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497 stable sorted CPE array (JSON and SPDX) (#522)

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* add small sorting change to our specificity

Signed-off-by: Christopher Angelo Phillips <christopher.phillips@anchore.com>
This commit is contained in:
Christopher Angelo Phillips 2021-10-01 15:31:17 -04:00 committed by GitHub
parent 6480f06173
commit 5e4b668e5a
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 30 additions and 3 deletions
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12
syft/pkg/cataloger/common/cpe/sort_by_specificity.go
View File

@ -18,10 +18,18 @@ func (c BySpecificity) Less(i, j int) bool {
iScore := weightedCountForSpecifiedFields(c[i])
jScore := weightedCountForSpecifiedFields(c[j])
if iScore == jScore {
// check weighted sort first
if iScore != jScore {
return iScore > jScore
}
// sort longer fields to top
if countFieldLength(c[i]) != countFieldLength(c[j]) {
return countFieldLength(c[i]) > countFieldLength(c[j])
}
return iScore > jScore
// if score and length are equal then text sort
return c[i].BindToFmtString() < c[j].BindToFmtString()
}
func countFieldLength(cpe wfn.Attributes) int {

19
syft/pkg/cataloger/common/cpe/sort_by_specificity_test.go
View File

@ -80,6 +80,25 @@ func TestCPESpecificity(t *testing.T) {
mustCPE("cpe:2.3:a:1:*:333:*:*:*:*:*:*:*"),
},
},
{
name: "sort by mix of field length, specificity, dash",
input: []pkg.CPE{
mustCPE("cpe:2.3:a:alpine:alpine_keys:2.3-r1:*:*:*:*:*:*:*"),
mustCPE("cpe:2.3:a:alpine_keys:alpine_keys:2.3-r1:*:*:*:*:*:*:*"),
mustCPE("cpe:2.3:a:alpine-keys:alpine_keys:2.3-r1:*:*:*:*:*:*:*"),
mustCPE("cpe:2.3:a:alpine:alpine-keys:2.3-r1:*:*:*:*:*:*:*"),
mustCPE("cpe:2.3:a:alpine-keys:alpine-keys:2.3-r1:*:*:*:*:*:*:*"),
mustCPE("cpe:2.3:a:alpine_keys:alpine-keys:2.3-r1:*:*:*:*:*:*:*"),
},
expected: []pkg.CPE{
mustCPE("cpe:2.3:a:alpine-keys:alpine-keys:2.3-r1:*:*:*:*:*:*:*"),
mustCPE("cpe:2.3:a:alpine-keys:alpine_keys:2.3-r1:*:*:*:*:*:*:*"),
mustCPE("cpe:2.3:a:alpine_keys:alpine-keys:2.3-r1:*:*:*:*:*:*:*"),
mustCPE("cpe:2.3:a:alpine_keys:alpine_keys:2.3-r1:*:*:*:*:*:*:*"),
mustCPE("cpe:2.3:a:alpine:alpine-keys:2.3-r1:*:*:*:*:*:*:*"),
mustCPE("cpe:2.3:a:alpine:alpine_keys:2.3-r1:*:*:*:*:*:*:*"),
},
},
}
for _, test := range tests {