/[vps]/baselayout-vserver/branches/baselayout-1_12/src/awk/cachedepends.awk
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Contents of /baselayout-vserver/branches/baselayout-1_12/src/awk/cachedepends.awk

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Revision 276 - (show annotations) (download)
Thu Mar 9 10:07:19 2006 UTC (12 years, 7 months ago) by phreak
File size: 5359 byte(s)
Merging r1939
1 # Copyright 1999-2004 Gentoo Foundation
2 # Distributed under the terms of the GNU General Public License v2
3 # $Header$
4
5 function print_start() {
6 print "source /sbin/functions.sh" >> TMPCACHE
7 print "" >> TMPCACHE
8 print "need() {" >> TMPCACHE
9 print " echo \"NEED $*\"; return 0" >> TMPCACHE
10 print "}" >> TMPCACHE
11 print "" >> TMPCACHE
12 print "use() {" >> TMPCACHE
13 print " echo \"USE $*\"; return 0" >> TMPCACHE
14 print "}" >> TMPCACHE
15 print "" >> TMPCACHE
16 print "before() {" >> TMPCACHE
17 print " echo \"BEFORE $*\"; return 0" >> TMPCACHE
18 print "}" >> TMPCACHE
19 print "" >> TMPCACHE
20 print "after() {" >> TMPCACHE
21 print " echo \"AFTER $*\"; return 0" >> TMPCACHE
22 print "}" >> TMPCACHE
23 print "" >> TMPCACHE
24 print "provide() {" >> TMPCACHE
25 print " echo \"PROVIDE $*\"; return 0" >> TMPCACHE
26 print "}" >> TMPCACHE
27 print "" >> TMPCACHE
28 }
29
30 function print_header1(mtime) {
31 print "#*** " MYFILENAME " ***" >> TMPCACHE
32 print "" >> TMPCACHE
33 print "SVCNAME=\"" MYFILENAME "\"" >> TMPCACHE
34 print "SVCNAME=\"${SVCNAME##*/}\"" >> TMPCACHE
35
36 # Support deprected myservice variable
37 print "myservice=\"${SVCNAME}\"" >> TMPCACHE
38
39 print "echo \"RCSCRIPT ${SVCNAME}\"" >> TMPCACHE
40 print "" >> TMPCACHE
41 print "echo \"MTIME " mtime "\"" >> TMPCACHE
42 print "" >> TMPCACHE
43 }
44
45 function print_header2(mtime) {
46 print "(" >> TMPCACHE
47 print " # Get settings for rc-script ..." >> TMPCACHE
48 print "" >> TMPCACHE
49 print " [ -e /etc/conf.d/net ] && \\" >> TMPCACHE
50 print " [ \"${SVCNAME%%.*}\" = \"net\" ] && \\" >> TMPCACHE
51 print " [ \"${SVCNAME##*.}\" != \"${SVCNAME}\" ] && source /etc/conf.d/net" >> TMPCACHE
52 print "" >> TMPCACHE
53 print " [ -e \"/etc/conf.d/${SVCNAME}\" ] && source \"/etc/conf.d/${SVCNAME}\"" >> TMPCACHE
54 print "" >> TMPCACHE
55 print " [ -e /etc/rc.conf ] && source /etc/rc.conf" >> TMPCACHE
56 print "" >> TMPCACHE
57 print " depend() {" >> TMPCACHE
58 print " return 0" >> TMPCACHE
59 print " }" >> TMPCACHE
60 print "" >> TMPCACHE
61 }
62
63 function print_end() {
64 print "" >> TMPCACHE
65 print " depend" >> TMPCACHE
66 print ")" >> TMPCACHE
67 print "" >> TMPCACHE
68 }
69
70 BEGIN {
71
72 extension("/lib/rcscripts/filefuncs.so", "dlload")
73
74 # Get our environment variables
75 SVCDIR = ENVIRON["SVCDIR"]
76 if (SVCDIR == "") {
77 eerror("Could not get SVCDIR!")
78 exit 1
79 }
80
81 # Since this could be called more than once simultaneously, use a
82 # temporary cache and rename when finished. See bug 47111
83 ("/bin/mktemp "SVCDIR"/depcache.XXXXXXX") | getline TMPCACHE
84 if (TMPCACHE == "") {
85 eerror("Failed to create temporary cache!")
86 exit 1
87 }
88
89 pipe = "ls /etc/init.d/*"
90 while ((pipe | getline tmpstring) > 0)
91 scripts = scripts " " tmpstring
92 close(pipe)
93
94 split(scripts, TMPRCSCRIPTS)
95
96 # Make sure that its a file we are working with,
97 # and do not process scripts, source or backup files.
98 for (x in TMPRCSCRIPTS)
99 if (((isfile(TMPRCSCRIPTS[x])) || (islink(TMPRCSCRIPTS[x]))) &&
100 (TMPRCSCRIPTS[x] !~ /((\.(c|bak))|\~)$/)) {
101
102 RCCOUNT++
103
104 RCSCRIPTS[RCCOUNT] = TMPRCSCRIPTS[x]
105 }
106
107 if (RCCOUNT == 0) {
108 eerror("No scripts to process!")
109 dosystem("rm -f "TMPCACHE)
110 exit 1
111 }
112
113 print_start()
114
115 for (count = 1;count <= RCCOUNT;count++) {
116
117 MYFNR = 1
118 MYFILENAME = RCSCRIPTS[count]
119 STAT_DATA[1] = 1
120
121 while (((getline < (RCSCRIPTS[count])) > 0) && (!NEXTFILE)) {
122
123 # If line start with a '#' and is the first line
124 if (($0 ~ /^[[:space:]]*#/) && (MYFNR == 1)) {
125
126 # Remove any spaces and tabs
127 gsub(/[[:space:]]+/, "")
128
129 if ($0 == "#!/sbin/runscript") {
130
131 if (RCSCRIPTS[count] ~ /\.sh$/) {
132
133 ewarn(RCSCRIPTS[count] " is invalid (should not end with '.sh')")
134 NEXTFILE = 1
135 continue
136 }
137
138 if (stat(MYFILENAME, STAT_DATA) != 0)
139 ewarn("Could not stat \"" MYFILENAME "\"")
140
141 ISRCSCRIPT = 1
142 print_header1(STAT_DATA["mtime"])
143 } else {
144
145 NEXTFILE = 1
146 continue
147 }
148 }
149
150 # Filter out comments and only process if its a rcscript
151 if (($0 !~ /^[[:space:]]*#/) && (ISRCSCRIPT)) {
152
153 # If line contain 'depend()', set GOTDEPEND to 1
154 if ($0 ~ /depend[[:space:]]*\(\)/) {
155
156 GOTDEPEND = 1
157
158 print_header2()
159 print " # Actual depend() function ..." >> TMPCACHE
160 }
161
162 # We have the depend function...
163 if (GOTDEPEND) {
164
165 # Basic theory is that COUNT will be 0 when we
166 # have matching '{' and '}'
167 COUNT += gsub(/{/, "{")
168 COUNT -= gsub(/}/, "}")
169
170 # This is just to verify that we have started with
171 # the body of depend()
172 SBCOUNT += gsub(/{/, "{")
173
174 # Make sure depend() contain something, else bash
175 # errors out (empty function).
176 if ((SBCOUNT > 0) && (COUNT == 0))
177 print " \treturn 0" >> TMPCACHE
178
179 # Print the depend() function
180 print " " $0 >> TMPCACHE
181
182 # If COUNT=0, and SBCOUNT>0, it means we have read
183 # all matching '{' and '}' for depend(), so stop.
184 if ((SBCOUNT > 0) && (COUNT == 0)) {
185
186 GOTDEPEND = 0
187 COUNT = 0
188 SBCOUNT = 0
189 ISRCSCRIPT = 0
190
191 print_end()
192
193 NEXTFILE = 1
194 continue
195 }
196 }
197 }
198
199 MYFNR++
200 }
201
202 close(RCSCRIPTS[count])
203
204 NEXTFILE = 0
205
206 }
207
208
209 assert(dosystem("rm -f "SVCDIR"/depcache"), "system(rm -f "SVCDIR"/depcache)")
210 assert(dosystem("mv "TMPCACHE" "SVCDIR"/depcache"), "system(mv "TMPCACHE" "SVCDIR"/depcache)")
211 }
212
213
214 # vim:ts=4

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