mirror of https://github.com/pulumi/pulumi.git
96 lines
3.3 KiB
Go
96 lines
3.3 KiB
Go
// Copyright 2016-2018, Pulumi Corporation.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package buildutil
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import (
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"bytes"
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"fmt"
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"io"
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"regexp"
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"github.com/pkg/errors"
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"github.com/pulumi/pulumi/pkg/util/contract"
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)
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var (
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releaseVersionRegex = regexp.MustCompile(
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`^v(?P<version>\d+\.\d+\.\d+)(-(?P<time>\d+)-(?P<gitInfo>g[a-z0-9]+))?(?P<dirty>-dirty)?$`)
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rcVersionRegex = regexp.MustCompile(
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`^v(?P<version>\d+\.\d+\.\d+)-rc(?P<rcN>\d+)(-(?P<time>\d+)-(?P<gitInfo>g[a-z0-9]+))?(?P<dirty>-dirty)?$`)
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devVersionRegex = regexp.MustCompile(
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`^v(?P<version>\d+\.\d+\.\d+)-dev-(?P<time>\d+)-(?P<gitInfo>g[a-z0-9]+)(?P<dirty>-dirty)?$`)
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)
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// PyPiVersionFromNpmVersion returns a PEP-440 compliant version for a given semver version. This method does not
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// support all possible semver strings, but instead just supports versions that we generate for our node packages.
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func PyPiVersionFromNpmVersion(s string) (string, error) {
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var b bytes.Buffer
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if releaseVersionRegex.MatchString(s) {
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capMap := captureToMap(releaseVersionRegex, s)
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mustFprintf(&b, "%s", capMap["version"])
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writePostBuildAndDirtyInfoToReleaseVersion(&b, capMap)
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return b.String(), nil
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} else if rcVersionRegex.MatchString(s) {
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capMap := captureToMap(rcVersionRegex, s)
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mustFprintf(&b, "%src%s", capMap["version"], capMap["rcN"])
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writePostBuildAndDirtyInfoToReleaseVersion(&b, capMap)
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return b.String(), nil
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} else if devVersionRegex.MatchString(s) {
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capMap := captureToMap(devVersionRegex, s)
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mustFprintf(&b, "%s.dev%s+%s", capMap["version"], capMap["time"], capMap["gitInfo"])
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if capMap["dirty"] != "" {
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mustFprintf(&b, ".dirty")
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}
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return b.String(), nil
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}
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return "", errors.Errorf("can not parse version string '%s'", s)
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}
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func captureToMap(r *regexp.Regexp, s string) map[string]string {
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matches := r.FindStringSubmatch(s)
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capMap := make(map[string]string)
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for i, name := range r.SubexpNames() {
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if name != "" {
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capMap[name] = matches[i]
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}
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}
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return capMap
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}
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// While the version string for dev builds always contain timestamp and commit information, release and release
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// release candidate builds do not. In the case where we do have this information, it is for a build newer than
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// the actual release build, and we'll use the PEP-440 .post notation to show this. We also handle adding the dirty
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// tag in the local version if we need it.
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func writePostBuildAndDirtyInfoToReleaseVersion(w io.Writer, capMap map[string]string) {
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if capMap["time"] != "" {
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mustFprintf(w, ".post%s", capMap["time"])
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mustFprintf(w, "+%s", capMap["gitInfo"])
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if capMap["dirty"] != "" {
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mustFprintf(w, ".dirty")
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}
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} else if capMap["dirty"] != "" {
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mustFprintf(w, "+dirty")
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}
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}
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func mustFprintf(w io.Writer, format string, a ...interface{}) {
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_, err := fmt.Fprintf(w, format, a...)
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contract.AssertNoError(err)
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}
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