[PATCH OSSTEST v2 0/2] standalone: Add --dry-run option for run-job.

[PATCH OSSTEST v2 0/2] standalone: Add --dry-run option for run-job.

[Ian Campbell]

Resending as a series with the TCL env-var defaulting first.

Ian.

[PATCH OSSTEST v2 1/2] tcl: Handle environment variables which are unset.

[Ian Campbell]

This allows wrappers such as the standalone wrapper to do
     OSSTEST_SIMULATE=$foo ./sg-run-job
and not worry if $foo is unset.

Do likewise for OSSTEST_TCL_JOBDB_DEBUG.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
---
v2:
- Was: "sg-run-job: Only consider $OSSTEST_SIMULATE > 0"
- Insert before "standalone: Add --dry-run option for run-job."
- Use var-or-default from Ian J
---
 sg-run-job              | 2 +-
 tcl/JobDB-Executive.tcl | 2 +-
 tcl/osstestlib.tcl      | 6 ++++++
 3 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/sg-run-job b/sg-run-job
index 0ec314f..eae159d 100755
--- a/sg-run-job
+++ b/sg-run-job
@@ -159,7 +159,7 @@ proc spawn-ts {iffail testid args} {
     jobdb::spawn-step-commit $flight $jobinfo(job) $stepno $testid
 
     set xprefix {}
-    if {[info exists env(OSSTEST_SIMULATE)]} { set xprefix echo }
+    if {[var-or-default env(OSSTEST_SIMULATE) 0]} { set xprefix echo }
 
     set log [jobdb::step-log-filename $flight $jobinfo(job) $stepno $ts]
     set redirects {< /dev/null}
diff --git a/tcl/JobDB-Executive.tcl b/tcl/JobDB-Executive.tcl
index 430ea84..7228712 100644
--- a/tcl/JobDB-Executive.tcl
+++ b/tcl/JobDB-Executive.tcl
@@ -117,7 +117,7 @@ proc db-update-1 {stmt} {
 }
 
 proc db-execute-debug {stmt} {
-    if {[info exists env(OSSTEST_TCL_JOBDB_DEBUG)]} {
+    if {[var-or-default env(OSSTEST_TCL_JOBDB_DEBUG) 0]} {
 	puts stderr "EXECUTING >$stmt<"
     }
 }
diff --git a/tcl/osstestlib.tcl b/tcl/osstestlib.tcl
index a0413c4..61a6a09 100644
--- a/tcl/osstestlib.tcl
+++ b/tcl/osstestlib.tcl
@@ -74,3 +74,9 @@ proc lshift {listvar} {
     set list [lrange $list 1 end]
     return $head
 }
+
+proc var-or-default {varname {default {}}} {
+    upvar 1 $varname var
+    if {[info exists var]} { return $var }
+    return $default
+}
-- 
2.1.4

[PATCH OSSTEST v2 2/2] standalone: Add --dry-run option for run-job.

[Ian Campbell]

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
---
 standalone | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/standalone b/standalone
index caf3fd5..d8113e4 100755
--- a/standalone
+++ b/standalone
@@ -17,7 +17,7 @@ Operations:
   Setup dist path runvars for JOB from existing build results. Useful
   after recreating a flight to avoid the need to rebuild.
 
-* run-job [cfhrR] [JOB]
+* run-job [cfhrRs] [JOB]
 
   Run the named JOB.
 
@@ -42,6 +42,7 @@ Options:
 -h HOST, --host=HOST          Test host
 -r, --reuse                   Do not wipe test host (default)
 -R, --noreuse, --noreinstall  Wipe the test host (if job or test does so)
+-s, --simulate, --dry-run     Dry run, printing what would be run
 --lvextendmax=GB              Limit the size of the build logical volume
 --baseline                    Create a baseline flight instead of a tip flight
 
@@ -63,7 +64,7 @@ if [ x$op = x--help ] ; then
     exit 0
 fi
 
-TEMP=$(getopt -o c:f:h:rR --long config:,flight:,host:,reuse,noreuse,reinstall,lvextendmax:,baseline,help -- "$@")
+TEMP=$(getopt -o c:f:h:rRs --long config:,flight:,host:,reuse,noreuse,reinstall,simulate,dry-run,lvextendmax:,baseline,help -- "$@")
 
 eval set -- "$TEMP"
 
@@ -71,6 +72,7 @@ config=${OSSTEST_CONFIG-$HOME/.xen-osstest/config}
 flight="standalone"
 host=
 reuse=1 # Don't blow away machines by default
+dryrun=0
 lvextendmax=50 # Leave some LVM space free for running tests
 nobaseline=y
 
@@ -81,6 +83,7 @@ while true ; do
 	-h|--host)   host=$2;   shift 2;;
 	-r|--reuse)  reuse=1;   shift 1;;
 	-R|--noreuse|--reinstall)reuse=0;shift 1;;
+	-s|--simulate|--dry-run)dryrun=1;shift 1;;
 	--lvextendmax)lvextendmax=$2; shift 2;;
 	--baseline)nobaseline=n; shift 1;;
 	--help)      usage; exit 0;;
@@ -241,6 +244,7 @@ case $op in
 	OSSTEST_FLIGHT=$flight \
 	OSSTEST_HOST_HOST=$host \
 	OSSTEST_HOST_REUSE=$reuse \
+	OSSTEST_SIMULATE=$dryrun \
 	    with_logging logs/$flight/$job.log ./sg-run-job $job
 	;;
     run-test)
-- 
2.1.4

Re: [PATCH OSSTEST v2 1/2] tcl: Handle environment variables which are unset.

[Ian Jackson]

Ian Campbell writes ("[PATCH OSSTEST v2 1/2] tcl: Handle environment variables which are unset."):
> This allows wrappers such as the standalone wrapper to do
>      OSSTEST_SIMULATE=$foo ./sg-run-job
> and not worry if $foo is unset.
> 
> Do likewise for OSSTEST_TCL_JOBDB_DEBUG.
> 
> Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
> Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>

Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>

FWIW

Re: [PATCH OSSTEST v2 1/2] tcl: Handle environment variables which are unset.

[Ian Campbell]

On Tue, 2015-03-31 at 17:42 +0100, Ian Jackson wrote:
> Ian Campbell writes ("[PATCH OSSTEST v2 1/2] tcl: Handle environment variables which are unset."):
> > This allows wrappers such as the standalone wrapper to do
> >      OSSTEST_SIMULATE=$foo ./sg-run-job
> > and not worry if $foo is unset.
> > 
> > Do likewise for OSSTEST_TCL_JOBDB_DEBUG.
> > 
> > Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
> > Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
> 
> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
> 
> FWIW

Well, it shows I didn't botch your instructions ;-)