Many fixes to snapshot scripts

sfsnapshotgit: - Use fetch/reset instead to pull to avoid merges on forced updates sfsnapshot-upload: - Fix link deletion walking the entire home dir - Allow CLEAN_TIME=0 (no retention) - Re-add per-branch links when CLEAN_TIME > 0 - Add many comments
author: dermoth <dermoth@nagiosplugins.org> 2009-11-11 10:23:57 +0000
committer: dermoth <dermoth@nagiosplugins.org> 2009-11-11 10:34:22 +0000
commit: bb193973a8767547edc8626df6cea7d154812de5 (patch)
tree: 153a37369b22069a3b82289e1ebec7ef225ba854 /tools/sfsnapshot-upload
parent: 2b442ff177751c5ea17e792c10e6d50d7b922b08 (diff)
download: monitoring-plugins-bb193973a8767547edc8626df6cea7d154812de5.tar.gz
1 files changed, 40 insertions, 20 deletions
diff --git a/tools/sfsnapshot-upload b/tools/sfsnapshot-upload
index e0a2300c..5134e000 100755
--- a/tools/sfsnapshot-upload
+++ b/tools/sfsnapshot-upload
@@ -8,7 +8,7 @@
 # Handle command errors (-e) and coder sleep deprivation issues (-u)
 set -eu
-trap 'echo "An error occurred at line $LINENO"; exit 1' EXIT
+trap 'echo "An error occurred in sfsnapshot-upload at line $LINENO"; exit 1' EXIT
 # This can be used to override the default in sfsnapshotgit:
 export SFSNAP_REPO=~/staging/nagiosplugins
@@ -19,7 +19,7 @@ export SFSNAP_DEST=~/staging/snapshot
 # The file we'll use to create the snapshot
 sfsnapshot=~/sfsnapshotgit
-# Retention time for snapshots (in minutes)
+# Retention time for snapshots (in minutes), 0 for no retention.
 CLEAN_TIME=1440
 # Where to place the generated files
@@ -39,16 +39,31 @@ else
        HEADS=$@
 fi
+# If we don't keep old snapshots we can clean up all links now
+if [ $CLEAN_TIME -eq 0 ]
+then
+        find $SFSNAP_DEST -type l -name '*.gz' -delete
+fi
 for head in $HEADS ; do
+        # This runs the actual snapshot code. It creates new snapshots if needed and always
+        # return the current snapshot file (even if it wasn't modified).
        file=$($sfsnapshot $head)
+        # Create main head link
        ln -sf $file $SFSNAP_DEST/nagios-plugins-$head.tar.gz
-        # Keep links by branch name too
-        [ -f "$SFSNAP_DEST/nagios-plugins-$head-${file#nagios-plugins-}" ] || ln -s $file $SFSNAP_DEST/nagios-plugins-$head-${file#nagios-plugins-}
+        # Keep links by branch name too if we keep old snapshots, so we can keep tracks of them
+        if [ $CLEAN_TIME -gt 0 -a ! -e "$SFSNAP_DEST/nagios-plugins-$head-${file#nagios-plugins-}" ]
+        then
+                ln -s $file $SFSNAP_DEST/nagios-plugins-$head-${file#nagios-plugins-}
+        fi
+        # Cleanup and re-create backward-compatibility links
        if [ "$head" == "master" ]
        then
                for cclean in $COMPATCLEANUP
                do
-                        find . -type l -name "nagios-plugins-$cclean.tar.gz" -delete
+                        find $SFSNAP_DEST -type l -name "nagios-plugins-$cclean.tar.gz" -delete
                done
                for compat in $COMPATLINKS
                do
@@ -57,40 +72,45 @@ for head in $HEADS ; do
        fi
 done
-# Cleanup old snapshots and links...
 cd $SFSNAP_DEST
-# Clean up links older than $CLEAN_TIME
+# Clean up links older than $CLEAN_TIME if needed
-find . -type l -name '*.gz' -mmin +$CLEAN_TIME -delete
+if [ $CLEAN_TIME -gt 0 ]
+then
+        find . -type l -name '*.gz' -mmin +$CLEAN_TIME -delete
+fi
-# Then clean up files that we don't need
+# Now clean up files that we don't need
+# 1. loop over actual snapshots
 for dest in `find . -type f -name '*.gz' |xargs -n 1 basename`
 do
-        # Loop over the list of linked-to files
+        # 2. Loop over the list of linked-to files
-        for current in `find .  -type l -name '*.gz' |xargs -n 1 readlink | uniq`
+        for current in `find . -type l -name '*.gz' |xargs -n 1 readlink | sort | uniq`
        do
                if [ "$current" == "$dest" ]
                then
+                        # File is being linked to - don't delete (continue first loop)
                        continue 2
                fi
        done
+        # No link to this file, we can drop it
        rm -f $dest
 done
 # Create MD5 sum
 cat <<-END_README > README
-This is the latest snapshot of nagiosplug, consisting of the following
+        This is the latest snapshot of nagiosplug, consisting of the following
-head(s):
+        head(s):
-        $HEADS
+                $HEADS
-The nagios-plugins-<head>.tar.gz link will always point to the latest
+        The nagios-plugins-<head>.tar.gz link will always point to the latest
-corresponding snapshot (nagios-plugins-<git-describe>.tar.gz).
+        corresponding snapshot (nagios-plugins-<git-describe>.tar.gz).
-For backward-compatibility, the nagios-plugins-HEAD.tar.gz and
+        For backward-compatibility, the nagios-plugins-HEAD.tar.gz and
-nagios-plugins-trunk-<ts> point to their corresponding "master" head.
+        nagios-plugins-trunk-<ts> point to their corresponding "master" head.
-The MD5SUM are:
+        The MD5SUM are:
-END_README
+        END_README
 md5sum *.gz | tee -a README > MD5SUM
 # Sync the files
author	dermoth <dermoth@nagiosplugins.org>	2009-11-11 10:23:57 +0000
committer	dermoth <dermoth@nagiosplugins.org>	2009-11-11 10:34:22 +0000
commit	bb193973a8767547edc8626df6cea7d154812de5 (patch)
tree	153a37369b22069a3b82289e1ebec7ef225ba854 /tools/sfsnapshot-upload
parent	2b442ff177751c5ea17e792c10e6d50d7b922b08 (diff)
download	monitoring-plugins-bb193973a8767547edc8626df6cea7d154812de5.tar.gz

diff --git a/tools/sfsnapshot-upload b/tools/sfsnapshot-upload index e0a2300c..5134e000 100755 --- a/tools/sfsnapshot-upload +++ b/tools/sfsnapshot-upload
@@ -8,7 +8,7 @@
8		8
9	# Handle command errors (-e) and coder sleep deprivation issues (-u)	9	# Handle command errors (-e) and coder sleep deprivation issues (-u)
10	set -eu	10	set -eu
11	trap 'echo "An error occurred at line $LINENO"; exit 1' EXIT	11	trap 'echo "An error occurred in sfsnapshot-upload at line $LINENO"; exit 1' EXIT
12		12
13	# This can be used to override the default in sfsnapshotgit:	13	# This can be used to override the default in sfsnapshotgit:
14	export SFSNAP_REPO=~/staging/nagiosplugins	14	export SFSNAP_REPO=~/staging/nagiosplugins
@@ -19,7 +19,7 @@ export SFSNAP_DEST=~/staging/snapshot
19	# The file we'll use to create the snapshot	19	# The file we'll use to create the snapshot
20	sfsnapshot=~/sfsnapshotgit	20	sfsnapshot=~/sfsnapshotgit
21		21
22	# Retention time for snapshots (in minutes)	22	# Retention time for snapshots (in minutes), 0 for no retention.
23	CLEAN_TIME=1440	23	CLEAN_TIME=1440
24		24
25	# Where to place the generated files	25	# Where to place the generated files
@@ -39,16 +39,31 @@ else
39	HEADS=$@	39	HEADS=$@
40	fi	40	fi
41		41
		42	# If we don't keep old snapshots we can clean up all links now
		43	if [ $CLEAN_TIME -eq 0 ]
		44	then
		45	find $SFSNAP_DEST -type l -name '*.gz' -delete
		46	fi
		47
42	for head in $HEADS ; do	48	for head in $HEADS ; do
		49	# This runs the actual snapshot code. It creates new snapshots if needed and always
		50	# return the current snapshot file (even if it wasn't modified).
43	file=$($sfsnapshot $head)	51	file=$($sfsnapshot $head)
		52	# Create main head link
44	ln -sf $file $SFSNAP_DEST/nagios-plugins-$head.tar.gz	53	ln -sf $file $SFSNAP_DEST/nagios-plugins-$head.tar.gz
45	# Keep links by branch name too	54
46	[ -f "$SFSNAP_DEST/nagios-plugins-$head-${file#nagios-plugins-}" ] \|\| ln -s $file $SFSNAP_DEST/nagios-plugins-$head-${file#nagios-plugins-}	55	# Keep links by branch name too if we keep old snapshots, so we can keep tracks of them
		56	if [ $CLEAN_TIME -gt 0 -a ! -e "$SFSNAP_DEST/nagios-plugins-$head-${file#nagios-plugins-}" ]
		57	then
		58	ln -s $file $SFSNAP_DEST/nagios-plugins-$head-${file#nagios-plugins-}
		59	fi
		60
		61	# Cleanup and re-create backward-compatibility links
47	if [ "$head" == "master" ]	62	if [ "$head" == "master" ]
48	then	63	then
49	for cclean in $COMPATCLEANUP	64	for cclean in $COMPATCLEANUP
50	do	65	do
51	find . -type l -name "nagios-plugins-$cclean.tar.gz" -delete	66	find $SFSNAP_DEST -type l -name "nagios-plugins-$cclean.tar.gz" -delete
52	done	67	done
53	for compat in $COMPATLINKS	68	for compat in $COMPATLINKS
54	do	69	do
@@ -57,40 +72,45 @@ for head in $HEADS ; do
57	fi	72	fi
58	done	73	done
59		74
60	# Cleanup old snapshots and links...
61	cd $SFSNAP_DEST	75	cd $SFSNAP_DEST
62		76
63	# Clean up links older than $CLEAN_TIME	77	# Clean up links older than $CLEAN_TIME if needed
64	find . -type l -name '*.gz' -mmin +$CLEAN_TIME -delete	78	if [ $CLEAN_TIME -gt 0 ]
		79	then
		80	find . -type l -name '*.gz' -mmin +$CLEAN_TIME -delete
		81	fi
65		82
66	# Then clean up files that we don't need	83	# Now clean up files that we don't need
		84	# 1. loop over actual snapshots
67	for dest in `find . -type f -name '*.gz' \|xargs -n 1 basename`	85	for dest in `find . -type f -name '*.gz' \|xargs -n 1 basename`
68	do	86	do
69	# Loop over the list of linked-to files	87	# 2. Loop over the list of linked-to files
70	for current in `find . -type l -name '*.gz' \|xargs -n 1 readlink \| uniq`	88	for current in `find . -type l -name '*.gz' \|xargs -n 1 readlink \| sort \| uniq`
71	do	89	do
72	if [ "$current" == "$dest" ]	90	if [ "$current" == "$dest" ]
73	then	91	then
		92	# File is being linked to - don't delete (continue first loop)
74	continue 2	93	continue 2
75	fi	94	fi
76	done	95	done
		96	# No link to this file, we can drop it
77	rm -f $dest	97	rm -f $dest
78	done	98	done
79		99
80	# Create MD5 sum	100	# Create MD5 sum
81	cat <<-END_README > README	101	cat <<-END_README > README
82	This is the latest snapshot of nagiosplug, consisting of the following	102	This is the latest snapshot of nagiosplug, consisting of the following
83	head(s):	103	head(s):
84	$HEADS	104	$HEADS
85		105
86	The nagios-plugins-<head>.tar.gz link will always point to the latest	106	The nagios-plugins-<head>.tar.gz link will always point to the latest
87	corresponding snapshot (nagios-plugins-<git-describe>.tar.gz).	107	corresponding snapshot (nagios-plugins-<git-describe>.tar.gz).
88		108
89	For backward-compatibility, the nagios-plugins-HEAD.tar.gz and	109	For backward-compatibility, the nagios-plugins-HEAD.tar.gz and
90	nagios-plugins-trunk-<ts> point to their corresponding "master" head.	110	nagios-plugins-trunk-<ts> point to their corresponding "master" head.
91		111
92	The MD5SUM are:	112	The MD5SUM are:
93	END_README	113	END_README
94	md5sum *.gz \| tee -a README > MD5SUM	114	md5sum *.gz \| tee -a README > MD5SUM
95		115
96	# Sync the files	116	# Sync the files