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<h3>
Ben Gamari pushed to branch wip/backports
at <a href="https://gitlab.haskell.org/ghc/ghc">Glasgow Haskell Compiler / GHC</a>
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<h4>
Commits:
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<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d4d44edbe4f9acbd523b3cc049f9a6ac3f7f0ddd">d4d44edb</a></strong>
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<span>by Ben Gamari</span>
<i>at 2020-09-22T17:05:52-04:00</i>
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<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">gitlab-ci: Ensure that cabal-install overwrites existing executables

Previously cabal-install wouldn't overwrite toolchain executables if
they already existed (as they likely would due to caching).

(cherry picked from commit 2f7ef2fb3234cdfb89b3da1298fc9c1b7381e418)
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<h4>1 changed file:</h4>
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<a href="#157f7634c25bc6366cb7c9c9edb48e819dce38db">
.gitlab/ci.sh
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<h4>Changes:</h4>
<li id="157f7634c25bc6366cb7c9c9edb48e819dce38db">
<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d4d44edbe4f9acbd523b3cc049f9a6ac3f7f0ddd#157f7634c25bc6366cb7c9c9edb48e819dce38db"><strong>.gitlab/ci.sh</strong></a>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -282,7 +282,12 @@ function fetch_cabal() {</td>
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<pre style="margin: 0;"> <span id="LC282" class="line" lang="shell"><span class="k" style="font-weight: 600;">function </span>setup_toolchain<span class="o" style="font-weight: 600;">()</span> <span class="o" style="font-weight: 600;">{</span></span>
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<pre style="margin: 0;"> <span id="LC283" class="line" lang="shell">  fetch_ghc</span>
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<pre style="margin: 0;"> <span id="LC284" class="line" lang="shell">  fetch_cabal</span>
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<pre style="margin: 0;">-<span id="LC285" class="line" lang="shell">  <span class="nv" style="color: #008080;">cabal_install</span><span class="o" style="font-weight: 600;">=</span><span class="s2" style="color: #d14;">"</span><span class="nv" style="color: #008080;">$CABAL</span><span class="s2" style="color: #d14;"> v2-install --index-state=</span><span class="nv" style="color: #008080;">$hackage_index_state</span><span class="s2" style="color: #d14;"> --installdir=</span><span class="nv" style="color: #008080;">$toolchain</span><span class="s2" style="color: #d14;">/bin"</span></span>
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<pre style="margin: 0;">+<span id="LC285" class="line" lang="shell"></span>
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<pre style="margin: 0;">+<span id="LC286" class="line" lang="shell">  <span class="nv" style="color: #008080;">cabal_install</span><span class="o" style="font-weight: 600;">=</span><span class="s2" style="color: #d14;">"</span><span class="nv" style="color: #008080;">$CABAL</span><span class="s2" style="color: #d14;"> v2-install </span><span class="se" style="color: #d14;">\</span></span>
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<pre style="margin: 0;">+<span id="LC287" class="line" lang="shell"><span class="s2" style="color: #d14;">    --index-state=</span><span class="nv" style="color: #008080;">$hackage_index_state</span><span class="s2" style="color: #d14;"> </span><span class="se" style="color: #d14;">\</span></span>
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<pre style="margin: 0;">+<span id="LC288" class="line" lang="shell"><span class="s2" style="color: #d14;">    --installdir=</span><span class="nv" style="color: #008080;">$toolchain</span><span class="s2" style="color: #d14;">/bin </span><span class="se" style="color: #d14;">\</span></span>
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<pre style="margin: 0;">+<span id="LC289" class="line" lang="shell"><span class="s2" style="color: #d14;">    --overwrite-policy=always"</span></span>
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<pre style="margin: 0;">+<span id="LC290" class="line" lang="shell"></span>
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<pre style="margin: 0;"> <span id="LC291" class="line" lang="shell">  <span class="c" style="color: #998; font-style: italic;"># Avoid symlinks on Windows</span></span>
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<pre style="margin: 0;"> <span id="LC292" class="line" lang="shell">  <span class="k" style="font-weight: 600;">case</span> <span class="s2" style="color: #d14;">"</span><span class="si" style="color: #d14;">$(</span><span class="nb" style="color: #0086b3;">uname</span><span class="si" style="color: #d14;">)</span><span class="s2" style="color: #d14;">"</span> <span class="k" style="font-weight: 600;">in</span></span>
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<pre style="margin: 0;"> <span id="LC293" class="line" lang="shell"><span class="k" style="font-weight: 600;">    </span>MSYS_<span class="k" style="font-weight: 600;">*</span><span class="p">|</span>MINGW<span class="k" style="font-weight: 600;">*</span><span class="p">)</span> <span class="nv" style="color: #008080;">cabal_install</span><span class="o" style="font-weight: 600;">=</span><span class="s2" style="color: #d14;">"</span><span class="nv" style="color: #008080;">$cabal_install</span><span class="s2" style="color: #d14;"> --install-method=copy"</span> <span class="p">;;</span></span>
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