diff options
| -rw-r--r-- | share/man/man5/bsd.port.mk.5 | 18 | ||||
| -rw-r--r-- | share/man/man7/ports.7 | 45 |
2 files changed, 61 insertions, 2 deletions
diff --git a/share/man/man5/bsd.port.mk.5 b/share/man/man5/bsd.port.mk.5 index 422ee287ce5..02ed0b3ff33 100644 --- a/share/man/man5/bsd.port.mk.5 +++ b/share/man/man5/bsd.port.mk.5 @@ -1,4 +1,4 @@ -.\" $OpenBSD: bsd.port.mk.5,v 1.143 2004/07/11 20:46:32 espie Exp $ +.\" $OpenBSD: bsd.port.mk.5,v 1.144 2004/07/20 05:44:34 espie Exp $ .\" .\" Copyright (c) 2000 Marc Espie .\" @@ -1010,6 +1010,17 @@ If USE_LIBTOOL is set, the environment variable LIBTOOL is set to ${LIBTOOL} ${LIBTOOL_FLAGS}. .It Ev LOCALBASE where other ports have already been installed (default: /usr/local) +.It Ev LOCKDIR +User settings. +If set, points to a directory common for all instances of concurrent ports +builds. +.It Ev LOCK_CMD +User settings. +If set, expands to a command that will acquire a lock. +This lock will reside in +.Pa ${LOCKDIR} . +See also +.Xr ports 7 . .It Ev LP64_ARCHS Set to the list of 64-bit architectures. Use with @@ -1474,6 +1485,11 @@ correct. See also .Ev BIN_PACKAGES , .Ev BULK . +.It Ev UNLOCK_CMD +User settings. +If set, expands to a command that will release a lock. +This lock will reside in +.Pa ${LOCKDIR} . .It Ev UNZIP Name of the unzip binary. .It Ev WARNINGS diff --git a/share/man/man7/ports.7 b/share/man/man7/ports.7 index b44db824c72..b22f4fadbe3 100644 --- a/share/man/man7/ports.7 +++ b/share/man/man7/ports.7 @@ -23,7 +23,7 @@ .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. .\" -.\" $OpenBSD: ports.7,v 1.42 2004/04/16 21:23:08 jmc Exp $ +.\" $OpenBSD: ports.7,v 1.43 2004/07/20 05:44:35 espie Exp $ .\" $FreeBSD: ports.7,v 1.7 1998/06/23 04:38:50 hoek Exp $ .\" .Dd January 25, 1998 @@ -271,6 +271,49 @@ belongs to. Remove the symbolic links created by .Ar link-categories . .El +.Sh LOCK INFRASTRUCTURE +The ports tree can be used concurrently for building several ports at the +same time, thanks to a locking mechanism. +By default, this mechanism is disabled. +Defining +.Ev LOCKDIR , +.Ev LOCK_CMD , +and +.Ev UNLOCK_CMD +to proper values will activate it. +.Pp +All locks will be stored in +.Pa ${LOCKDIR} . +.Ev LOCK_CMD +should be used to acquire a lock, and +.Ev UNLOCK_CMD should be used to release it. +.Pp +Locks are named ${LOCKDIR}/${FULLPKGNAME}.lock, +or ${LOCKDIR}/${DISTFILE}.lock for distfiles fetching. +.Pp +The locking protocol follows a big-lock model: each top-level target +in a port directory will acquire the corresponding lock, complete its job, +then release the lock, e.g., running +.Bd -literal -offset indent +$ make build +.Ed +.Pp +will acquire the lock, run the port +through +.Ar fetch , +.Ar checksum , +.Ar extract , +.Ar patch , +.Ar configure , +.Ar build , +then release the lock. +If dependencies are involved, they will invoke top-level targets in other +directories, and thus acquire some other locks as well. +.Pp +At no moment should a given invocation of +.Xr make 1 +acquire the same lock twice, thus recursive locking is not needed for +.Ev LOCK_CMD . .Sh BULK PACKAGE BUILDING The ports tree contains some mechanisms to save space when building large collections of packages. |