semver.sh(файл создан)
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| 1 | + | #!/bin/bash | |
| 2 | + | ||
| 3 | + | # set -x | |
| 4 | + | ||
| 5 | + | # Stupid Simple Semver range validator | |
| 6 | + | # (no build metadata and no prereleases, and no multiple ranges (||)) | |
| 7 | + | ||
| 8 | + | # Prints a list of versions that match a semver range | |
| 9 | + | # ./semver.sh "range" version version version... | |
| 10 | + | ||
| 11 | + | # ./semver.sh ">=0.10.32 <7" 0.10.32 6.7.0 6.9.2 6.9.4 6.10.0 7.3.0 7.4.0 | xargs | |
| 12 | + | # 0.10.32 6.7.0 6.9.2 6.9.4 6.10.0 | |
| 13 | + | ||
| 14 | + | # ./semver.sh "^6.9.4" 0.10.32 6.7.0 6.9.2 6.9.4 6.10.0 7.3.0 7.4.0 | xargs | |
| 15 | + | # 6.9.4 6.10.0 | |
| 16 | + | ||
| 17 | + | # ./semver.sh "~6.9.4" 0.10.32 6.7.0 6.9.2 6.9.4 6.10.0 7.3.0 7.4.0 | xargs | |
| 18 | + | # 6.9.4 | |
| 19 | + | ||
| 20 | + | # TODO: error handling, validation | |
| 21 | + | ||
| 22 | + | # Basic concept: | |
| 23 | + | # 1.x.x = ^1.0.0 = (>=1.0.0 <2.0.0) | |
| 24 | + | # 1.1.x = ~1.1.0 = (>=1.1.0 <1.2.0) | |
| 25 | + | # ^1.x.x = ^1.0.0 | |
| 26 | + | # ~1.x.x = ~1.0.0 | |
| 27 | + | ||
| 28 | + | SEMVER_RANGE="$1"; shift | |
| 29 | + | SEMVER_AVAILABLE_VERSIONS="$@" | |
| 30 | + | ||
| 31 | + | SEMVER_RE_COMPARATOR='[<>=\^~]*' | |
| 32 | + | SEMVER_RE_VERSION='[0-9x\.]+' | |
| 33 | + | ||
| 34 | + | # Takes a range with multiple comparisons, and splits it into lines | |
| 35 | + | # >=1.2.3 < 3 | |
| 36 | + | # >=1.2.3 | |
| 37 | + | # < 3 | |
| 38 | + | semver_split_range () { | |
| 39 | + | egrep -o "($SEMVER_RE_COMPARATOR\s*$SEMVER_RE_VERSION)" | |
| 40 | + | } | |
| 41 | + | ||
| 42 | + | # Hacky way to make versions comparable | |
| 43 | + | # Won't work if version numbers are over 100k' | |
| 44 | + | # 1.2.3 => 000001000002000003 | |
| 45 | + | semver_to_number () { | |
| 46 | + | tr "." " " | xargs printf "%06g" | |
| 47 | + | } | |
| 48 | + | ||
| 49 | + | # Convert a range part into a set of comparison lines processable by bc | |
| 50 | + | # ^1.2.3 => >=1.2.3 <2.0.0 | |
| 51 | + | # >= 000001000002000003 | |
| 52 | + | # < 000002000000000000 | |
| 53 | + | semver_create_comparator () { | |
| 54 | + | local COMPARATOR="$(egrep -o "^$SEMVER_RE_COMPARATOR" <<< "$1")" | |
| 55 | + | local VERSION="$(egrep -o "$SEMVER_RE_VERSION$" <<< "$1")" | |
| 56 | + | local VP | |
| 57 | + | ||
| 58 | + | local ZERO_OR_X | |
| 59 | + | if [[ -n "$COMPARATOR" ]]; then | |
| 60 | + | ZERO_OR_X="0" | |
| 61 | + | else | |
| 62 | + | ZERO_OR_X="x" | |
| 63 | + | fi | |
| 64 | + | ||
| 65 | + | # Append either 0's or x's to the version, depending on comparator presence | |
| 66 | + | # 4 => 4.x.x | |
| 67 | + | # ^4 => 4.0.0 | |
| 68 | + | while [[ "$(egrep -o "\." <<< "$VERSION" | wc -l)" -lt "2" ]]; do | |
| 69 | + | VERSION="$VERSION.$ZERO_OR_X" | |
| 70 | + | done | |
| 71 | + | ||
| 72 | + | # If comparator is not defined (1.x.x, 1.x, 1, 1.0.x, 1.0.0 etc), | |
| 73 | + | # assign one based on the number of x's | |
| 74 | + | # 1.x.x => ^ 1.x.x | |
| 75 | + | # 1.0.x => ~ 1.0.x | |
| 76 | + | # 1.0.0 => == 1.0.0 | |
| 77 | + | if [[ -z "$COMPARATOR" ]]; then | |
| 78 | + | if [[ "$VERSION" =~ \.x\.x ]]; then | |
| 79 | + | COMPARATOR="^" | |
| 80 | + | elif [[ "$VERSION" =~ \.x ]]; then | |
| 81 | + | COMPARATOR="~" | |
| 82 | + | else | |
| 83 | + | COMPARATOR="==" | |
| 84 | + | fi | |
| 85 | + | fi | |
| 86 | + | ||
| 87 | + | # Finally, replace all the x's with 0s' | |
| 88 | + | # ^ 1.x.x => ^ 1.0.0 | |
| 89 | + | VERSION=$(sed -E 's|\.x|\.0|g' <<< "$VERSION") | |
| 90 | + | ||
| 91 | + | # Convert the ~,^ into proper >=, < comparator ranges | |
| 92 | + | # ^1.0.0 = (>=1.0.0 <2.0.0) | |
| 93 | + | # ~1.0.0 = (>=1.0.0 <1.1.0) | |
| 94 | + | if [[ "$COMPARATOR" =~ \^|~ ]]; then | |
| 95 | + | IFS="." read -ra VP <<< "$VERSION" | |
| 96 | + | if [[ "$COMPARATOR" == "~" ]]; then | |
| 97 | + | # Up the minor; 0 the patch | |
| 98 | + | VP[1]=$(( ${VP[1]} + 1 )) | |
| 99 | + | VP[2]=0 | |
| 100 | + | else | |
| 101 | + | # Up the major; 0 the minor and patch | |
| 102 | + | VP[0]=$(( ${VP[0]} + 1 )) | |
| 103 | + | VP[1]=0 | |
| 104 | + | VP[2]=0 | |
| 105 | + | fi | |
| 106 | + | COMPARATOR=">=" | |
| 107 | + | echo "< $(semver_to_number <<< "${VP[0]}.${VP[1]}.${VP[2]}")" | |
| 108 | + | fi | |
| 109 | + | ||
| 110 | + | echo "$COMPARATOR $(semver_to_number <<< "$VERSION")" | |
| 111 | + | } | |
| 112 | + | ||
| 113 | + | # Create all of the comparator lines processable by bc for the entire semver range | |
| 114 | + | # TODO: make it break for invalid ranges | |
| 115 | + | semver_create_comparators () { | |
| 116 | + | local R | |
| 117 | + | ||
| 118 | + | while read R; do | |
| 119 | + | semver_create_comparator "$R" | |
| 120 | + | done < <(semver_split_range <<< "$SEMVER_RANGE") | |
| 121 | + | } | |
| 122 | + | ||
| 123 | + | # Run a semver against all comparisons | |
| 124 | + | # If all conditions pass, return success | |
| 125 | + | semver_compare () { | |
| 126 | + | local C | |
| 127 | + | ||
| 128 | + | while read C; do | |
| 129 | + | [[ "$MATCH" == "false" ]] && break | |
| 130 | + | if [[ "$(bc <<< "$1 $C")" == "0" ]]; then | |
| 131 | + | return 1 | |
| 132 | + | fi | |
| 133 | + | done < <(echo -e "$V_COMPARATORS") | |
| 134 | + | } | |
| 135 | + | ||
| 136 | + | # Precompute the range into bc-processable comparator strings | |
| 137 | + | V_COMPARATORS="$(semver_create_comparators)" | |
| 138 | + | ||
| 139 | + | # Compare each provided version against the provided range, and print | |
| 140 | + | # the ones that succeed | |
| 141 | + | for A in $SEMVER_AVAILABLE_VERSIONS; do | |
| 142 | + | semver_compare "$(semver_to_number <<< "$A")" && echo $A | |
| 143 | + | done | |
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