Annotation of /bin/autobuild

#! /bin/bash
#
# + fetch new CCF deliveries
# + build latest files
# + move new files to CCF repository
#
# $Id: autobuild,v 1.12 2021/06/28 15:44:20 ccflib Exp $
#

# Name and initialize $LOG file

LOG=$HOME/autobuild.log
[ -f "$LOG" ] && rm -f $LOG
touch $LOG

# Name and initialize HEAD_MESSAGE and MESSAGE to be sued for mail

HEAD_MESSAGE="$HOME/head_message" 
MESSAGE="$HOME/MESSAGE"

[ -f "$HEAD_MESSAGE" ] && rm -f $HEAD_MESSAGE
[ -f "$MESSAGE" ] && rm -f $MESSAGE

touch $HEAD_MESSAGE $MESSAGE

echo "CCF autobuild run at `date` on `hostname`" >> $HEAD_MESSAGE
echo "-----------------------------------------------------------------------" >> $HEAD_MESSAGE

cat $HEAD_MESSAGE >> $MESSAGE

me=`basename $0` 
 

# Redirects stderr (2) to stdout (1) 

exec 2>&1

# Redirects the stdout to $LOG for the whole script

exec > $LOG

echo "-> $me running on "`date`
echo 


# Source configuration settings

. $HOME/bin/ccflib.cfg

# Add $HOME/bin to $PATH

export PATH=$HOME/bin:$PATH

# Name the lock file and define function unlock

LOCK=$HOME/autobuild.lck
unlock () {
  rm -f $LOCK
}

# Do the work

count=0
maxcount=10
trap unlock EXIT

while [ -e $LOCK -a $count -lt $maxcount ] ; do
  count=$[count + 1]
  echo $me: $LOCK exists. Sleeping 60s [$count]
  sleep 60 
done

if [ $count -lt $maxcount ] ; then
  touch $LOCK
#  trap unlock EXIT
  # Get nay new CCF from incoming
  getdeliveries 
  # Let do the two next steps in this way so as
  # the acceptbuild will be done ONLY when buildlatest 
  # exits with return state 0. For example, if 
  # buildlatest has nothing to build the exit state is -1
  # therefore acceptbuild is not executed. 
  buildlatest && acceptbuild
else
  echo $me: $LOCK exists, and slept enough. Giving up.
  exit 1
fi

# Reset redicrections to avoid unexpected results

exec 1>&2 2>&-


# Capture "Nothing to build" in nothingtobuild. 
# If nothingtobuild = 0 there were builds.
# If nothingtobuild = 1, nothing was built. 
# In case nothing was built, just simply inform the 
# designated ccflib admin. Otherwise, do nothing until
# later on the do_checkupdates will report the proper 
# mail distribution list.

nothingtobuild=`cat $LOG | grep -c "Nothing to build"`

cat $LOG >> $MESSAGE


# Define mail subject

subject="CCF autobuild run at `date` on `hostname`"

# Use mailx to send messages instead of sendmail

if [ "$nothingtobuild" != "0" ] ; then
        mailx -s "$subject" eduardo.ojero@sciops.esa.int < $MESSAGE 
fi
1	ccflib	1.5	#! /bin/bash
2	ccflib	1.1	#
3			# + fetch new CCF deliveries
4			# + build latest files
5			# + move new files to CCF repository
6			#
7	ccflib	1.13	# $Id: autobuild,v 1.12 2021/06/28 15:44:20 ccflib Exp $
8	ccflib	1.3	#
9	ccflib	1.7
10	ccflib	1.9	# Name and initialize $LOG file
11
12			LOG=$HOME/autobuild.log
13			[ -f "$LOG" ] && rm -f $LOG
14			touch $LOG
15
16			# Name and initialize HEAD_MESSAGE and MESSAGE to be sued for mail
17
18			HEAD_MESSAGE="$HOME/head_message"
19			MESSAGE="$HOME/MESSAGE"
20
21			[ -f "$HEAD_MESSAGE" ] && rm -f $HEAD_MESSAGE
22			[ -f "$MESSAGE" ] && rm -f $MESSAGE
23
24			touch $HEAD_MESSAGE $MESSAGE
25
26			echo "CCF autobuild run at `date` on `hostname`" >> $HEAD_MESSAGE
27			echo "-----------------------------------------------------------------------" >> $HEAD_MESSAGE
28
29	ccflib	1.10	cat $HEAD_MESSAGE >> $MESSAGE
30	ccflib	1.9
31			me=`basename $0`
32
33
34			# Redirects stderr (2) to stdout (1)
35
36			exec 2>&1
37
38			# Redirects the stdout to $LOG for the whole script
39
40			exec > $LOG
41
42			echo "-> $me running on "`date`
43			echo
44
45
46			# Source configuration settings
47
48	ccflib	1.2	. $HOME/bin/ccflib.cfg
49	ccflib	1.5
50	ccflib	1.9	# Add $HOME/bin to $PATH
51
52	ccflib	1.1	export PATH=$HOME/bin:$PATH
53	ccflib	1.9
54			# Name the lock file and define function unlock
55	ccflib	1.1
56			LOCK=$HOME/autobuild.lck
57			unlock () {
58			rm -f $LOCK
59			}
60	ccflib	1.5
61	ccflib	1.9	# Do the work
62
63	ccflib	1.1	count=0
64			maxcount=10
65	ccflib	1.7	trap unlock EXIT
66
67	ccflib	1.1	while [ -e $LOCK -a $count -lt $maxcount ] ; do
68			count=$[count + 1]
69	ccflib	1.7	echo $me: $LOCK exists. Sleeping 60s [$count]
70			sleep 60
71	ccflib	1.1	done
72	ccflib	1.9
73	ccflib	1.1	if [ $count -lt $maxcount ] ; then
74			touch $LOCK
75	ccflib	1.7	# trap unlock EXIT
76	ccflib	1.9	# Get nay new CCF from incoming
77	ccflib	1.1	getdeliveries
78	ccflib	1.9	# Let do the two next steps in this way so as
79			# the acceptbuild will be done ONLY when buildlatest
80			# exits with return state 0. For example, if
81			# buildlatest has nothing to build the exit state is -1
82			# therefore acceptbuild is not executed.
83	ccflib	1.1	buildlatest && acceptbuild
84			else
85			echo $me: $LOCK exists, and slept enough. Giving up.
86			exit 1
87			fi
88
89	ccflib	1.9	# Reset redicrections to avoid unexpected results
90
91			exec 1>&2 2>&-
92
93
94	ccflib	1.13	# Capture "Nothing to build" in nothingtobuild.
95			# If nothingtobuild = 0 there were builds.
96			# If nothingtobuild = 1, nothing was built.
97			# In case nothing was built, just simply inform the
98			# designated ccflib admin. Otherwise, do nothing until
99			# later on the do_checkupdates will report the proper
100			# mail distribution list.
101	ccflib	1.9
102			nothingtobuild=`cat $LOG \| grep -c "Nothing to build"`
103
104	ccflib	1.10	cat $LOG >> $MESSAGE
105	ccflib	1.6
106	ccflib	1.7
107	ccflib	1.9	# Define mail subject
108	ccflib	1.7
109	ccflib	1.9	subject="CCF autobuild run at `date` on `hostname`"
110	ccflib	1.1
111	ccflib	1.9	# Use mailx to send messages instead of sendmail
112	ccflib	1.1
113	ccflib	1.9	if [ "$nothingtobuild" != "0" ] ; then
114			mailx -s "$subject" eduardo.ojero@sciops.esa.int < $MESSAGE
115	ccflib	1.1	fi