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| author | Eelco Dolstra <edolstra@gmail.com> | 2019-05-28 22:35:41 +0200 |
|---|---|---|
| committer | Eelco Dolstra <edolstra@gmail.com> | 2019-05-29 10:10:40 +0200 |
| commit | ae7b56cd9a5ed8810828736fbb930a7c14ea44ca (patch) | |
| tree | f20b1596729f29a60f36502324378388dafa2318 /src/libutil | |
| parent | 0f840483c731f48983832f7f627909f8463f05f3 (diff) | |
Get last commit time of github flakes
Diffstat (limited to 'src/libutil')
| -rw-r--r-- | src/libutil/util.cc | 18 | ||||
| -rw-r--r-- | src/libutil/util.hh | 6 |
2 files changed, 19 insertions, 5 deletions
diff --git a/src/libutil/util.cc b/src/libutil/util.cc index f82f902fc..92c8957ff 100644 --- a/src/libutil/util.cc +++ b/src/libutil/util.cc @@ -22,6 +22,7 @@ #include <sys/ioctl.h> #include <sys/types.h> #include <sys/wait.h> +#include <sys/time.h> #include <unistd.h> #ifdef __APPLE__ @@ -552,20 +553,31 @@ Paths createDirs(const Path & path) } -void createSymlink(const Path & target, const Path & link) +void createSymlink(const Path & target, const Path & link, + std::optional<time_t> mtime) { if (symlink(target.c_str(), link.c_str())) throw SysError(format("creating symlink from '%1%' to '%2%'") % link % target); + if (mtime) { + struct timeval times[2]; + times[0].tv_sec = *mtime; + times[0].tv_usec = 0; + times[1].tv_sec = *mtime; + times[1].tv_usec = 0; + if (lutimes(link.c_str(), times)) + throw SysError("setting time of symlink '%s'", link); + } } -void replaceSymlink(const Path & target, const Path & link) +void replaceSymlink(const Path & target, const Path & link, + std::optional<time_t> mtime) { for (unsigned int n = 0; true; n++) { Path tmp = canonPath(fmt("%s/.%d_%s", dirOf(link), n, baseNameOf(link))); try { - createSymlink(target, tmp); + createSymlink(target, tmp, mtime); } catch (SysError & e) { if (e.errNo == EEXIST) continue; throw; diff --git a/src/libutil/util.hh b/src/libutil/util.hh index 35f9169f6..e05ef1e7d 100644 --- a/src/libutil/util.hh +++ b/src/libutil/util.hh @@ -142,10 +142,12 @@ Path getDataDir(); Paths createDirs(const Path & path); /* Create a symlink. */ -void createSymlink(const Path & target, const Path & link); +void createSymlink(const Path & target, const Path & link, + std::optional<time_t> mtime = {}); /* Atomically create or replace a symlink. */ -void replaceSymlink(const Path & target, const Path & link); +void replaceSymlink(const Path & target, const Path & link, + std::optional<time_t> mtime = {}); /* Wrappers arount read()/write() that read/write exactly the |