├── .gitignore ├── .travis.yml ├── LICENSE ├── README.md ├── cc2ce ├── in.go ├── out.go └── utils.go ├── cc2ce4lhcb ├── lhcb.go └── out.go ├── cli └── main.go ├── doc └── compiler_explorer_for_lhcb.md ├── lb-CE-collect-nightlies └── main.go └── lb-CE-single-nightly-project └── main.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 | # Profiling outputs 15 | *.prof 16 | 17 | # output files 18 | c++.local.properties 19 | -------------------------------------------------------------------------------- /.travis.yml: -------------------------------------------------------------------------------- 1 | # mostly taken from github.com/robustirc/bridge 2 | sudo: false 3 | 4 | language: go 5 | 6 | script: 7 | # Check whether files are syntactically correct. 8 | - "gofmt -l $(find . -name '*.go' | tr '\\n' ' ') >/dev/null" 9 | # Check whether files were not gofmt'ed. 10 | - "gosrc=$(find . -name '*.go' | tr '\\n' ' '); [ $(gofmt -l $gosrc 2>&- | wc -l) -eq 0 ] || (echo 'gofmt was not run on these files:'; gofmt -l $gosrc 2>&-; false)" 11 | # Run go vet for further checking. 12 | - go vet github.com/pseyfert/compilecommands_to_compilerexplorer/cc2ce 13 | - go vet github.com/pseyfert/compilecommands_to_compilerexplorer/cc2ce4lhcb 14 | - go vet github.com/pseyfert/compilecommands_to_compilerexplorer/cli 15 | - go vet github.com/pseyfert/compilecommands_to_compilerexplorer/lb-CE-collect-nightlies 16 | - go vet github.com/pseyfert/compilecommands_to_compilerexplorer/lb-CE-single-nightly-project 17 | # Run tests (output validation) 18 | #- go test github.com/pseyfert/..... 19 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # compilecommands 2 compilerexplorer 2 | 3 | [![Licence: GPL v3](https://img.shields.io/github/license/pseyfert/compilecommands_to_compilerexplorer.svg)](LICENSE) 4 | [![travis Status](https://travis-ci.org/pseyfert/compilecommands_to_compilerexplorer.svg?branch=master)](https://travis-ci.org/pseyfert/compilecommands_to_compilerexplorer) 5 | 6 | Helpers to create a [compiler explorer](https://godbolt.org/) configuration 7 | from a `compile_commands.json` file. 8 | 9 | Originally created to have the LHCb Experiment's nightly software builds 10 | available in Compiler Explorer with transitive include dependencies. 11 | 12 | Sorting out LHCb specific parts into dedicated packages is work in progress to 13 | facilitate a more general usage. 14 | 15 | Feedback (suggestions, wishes, reviews, bug reports, patches, pull requests, 16 | improvements) is welcome, even if I don't find the time to follow them up. 17 | Please consider that general purpose refactoring is not on my employer's 18 | priorities. 19 | 20 | I (very quickly) wrote down a [blog 21 | post](https://pseyfert.web.cern.ch/pseyfert/blog/compiler-explorer-for-lhcb.html) 22 | about my Compiler Explorer setup, its raw version can be found in the `doc` 23 | directory. The blog post is under CC-BY-SA 4.0. 24 | -------------------------------------------------------------------------------- /cc2ce/in.go: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2018 CERN for the benefit of the LHCb collaboration 3 | * Author: Paul Seyfert 4 | * 5 | * This software is distributed under the terms of the GNU General Public 6 | * Licence version 3 (GPL Version 3), copied verbatim in the file "LICENSE". 7 | * 8 | * In applying this licence, CERN does not waive the privileges and immunities 9 | * granted to it by virtue of its status as an Intergovernmental Organization 10 | * or submit itself to any jurisdiction. 11 | */ 12 | 13 | // This file contains the parsing of a compile_commands.json database to 14 | // extract a union (over all translation units) of all include paths given to 15 | // the compiler. 16 | 17 | package cc2ce 18 | 19 | import ( 20 | "bytes" 21 | "encoding/json" 22 | "fmt" 23 | "io/ioutil" 24 | "os" 25 | "path/filepath" 26 | "strings" 27 | ) 28 | 29 | type JsonTranslationunit struct { 30 | Builddir string `json:"directory"` // working dir, necessary for relative paths 31 | Command string `json:"command"` // contains the compiler call 32 | File string `json:"file"` // input file 33 | 34 | Arguments []string `json:"arguments"` // alternative to 'command' (list of strings rather than string) FIXME: handle 35 | Output string `json:"output"` // optional, unused 36 | } 37 | 38 | // IncludesFromJsonByBytes parses json provided as []byte (and is called by 39 | // ParseJsonByFilename). It collects all include paths given in the form 40 | // `-Isomepath` and `-isystem somepath`. 41 | // 42 | // The return is a quasi-'set' of strings: a map string -> bool. All bools are 43 | // true. An include path is present in the compile_commands if and only if it 44 | // is present as key in the map. 45 | // 46 | // When the turnAbsolute option is true, relative paths get turned into 47 | // absolute paths by using the specified working directory from the json. 48 | // Otherwise, no path manipulation is done. 49 | func IncludesFromJsonByBytes(inFileContent []byte, turnAbsolute bool) (map[string]bool, error) { 50 | db, err := JsonTUsByBytes(inFileContent) 51 | 52 | if nil != err { 53 | return make(map[string]bool), err 54 | } 55 | 56 | return IncludesFromJsonByDB(db, turnAbsolute) 57 | } 58 | 59 | func IncludesFromJsonByDB(db []JsonTranslationunit, turnAbsolute bool) (map[string]bool, error) { 60 | stringset := make(map[string]bool) 61 | for _, tu := range db { 62 | words := strings.Fields(tu.Command) 63 | for j, w := range words { 64 | inc := "" 65 | if w[0:2] == "-I" { 66 | inc = w[2:len(w)] 67 | } 68 | if w == "-isystem" { 69 | inc = words[j+1] 70 | } 71 | if inc != "" { 72 | if !filepath.IsAbs(inc) && turnAbsolute { 73 | inc = filepath.Join(tu.Builddir, inc) 74 | } 75 | stringset[inc] = true 76 | } 77 | } 78 | } 79 | return stringset, nil 80 | } 81 | 82 | // Attempt to get compiler options from the compile_commands.json. On a pure 83 | // luck based approach, the compile command of the first translation unit is 84 | // used to extract -W, -m, -f, -p, -std, -O, and -D settings. These may well 85 | // differ from one translation unit to the other. 86 | // 87 | // The -D options are filtered based on what I found not useful in LHCb 88 | // projects. 89 | func OptionsFromJsonByBytes(inFileContent []byte, skippackagenameversion bool) (string, error) { 90 | db, err := JsonTUsByBytes(inFileContent) 91 | if nil != err { 92 | return "", err 93 | } 94 | optionsstring, err := OptionsFromJsonByDB(db, skippackagenameversion) 95 | return optionsstring, err 96 | } 97 | 98 | func OptionsFromJsonByDB(db []JsonTranslationunit, skippackagenameversion bool) (string, error) { 99 | var b bytes.Buffer 100 | for _, tu := range db { 101 | words := strings.Fields(tu.Command) 102 | for _, w := range words { 103 | if strings.HasPrefix(w, "-D") { 104 | if strings.HasSuffix(w, "EXPORTS") { 105 | continue 106 | } else if strings.HasPrefix(w, "-DPACKAGE_NAME") { 107 | if !skippackagenameversion { 108 | b.WriteString("-DPACKAGE_NAME=\"CompilerExplorer\"") 109 | } 110 | } else if strings.HasPrefix(w, "-DPACKAGE_VERSION") { 111 | if !skippackagenameversion { 112 | b.WriteString("-DPACKAGE_VERSION=\"v0r0\"") 113 | } 114 | } else if w == "-DGAUDI_LINKER_LIBRARY" { 115 | continue 116 | } else { 117 | // In the .json I often see -Dsomevar=\\\"someval\\\" 118 | // For the .properties this needs to be -Dsomevar="someval" with all backslashes gone 119 | // NB: in the past I used 7 backslashes instead of 3. At the time of writing this comment 120 | // I have to change 7 to 3 to fix production. I did not verify if this is a change 121 | // in go (encoding/json?). According to the previous comment, this is not a change 122 | // in cmake (observations match). 123 | b.WriteString(strings.Replace(w, "\\\"", "\"", 2)) 124 | } 125 | } else if strings.HasPrefix(w, "-p") { 126 | b.WriteString(w) 127 | } else if strings.HasPrefix(w, "-O") { 128 | b.WriteString(w) 129 | } else if strings.HasPrefix(w, "-m") { 130 | b.WriteString(w) 131 | } else if strings.HasPrefix(w, "-f") { 132 | b.WriteString(w) 133 | } else if strings.HasPrefix(w, "-W") { 134 | b.WriteString(w) 135 | } else if strings.HasPrefix(w, "-std") { 136 | b.WriteString(w) 137 | } else { 138 | continue 139 | } 140 | b.WriteString(" ") 141 | } 142 | return b.String(), nil 143 | } 144 | return "", fmt.Errorf("no translation units found") 145 | } 146 | 147 | // ParseJsonByFilename opens a compile_commands.json file and passes it to 148 | // IncludesFromJsonByBytes to get the union of all include paths. If the 149 | // argument ends on "compile_commands.json", it is assumed to be the path to 150 | // the compile_commands.json file. Otherwise, it is assumed to be the directory 151 | // containing the compile_commands.json file. 152 | // 153 | // The return is a quasi-'set' of strings: a map string -> bool. All bools are 154 | // true. An include path is present in the compile_commands if and only if it 155 | // is present as key in the map. 156 | // 157 | // When the turnAbsolute option is true, relative paths get turned into 158 | // absolute paths by using the specified working directory from the json. 159 | // Otherwise, no path manipulation is done. 160 | func ParseJsonByFilename(inFileName string, turnAbsolute bool) (map[string]bool, error) { 161 | stringset := make(map[string]bool) 162 | db, err := JsonTUsByFilename(inFileName) 163 | if nil != err { 164 | return stringset, err 165 | } 166 | return IncludesFromJsonByDB(db, turnAbsolute) 167 | } 168 | 169 | func BytesFromFilename(inFileName string) ([]byte, error) { 170 | if !strings.HasSuffix(inFileName, "compile_commands.json") { 171 | inFileName = filepath.Join(inFileName, "compile_commands.json") 172 | } 173 | jsonFile, err := os.Open(inFileName) 174 | if err != nil { 175 | retval := make([]byte, 0) 176 | return retval, err 177 | } 178 | defer jsonFile.Close() 179 | byteValue, err := ioutil.ReadAll(jsonFile) 180 | 181 | return byteValue, err 182 | } 183 | 184 | func JsonTUsByBytes(inFileContent []byte) ([]JsonTranslationunit, error) { 185 | var db []JsonTranslationunit 186 | json.Unmarshal(inFileContent, &db) 187 | 188 | return db, nil 189 | } 190 | 191 | func JsonTUsByFilename(inFileName string) ([]JsonTranslationunit, error) { 192 | inFileContent, err := BytesFromFilename(inFileName) 193 | if nil != err { 194 | return make([]JsonTranslationunit, 0), err 195 | } 196 | db, err := JsonTUsByBytes(inFileContent) 197 | return db, err 198 | } 199 | -------------------------------------------------------------------------------- /cc2ce/out.go: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2018 CERN for the benefit of the LHCb collaboration 3 | * Author: Paul Seyfert 4 | * 5 | * This software is distributed under the terms of the GNU General Public 6 | * Licence version 3 (GPL Version 3), copied verbatim in the file "LICENSE". 7 | * 8 | * In applying this licence, CERN does not waive the privileges and immunities 9 | * granted to it by virtue of its status as an Intergovernmental Organization 10 | * or submit itself to any jurisdiction. 11 | */ 12 | 13 | package cc2ce 14 | 15 | import ( 16 | "fmt" 17 | "log" 18 | "strings" 19 | 20 | write "github.com/google/renameio" 21 | ) 22 | 23 | type Library struct { 24 | LibraryName string 25 | LibraryVersion string 26 | LibraryUrl string 27 | Paths map[string]bool 28 | } 29 | 30 | func WriteSingleLibraryAndVersionToFile(lib Library, f *write.PendingFile) error { 31 | if _, err := fmt.Fprintf(f, "libs=%s\n", strings.ToLower(lib.LibraryName)); err != nil { 32 | log.Printf("writing to c++.local.properties failed: %v", err) 33 | return err 34 | } 35 | 36 | print_lib := func(key, val string) error { 37 | if _, err := fmt.Fprintf(f, "libs.%s.%s=%s\n", strings.ToLower(lib.LibraryName), key, val); err != nil { 38 | log.Printf("writing to c++.local.properties failed: %v", err) 39 | return err 40 | } 41 | return nil 42 | } 43 | 44 | err := print_lib("name", lib.LibraryName) 45 | if err != nil { 46 | return err 47 | } 48 | if lib.LibraryUrl != "" { 49 | err = print_lib("url", lib.LibraryUrl) 50 | if err != nil { 51 | return err 52 | } 53 | } 54 | err = print_lib("versions", lib.LibraryVersion) 55 | if err != nil { 56 | return err 57 | } 58 | 59 | print_lib_ver := func(key, val string) error { 60 | if _, err := fmt.Fprintf(f, "libs.%s.versions.%s.%s=%s\n", strings.ToLower(lib.LibraryName), lib.LibraryVersion, key, val); err != nil { 61 | log.Printf("writing to c++.local.properties failed: %v", err) 62 | return err 63 | } 64 | return nil 65 | } 66 | err = print_lib_ver("version", lib.LibraryVersion) 67 | if err != nil { 68 | return err 69 | } 70 | err = print_lib_ver("path", ColonSeparateMap(lib.Paths)) 71 | if err != nil { 72 | return err 73 | } 74 | return nil 75 | } 76 | 77 | func WriteSingleLibraryAndVersion(lib Library) error { 78 | f, err := write.TempFile("", "./c++.local.properties") 79 | if err != nil { 80 | log.Printf("Couldn't create tempfile for output writing: %v", err) 81 | return err 82 | } 83 | defer f.Cleanup() 84 | err = WriteSingleLibraryAndVersionToFile(lib, f) 85 | if err != nil { 86 | return err 87 | } 88 | if err := f.CloseAtomicallyReplace(); err != nil { 89 | log.Printf("writing c++.local.properties failed: %v", err) 90 | return err 91 | } 92 | return nil 93 | } 94 | -------------------------------------------------------------------------------- /cc2ce/utils.go: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2018 CERN for the benefit of the LHCb collaboration 3 | * Author: Paul Seyfert 4 | * 5 | * This software is distributed under the terms of the GNU General Public 6 | * Licence version 3 (GPL Version 3), copied verbatim in the file "LICENSE". 7 | * 8 | * In applying this licence, CERN does not waive the privileges and immunities 9 | * granted to it by virtue of its status as an Intergovernmental Organization 10 | * or submit itself to any jurisdiction. 11 | */ 12 | 13 | package cc2ce 14 | 15 | import ( 16 | "bytes" 17 | "strings" 18 | ) 19 | 20 | // Convert a quasi-set of strings (a map[string]bool) into a colon separated string. 21 | // Only the map keys are considered, values are ignored. 22 | // This is equivalent to strings.Join(stringset, ":"). 23 | func ColonSeparateArray(stringset []string) string { 24 | return strings.Join(stringset, ":") 25 | } 26 | 27 | // Convert a quasi-set of strings (a map[string]bool) into a colon separated string. 28 | // Only the map keys are considered, values are ignored. 29 | func ColonSeparateMap(stringset map[string]bool) string { 30 | var b bytes.Buffer 31 | addseparator := false 32 | for k, _ := range stringset { 33 | if addseparator { 34 | b.WriteString(":") 35 | } else { 36 | addseparator = true 37 | } 38 | b.WriteString(k) 39 | } 40 | return b.String() 41 | } 42 | -------------------------------------------------------------------------------- /cc2ce4lhcb/lhcb.go: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2018 CERN for the benefit of the LHCb collaboration 3 | * Author: Paul Seyfert 4 | * 5 | * This software is distributed under the terms of the GNU General Public 6 | * Licence version 3 (GPL Version 3), copied verbatim in the file "LICENSE". 7 | * 8 | * In applying this licence, CERN does not waive the privileges and immunities 9 | * granted to it by virtue of its status as an Intergovernmental Organization 10 | * or submit itself to any jurisdiction. 11 | */ 12 | 13 | // This file contains the special treatment of LHCb specific include paths and 14 | // how I want to treat them in our compiler explorer instance. 15 | // Non-LHCb users should not need anything from this file. 16 | 17 | package cc2ce4lhcb 18 | 19 | import ( 20 | "fmt" 21 | "path/filepath" 22 | "strings" 23 | 24 | "github.com/pseyfert/compilecommands_to_compilerexplorer/cc2ce" 25 | ) 26 | 27 | // Filter_LHCb_public_includes removes or manipulates include paths from a 28 | // map[string]bool that need special treatment in the setup of the LHCb build 29 | // servers: 30 | // * Include paths from /cvmfs get accepted 31 | // * Includes that look like they are (in the) the source directory of the 32 | // current project get ignored 33 | // * The header paths installed by the current project get added 34 | // * Include paths from the current workspace that look like install 35 | // directories of dependencies (built by the same slot) get manipulated to 36 | // their expected cvmfs deployment destination 37 | func Filter_LHCb_public_includes(unfiltered map[string]bool, p Project) (map[string]bool, error) { 38 | filtered, err := Filter_LHCb_includes(unfiltered, p, false) 39 | return filtered, err 40 | } 41 | 42 | func Filter_LHCb_includes(unfiltered map[string]bool, p Project, keep_local_includes bool) (map[string]bool, error) { 43 | filtered := make(map[string]bool) 44 | // add the deployed install area of the current project 45 | filtered[filepath.Join(Installarea(p), "/include")] = true 46 | for inc, boolean := range unfiltered { 47 | if !boolean { 48 | // this is unexpected input 49 | return make(map[string]bool), fmt.Errorf("Filter_LHCb_all_includes unexpected input: false flagged include path") 50 | } 51 | if strings.HasPrefix(inc, "/cvmfs") { 52 | // accept paths from cvmfs 53 | filtered[inc] = true 54 | } else if strings.Contains(inc, "InstallArea") { 55 | // this looks like the installation area of a dependency project 56 | // replace /workspace/build/... by something like 57 | // /cvmfs/lhcbdev.cern.ch/nightlies/lhcb-head/Tue/... 58 | // where ... looks like GAUDI/GAUDI_master/InstallArea/x86_64+avx2+fma-centos7-gcc7-opt/include 59 | filtered[strings.Replace(inc, "/workspace/build/", p.Buildarea()+"/", 1)] = true 60 | } else if strings.HasPrefix(inc, filepath.Join("/workspace/build", p.ProjectareaInBuildarea_new())) { 61 | // should be the source of the current project (in a new - i.e. nightlies - build area) 62 | if keep_local_includes { 63 | filtered[strings.Replace(inc, "/workspace/build/", p.Buildarea()+"/", 1)] = true 64 | } 65 | } else if strings.HasPrefix(inc, filepath.Join("/workspace/build", p.ProjectareaInBuildarea_old())) { 66 | // should be the source of the current project (in an old - i.e. old released - build area) 67 | if keep_local_includes { 68 | filtered[strings.Replace(inc, "/workspace/build/", p.Buildarea()+"/", 1)] = true 69 | } 70 | } else if inc != "" { 71 | // includes which are none of the above are unexpected 72 | return make(map[string]bool), fmt.Errorf("Unexpected include path for LHCb nightly treatment: %s", inc) 73 | } 74 | } 75 | return filtered, nil 76 | } 77 | 78 | func (p *Project) CE_config_name() string { 79 | return strings.ToLower(p.Project) 80 | } 81 | 82 | func (p *Project) Buildarea() string { 83 | if Released { 84 | return "/cvmfs/lhcb.cern.ch/lib/lhcb" 85 | } 86 | return filepath.Join( 87 | Nightlyroot, 88 | p.Slot, 89 | p.Day) 90 | } 91 | 92 | func (p *Project) ProjectareaInBuildarea_new() string { 93 | return p.Project 94 | } 95 | 96 | func (p *Project) ProjectareaInBuildarea_old() string { 97 | return filepath.Join( 98 | strings.ToUpper(p.Project), 99 | strings.ToUpper(p.Project)+"_"+p.Version) 100 | } 101 | 102 | func Installarea(p Project) string { 103 | if Released { 104 | return filepath.Join( 105 | "/cvmfs/lhcb.cern.ch/lib/lhcb", 106 | strings.ToUpper(p.Project), 107 | strings.ToUpper(p.Project)+"_"+p.Version, 108 | "InstallArea", 109 | Cmtconfig) 110 | } 111 | return filepath.Join( 112 | Nightlyroot, 113 | p.Slot, 114 | p.Day, 115 | p.Project, 116 | "InstallArea", 117 | Cmtconfig) 118 | } 119 | 120 | func (p *Project) GenerateIncludes() error { 121 | incs, err := Parse_and_generate(*p, Nightlyroot, Cmtconfig) 122 | if err != nil { 123 | return err 124 | } 125 | p.IncludeMap = incs 126 | return nil 127 | } 128 | 129 | func Parse_and_generate(p Project, nightlyroot, cmtconfig string) (map[string]bool, error) { 130 | stringset := make(map[string]bool) 131 | 132 | unfiltered, err := cc2ce.ParseJsonByFilename(Installarea(p), false) 133 | if err != nil { 134 | return stringset, err 135 | } 136 | 137 | filtered, err := Filter_LHCb_public_includes(unfiltered, p) 138 | if err != nil { 139 | return stringset, err 140 | } 141 | 142 | return filtered, nil 143 | } 144 | 145 | // Wrapper of what should become one version of a library in Compiler-Explorer. 146 | // Given the installation of nightlies on cvmfs, this is defined by the 147 | // architecture, slot, day (or build), project name and version. 148 | // 149 | // * Version is usually HEAD. 150 | // * Project must be all upper case 151 | // * Day is the number of the build as string, or the shorthand symlink name (e.g. "Today") 152 | // * Slot is the slot of the nightly build system (e.g. lhcb-head or lhcb-gaudi-head) 153 | // * IncludeMap is the quasi-set of all include paths (the installed ones and the dependencies) 154 | type Project struct { 155 | Slot string 156 | Day string 157 | Project string 158 | Version string 159 | IncludeMap map[string]bool 160 | } 161 | 162 | func (p *Project) ConfVersion() string { 163 | if Released { 164 | return p.Version 165 | } else { 166 | return p.Slot + "/" + p.Day 167 | } 168 | } 169 | 170 | // The current platform, e.g. "x86_64-centos7-gcc7-opt" 171 | var Cmtconfig string 172 | 173 | // The installation of nightlies, i.e. "/cvmfs/lhcbdev.cern.ch/nightlies" 174 | var Nightlyroot string 175 | 176 | var Released bool 177 | -------------------------------------------------------------------------------- /cc2ce4lhcb/out.go: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2018 CERN for the benefit of the LHCb collaboration 3 | * Author: Paul Seyfert 4 | * 5 | * This software is distributed under the terms of the GNU General Public 6 | * Licence version 3 (GPL Version 3), copied verbatim in the file "LICENSE". 7 | * 8 | * In applying this licence, CERN does not waive the privileges and immunities 9 | * granted to it by virtue of its status as an Intergovernmental Organization 10 | * or submit itself to any jurisdiction. 11 | */ 12 | 13 | package cc2ce4lhcb 14 | 15 | import ( 16 | "fmt" 17 | "log" 18 | "os" 19 | "strings" 20 | 21 | write "github.com/google/renameio" 22 | "github.com/pseyfert/compilecommands_to_compilerexplorer/cc2ce" 23 | ) 24 | 25 | func Create(ps []Project, outname string) { 26 | if len(ps) == 0 { 27 | log.Print("no project?") 28 | os.Exit(8) 29 | } 30 | unique_project_names := make(map[string]bool) 31 | for _, p := range ps { 32 | unique_project_names[p.CE_config_name()] = true 33 | } 34 | project_names := cc2ce.ColonSeparateMap(unique_project_names) 35 | 36 | f, err := write.TempFile("", outname) 37 | if err != nil { 38 | log.Printf("Couldn't create tempfile for output writing: %v", err) 39 | os.Exit(5) 40 | } 41 | defer f.Cleanup() 42 | 43 | if _, err := fmt.Fprintf(f, "libs=%s\n", project_names); err != nil { 44 | log.Printf("assembling projects %v to %s: %v", project_names, outname, err) 45 | os.Exit(5) 46 | } 47 | 48 | // EXAMPLE: 49 | // ``` 50 | // libs=moore:brunel 51 | // libs.moore.name=MOORE 52 | // libs.moore.versions=v30r0 53 | // libs.moore.url=https://google.com/sorry 54 | // libs.moore.versions.v30r0.version=v30r0 55 | // libs.moore.versions.v30r0.path=/cvmfs/lhcb.cern.ch/lib/lhcb/MOORE/MOORE_v30r0/InstallArea/x86_64-centos7-gcc7-opt/include:/cvmfs/lhcb.cern.ch/lib/lcg/releases/LCG_93/Python/2.7.13/x86_64-centos7-gcc7-opt/include/python2.7:/cvmfs/lhcb.cern.ch/lib/lcg/releases/LCG_93/cppgsl/b07383ea/x86_64-centos7-gcc7-opt:/cvmfs/lhcb.cern.ch/lib/lcg/releases/LCG_93/vdt/0.3.9/x86_64-centos7-gcc7-opt/include:/cvmfs/lhcb.cern.ch/lib/lcg/releases/LCG_93/clhep/2.4.0.1/x86_64-centos7-gcc7-opt/include:/cvmfs/lhcb.cern.ch/lib/lcg/releases/LCG_93/GSL/2.1/x86_64-centos7-gcc7-opt/include:/cvmfs/lhcb.cern.ch/lib/lcg/releases/LCG_93/rangev3/0.3.0/x86_64-centos7-gcc7-opt/include:/cvmfs/lhcb.cern.ch/lib/lcg/releases/LCG_93/AIDA/3.2.1/x86_64-centos7-gcc7-opt/src/cpp:/cvmfs/lhcb.cern.ch/lib/lcg/releases/LCG_93/tbb/2018_U1/x86_64-centos7-gcc7-opt/include:/cvmfs/lhcb.cern.ch/lib/lcg/releases/LCG_93/ROOT/6.12.06/x86_64-centos7-gcc7-opt/include:/cvmfs/lhcb.cern.ch/lib/lcg/releases/LCG_93/Boost/1.66.0/x86_64-centos7-gcc7-opt/include:/cvmfs/lhcb.cern.ch/lib/lhcb/HLT/HLT_v30r0/InstallArea/x86_64-centos7-gcc7-opt/include:/cvmfs/lhcb.cern.ch/lib/lhcb/PHYS/PHYS_v30r0/InstallArea/x86_64-centos7-gcc7-opt/include:/cvmfs/lhcb.cern.ch/lib/lhcb/REC/REC_v30r0/InstallArea/x86_64-centos7-gcc7-opt/include:/cvmfs/lhcb.cern.ch/lib/lhcb/LBCOM/LBCOM_v30r0/InstallArea/x86_64-centos7-gcc7-opt/include:/cvmfs/lhcb.cern.ch/lib/lhcb/LHCB/LHCB_v50r0/InstallArea/x86_64-centos7-gcc7-opt/include:/cvmfs/lhcb.cern.ch/lib/lhcb/GAUDI/GAUDI_v30r2/InstallArea/x86_64-centos7-gcc7-opt/include 56 | // ``` 57 | 58 | setup_project_names := make(map[string]bool) 59 | 60 | for i, p := range ps { 61 | if _, found := setup_project_names[p.CE_config_name()]; !found { 62 | var versions []string 63 | for j := i; j < len(ps); j++ { 64 | if ps[j].CE_config_name() == p.CE_config_name() { 65 | versions = append(versions, ps[j].ConfVersion()) 66 | } 67 | } 68 | if _, err := fmt.Fprintf(f, "libs.%s.name=%s\n", p.CE_config_name(), p.CE_config_name()); err != nil { 69 | log.Printf("writing project name for %s to %s: %v", p.Project, outname, err) 70 | os.Exit(5) 71 | } 72 | if _, err := fmt.Fprintf(f, "libs.%s.url=https://lhcb-nightlies.cern.ch/nightly/summary/\n", p.CE_config_name()); err != nil { 73 | log.Printf("writing project url for %s to %s: %v", p.Project, outname, err) 74 | os.Exit(5) 75 | } 76 | 77 | output_versions := strings.Join(versions, ":") 78 | if _, err := fmt.Fprintf(f, "libs.%s.versions=%s\n", p.CE_config_name(), output_versions); err != nil { 79 | log.Printf("writing project %s versions %v to %s: %v", p.Project, output_versions, outname, err) 80 | os.Exit(5) 81 | } 82 | 83 | } 84 | setup_project_names[p.CE_config_name()] = true 85 | } 86 | 87 | for _, p := range ps { 88 | pr := func(s1, s2 string) { 89 | if _, err := fmt.Fprintf(f, "libs.%s.versions.%s.%s=%s\n", p.CE_config_name(), p.ConfVersion(), s1, s2); err != nil { 90 | log.Printf("adding configuration %s=%s to %s/%s: %v", s1, s2, p.Project, p.ConfVersion(), err) 91 | os.Exit(5) 92 | } 93 | } 94 | pr("version", p.ConfVersion()) 95 | pr("path", cc2ce.ColonSeparateMap(p.IncludeMap)) 96 | } 97 | if err := f.CloseAtomicallyReplace(); err != nil { 98 | log.Printf("writing %s: %v", outname, err) 99 | os.Exit(6) 100 | } 101 | } 102 | -------------------------------------------------------------------------------- /cli/main.go: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2018 CERN for the benefit of the LHCb collaboration 3 | * Author: Paul Seyfert 4 | * 5 | * This software is distributed under the terms of the GNU General Public 6 | * Licence version 3 (GPL Version 3), copied verbatim in the file "LICENSE". 7 | * 8 | * In applying this licence, CERN does not waive the privileges and immunities 9 | * granted to it by virtue of its status as an Intergovernmental Organization 10 | * or submit itself to any jurisdiction. 11 | */ 12 | 13 | package main 14 | 15 | import ( 16 | "bytes" 17 | "flag" 18 | "fmt" 19 | "log" 20 | "os" 21 | "strings" 22 | 23 | write "github.com/google/renameio" 24 | "github.com/pseyfert/compilecommands_to_compilerexplorer/cc2ce" 25 | ) 26 | 27 | type CompilerConfig struct { 28 | Exe string 29 | Name string 30 | ConfName string 31 | Options string 32 | } 33 | 34 | func CompilerFromJsonByDB(db []cc2ce.JsonTranslationunit) (string, error) { 35 | var b bytes.Buffer 36 | for _, tu := range db { 37 | words := strings.Fields(tu.Command) 38 | for i, w := range words { 39 | if strings.HasPrefix(w, "-") || strings.HasSuffix(w, ".cpp") { 40 | break 41 | } 42 | if i != 0 { 43 | b.WriteString(" ") 44 | } 45 | b.WriteString(w) 46 | } 47 | return b.String(), nil 48 | } 49 | return "", fmt.Errorf("no translation units found") 50 | } 51 | 52 | func main() { 53 | var lib cc2ce.Library 54 | var dbpath string 55 | flag.StringVar(&dbpath, "p", ".", "Compilation database path") 56 | flag.StringVar(&lib.LibraryName, "l", "local", "Name of library to display in CE") 57 | flag.StringVar(&lib.LibraryUrl, "u", "", "URL to link from CE") 58 | flag.StringVar(&lib.LibraryVersion, "version", "master", "version information to display in CE") 59 | ofname := flag.String("o", "./c++.local.properties", "output file with CE configuration") 60 | flag.Parse() 61 | var err error 62 | turnAbsolute := true 63 | db, err := cc2ce.JsonTUsByFilename(dbpath) 64 | if err != nil { 65 | log.Printf("Could not read compile_commands.json: %v", err) 66 | os.Exit(1) 67 | } 68 | lib.Paths, err = cc2ce.IncludesFromJsonByDB(db, turnAbsolute) 69 | if err != nil { 70 | log.Printf("reading of include paths failed: %v", err) 71 | os.Exit(1) 72 | } 73 | 74 | var compiler CompilerConfig 75 | compiler.Exe, err = CompilerFromJsonByDB(db) 76 | compiler.Options, err = cc2ce.OptionsFromJsonByDB(db, false) 77 | compiler.Name = "hardcoded" 78 | compiler.ConfName = "hardcoded" 79 | if err != nil { 80 | log.Printf("Error obtaining compiler options: %v", err) 81 | os.Exit(1) 82 | } 83 | 84 | f, err := write.TempFile("", *ofname) 85 | if err != nil { 86 | log.Printf("Couldn't create tempfile for output writing: %v", err) 87 | os.Exit(5) 88 | } 89 | err = cc2ce.WriteSingleLibraryAndVersionToFile(lib, f) 90 | if err != nil { 91 | log.Printf("Error writing library config: %v", err) 92 | f.Cleanup() 93 | os.Exit(5) 94 | } 95 | err = WriteConfig([]CompilerConfig{compiler}, f) 96 | if err != nil { 97 | log.Printf("Error writing compiler config: %v", err) 98 | f.Cleanup() 99 | os.Exit(5) 100 | } 101 | if err := f.CloseAtomicallyReplace(); err != nil { 102 | log.Printf("writing %s failed: %v", *ofname, err) 103 | f.Cleanup() 104 | os.Exit(5) 105 | } 106 | f.Cleanup() 107 | os.Exit(0) 108 | } 109 | 110 | func WriteConfig(confs []CompilerConfig, f *write.PendingFile) error { 111 | fmt.Fprintf(f, "compilers=&autogen\n") 112 | { 113 | var b bytes.Buffer 114 | addseparator := false 115 | for _, c := range confs { 116 | if addseparator { 117 | b.WriteString(":") 118 | } else { 119 | addseparator = true 120 | } 121 | b.WriteString(c.ConfName) 122 | } 123 | if _, err := fmt.Fprintf(f, "group.autogen.compilers=%s\n", b.String()); err != nil { 124 | log.Printf("Error writing to config: %v", err) 125 | return err 126 | } 127 | } 128 | if _, err := fmt.Fprint(f, "group.autogen.groupName=auto-generated compiler settings\n"); err != nil { 129 | log.Printf("Error writing to config: %v", err) 130 | return err 131 | } 132 | compiler_writer := func(c CompilerConfig) error { 133 | if _, err := fmt.Fprintf(f, "compiler.%s.name=%s\n", c.ConfName, c.Name); err != nil { 134 | log.Printf("Error writing to config: %v", err) 135 | return err 136 | } 137 | if _, err := fmt.Fprintf(f, "compiler.%s.exe=%s\n", c.ConfName, c.Exe); err != nil { 138 | log.Printf("Error writing to config: %v", err) 139 | return err 140 | } 141 | if _, err := fmt.Fprintf(f, "compiler.%s.options=%s\n", c.ConfName, c.Options); err != nil { 142 | log.Printf("Error writing to config: %v", err) 143 | return err 144 | } 145 | return nil 146 | } 147 | for _, c := range confs { 148 | if err := compiler_writer(c); err != nil { 149 | return err 150 | } 151 | } 152 | return nil 153 | } 154 | -------------------------------------------------------------------------------- /doc/compiler_explorer_for_lhcb.md: -------------------------------------------------------------------------------- 1 | Title: Compiler Explorer for LHCb 2 | Date: 2018-10-31 22:48 3 | Category: Computer 4 | Tags: web, computing, physics-software 5 | Authors: Paul Seyfert 6 | Summary: I started running Compiler-Explorer (aka godbolt) for the LHCb software stack. Considering a typical compiler call is 2k characters, that needed some setup. The most relevant part was setting up all the `-I` such that one can `#include "Event/Track.h"` our standard data structure headers. 7 | 8 | ## Compiler Explorer 9 | 10 | You might be familiar with [Compiler Explorer](https://godbolt.org). A 11 | website where you can enter some C++ (or other languages) code and with 12 | then compiles your code and shows the assembly, or preprocessor output, 13 | or intermediate compiler results. This is to enable programmers to 14 | understand better what the compiler is doing, the impact of compiler 15 | options, compare different implementations (if they result in different 16 | code) … 17 | 18 | I started a VM on our openstack instance and allowed a few colleagues to use 19 | the site. 20 | 21 | ## The first problem I'm trying to solve (I got greedy, less relevant ones further down) 22 | 23 | One thing I didn't like is that on the website I could use none of the headers 24 | of our LHCb software stack because the website offers many popular C++ 25 | libraries as selectable include paths, but not our stack. 26 | 27 | ### What Compiler Explorer provides 28 | 29 | The compiler explorer code is hosted on github and pretty easy to get running 30 | (a decent node.js version provided). 31 | 32 | Adding libraries to a local instance is rather straight forward. The 33 | documentation says one should look at `etc/config/c++.amazon.properties` how it 34 | works and then add the corresponding lines to a 35 | `etc/config/c++..properties` file. `` in my case is 36 | `defaults` or `local`. The difference being, the latter is gitignore'd. 37 | 38 | They look like this 39 | ``` 40 | libs=moore:local 41 | libs.local.name=LOCAL 42 | libs.local.versions=current 43 | libs.local.url=http://127.0.0.1 44 | libs.local.versions.current.name=LOCAL_current 45 | libs.local.versions.current.path=/home/pseyfert/.local/include 46 | 47 | libs.moore.name=MOORE 48 | libs.moore.versions=v30r0 49 | libs.moore.url=https://google.com/sorry 50 | libs.moore.versions.v30r0.name=Moore_v30r0 51 | libs.moore.versions.v30r0.path=/cvmfs/lhcb.cern.ch/lib/lhcb/MOORE/MOORE_v30r0/InstallArea/x86_64-centos7-gcc7-opt/include 52 | ``` 53 | 54 | When these files get updated, Compiler Explorer automatically restarts. 55 | 56 | ### What needs additions from my side 57 | 58 | The next problem are transitive dependencies. I.e. I might add the installed 59 | header dirs of the Brunel project to my instance, but basically all headers 60 | would include something from the Rec, LHCb, or Gaudi projects, which then 61 | depend on our Boost version, VDT, ROOT, the Microsoft guideline support library 62 | (GSL), the GNU scientific library (GSL, I'm not kidding we have a naming 63 | collision here), and so on (and all in the right version). 64 | 65 | My point is, it's not too much to ask a user "If you use Rec, ROOT, and Boost, 66 | then click all three of them", but a transitive include would turn this into a 67 | frustrating try-and-fix-compilation-error cycle. 68 | 69 | One way to get these right is taking a look at the 70 | `compile_commands.json` database as written by cmake which contains 71 | effectively a list of all compilations without any build framework 72 | variables: 73 | 74 | ```json 75 | [ 76 | { 77 | "directory": "/workspace/build/BRUNEL/BRUNEL_HEAD/build/Rec/BrunelCache", 78 | "command": "/afs/cern.ch/work/m/marcocle/workspace/LbScripts/LbUtils/scripts/lcg-g++-7.3.0 -DBOOST_FILESYSTEM_VERSION=3 -DBOOST_SPIRIT_USE_PHOENIX_V3 -DBrunel_FunctorCache_EXPORTS -DGAUDI_V20_COMPAT -DPACKAGE_NAME=\\\"BrunelCache\\\" -DPACKAGE_VERSION=\\\"HEAD\\\" -D_GNU_SOURCE -Df2cFortran -Dlinux -Dunix -I/workspace/build/BRUNEL/BRUNEL_HEAD/build/Rec/BrunelCache -I/workspace/build/BRUNEL/BRUNEL_HEAD/Rec/BrunelCache -I/cvmfs/lhcb.cern.ch/lib/lcg/releases/LCG_93/Python/2.7.13/x86_64-centos7-gcc7-opt/include/python2.7 -I/cvmfs/lhcb.cern.ch/lib/lcg/releases/LCG_93/cppgsl/b07383ea/x86_64-centos7-gcc7-opt -I/cvmfs/lhcb.cern.ch/lib/lcg/releases/LCG_93/vdt/0.3.9/x86_64-centos7-gcc7-opt/include -I/cvmfs/lhcb.cern.ch/lib/lcg/releases/LCG_93/clhep/2.4.0.1/x86_64-centos7-gcc7-opt/include -I/cvmfs/lhcb.cern.ch/lib/lcg/releases/LCG_93/GSL/2.1/x86_64-centos7-gcc7-opt/include -I/cvmfs/lhcb.cern.ch/lib/lcg/releases/LCG_93/rangev3/0.3.0/x86_64-centos7-gcc7-opt/include -I/cvmfs/lhcb.cern.ch/lib/lcg/releases/LCG_93/AIDA/3.2.1/x86_64-centos7-gcc7-opt/src/cpp -I/cvmfs/lhcb.cern.ch/lib/lcg/releases/LCG_93/tbb/2018_U1/x86_64-centos7-gcc7-opt/include -isystem /cvmfs/lhcb.cern.ch/lib/lcg/releases/LCG_93/ROOT/6.12.06/x86_64-centos7-gcc7-opt/include -isystem /cvmfs/lhcb.cern.ch/lib/lcg/releases/LCG_93/Boost/1.66.0/x86_64-centos7-gcc7-opt/include -I/workspace/build/BRUNEL/BRUNEL_HEAD -I/workspace/build/BRUNEL/BRUNEL_HEAD/build/include -I/workspace/build/REC/REC_HEAD/InstallArea/x86_64+avx2+fma-centos7-gcc7-opt/include -I/workspace/build/LBCOM/LBCOM_HEAD/InstallArea/x86_64+avx2+fma-centos7-gcc7-opt/include -I/workspace/build/LHCB/LHCB_HEAD/InstallArea/x86_64+avx2+fma-centos7-gcc7-opt/include -I/workspace/build/GAUDI/GAUDI_master/InstallArea/x86_64+avx2+fma-centos7-gcc7-opt/include -mavx2 -mfma -fmessage-length=0 -pipe -Wall -Wextra -Werror=return-type -pthread -pedantic -Wwrite-strings -Wpointer-arith -Woverloaded-virtual -Wsuggest-override -std=c++17 -fdiagnostics-color -O3 -DNDEBUG -fPIC -o CMakeFiles/Brunel_FunctorCache.dir/Brunel_FunctorCache_srcs/FUNCTORS_Hlt2HltFactory_0001.cpp.o -c /workspace/build/BRUNEL/BRUNEL_HEAD/build/Rec/BrunelCache/Brunel_FunctorCache_srcs/FUNCTORS_Hlt2HltFactory_0001.cpp", 79 | "file": "/workspace/build/BRUNEL/BRUNEL_HEAD/build/Rec/BrunelCache/Brunel_FunctorCache_srcs/FUNCTORS_Hlt2HltFactory_0001.cpp" 80 | }, 81 | { 82 | "directory": "/workspace/build/BRUNEL/BRUNEL_HEAD/build/Rec/BrunelCache", 83 | "command": "/afs/cern.ch/work/m/marcocle/workspace/LbScripts/LbUtils/scripts/lcg-g++-7.3.0 -DBOOST_FILESYSTEM_VERSION=3 -DBOOST_SPIRIT_USE_PHOENIX_V3 -DBrunel_FunctorCache_EXPORTS -DGAUDI_V20_COMPAT -DPACKAGE_NAME=\\\"BrunelCache\\\" -DPACKAGE_VERSION=\\\"HEAD\\\" -D_GNU_SOURCE -Df2cFortran -Dlinux -Dunix -I/workspace/build/BRUNEL/BRUNEL_HEAD/build/Rec/BrunelCache -I/workspace/build/BRUNEL/BRUNEL_HEAD/Rec/BrunelCache -I/cvmfs/lhcb.cern.ch/lib/lcg/releases/LCG_93/Python/2.7.13/x86_64-centos7-gcc7-opt/include/python2.7 -I/cvmfs/lhcb.cern.ch/lib/lcg/releases/LCG_93/cppgsl/b07383ea/x86_64-centos7-gcc7-opt -I/cvmfs/lhcb.cern.ch/lib/lcg/releases/LCG_93/vdt/0.3.9/x86_64-centos7-gcc7-opt/include -I/cvmfs/lhcb.cern.ch/lib/lcg/releases/LCG_93/clhep/2.4.0.1/x86_64-centos7-gcc7-opt/include -I/cvmfs/lhcb.cern.ch/lib/lcg/releases/LCG_93/GSL/2.1/x86_64-centos7-gcc7-opt/include -I/cvmfs/lhcb.cern.ch/lib/lcg/releases/LCG_93/rangev3/0.3.0/x86_64-centos7-gcc7-opt/include -I/cvmfs/lhcb.cern.ch/lib/lcg/releases/LCG_93/AIDA/3.2.1/x86_64-centos7-gcc7-opt/src/cpp -I/cvmfs/lhcb.cern.ch/lib/lcg/releases/LCG_93/tbb/2018_U1/x86_64-centos7-gcc7-opt/include -isystem /cvmfs/lhcb.cern.ch/lib/lcg/releases/LCG_93/ROOT/6.12.06/x86_64-centos7-gcc7-opt/include -isystem /cvmfs/lhcb.cern.ch/lib/lcg/releases/LCG_93/Boost/1.66.0/x86_64-centos7-gcc7-opt/include -I/workspace/build/BRUNEL/BRUNEL_HEAD -I/workspace/build/BRUNEL/BRUNEL_HEAD/build/include -I/workspace/build/REC/REC_HEAD/InstallArea/x86_64+avx2+fma-centos7-gcc7-opt/include -I/workspace/build/LBCOM/LBCOM_HEAD/InstallArea/x86_64+avx2+fma-centos7-gcc7-opt/include -I/workspace/build/LHCB/LHCB_HEAD/InstallArea/x86_64+avx2+fma-centos7-gcc7-opt/include -I/workspace/build/GAUDI/GAUDI_master/InstallArea/x86_64+avx2+fma-centos7-gcc7-opt/include -mavx2 -mfma -fmessage-length=0 -pipe -Wall -Wextra -Werror=return-type -pthread -pedantic -Wwrite-strings -Wpointer-arith -Woverloaded-virtual -Wsuggest-override -std=c++17 -fdiagnostics-color -O3 -DNDEBUG -fPIC -o CMakeFiles/Brunel_FunctorCache.dir/Brunel_FunctorCache_srcs/FUNCTORS_Hlt1HltFactory_0001.cpp.o -c /workspace/build/BRUNEL/BRUNEL_HEAD/build/Rec/BrunelCache/Brunel_FunctorCache_srcs/FUNCTORS_Hlt1HltFactory_0001.cpp", 84 | "file": "/workspace/build/BRUNEL/BRUNEL_HEAD/build/Rec/BrunelCache/Brunel_FunctorCache_srcs/FUNCTORS_Hlt1HltFactory_0001.cpp" 85 | }, 86 | ... 87 | ``` 88 | 89 | These are not relocatable (or … at least not without some work). The 90 | `/workspace/build` paths are all local on the build machine and can be source 91 | directories, or install directories of dependencies, or build directories (for 92 | copied or generated files). The `/workspace/build/.../InstallArea/` paths get 93 | deployed to cvmfs on `/cvmfs/lhcbdev.cern.ch/nightlies/...` (where the `...` is 94 | not the same in the two paths) in case of the nightly build. Released versions 95 | end up on `/cvmfs/lhcb.cern.ch/lib/lhcb/...` but I don't care about them at the 96 | moment. 97 | 98 | I work with the following assumptions: 99 | 100 | * If a user picks the Gaudi project to work with, they intend to work with 101 | code that is intended to go into Gaudi. So they may rely on public headers 102 | of "packages" in Gaudi. Therefore: the installed `include` directory needs to 103 | be in the include paths of Compiler Explorer. 104 | * With the same argument, they need to get all dependencies of Gaudi. 105 | * I do not filter inter-project dependencies: so external dependencies of all 106 | Gaudi packages get added to the path, regardless if the user's package has 107 | that dependency or not. 108 | * I do not filter inter-project dependencies: so even public Gaudi headers of 109 | all Gaudi packages are available, even if the user could not access them in 110 | real Gaudi (if that would reverse the inter-package dependency) 111 | * Local (not installed) headers are "hard" to access when the user puts it in 112 | the their package: They are only accessible within a package but not across 113 | packages. They are furthermore not available in the `InstallArea` on cvmfs 114 | (though they are deployed elsewhere in cvmfs, because it's nice to have sources 115 | available). Since I don't want to add the complexity of packages, I don't 116 | make them accessible. 117 | 118 | Clearly that is not ideal for all users but keeps the complexity of the phase 119 | space of configurations managable (one per project instead of one per package). 120 | 121 | And if a user wants additional local headers, they can provide absolute paths 122 | to cvmfs. 123 | 124 | In a first version, I had just picked the includes of one random translation 125 | unit and did some replacements in my text editor to reach the Compiler Explorer 126 | syntax. But that wouldn't scale when the nightlies would switch to a new ROOT 127 | or LCG version and has limited copy-and-paste capabilities (different ROOT 128 | version in different nightly slot configurations). 129 | 130 | So I figured I need an automatic parser of the `compile_commands.json`, ideally 131 | written in a language that has a json parser, and ended up writing 132 | [**github.com/pseyfert/compilecommands\_to\_compilerexplorer**](https://github.com/pseyfert/compilecommands_to_compilerexplorer) 133 | in go. The decision for go was mostly because I want to learn it and practise 134 | probably helps. 135 | 136 | The go application basically goes through all translation units specified in 137 | the json database, gets the command, filters `-I` and `-isystem` out and builds 138 | the union of all include paths of all translation units. Then applies the 139 | filters I want to apply (replace paths in `InstallArea`s with their guessed 140 | target on cvmfs, add the project itself, remove source dirs), according to 141 | heuristics derived from how I read these paths. 142 | 143 | I then run a loop over several of these jsons to get a set of libraries and 144 | versions and write out the compiler explorer configuration. 145 | 146 | The only slightly tricky bit was specify a library once, list all versions 147 | once, and then list the path *for each* version of a library. 148 | 149 | The application is now in a cron job, replacing the Compiler Explorer 150 | configuration once per hour based on what it finds installed on cvmfs. 151 | (Nightly slots are often unavailable because the deployment isn't finished or 152 | the build failed, or the version/slot combination just isn't selected for 153 | deployment - my loop is pretty stupid - so the program is tolerant on not 154 | finding projects and only aborts if not a single project is found. That would 155 | result in an invalid configuration at the moment.) 156 | 157 | One last aspect I realised when browsing through twitter is, that the config 158 | file writing should better be atomic (such that Compiler Explorer only ever 159 | sees complete files). I use [renameio-write](https://github.com/google/renameio) for 160 | that purpose. 161 | 162 | ### Compilers 163 | 164 | On my laptop I hardly faced problems with using Compiler Explorer as-is. The 165 | system compiler was decent enough, although we got a few new build errors with 166 | gcc 8, that I didn't yet see in the nightlies back when they were gcc 7 as 167 | latest. Setting up compilers for our stack is a bit of an unexpected nightmare 168 | (setting up `LD_LIBRARY_PATH` and other toolchain parts or the undocumented 169 | `COMPILER_PATH` for clang). The only way to compile stuff is the `lcg-` 170 | wrappers such as 171 | 172 | ```sh 173 | /cvmfs/lhcb.cern.ch/lib/lhcb/LBSCRIPTS/LBSCRIPTS_v9r2p4/InstallArea/scripts/lcg-g++-7.3.0 174 | ``` 175 | 176 | These are shell scripts that forward all arguments to a compiler that's called 177 | with the right environment setup. 178 | 179 | We're working on an updated setup (actually, the latest version of the old 180 | wrappers fails on my VM because the host OS isn't detected correctly). The new 181 | config for my VM is: 182 | 183 | ``` 184 | compilers=&lcgg:&lcgclang 185 | defaultCompiler=lcgg730 186 | 187 | group.lcgg.compilers=lcgg493:lcgg720:lcgg820:lcgg620:lcgg730:lcgg710:lcgg810 188 | group.lcgg.groupName=lcg-g++ 189 | 190 | compiler.lcgg493.name=lcg-g++-4.9.3 191 | compiler.lcgg720.name=lcg-g++-7.2.0 192 | compiler.lcgg820.name=lcg-g++-8.2.0 193 | compiler.lcgg620.name=lcg-g++-6.2.0 194 | compiler.lcgg730.name=lcg-g++-7.3.0 195 | compiler.lcgg710.name=lcg-g++-7.1.0 196 | compiler.lcgg810.name=lcg-g++-8.1.0 197 | compiler.lcgg493.exe=/cvmfs/lhcb.cern.ch/lib/bin/x86_64-centos7/lcg-g++-4.9.3 198 | compiler.lcgg720.exe=/cvmfs/lhcb.cern.ch/lib/bin/x86_64-centos7/lcg-g++-7.2.0 199 | compiler.lcgg820.exe=/cvmfs/lhcb.cern.ch/lib/bin/x86_64-centos7/lcg-g++-8.2.0 200 | compiler.lcgg620.exe=/cvmfs/lhcb.cern.ch/lib/bin/x86_64-centos7/lcg-g++-6.2.0 201 | compiler.lcgg730.exe=/cvmfs/lhcb.cern.ch/lib/bin/x86_64-centos7/lcg-g++-7.3.0 202 | compiler.lcgg710.exe=/cvmfs/lhcb.cern.ch/lib/bin/x86_64-centos7/lcg-g++-7.1.0 203 | compiler.lcgg810.exe=/cvmfs/lhcb.cern.ch/lib/bin/x86_64-centos7/lcg-g++-8.1.0 204 | 205 | group.lcgclang.compilers=lcgclang600:hack 206 | group.lcgclang.groupName=lcg-clang++ 207 | 208 | compiler.lcgclang600.name=lcg-clang++-6.0.0 209 | compiler.lcgclang600.exe=/cvmfs/lhcb.cern.ch/lib/bin/x86_64-centos7/lcg-clang++-6.0.0 210 | 211 | compiler.hack.name=hacked clang 6.0.0 with gcc 7.3.0 binutils 212 | compiler.hack.exe=/home/pseyfert/hack 213 | ``` 214 | 215 | The released clang 6 uses gcc 6.2 binutils / headers, so fails with c++17. My 216 | hack uses a newer version that uses gcc7 headers but isn't fully deployed yet, 217 | so I won't go into details. The setup isn't automised at the moment, and the 218 | defaultCompiler is just what I see in the imho most relevant nightly slot. 219 | 220 | ### Compiler options 221 | 222 | Our stack is c++17 and for sure compilations w/o c++11 will fail immediately. 223 | We're also interested in vectorization, which depends on compiler flags, so I 224 | want to provide users with the nightly compiler options by default, so they're 225 | looking at "the right" thing. For `etc/config/c++.defaults.properties` this 226 | means: 227 | 228 | ``` 229 | group.lcgg.options=-DBOOST_FILESYSTEM_VERSION=3 -DBOOST_SPIRIT_USE_PHOENIX_V3 -DGAUDI_LINKER_LIBRARY -DGAUDI_V20_COMPAT -DPACKAGE_NAME="CompilerExplorer" -DPACKAGE_VERSION="v0r0" -D_GNU_SOURCE -Df2cFortran -Dlinux -Dunix -mavx2 -mfma -fmessage-length=0 -pipe -Wall -Wextra -Werror=return-type -pthread -pedantic -Wwrite-strings -Wpointer-arith -Woverloaded-virtual -Wsuggest-override -std=c++17 -fdiagnostics-color -O3 -DNDEBUG -fPIC 230 | compiler.lcgg493.options=-DBOOST_FILESYSTEM_VERSION=3 -DBOOST_SPIRIT_USE_PHOENIX_V3 -DGAUDI_LINKER_LIBRARY -DGAUDI_V20_COMPAT -DPACKAGE_NAME="CompilerExplorer" -DPACKAGE_VERSION="v0r0" -D_GNU_SOURCE -Df2cFortran -Dlinux -Dunix -mavx2 -mfma -fmessage-length=0 -pipe -Wall -Wextra -Werror=return-type -pthread -pedantic -Wwrite-strings -Wpointer-arith -Woverloaded-virtual -fdiagnostics-color -O3 -DNDEBUG -fPIC 231 | compiler.hack.options=--gcc-toolchain=/cvmfs/sft.cern.ch/lcg/releases/clang/6.0.0-6647e/x86_64-centos7-gcc62-opt/../../../gcc/7.3.0-90605/x86_64-centos7-gcc62-opt -DBOOST_FILESYSTEM_VERSION=3 -DBOOST_SPIRIT_USE_PHOENIX_V3 -DGAUDI_LINKER_LIBRARY -DGAUDI_V20_COMPAT -DPACKAGE_NAME="CompilerExplorer" -DPACKAGE_VERSION="v0r0" -D_GNU_SOURCE -Df2cFortran -Dlinux -Dunix -mavx2 -mfma -fmessage-length=0 -pipe -Wall -Wextra -Werror=return-type -pthread -pedantic -Wwrite-strings -Wpointer-arith -Woverloaded-virtual -std=c++17 -fdiagnostics-color -O3 -DNDEBUG -fPIC 232 | ``` 233 | 234 | This is copy and paste from the compiler wrapper and the 235 | `compile_commands.json`. Automisation is yet to come. These settings are the 236 | same for all compilers (except where they don't make sense - clang needs 237 | `-Wsuggest-override` removed because it doesn't exist. The old gcc doesn't know 238 | c++17). An issue with this is, compiler options depend on the nightly slot 239 | (what I use as library version) and not on compilers. So I intend to provide 240 | the user with several different `g++ 7`, pointing to the same binary, but 241 | configured with different options. The options shall then come from the 242 | `compile_commands.json`. The draft is in the parser on github, but it's a bit 243 | more tricky because these options change from translation unit to translation 244 | unit: dedicated settings by a package developer and we differ between libraries 245 | and modules through `-DGAUDI_LINKER_LIBRARY`, so I doubt a union of all options 246 | is a good idea. 247 | 248 | Another trouble is character escaping. As you can see above, the 249 | `compile_commands.json` syntax for `-D` defined strings is 250 | 251 | ```json 252 | -DPACKAGE_NAME=\\\"BrunelCache\\\" 253 | ``` 254 | 255 | and Compiler Explorer needs it as 256 | 257 | ``` 258 | -DPACKAGE_NAME="CompilerExplorer" 259 | ``` 260 | 261 | my draft for option parsing 262 | [here](https://github.com/pseyfert/compilecommands_to_compilerexplorer/blob/d6651a8f9e2bd65c28ca8e09e9e0dd1d38928b32/cc2ce/in.go#L87) 263 | removes these three-backslash-single-double-quote and replaces them by a single 264 | double-quote (twice per definition). Although the need to escape these in the 265 | go source doesn't lead to pretty code. 266 | 267 | ### Formatting 268 | 269 | We have our own in house clang-format style. By default Compiler Explorer only 270 | offers the clang-format builtin styles, but the drop down menu can be extended 271 | in `static/settings.js` to 272 | 273 | ```js 274 | var formats = ["file", "Google", "LLVM", "Mozilla", "Chromium", "WebKit"]; 275 | ``` 276 | 277 | The only question is, how does clang-format then find our format style? I put 278 | it in the `compiler-explorer` main directory and that seems to work. 279 | 280 | The formatting result also depends on the clang-format version, so I use the 281 | one we deployed for the gitlab continous integration, in `etc/config/compiler-explorer.defaults.properties` 282 | 283 | ``` 284 | formatter.clangformat.exe=/cvmfs/lhcb.cern.ch/lib/bin/x86_64-centos7/lcg-clang-format-3.9 285 | ``` 286 | 287 | And then I disabled other styles in `etc/config/compiler-explorer.defaults.properties` with 288 | 289 | ``` 290 | formatter.clangformat.styles=file 291 | ``` 292 | 293 | Users will get an error message if they try other styles (I could also remove 294 | them from the menu above …). 295 | 296 | ### other tweaks 297 | 298 | Building with range v3, my compilations often timed out, so the timeout in 299 | `etc/config/compiler-explorer.defaults.properties` needs to be increased to 300 | 301 | ``` 302 | compileTimeoutMs=90000 303 | ``` 304 | 305 | ### server setup 306 | 307 | #### network and security 308 | 309 | As Matt Godbolt said in his talk at CppCon, compilers are a big security 310 | nightmare. Basically my Compiler Explorer instance's website grants remote code 311 | execution to everybody. Including writing to the file system. Since I didn't 312 | even want to hang that behind the CERN firewall into the network for everybody 313 | to use, or even allow individual users to access my CERN account's home dir, I 314 | set up a VM that does not use the CERN user database but has "normal" local 315 | users. I also set up iptables to only accept connections from localhost, so 316 | only users to whom I gave a login can access Compiler Explorer. At this point 317 | the website hardly grants them more rights than they have already (they can 318 | just compile on the command line). 319 | 320 | ``` 321 | # /etc/iptables/iptables.rules 322 | ... 323 | -A INPUT -p tcp -m tcp --dport 10240 -j DROP 324 | ``` 325 | 326 | The machine is a CernVM (strangely running Scientific Linux 7 and not CentOS 7, 327 | but so be it) where iptables is not enabled by default, so 328 | 329 | ```sh 330 | systemctl enable iptables 331 | systemctl start iptables 332 | ``` 333 | 334 | Users can now use the website by opening an ssh tunnel (due to firewall 335 | settings only from within the CERN network): 336 | 337 | ```sh 338 | ssh -L :127.0.0.1:10240 @pseyfert-ce 339 | ``` 340 | 341 | and then access `localhost:` in their local webbrowser. 342 | 343 | #### Compiler Explorer process 344 | 345 | On my local laptop I just start Compiler Explorer with `make` in a shell. For a 346 | running server that's not cool (when I log out, the site goes down). A first 347 | bodge was to run `make` in a screen session, but that still requires manual 348 | restarting after a reboot. I was told systemd is what to cool kids are doing. 349 | Originally I wanted to run Compiler Explorer as a user (not as root), so I 350 | looked up how users can run systemd. The problem is, that feature is not 351 | available on the redhat version SL7 is based on, but I found that root can 352 | specify in system systemd files as which user a process should be running: 353 | 354 | ``` 355 | [Unit] 356 | Description=Compiler Explorer 357 | # dependencies are a bit guessed at this point, based on units I saw on the system 358 | After=autofs.service network-online.target network.target cernvm.service 359 | Wants=autofs.service network-online.target cernvm.service 360 | 361 | [Service] 362 | WorkingDirectory=/home/pseyfert/compiler-explorer 363 | ExecStart=/usr/bin/make 364 | # run as `pseyfert` 365 | User=pseyfert 366 | 367 | [Install] 368 | WantedBy=default.target 369 | ``` 370 | 371 | The configuration generation remains a cron job of the user for now. 372 | 373 | ### other annoyances 374 | 375 | Scientific Linux 7 comes with a too-old node.js version. Had to follow the 376 | node.js instructions how to install a more recent version. Fingers crossed the 377 | next auto-update won't destroy it. 378 | -------------------------------------------------------------------------------- /lb-CE-collect-nightlies/main.go: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2018 CERN for the benefit of the LHCb collaboration 3 | * Author: Paul Seyfert 4 | * 5 | * This software is distributed under the terms of the GNU General Public 6 | * Licence version 3 (GPL Version 3), copied verbatim in the file "LICENSE". 7 | * 8 | * In applying this licence, CERN does not waive the privileges and immunities 9 | * granted to it by virtue of its status as an Intergovernmental Organization 10 | * or submit itself to any jurisdiction. 11 | */ 12 | 13 | package main 14 | 15 | import ( 16 | "flag" 17 | "log" 18 | "os" 19 | 20 | "github.com/pseyfert/compilecommands_to_compilerexplorer/cc2ce4lhcb" 21 | ) 22 | 23 | func main() { 24 | days := []string{"latest", "Today", "Yesterday", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"} 25 | top_projects := []string{"Brunel", "Gaudi", "Rec", "LHCb", "Phys"} 26 | var conffilename string 27 | flag.StringVar(&cc2ce4lhcb.Nightlyroot, "nightly-base", "/cvmfs/lhcbdev.cern.ch/nightlies/", "add the specified directory to the nightly builds search path") 28 | flag.StringVar(&conffilename, "o", "./c++.local.properties", "output filename") 29 | flag.Parse() 30 | 31 | projects := []cc2ce4lhcb.Project{} 32 | 33 | slots := []string{"lhcb-head", "lhcb-gaudi-head"} 34 | cc2ce4lhcb.Cmtconfig = "x86_64+avx2+fma-centos7-gcc9-opt" 35 | 36 | looper := func() { 37 | for _, slot := range slots { 38 | for _, day := range days { 39 | for _, top_project := range top_projects { 40 | var p cc2ce4lhcb.Project 41 | p.Slot = slot 42 | p.Day = day 43 | p.Project = top_project 44 | incs, err := cc2ce4lhcb.Parse_and_generate(p, cc2ce4lhcb.Nightlyroot, cc2ce4lhcb.Cmtconfig) 45 | if err != nil { 46 | if os.IsNotExist(err) { 47 | log.Printf("configuration doesn't exist: %v", err) 48 | // this slot doesn't exist on cvmfs (not set up for publication, or build failed) 49 | // just skip 50 | } else { 51 | log.Printf("%v", err) 52 | os.Exit(7) 53 | } 54 | } else { 55 | p.IncludeMap = incs 56 | projects = append(projects, p) 57 | } 58 | } 59 | } 60 | } 61 | } 62 | 63 | looper() 64 | 65 | slots = []string{"lhcb-lcg-dev3", "lhcb-lcg-dev4", "lhcb-tdr-test"} 66 | cc2ce4lhcb.Cmtconfig = "x86_64-centos7-gcc9-opt" 67 | 68 | looper() 69 | 70 | cc2ce4lhcb.Create(projects, conffilename) 71 | } 72 | -------------------------------------------------------------------------------- /lb-CE-single-nightly-project/main.go: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2018 CERN for the benefit of the LHCb collaboration 3 | * Author: Paul Seyfert 4 | * 5 | * This software is distributed under the terms of the GNU General Public 6 | * Licence version 3 (GPL Version 3), copied verbatim in the file "LICENSE". 7 | * 8 | * In applying this licence, CERN does not waive the privileges and immunities 9 | * granted to it by virtue of its status as an Intergovernmental Organization 10 | * or submit itself to any jurisdiction. 11 | */ 12 | 13 | package main 14 | 15 | import ( 16 | "flag" 17 | "fmt" 18 | "log" 19 | "os" 20 | 21 | "github.com/pseyfert/compilecommands_to_compilerexplorer/cc2ce" 22 | "github.com/pseyfert/compilecommands_to_compilerexplorer/cc2ce4lhcb" 23 | ) 24 | 25 | func main() { 26 | var p cc2ce4lhcb.Project 27 | var conffilename string 28 | flag.StringVar(&p.Slot, "slot", "lhcb-head", "nightlies slot (i.e. directory in /cvmfs/lhcbdev.cern.ch/nightlies/)") 29 | flag.StringVar(&p.Day, "day", "Today", "day/buildID (i.e. subdirectory, such as 'Today', 'Mon', or '2032')") 30 | flag.StringVar(&p.Project, "project", "Brunel", "project (such as Rec, Brunel, LHCb, Lbcom)") 31 | flag.StringVar(&p.Version, "version", "HEAD", "version (i.e. the stuff after the underscore like HEAD or 2016-patches)") 32 | flag.StringVar(&cc2ce4lhcb.Cmtconfig, "cmtconfig", "x86_64+avx2+fma-centos7-gcc7-opt", "platform, like x86_64+avx2+fma-centos7-gcc7-opt or x86_64-centos7-gcc7-opt") 33 | flag.StringVar(&cc2ce4lhcb.Nightlyroot, "nightly-base", "/cvmfs/lhcbdev.cern.ch/nightlies/", "add the specified directory to the nightly builds search path") 34 | flag.StringVar(&conffilename, "o", "./c++.local.properties", "output filename") 35 | flag.BoolVar(&cc2ce4lhcb.Released, "R", false, "look for released projects") 36 | flag.Parse() 37 | incs, err := cc2ce4lhcb.Parse_and_generate(p, cc2ce4lhcb.Nightlyroot, cc2ce4lhcb.Cmtconfig) 38 | if err != nil { 39 | log.Printf("couldn't read json: %v", err) 40 | os.Exit(1) 41 | } 42 | 43 | p.IncludeMap = incs 44 | 45 | fmt.Println(cc2ce.ColonSeparateMap(p.IncludeMap)) 46 | cc2ce4lhcb.Create([]cc2ce4lhcb.Project{p}, conffilename) 47 | } 48 | --------------------------------------------------------------------------------