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Remove hostlist, now in cc-lib

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This commit is contained in:
Thomas Röhl 2025-04-29 16:48:05 +02:00
parent beeb8817d7
commit d5cba68b58
2 changed files with 0 additions and 251 deletions
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125
pkg/hostlist/hostlist.go
View File

@ -1,125 +0,0 @@
package hostlist
import (
"fmt"
"regexp"
"sort"
"strconv"
"strings"
)
func Expand(in string) (result []string, err error) {
// Create ranges regular expression
reStNumber := "[[:digit:]]+"
reStRange := reStNumber + "-" + reStNumber
reStOptionalNumberOrRange := "(" + reStNumber + ",|" + reStRange + ",)*"
reStNumberOrRange := "(" + reStNumber + "|" + reStRange + ")"
reStBraceLeft := "[[]"
reStBraceRight := "[]]"
reStRanges := reStBraceLeft +
reStOptionalNumberOrRange +
reStNumberOrRange +
reStBraceRight
reRanges := regexp.MustCompile(reStRanges)
// Create host list regular expression
reStDNSChars := "[a-zA-Z0-9-]+"
reStPrefix := "^(" + reStDNSChars + ")"
reStOptionalSuffix := "(" + reStDNSChars + ")?"
re := regexp.MustCompile(reStPrefix + "([[][0-9,-]+[]])?" + reStOptionalSuffix)
// Remove all delimiters from the input
in = strings.TrimLeft(in, ", ")
for len(in) > 0 {
if v := re.FindStringSubmatch(in); v != nil {
// Remove matched part from the input
lenPrefix := len(v[0])
in = in[lenPrefix:]
// Remove all delimiters from the input
in = strings.TrimLeft(in, ", ")
// matched prefix, range and suffix
hlPrefix := v[1]
hlRanges := v[2]
hlSuffix := v[3]
// Single node without ranges
if hlRanges == "" {
result = append(result, hlPrefix)
continue
}
// Node with ranges
if v := reRanges.FindStringSubmatch(hlRanges); v != nil {
// Remove braces
hlRanges = hlRanges[1 : len(hlRanges)-1]
// Split host ranges at ,
for _, hlRange := range strings.Split(hlRanges, ",") {
// Split host range at -
RangeStartEnd := strings.Split(hlRange, "-")
// Range is only a single number
if len(RangeStartEnd) == 1 {
result = append(result, hlPrefix+RangeStartEnd[0]+hlSuffix)
continue
}
// Range has a start and an end
widthRangeStart := len(RangeStartEnd[0])
widthRangeEnd := len(RangeStartEnd[1])
iStart, _ := strconv.ParseUint(RangeStartEnd[0], 10, 64)
iEnd, _ := strconv.ParseUint(RangeStartEnd[1], 10, 64)
if iStart > iEnd {
return nil, fmt.Errorf("single range start is greater than end: %s", hlRange)
}
// Create print format string for range numbers
doPadding := widthRangeStart == widthRangeEnd
widthPadding := widthRangeStart
var formatString string
if doPadding {
formatString = "%0" + fmt.Sprint(widthPadding) + "d"
} else {
formatString = "%d"
}
formatString = hlPrefix + formatString + hlSuffix
// Add nodes from this range
for i := iStart; i <= iEnd; i++ {
result = append(result, fmt.Sprintf(formatString, i))
}
}
} else {
return nil, fmt.Errorf("not at hostlist range: %s", hlRanges)
}
} else {
return nil, fmt.Errorf("not a hostlist: %s", in)
}
}
if result != nil {
// sort
sort.Strings(result)
// uniq
previous := 1
for current := 1; current < len(result); current++ {
if result[current-1] != result[current] {
if previous != current {
result[previous] = result[current]
}
previous++
}
}
result = result[:previous]
}
return
}

126
pkg/hostlist/hostlist_test.go
View File

@ -1,126 +0,0 @@
package hostlist
import (
"testing"
)
func TestExpand(t *testing.T) {
// Compare two slices of strings
equal := func(a, b []string) bool {
if len(a) != len(b) {
return false
}
for i, v := range a {
if v != b[i] {
return false
}
}
return true
}
type testDefinition struct {
input string
resultExpected []string
errorExpected bool
}
expandTests := []testDefinition{
{
// Single node
input: "n1",
resultExpected: []string{"n1"},
errorExpected: false,
},
{
// Single node, duplicated
input: "n1,n1",
resultExpected: []string{"n1"},
errorExpected: false,
},
{
// Single node with padding
input: "n[01]",
resultExpected: []string{"n01"},
errorExpected: false,
},
{
// Single node with suffix
input: "n[01]-p",
resultExpected: []string{"n01-p"},
errorExpected: false,
},
{
// Multiple nodes with a single range
input: "n[1-2]",
resultExpected: []string{"n1", "n2"},
errorExpected: false,
},
{
// Multiple nodes with a single range and a single index
input: "n[1-2,3]",
resultExpected: []string{"n1", "n2", "n3"},
errorExpected: false,
},
{
// Multiple nodes with different prefixes
input: "n[1-2],m[1,2]",
resultExpected: []string{"m1", "m2", "n1", "n2"},
errorExpected: false,
},
{
// Multiple nodes with different suffixes
input: "n[1-2]-p,n[1,2]-q",
resultExpected: []string{"n1-p", "n1-q", "n2-p", "n2-q"},
errorExpected: false,
},
{
// Multiple nodes with and without node ranges
input: " n09, n[01-04,06-07,09] , , n10,n04",
resultExpected: []string{"n01", "n02", "n03", "n04", "n06", "n07", "n09", "n10"},
errorExpected: false,
},
{
// Forbidden DNS character
input: "n@",
resultExpected: []string{},
errorExpected: true,
},
{
// Forbidden range
input: "n[1-2-2,3]",
resultExpected: []string{},
errorExpected: true,
},
{
// Forbidden range limits
input: "n[2-1]",
resultExpected: []string{},
errorExpected: true,
},
}
for _, expandTest := range expandTests {
result, err := Expand(expandTest.input)
hasError := err != nil
if hasError != expandTest.errorExpected && hasError {
t.Errorf("Expand('%s') failed: unexpected error '%v'",
expandTest.input, err)
continue
}
if hasError != expandTest.errorExpected && !hasError {
t.Errorf("Expand('%s') did not fail as expected: got result '%+v'",
expandTest.input, result)
continue
}
if !hasError && !equal(result, expandTest.resultExpected) {
t.Errorf("Expand('%s') failed: got result '%+v', expected result '%v'",
expandTest.input, result, expandTest.resultExpected)
continue
}
t.Logf("Checked hostlist.Expand('%s'): result = '%+v', err = '%v'",
expandTest.input, result, err)
}
}