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-rw-r--r--.travis.yml27
-rw-r--r--erts/emulator/beam/erl_process.c284
-rw-r--r--erts/emulator/beam/erl_process.h2
-rw-r--r--erts/emulator/test/process_SUITE.erl54
-rw-r--r--erts/etc/unix/etp-commands.in26
-rwxr-xr-xscripts/build-otp34
-rwxr-xr-xscripts/pre-push4
7 files changed, 240 insertions, 191 deletions
diff --git a/.travis.yml b/.travis.yml
index 825fb8de87..ee724f8947 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -49,19 +49,20 @@ matrix:
- env: Linux64Docbuild
script:
- ./scripts/build-otp docs
- ### Disabled for now, we do not want this to push to otp repo
- # deploy:
- # provider: pages
- # skip-cleanup: true
- # keep-history: true
- # verbose: true
- # github-token:
- # secure: oea4VBDok/gSPwo82XRkM3C5mpyVrcgJfOHgzO01rN4UbWN615wpnTLmkwe9gtkiSwRNNT6GoZ8Rx0EM5ByS2H3qY65bj3M+clMgFAPBn7aHDmnWpi8pi8OBIMmIGxHYQn0hzY4ZCVZQ1FtzTrLZDqZrAZBAGdgDdlH9IrsnBDUKNKzU28UMEgXJKX7bwdHo5H7JGkKeGh6bMi7/s5f/MwTQgp5Iv+PUhCZ1II+Wxz+fh+B6O8kgpq6oaBLjKeaim8bpeQ/vER6Vbaf6ORH0JiJcivDeBAfOVXyx75Omam3fqEuAGW1tmvXWljijWI21WhWmjZc+s8z5ML9wEBKlw0w9BGlzVs7Z+nVtAxufx0YqTsMhlzruxzhaNxh+7jEAMsU9LzBR3AHugqV5xbp3cyYEhWQl+MkhtrKsjs2MyZeyL2T9aeXJBDC6Jb2mznjvHKm11r5oz986uGr88qbDrwT+arRVYDFBvG52nqXa+4Hn+qPoZqDl4JC0YQeVhkbYtpPS1CYkl7JAXev2L4wDSc9Cywr02tJCTrR/yWKEANyYtVl2PzNkKAAvtROpEJv6y3PxhBJzr+Qk/MDLZWGV0KN4gNIYSxFkTFUddbgF53ZnVKAh4tv/vr7Uxvup9Zy7pqF9h+p4jZ0Yq0Y1AESCorU+qfXAxnGiKO8dewuBQhI=
- # on:
- # # We only deploy on pushes to branches
- # tags: false
- # condition: $TRAVIS_PULL_REQUEST = "false"
- # repo: erlang/otp
+ deploy:
+ provider: pages
+ repo: erlang/cd
+ target-branch: master
+ skip-cleanup: true
+ keep-history: true
+ verbose: true
+ github-token: $ERLANG_CD_GITHUB_TOKEN
+ on:
+ # We only deploy on pushes to branches
+ all_branches: true
+ tags: false
+ condition: $TRAVIS_PULL_REQUEST = "false"
+ repo: erlang/otp
# This stage publishes a otp bundle that contains multiple
# Erlang/OTP source repositories
- stage: deploy
diff --git a/erts/emulator/beam/erl_process.c b/erts/emulator/beam/erl_process.c
index 8253ec4f40..11b52526d5 100644
--- a/erts/emulator/beam/erl_process.c
+++ b/erts/emulator/beam/erl_process.c
@@ -3761,6 +3761,8 @@ dequeue_process(ErtsRunQueue *runq, int prio_q, erts_aint32_t *statep)
ERTS_THR_DATA_DEPENDENCY_READ_MEMORY_BARRIER;
state = erts_atomic32_read_nob(&p->state);
+ ASSERT(state & ERTS_PSFLG_IN_RUNQ);
+
if (statep)
*statep = state;
@@ -3768,8 +3770,7 @@ dequeue_process(ErtsRunQueue *runq, int prio_q, erts_aint32_t *statep)
rqi = &runq->procs.prio_info[prio];
- if (p)
- unqueue_process(runq, rpq, rqi, prio, NULL, p);
+ unqueue_process(runq, rpq, rqi, prio, NULL, p);
return p;
}
@@ -4088,7 +4089,7 @@ evacuate_run_queue(ErtsRunQueue *rq,
erts_runq_unlock(to_rq);
smp_notify_inc_runq(to_rq);
- erts_runq_lock(to_rq);
+ erts_runq_lock(rq);
}
if (rq->ports.start) {
@@ -4157,22 +4158,17 @@ evacuate_run_queue(ErtsRunQueue *rq,
free_proxy_proc(proc);
else {
erts_aint32_t clr_bits;
-#ifdef DEBUG
- erts_aint32_t old;
-#endif
clr_bits = ERTS_PSFLG_IN_RUNQ;
clr_bits |= qbit << ERTS_PSFLGS_IN_PRQ_MASK_OFFSET;
-#ifdef DEBUG
- old =
-#else
- (void)
-#endif
- erts_atomic32_read_band_mb(&proc->state,
- ~clr_bits);
- ASSERT((old & clr_bits) == clr_bits);
+ state = erts_atomic32_read_band_mb(&proc->state, ~clr_bits);
+ ASSERT((state & clr_bits) == clr_bits);
+ if (state & ERTS_PSFLG_FREE) {
+ /* free and not queued by proxy */
+ erts_proc_dec_refc(proc);
+ }
}
goto handle_next_proc;
@@ -6208,13 +6204,14 @@ fin_dirty_enq_s_change(Process *p,
/* Already enqueue by someone else... */
if (pstruct_reserved) {
/* We reserved process struct for enqueue; clear it... */
-#ifdef DEBUG
- erts_aint32_t old =
-#else
- (void)
-#endif
- erts_atomic32_read_band_nob(&p->state, ~ERTS_PSFLG_IN_RUNQ);
- ASSERT(old & ERTS_PSFLG_IN_RUNQ);
+ erts_aint32_t state;
+
+ state = erts_atomic32_read_band_nob(&p->state, ~ERTS_PSFLG_IN_RUNQ);
+ ASSERT(state & ERTS_PSFLG_IN_RUNQ);
+
+ if (state & ERTS_PSFLG_FREE) {
+ erts_proc_dec_refc(p);
+ }
}
return 0;
}
@@ -6407,8 +6404,9 @@ schedule_out_process(ErtsRunQueue *c_rq, erts_aint32_t state, Process *p,
== ERTS_PSFLG_ACTIVE));
n &= ~running_flgs;
- if ((a & (ERTS_PSFLG_ACTIVE_SYS|ERTS_PSFLG_DIRTY_ACTIVE_SYS))
- || (a & (ERTS_PSFLG_ACTIVE|ERTS_PSFLG_SUSPENDED)) == ERTS_PSFLG_ACTIVE) {
+ if ((!!(a & (ERTS_PSFLG_ACTIVE_SYS|ERTS_PSFLG_DIRTY_ACTIVE_SYS))
+ | ((a & (ERTS_PSFLG_ACTIVE|ERTS_PSFLG_SUSPENDED)) == ERTS_PSFLG_ACTIVE))
+ & !(a & ERTS_PSFLG_FREE)) {
enqueue = check_enqueue_in_prio_queue(p, &enq_prio, &n, a);
}
a = erts_atomic32_cmpxchg_mb(&p->state, n, e);
@@ -6655,62 +6653,72 @@ erts_schedule_process(Process *p, erts_aint32_t state, ErtsProcLocks locks)
schedule_process(p, state, locks);
}
+/* Enqueues the given sys task on the process and schedules it. The task may be
+ * NULL if only scheduling is desired. */
static ERTS_INLINE erts_aint32_t
-active_sys_enqueue(Process *p, erts_aint32_t state,
- erts_aint32_t enable_flags, int status_locked)
-{
- /*
- * This function may or may not be called with status locke held.
- * It always returns without the status lock held!
- */
- unsigned int prof_runnable_procs = erts_system_profile_flags.runnable_procs;
- erts_aint32_t n, a = state, enq_prio = -1;
- int slocked = status_locked;
+active_sys_enqueue(Process *p, ErtsProcSysTask *sys_task,
+ erts_aint32_t task_prio, erts_aint32_t enable_flags,
+ erts_aint32_t state, erts_aint32_t *fail_state_p)
+{
+ int runnable_procs = erts_system_profile_flags.runnable_procs;
+ erts_aint32_t n, a, enq_prio, fail_state;
+ int already_scheduled;
+ int status_locked;
int enqueue; /* < 0 -> use proxy */
- /* Status lock prevents out of order "runnable proc" trace msgs */
- ERTS_LC_ASSERT(slocked || !(ERTS_PROC_LOCK_STATUS & erts_proc_lc_my_proc_locks(p)));
- ERTS_LC_ASSERT(!slocked || (ERTS_PROC_LOCK_STATUS & erts_proc_lc_my_proc_locks(p)));
-
- if (!prof_runnable_procs) {
- if (slocked) {
- erts_proc_unlock(p, ERTS_PROC_LOCK_STATUS);
- slocked = 0;
- }
- }
- else {
- if (!slocked) {
- erts_proc_lock(p, ERTS_PROC_LOCK_STATUS);
- slocked = !0;
- }
- }
+ enable_flags |= ERTS_PSFLG_ACTIVE_SYS;
+ fail_state = *fail_state_p;
+ already_scheduled = 0;
+ status_locked = 0;
+ enq_prio = -1;
+ a = state;
+ ERTS_LC_ASSERT(!(ERTS_PROC_LOCK_STATUS & erts_proc_lc_my_proc_locks(p)));
+ ASSERT(fail_state & (ERTS_PSFLG_EXITING | ERTS_PSFLG_FREE));
+ ASSERT(!(fail_state & enable_flags));
ASSERT(!(state & ERTS_PSFLG_PROXY));
+ /* When runnable_procs is enabled, we need to take the status lock to
+ * prevent trace messages from being sent in the wrong order. The lock must
+ * be held over the call to add2runq.
+ *
+ * Otherwise, we only need to take it when we're enqueuing a task and can
+ * safely release it before add2runq. */
+ if (sys_task || runnable_procs) {
+ erts_proc_lock(p, ERTS_PROC_LOCK_STATUS);
+ status_locked = 1;
+ }
+
while (1) {
erts_aint32_t e;
n = e = a;
- if (a & ERTS_PSFLG_FREE)
- goto cleanup; /* We don't want to schedule free processes... */
+ if (a & fail_state) {
+ *fail_state_p = a & fail_state;
+ goto cleanup;
+ }
enqueue = ERTS_ENQUEUE_NOT;
- n |= enable_flags;
- n |= ERTS_PSFLG_ACTIVE_SYS;
+ n |= enable_flags;
+
if (!(a & (ERTS_PSFLG_RUNNING
| ERTS_PSFLG_RUNNING_SYS
| ERTS_PSFLG_DIRTY_RUNNING
- | ERTS_PSFLG_DIRTY_RUNNING_SYS)))
+ | ERTS_PSFLG_DIRTY_RUNNING_SYS))) {
enqueue = check_enqueue_in_prio_queue(p, &enq_prio, &n, a);
+ }
+
a = erts_atomic32_cmpxchg_mb(&p->state, n, e);
- if (a == e)
+ if (a == e) {
break;
- if (a == n && enqueue == ERTS_ENQUEUE_NOT)
- goto cleanup;
+ }
+ else if (a == n && enqueue == ERTS_ENQUEUE_NOT) {
+ already_scheduled = 1;
+ break;
+ }
}
- if (prof_runnable_procs) {
-
+ if (!already_scheduled && runnable_procs) {
if (!(a & (ERTS_PSFLG_ACTIVE_SYS
| ERTS_PSFLG_RUNNING
| ERTS_PSFLG_RUNNING_SYS
@@ -6720,19 +6728,56 @@ active_sys_enqueue(Process *p, erts_aint32_t state,
/* We activated a prevously inactive process */
profile_runnable_proc(p, am_active);
}
-
- erts_proc_unlock(p, ERTS_PROC_LOCK_STATUS);
- slocked = 0;
}
- add2runq(enqueue, enq_prio, p, n, NULL);
+ if (sys_task) {
+ ErtsProcSysTaskQs *stqs = p->sys_task_qs;
-cleanup:
+ if (!stqs) {
+ sys_task->next = sys_task->prev = sys_task;
- if (slocked)
- erts_proc_unlock(p, ERTS_PROC_LOCK_STATUS);
+ stqs = proc_sys_task_queues_alloc();
- ERTS_LC_ASSERT(!(ERTS_PROC_LOCK_STATUS & erts_proc_lc_my_proc_locks(p)));
+ stqs->qmask = 1 << task_prio;
+ stqs->ncount = 0;
+ stqs->q[PRIORITY_MAX] = NULL;
+ stqs->q[PRIORITY_HIGH] = NULL;
+ stqs->q[PRIORITY_NORMAL] = NULL;
+ stqs->q[PRIORITY_LOW] = NULL;
+ stqs->q[task_prio] = sys_task;
+
+ p->sys_task_qs = stqs;
+ }
+ else {
+ if (!stqs->q[task_prio]) {
+ sys_task->next = sys_task->prev = sys_task;
+
+ stqs->q[task_prio] = sys_task;
+ stqs->qmask |= 1 << task_prio;
+ }
+ else {
+ sys_task->next = stqs->q[task_prio];
+ sys_task->prev = stqs->q[task_prio]->prev;
+ sys_task->next->prev = sys_task;
+ sys_task->prev->next = sys_task;
+ ASSERT(stqs->qmask & (1 << task_prio));
+ }
+ }
+ }
+
+ if (status_locked && !runnable_procs) {
+ erts_proc_unlock(p, ERTS_PROC_LOCK_STATUS);
+ status_locked = 0;
+ }
+
+ if (!already_scheduled) {
+ add2runq(enqueue, enq_prio, p, n, NULL);
+ }
+
+cleanup:
+ if (status_locked) {
+ erts_proc_unlock(p, ERTS_PROC_LOCK_STATUS);
+ }
return n;
}
@@ -6740,103 +6785,41 @@ cleanup:
erts_aint32_t
erts_proc_sys_schedule(Process *p, erts_aint32_t state, erts_aint32_t enable_flag)
{
- /* We are not allowed to call this function with status lock held... */
- return active_sys_enqueue(p, state, enable_flag, 0);
+ erts_aint32_t fail_state = ERTS_PSFLG_FREE;
+
+ return active_sys_enqueue(p, NULL, 0, enable_flag, state, &fail_state);
}
static int
schedule_process_sys_task(Process *p, erts_aint32_t prio, ErtsProcSysTask *st,
erts_aint32_t *fail_state_p)
{
- int res;
- int locked;
- ErtsProcSysTaskQs *stqs, *free_stqs;
erts_aint32_t fail_state, state;
- fail_state = *fail_state_p;
-
- res = 1; /* prepare for success */
- st->next = st->prev = st; /* Prep for empty prio queue */
+ /* Elevate priority if needed. */
state = erts_atomic32_read_nob(&p->state);
- locked = 0;
- free_stqs = NULL;
- if (state & ERTS_PSFLG_SYS_TASKS)
- stqs = NULL;
- else {
- alloc_qs:
- stqs = proc_sys_task_queues_alloc();
- stqs->qmask = 1 << prio;
- stqs->ncount = 0;
- stqs->q[PRIORITY_MAX] = NULL;
- stqs->q[PRIORITY_HIGH] = NULL;
- stqs->q[PRIORITY_NORMAL] = NULL;
- stqs->q[PRIORITY_LOW] = NULL;
- stqs->q[prio] = st;
- }
-
- if (!locked) {
- locked = 1;
- erts_proc_lock(p, ERTS_PROC_LOCK_STATUS);
-
- state = erts_atomic32_read_nob(&p->state);
- if (state & fail_state) {
- erts_proc_unlock(p, ERTS_PROC_LOCK_STATUS);
- *fail_state_p = (state & fail_state);
- free_stqs = stqs;
- res = 0;
- goto cleanup;
- }
- }
-
- if (!p->sys_task_qs) {
- if (stqs)
- p->sys_task_qs = stqs;
- else
- goto alloc_qs;
- }
- else {
- free_stqs = stqs;
- stqs = p->sys_task_qs;
- if (!stqs->q[prio]) {
- stqs->q[prio] = st;
- stqs->qmask |= 1 << prio;
- }
- else {
- st->next = stqs->q[prio];
- st->prev = stqs->q[prio]->prev;
- st->next->prev = st;
- st->prev->next = st;
- ASSERT(stqs->qmask & (1 << prio));
- }
- }
-
if (ERTS_PSFLGS_GET_ACT_PRIO(state) > prio) {
- erts_aint32_t n, a, e;
- /* Need to elevate actual prio */
+ erts_aint32_t n, a, e;
- a = state;
- do {
- if (ERTS_PSFLGS_GET_ACT_PRIO(a) <= prio) {
- n = a;
- break;
- }
- n = e = a;
- n &= ~ERTS_PSFLGS_ACT_PRIO_MASK;
- n |= (prio << ERTS_PSFLGS_ACT_PRIO_OFFSET);
- a = erts_atomic32_cmpxchg_nob(&p->state, n, e);
- } while (a != e);
- state = n;
- }
-
- /* active_sys_enqueue() always return with status lock unlocked */
- (void) active_sys_enqueue(p, state, ERTS_PSFLG_SYS_TASKS, locked);
+ a = state;
+ do {
+ if (ERTS_PSFLGS_GET_ACT_PRIO(a) <= prio) {
+ n = a;
+ break;
+ }
+ n = e = a;
+ n &= ~ERTS_PSFLGS_ACT_PRIO_MASK;
+ n |= (prio << ERTS_PSFLGS_ACT_PRIO_OFFSET);
+ a = erts_atomic32_cmpxchg_nob(&p->state, n, e);
+ } while (a != e);
-cleanup:
+ state = n;
+ }
- if (free_stqs)
- proc_sys_task_queues_free(free_stqs);
+ fail_state = *fail_state_p;
- return res;
+ return !(active_sys_enqueue(p, st, prio, ERTS_PSFLG_SYS_TASKS,
+ state, fail_state_p) & fail_state);
}
static ERTS_INLINE int
@@ -9563,6 +9546,7 @@ Process *erts_schedule(ErtsSchedulerData *esdp, Process *p, int calls)
}
else if (state & ERTS_PSFLG_FREE) {
/* free and not queued by proxy */
+ ASSERT(state & ERTS_PSFLG_IN_RUNQ);
erts_proc_dec_refc(p);
}
if (!is_normal_sched)
diff --git a/erts/emulator/beam/erl_process.h b/erts/emulator/beam/erl_process.h
index a60e117bab..8d20ccdf90 100644
--- a/erts/emulator/beam/erl_process.h
+++ b/erts/emulator/beam/erl_process.h
@@ -293,7 +293,7 @@ typedef enum {
* highest index...
*
* Remember to update description in erts_pre_init_process()
- * when adding new flags...
+ * and etp-commands when adding new flags...
*/
typedef enum {
diff --git a/erts/emulator/test/process_SUITE.erl b/erts/emulator/test/process_SUITE.erl
index 585c5a1871..57eb082d64 100644
--- a/erts/emulator/test/process_SUITE.erl
+++ b/erts/emulator/test/process_SUITE.erl
@@ -59,6 +59,7 @@
no_priority_inversion2/1,
system_task_blast/1,
system_task_on_suspended/1,
+ system_task_failed_enqueue/1,
gc_request_when_gc_disabled/1,
gc_request_blast_when_gc_disabled/1]).
-export([prio_server/2, prio_client/2, init/1, handle_event/2]).
@@ -106,7 +107,7 @@ groups() ->
otp_7738_resume]},
{system_task, [],
[no_priority_inversion, no_priority_inversion2,
- system_task_blast, system_task_on_suspended,
+ system_task_blast, system_task_on_suspended, system_task_failed_enqueue,
gc_request_when_gc_disabled, gc_request_blast_when_gc_disabled]}].
init_per_suite(Config) ->
@@ -2625,6 +2626,57 @@ system_task_on_suspended(Config) when is_list(Config) ->
ok
end.
+%% When a system task couldn't be enqueued due to the process being in an
+%% incompatible state, it would linger in the system task list and get executed
+%% anyway the next time the process was scheduled. This would result in a
+%% double-free at best.
+%%
+%% This test continuously purges modules while other processes run dirty code,
+%% which will provoke this error as ERTS_PSTT_CPC can't be enqueued while a
+%% process is running dirty code.
+system_task_failed_enqueue(Config) when is_list(Config) ->
+ case erlang:system_info(dirty_cpu_schedulers) of
+ N when N > 0 ->
+ system_task_failed_enqueue_1(Config);
+ _ ->
+ {skipped, "No dirty scheduler support"}
+ end.
+
+system_task_failed_enqueue_1(Config) ->
+ Priv = proplists:get_value(priv_dir, Config),
+
+ Purgers = [spawn_link(fun() -> purge_loop(Priv, Id) end)
+ || Id <- lists:seq(1, erlang:system_info(schedulers))],
+ Hogs = [spawn_link(fun() -> dirty_loop() end)
+ || _ <- lists:seq(1, erlang:system_info(dirty_cpu_schedulers))],
+
+ ct:sleep(5000),
+
+ [begin
+ unlink(Pid),
+ exit(Pid, kill)
+ end || Pid <- (Purgers ++ Hogs)],
+
+ ok.
+
+purge_loop(PrivDir, Id) ->
+ Mod = "failed_enq_" ++ integer_to_list(Id),
+ Path = PrivDir ++ "/" ++ Mod,
+ file:write_file(Path ++ ".erl",
+ "-module('" ++ Mod ++ "').\n" ++
+ "-export([t/0]).\n" ++
+ "t() -> ok."),
+ purge_loop_1(Path).
+purge_loop_1(Path) ->
+ {ok, Mod} = compile:file(Path, []),
+ erlang:delete_module(Mod),
+ erts_code_purger:purge(Mod),
+ purge_loop_1(Path).
+
+dirty_loop() ->
+ ok = erts_debug:dirty_cpu(reschedule, 10000),
+ dirty_loop().
+
gc_request_when_gc_disabled(Config) when is_list(Config) ->
AIS = erts_debug:set_internal_state(available_internal_state, true),
gc_request_when_gc_disabled_do(ref),
diff --git a/erts/etc/unix/etp-commands.in b/erts/etc/unix/etp-commands.in
index 5b89621733..b12a205ba7 100644
--- a/erts/etc/unix/etp-commands.in
+++ b/erts/etc/unix/etp-commands.in
@@ -2734,25 +2734,37 @@ define etp-aux-work-flags
printf " fix-alloc-lower-lim"
end
if ($arg0 & 0x10)
- printf " async-ready"
+ printf " later-op"
end
if ($arg0 & 0x20)
- printf " async-ready-clean"
+ printf " canceled-timers"
end
if ($arg0 & 0x40)
- printf " misc-work-thr-prgr"
+ printf " canceled-timers-thr-prgr"
end
if ($arg0 & 0x80)
- printf " misc-work"
+ printf " async-ready"
end
if ($arg0 & 0x100)
- printf " check-children"
+ printf " async-ready-clean"
end
if ($arg0 & 0x200)
- printf " set-tmo"
+ printf " misc-thr-prgr"
end
if ($arg0 & 0x400)
- printf " mseg-cached-check"
+ printf " misc"
+ end
+ if ($arg0 & 0x800)
+ printf " set-tmo"
+ end
+ if ($arg0 & 0x1000)
+ printf " mseg-cache-check"
+ end
+ if ($arg0 & 0x2000)
+ printf " yield"
+ end
+ if ($arg0 & 0x1000)
+ printf " reap-ports"
end
if ($arg0 & ~0x7ff)
printf " GARBAGE"
diff --git a/scripts/build-otp b/scripts/build-otp
index e33bf95286..c38d2c98de 100755
--- a/scripts/build-otp
+++ b/scripts/build-otp
@@ -57,23 +57,23 @@ if [ "$1" = "docs" ]; then
do_and_log "Linting documentation" make xmllint
# The code below prepares this build to be used as a deploy to
# github pages for documentation.
- # if [ "$TRAVIS_PULL_REQUEST" = "false" -a "$TRAVIS_TAG" = "" ]; then
- # set -x
- # rm -rf logs
- # SHA=`git rev-parse --verify HEAD`
- # DATE=`date -Iseconds`
- # git clean -xfdq -e $DOC_TARGET
- # git fetch https://github.com/$TRAVIS_REPO_SLUG gh-pages
- # git checkout -f FETCH_HEAD
- # rm -rf _docs/$DOC_TARGET
- # mv $DOC_TARGET _docs/$DOC_TARGET
- # echo "---" > _docs/$DOC_TARGET.md
- # echo "title: $DOC_TARGET" >> _docs/$DOC_TARGET.md
- # echo "sha: $SHA" >> _docs/$DOC_TARGET.md
- # echo "generated: $DATE" >> _docs/$DOC_TARGET.md
- # echo "---" >> _docs/$DOC_TARGET.md
- # set +x
- # fi
+ if [ "$TRAVIS_PULL_REQUEST" = "false" -a "$TRAVIS_TAG" = "" ]; then
+ set -x
+ rm -rf logs
+ SHA=`git rev-parse --verify HEAD`
+ DATE=`git show -s --format=%ci`
+ git clean -xfdq -e $DOC_TARGET
+ git fetch https://github.com/erlang/cd master
+ git checkout -f FETCH_HEAD
+ rm -rf _docs/$DOC_TARGET
+ mv $DOC_TARGET _docs/$DOC_TARGET
+ echo "---" > _docs/$DOC_TARGET.md
+ echo "title: $DOC_TARGET" >> _docs/$DOC_TARGET.md
+ echo "sha: $SHA" >> _docs/$DOC_TARGET.md
+ echo "generated: $DATE" >> _docs/$DOC_TARGET.md
+ echo "---" >> _docs/$DOC_TARGET.md
+ set +x
+ fi
fi
exit 0
diff --git a/scripts/pre-push b/scripts/pre-push
index 0349378056..bc8c6955fd 100755
--- a/scripts/pre-push
+++ b/scripts/pre-push
@@ -22,10 +22,10 @@
# <local ref> <local sha1> <remote ref> <remote sha1>
#
-RELEASES="20 19 18 17 r16 r15 r14 r13"
+RELEASES="21 20 19 18 17 r16 r15 r14 r13"
# First commit on master, not allowed in other branches
-MASTER_ONLY=f52748254f17ba42e344798e8c787a1e3361fa33
+MASTER_ONLY=aea2a053e28a11497796879715be29ab0c3cd1a0
# Number of commits and files allowed in one push by this script
NCOMMITS_MAX=100