aboutsummaryrefslogtreecommitdiffstatshomepage
path: root/action.yml
blob: d92d72edd123dfe35c0d5dab3e9e6608f2c4fc00 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
name: Install MinGW
description: Install MinGW-w64

inputs:
  platform:
    description: Target platform
    required: false
    default: x64
  cygwin:
    description: Install Cygwin packages
    required: false
    default: 0
  static:
    description: Enable static linking workaround
    required: false
    default: 1
  cc:
    description: Set up cc/c++ executables
    required: false
    default: 1
  hardlinks:
    description: On Cygwin, replace executable symlinks with hardlinks
    required: false
    default: 0

outputs:
  prefix:
    description: Cross-compilation toolchain prefix
    value: '${{ steps.setup.outputs.prefix }}'
  gcc:
    description: gcc binary name
    value: '${{ steps.setup.outputs.gcc }}'
  gxx:
    description: g++ binary name
    value: '${{ steps.setup.outputs.gxx }}'
  windres:
    description: windres binary name
    value: '${{ steps.setup.outputs.windres }}'

runs:
  using: composite
  steps:
    - id: setup
      run: |
        New-Variable os -Value '${{ runner.os }}' -Option Constant

        New-Variable linux_host -Value ($os -eq 'Linux') -Option Constant
        New-Variable cygwin_host -Value ('${{ inputs.cygwin }}' -eq '1') -Option Constant
        New-Variable windows_host -Value ($os -eq 'Windows' -and !$cygwin_host) -Option Constant

        New-Variable x64 -Value ('${{ inputs.platform }}' -eq 'x64') -Option Constant
        New-Variable static_workaround -Value ('${{ inputs.static }}' -eq '1') -Option Constant

        $prefix32 = 'i686-w64-mingw32'
        $prefix64 = 'x86_64-w64-mingw32'
        $prefix = if ($x64) { $prefix64 } else { $prefix32 }

        function Locate-Choco {
            $path = Get-Command 'choco' -ErrorAction SilentlyContinue
            if ($path) {
                $path.Path
            } else {
                Join-Path ${env:ProgramData} 'chocolatey' 'bin' 'choco'
            }
        }

        function Install-Package {
            param(
                [Parameter(Mandatory=$true, ValueFromRemainingArguments=$true)]
                [string[]] $Packages
            )

            if ($script:linux_host) {
                sudo apt-get update
                sudo DEBIAN_FRONTEND=noninteractive apt-get install -yq --no-install-recommends $Packages
            } elseif ($script:cygwin_host) {
                $choco = Locate-Choco
                & $choco install $Packages -y --no-progress --source=cygwin
            } elseif ($script:windows_host) {
                $choco = Locate-Choco
                & $choco upgrade $Packages -y --no-progress --allow-downgrade
            } else {
                throw "Sorry, installing packages is unsupported on $script:os"
            }
        }

        function Remove-Package {
            param(
                [Parameter(Mandatory=$true, ValueFromRemainingArguments=$true)]
                [string[]] $Packages
            )

            if ($script:linux_host) {
                sudo apt-get autoremove --purge -yq $Packages
            } elseif ($script:cygwin_host) {
                $choco = Locate-Choco
                & $choco uninstall $Packages -y --no-progress --source=cygwin
            } elseif ($script:windows_host) {
                $choco = Locate-Choco
                & $choco uninstall $Packages -y --no-progress
            } else {
                throw "Sorry, removing packages is unsupported on $script:os"
            }
        }

        if ($linux_host) {
            Install-Package mingw-w64

            # Make the compilers use the POSIX threading model, whatever that
            # is.  Without it, the stuff from <mutex>/<thread>/etc. doesn't
            # compile.  Of course, it makes the binaries depend on
            # libwinpthread-1.dll, but what you gonna do?

            sudo update-alternatives --set "$prefix32-gcc" "/usr/bin/$prefix32-gcc-posix"
            sudo update-alternatives --set "$prefix32-g++" "/usr/bin/$prefix32-g++-posix"
            sudo update-alternatives --set "$prefix64-gcc" "/usr/bin/$prefix64-gcc-posix"
            sudo update-alternatives --set "$prefix64-g++" "/usr/bin/$prefix64-g++-posix"

            if ($static_workaround) {
                sudo rm `
                    "/usr/$prefix32/lib/libpthread.dll.a" `
                    "/usr/$prefix32/lib/libwinpthread.dll.a" `
                    "/usr/$prefix64/lib/libpthread.dll.a" `
                    "/usr/$prefix64/lib/libwinpthread.dll.a"
            }
        } elseif ($cygwin_host) {
            $pkg = if ($x64) { 'mingw64-x86_64-gcc-g++' } else { 'mingw64-i686-gcc-g++' }
            Install-Package $pkg

            $bin_dir = cygpath.exe -wa "/usr/$prefix/sys-root/mingw/bin"
            $lib_dir = cygpath.exe -wa "/usr/$prefix/sys-root/mingw/lib"

            echo $bin_dir >> $env:GITHUB_PATH

            if ($static_workaround) {
                Remove-Item (Join-Path $lib_dir 'libpthread.dll.a')
                Remove-Item (Join-Path $lib_dir 'libwinpthread.dll.a')
            }
        } elseif ($windows_host) {
            $choco = Locate-Choco

            $mingw32 = 'mingw32'
            $mingw64 = 'mingw64'
            $mingw = if ($x64) { $mingw64 } else { $mingw32 }

            $mingw_install = Join-Path C: ProgramData chocolatey lib mingw tools install
            $mingw_root = Join-Path $mingw_install $mingw
            $mingw_bin = Join-Path $mingw_root bin
            $mingw_lib = Join-Path $mingw_root $prefix lib

            $pkg = 'mingw'
            # As of 2021-01-15, the latest package version (10.2.0) is broken.
            #   a) I don't think it's been released (at least I haven't found
            #      any announcements).
            #   b) It was seemingly built without threading (no <mutex>,
            #      <thread>, etc.).
            $version = '8.1.0'

            if ($x64) {
                # If the 32-bit version is installed, we won't detect that.
                # But it's not that important, and we save a lot of time.
                Install-Package $pkg --version $version
            } else {
                # Assuming the 64-bit version is installed.
                Remove-Package $pkg
                Install-Package $pkg --version $version --x86
            }
            echo $mingw_bin >> $env:GITHUB_PATH

            if ($static_workaround) {
                Remove-Item (Join-Path $mingw_lib 'libpthread.dll.a')
                Remove-Item (Join-Path $mingw_lib 'libwinpthread.dll.a')
            }
        } else {
            throw "Sorry, installing MinGW is unsupported on $os"
        }

        $gcc = $prefix + '-gcc'
        $gxx = $prefix + '-g++'
        $windres = $prefix = '-windres'

        echo "::set-output name=prefix::$prefix"
        echo "::set-output name=gcc::$gcc"
        echo "::set-output name=gxx::$gxx"
        echo "::set-output name=windres::$windres"
      shell: pwsh

    - run: |
        New-Variable os -Value '${{ runner.os }}' -Option Constant

        New-Variable linux_host -Value ($os -eq 'Linux') -Option Constant
        New-Variable cygwin_host -Value ('${{ inputs.cygwin }}' -eq '1') -Option Constant
        New-Variable windows_host -Value ($os -eq 'Windows' -and !$cygwin_host) -Option Constant

        New-Variable cc -Value ('${{ inputs.cc }}' -eq '1') -Option Constant

        function Link-Exe {
            param(
                [Parameter(Mandatory=$true)]
                [string] $Exe,
                [Parameter(Mandatory=$true)]
                [string] $LinkName
            )

            $exe_path = (Get-Command $Exe).Path
            $link_dir = if ($script:windows_host) { Split-Path $exe_path } else { '/usr/local/bin' }
            $link_name = if ($script:windows_host) { "$LinkName.exe" } else { $LinkName }
            $link_path = if ($script:cygwin_host) { "$link_dir/$link_name" } else { Join-Path $link_dir $link_name }
            echo "Creating link $link_path -> $exe_path"
            if ($script:linux_host) {
                sudo ln -f -s $exe_path $link_path
            } elseif ($script:cygwin_host) {
                ln.exe -f -s $exe_path $link_path
            } elseif ($script:windows_host) {
                New-Item -ItemType HardLink -Path $link_path -Value $exe_path -Force | Out-Null
            }
        }

        if ($cc) {
            Link-Exe '${{ steps.setup.outputs.gcc }}' cc
            Link-Exe '${{ steps.setup.outputs.gxx }}' c++
        }
      shell: pwsh

    - run: |
        New-Variable cygwin_host -Value ('${{ inputs.cygwin }}' -eq '1') -Option Constant
        New-Variable hardlinks -Value ('${{ inputs.hardlinks }}' -eq '1') -Option Constant

        if ($cygwin_host -and $hardlinks) {
            echo @'
        while IFS= read -d '' -r link_path; do
            dest_path="$( readlink --canonicalize-existing -- "$link_path" )"
            dest_ext=".${dest_path##*.}"
            [ "$dest_ext" == ".$dest_path" ] && dest_ext=
            link_ext=".${link_path##*.}"
            [ "$link_ext" == ".$link_path" ] && link_ext=
            echo "Removing symlink $link_path" && rm -f -- "$link_path"
            [ "$link_ext" != "$dest_ext" ] && echo "${PATHEXT//\;/
        }" | grep -q --ignore-case --line-regexp -F -- "$dest_ext" && link_path="$link_path$dest_ext"
            echo "Creating hardlink $link_path -> $dest_path" && ln -- "$dest_path" "$link_path"
        done < <( find /usr/local/bin /usr/bin \
                       -type l '-(' \
                       -path /usr/local/bin/cc -o \
                       -path /usr/local/bin/c++ \
                       '-)' -print0 )
        '@ | & bash.exe --login -o errexit -o nounset -o pipefail -o igncr
        }
      shell: pwsh

branding:
  icon: star
  color: green