet findDeadPaths(const PathSet & live); + live set). The value `minAge' specifies the minimum age in seconds + for an unreachable file to be considered dead (0 meaning that any + unreachable file is dead). */ +PathSet findDeadPaths(const PathSet & live, time_t minAge); #endif /* !__GC_H */ |