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Sort sysd-rules-patterns by descending pattern length.

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This commit is contained in:
Roland McGrath
2013-06-17 09:54:51 -07:00
parent 346d65b33a
commit 12086fb483
5 changed files with 32 additions and 9 deletions
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24
scripts/sysd-rules.awk
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@ -14,6 +14,25 @@ BEGIN {
nsysdirs = split(config_sysdirs, sysdirs);
npatterns = split(sysd_rules_patterns, patterns);
# Each element of $(sysd-rules-patterns) is a pair TARGET:DEP.
# They are no in particular order. We need to sort them so that
# the longest TARGET is first, and, among elements with the same
# TARGET, the longest DEP is first.
for (i = 1; i <= npatterns; ++i) {
if (split(patterns[i], td, ":") != 2) {
msg = "bad sysd-rules-patterns element '" patterns[i] "'";
print msg > "/dev/stderr";
exit 2;
}
target_order = sprintf("%09d", npatterns + 1 - length(td[1]));
dep_order = sprintf("%09d", npatterns - length(td[2]));
sort_patterns[target_order SUBSEP dep_order] = patterns[i];
}
asorti(sort_patterns, map_patterns);
for (i in map_patterns) {
patterns[i] = sort_patterns[map_patterns[i]];
}
for (sysdir_idx = 1; sysdir_idx <= nsysdirs; ++sysdir_idx) {
dir = sysdirs[sysdir_idx];
if (dir !~ /^\//) dir = "$(..)" dir;
@ -28,10 +47,7 @@ BEGIN {
o = suffixes[suffix_idx];
for (pattern_idx = 1; pattern_idx <= npatterns; ++pattern_idx) {
pattern = patterns[pattern_idx];
if (split(pattern, td, ":") != 2) {
print "bad sysd-rules-patterns element '" pattern "'" > "/dev/stderr";
exit 2;
}
split(pattern, td, ":");
target_pattern = td[1];
dep_pattern = td[2];
if (target_pattern == "%") {