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<title>src/Darcs/Commands/WhatsNew.lhs</title>
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% Copyright (C) 2002-2004 David Roundy
%
% This program is free software; you can redistribute it and/or modify
% it under the terms of the GNU General Public License as published by
% the Free Software Foundation; either version 2, or (at your option)
% any later version.
%
% This program is distributed in the hope that it will be useful,
% but WITHOUT ANY WARRANTY; without even the implied warranty of
% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
% GNU General Public License for more details.
%
% You should have received a copy of the GNU General Public License
% along with this program; see the file COPYING. If not, write to
% the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
% Boston, MA 02110-1301, USA.
\darcsCommand{whatsnew}
\begin{code}
<pre><a name="line-1"></a><span class='hs-comment'>{-# OPTIONS_GHC -cpp #-}</span>
<a name="line-2"></a><span class='hs-comment'>{-# LANGUAGE CPP #-}</span>
<a name="line-3"></a>
<a name="line-4"></a><span class='hs-cpp'>#include "gadts.h"</span>
<a name="line-5"></a>
<a name="line-6"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Commands</span><span class='hs-varop'>.</span><span class='hs-conid'>WhatsNew</span> <span class='hs-layout'>(</span> <span class='hs-varid'>whatsnew</span> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-7"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Exit</span> <span class='hs-layout'>(</span> <span class='hs-conid'>ExitCode</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>exitWith</span> <span class='hs-layout'>)</span>
<a name="line-8"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>List</span> <span class='hs-layout'>(</span> <span class='hs-varid'>sort</span><span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varop'>\\</span><span class='hs-layout'>)</span> <span class='hs-layout'>)</span>
<a name="line-9"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span> <span class='hs-layout'>(</span> <span class='hs-varid'>when</span> <span class='hs-layout'>)</span>
<a name="line-10"></a>
<a name="line-11"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Commands</span> <span class='hs-layout'>(</span> <span class='hs-conid'>DarcsCommand</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>nodefaults</span> <span class='hs-layout'>)</span>
<a name="line-12"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Arguments</span> <span class='hs-layout'>(</span> <span class='hs-conid'>DarcsFlag</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>workingRepoDir</span><span class='hs-layout'>,</span> <span class='hs-varid'>lookforadds</span><span class='hs-layout'>,</span>
<a name="line-13"></a> <span class='hs-varid'>ignoretimes</span><span class='hs-layout'>,</span> <span class='hs-varid'>noskipBoring</span><span class='hs-layout'>,</span>
<a name="line-14"></a> <span class='hs-varid'>unified</span><span class='hs-layout'>,</span> <span class='hs-varid'>summary</span><span class='hs-layout'>,</span> <span class='hs-varid'>noCache</span><span class='hs-layout'>,</span>
<a name="line-15"></a> <span class='hs-varid'>areFileArgs</span><span class='hs-layout'>,</span> <span class='hs-varid'>fixSubPaths</span><span class='hs-layout'>,</span>
<a name="line-16"></a> <span class='hs-varid'>listRegisteredFiles</span><span class='hs-layout'>,</span>
<a name="line-17"></a> <span class='hs-layout'>)</span>
<a name="line-18"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Flags</span><span class='hs-layout'>(</span> <span class='hs-varid'>isUnified</span> <span class='hs-layout'>)</span>
<a name="line-19"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>RepoPath</span> <span class='hs-layout'>(</span> <span class='hs-conid'>SubPath</span><span class='hs-layout'>,</span> <span class='hs-varid'>sp2fn</span> <span class='hs-layout'>)</span>
<a name="line-20"></a>
<a name="line-21"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Repository</span> <span class='hs-layout'>(</span> <span class='hs-conid'>Repository</span><span class='hs-layout'>,</span> <span class='hs-varid'>withRepository</span><span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varop'>$-</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-22"></a> <span class='hs-varid'>amInRepository</span>
<a name="line-23"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>unrecordedChanges</span><span class='hs-layout'>,</span> <span class='hs-varid'>readRecordedAndPending</span><span class='hs-layout'>,</span> <span class='hs-varid'>readRecorded</span><span class='hs-layout'>,</span> <span class='hs-varid'>readUnrecorded</span> <span class='hs-layout'>)</span>
<a name="line-24"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Repository</span><span class='hs-varop'>.</span><span class='hs-conid'>State</span><span class='hs-layout'>(</span> <span class='hs-varid'>restrictBoring</span> <span class='hs-layout'>)</span>
<a name="line-25"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Repository</span><span class='hs-varop'>.</span><span class='hs-conid'>Prefs</span> <span class='hs-layout'>(</span> <span class='hs-varid'>filetypeFunction</span> <span class='hs-layout'>)</span>
<a name="line-26"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Patch</span> <span class='hs-layout'>(</span> <span class='hs-conid'>RepoPatch</span><span class='hs-layout'>,</span> <span class='hs-conid'>Prim</span><span class='hs-layout'>,</span> <span class='hs-varid'>plainSummary</span><span class='hs-layout'>,</span> <span class='hs-varid'>primIsHunk</span><span class='hs-layout'>,</span> <span class='hs-varid'>applyToTree</span> <span class='hs-layout'>)</span>
<a name="line-27"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Patch</span><span class='hs-varop'>.</span><span class='hs-conid'>Permutations</span> <span class='hs-layout'>(</span> <span class='hs-varid'>partitionRL</span> <span class='hs-layout'>)</span>
<a name="line-28"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Patch</span><span class='hs-varop'>.</span><span class='hs-conid'>Real</span> <span class='hs-layout'>(</span> <span class='hs-conid'>RealPatch</span><span class='hs-layout'>,</span> <span class='hs-varid'>prim2real</span> <span class='hs-layout'>)</span>
<a name="line-29"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Patch</span><span class='hs-varop'>.</span><span class='hs-conid'>FileName</span> <span class='hs-layout'>(</span> <span class='hs-varid'>fn2fp</span> <span class='hs-layout'>)</span>
<a name="line-30"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>PrintPatch</span> <span class='hs-layout'>(</span> <span class='hs-varid'>printPatch</span><span class='hs-layout'>,</span> <span class='hs-varid'>contextualPrintPatch</span> <span class='hs-layout'>)</span>
<a name="line-31"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Witnesses</span><span class='hs-varop'>.</span><span class='hs-conid'>Ordered</span> <span class='hs-layout'>(</span> <span class='hs-conid'>FL</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>mapFL_FL</span><span class='hs-layout'>,</span> <span class='hs-varid'>reverseRL</span><span class='hs-layout'>,</span> <span class='hs-varid'>reverseFL</span><span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-conop'>:></span><span class='hs-layout'>)</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>nullFL</span> <span class='hs-layout'>)</span>
<a name="line-32"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Diff</span><span class='hs-layout'>(</span> <span class='hs-varid'>treeDiff</span> <span class='hs-layout'>)</span>
<a name="line-33"></a>
<a name="line-34"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Storage</span><span class='hs-varop'>.</span><span class='hs-conid'>Hashed</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span><span class='hs-layout'>(</span> <span class='hs-varid'>virtualTreeIO</span><span class='hs-layout'>,</span> <span class='hs-varid'>exists</span> <span class='hs-layout'>)</span>
<a name="line-35"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Storage</span><span class='hs-varop'>.</span><span class='hs-conid'>Hashed</span><span class='hs-layout'>(</span> <span class='hs-varid'>readPlainTree</span> <span class='hs-layout'>)</span>
<a name="line-36"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Storage</span><span class='hs-varop'>.</span><span class='hs-conid'>Hashed</span><span class='hs-layout'>(</span> <span class='hs-varid'>floatPath</span> <span class='hs-layout'>)</span>
<a name="line-37"></a>
<a name="line-38"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Printer</span> <span class='hs-layout'>(</span> <span class='hs-varid'>putDocLn</span><span class='hs-layout'>,</span> <span class='hs-varid'>renderString</span><span class='hs-layout'>,</span> <span class='hs-varid'>vcat</span><span class='hs-layout'>,</span> <span class='hs-varid'>text</span> <span class='hs-layout'>)</span>
<a name="line-39"></a>
<a name="line-40"></a><a name="whatsnewDescription"></a><span class='hs-definition'>whatsnewDescription</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span>
<a name="line-41"></a><span class='hs-definition'>whatsnewDescription</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"List unrecorded changes in the working tree."</span>
<a name="line-42"></a>
<a name="line-43"></a><a name="whatsnewHelp"></a><span class='hs-definition'>whatsnewHelp</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span>
<a name="line-44"></a><span class='hs-definition'>whatsnewHelp</span> <span class='hs-keyglyph'>=</span>
<a name="line-45"></a> <span class='hs-str'>"The `darcs whatsnew' command lists unrecorded changes to the working\n"</span> <span class='hs-varop'>++</span>
<a name="line-46"></a> <span class='hs-str'>"tree. If you specify a set of files and directories, only unrecorded\n"</span> <span class='hs-varop'>++</span>
<a name="line-47"></a> <span class='hs-str'>"changes to those files and directories are listed.\n"</span> <span class='hs-varop'>++</span>
<a name="line-48"></a> <span class='hs-str'>"\n"</span> <span class='hs-varop'>++</span>
<a name="line-49"></a> <span class='hs-str'>"With the --summary option, the changes are condensed to one line per\n"</span> <span class='hs-varop'>++</span>
<a name="line-50"></a> <span class='hs-str'>"file, with mnemonics to indicate the nature and extent of the change.\n"</span> <span class='hs-varop'>++</span>
<a name="line-51"></a> <span class='hs-str'>"The --look-for-adds option causes candidates for `darcs add' to be\n"</span> <span class='hs-varop'>++</span>
<a name="line-52"></a> <span class='hs-str'>"included in the summary output. Summary mnemonics are as follows:\n"</span> <span class='hs-varop'>++</span>
<a name="line-53"></a> <span class='hs-str'>"\n"</span> <span class='hs-varop'>++</span>
<a name="line-54"></a> <span class='hs-str'>" `A f' and `A d/' respectively mean an added file or directory.\n"</span> <span class='hs-varop'>++</span>
<a name="line-55"></a> <span class='hs-str'>" `R f' and `R d/' respectively mean a removed file or directory.\n"</span> <span class='hs-varop'>++</span>
<a name="line-56"></a> <span class='hs-str'>" `M f -N +M rP' means a modified file, with N lines deleted, M\n"</span> <span class='hs-varop'>++</span>
<a name="line-57"></a> <span class='hs-str'>" lines added, and P lexical replacements.\n"</span> <span class='hs-varop'>++</span>
<a name="line-58"></a> <span class='hs-str'>" `f -> g' means a moved file or directory.\n"</span> <span class='hs-varop'>++</span>
<a name="line-59"></a> <span class='hs-str'>"\n"</span> <span class='hs-varop'>++</span>
<a name="line-60"></a> <span class='hs-str'>" An exclamation mark (!) as in `R! foo.c', means the hunk is known to\n"</span> <span class='hs-varop'>++</span>
<a name="line-61"></a> <span class='hs-str'>" conflict with a hunk in another patch. The phrase `duplicated'\n"</span> <span class='hs-varop'>++</span>
<a name="line-62"></a> <span class='hs-str'>" means the hunk is known to be identical to a hunk in another patch.\n"</span> <span class='hs-varop'>++</span>
<a name="line-63"></a> <span class='hs-str'>"\n"</span> <span class='hs-varop'>++</span>
<a name="line-64"></a> <span class='hs-str'>"By default, `darcs whatsnew' uses Darcs' internal format for changes.\n"</span> <span class='hs-varop'>++</span>
<a name="line-65"></a> <span class='hs-str'>"To see some context (unchanged lines) around each change, use the\n"</span> <span class='hs-varop'>++</span>
<a name="line-66"></a> <span class='hs-str'>"--unified option. To view changes in conventional `diff' format, use\n"</span> <span class='hs-varop'>++</span>
<a name="line-67"></a> <span class='hs-str'>"the `darcs diff' command; but note that `darcs whatsnew' is faster.\n"</span> <span class='hs-varop'>++</span>
<a name="line-68"></a> <span class='hs-str'>"\n"</span> <span class='hs-varop'>++</span>
<a name="line-69"></a> <span class='hs-str'>"This command exits unsuccessfully (returns a non-zero exit status) if\n"</span> <span class='hs-varop'>++</span>
<a name="line-70"></a> <span class='hs-str'>"there are no unrecorded changes.\n"</span>
<a name="line-71"></a>
<a name="line-72"></a><a name="whatsnew"></a><span class='hs-definition'>whatsnew</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DarcsCommand</span>
<a name="line-73"></a><span class='hs-definition'>whatsnew</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>DarcsCommand</span> <span class='hs-layout'>{</span><span class='hs-varid'>commandName</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"whatsnew"</span><span class='hs-layout'>,</span>
<a name="line-74"></a> <span class='hs-varid'>commandHelp</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>whatsnewHelp</span><span class='hs-layout'>,</span>
<a name="line-75"></a> <span class='hs-varid'>commandDescription</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>whatsnewDescription</span><span class='hs-layout'>,</span>
<a name="line-76"></a> <span class='hs-varid'>commandExtraArgs</span> <span class='hs-keyglyph'>=</span> <span class='hs-comment'>-</span><span class='hs-num'>1</span><span class='hs-layout'>,</span>
<a name="line-77"></a> <span class='hs-varid'>commandExtraArgHelp</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-str'>"[FILE or DIRECTORY]..."</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span>
<a name="line-78"></a> <span class='hs-varid'>commandCommand</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>whatsnewCmd</span><span class='hs-layout'>,</span>
<a name="line-79"></a> <span class='hs-varid'>commandPrereq</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>amInRepository</span><span class='hs-layout'>,</span>
<a name="line-80"></a> <span class='hs-varid'>commandGetArgPossibilities</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>listRegisteredFiles</span><span class='hs-layout'>,</span>
<a name="line-81"></a> <span class='hs-varid'>commandArgdefaults</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>nodefaults</span><span class='hs-layout'>,</span>
<a name="line-82"></a> <span class='hs-varid'>commandAdvancedOptions</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>ignoretimes</span><span class='hs-layout'>,</span> <span class='hs-varid'>noskipBoring</span><span class='hs-layout'>,</span> <span class='hs-varid'>noCache</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span>
<a name="line-83"></a> <span class='hs-varid'>commandBasicOptions</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>summary</span><span class='hs-layout'>,</span> <span class='hs-varid'>unified</span><span class='hs-layout'>,</span>
<a name="line-84"></a> <span class='hs-varid'>lookforadds</span><span class='hs-layout'>,</span>
<a name="line-85"></a> <span class='hs-varid'>workingRepoDir</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>}</span>
<a name="line-86"></a>
<a name="line-87"></a><a name="announceFiles"></a><span class='hs-definition'>announceFiles</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>RepoPatch</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Repository</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>r</span> <span class='hs-varid'>u</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>SubPath</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-88"></a><span class='hs-definition'>announceFiles</span> <span class='hs-varid'>repo</span> <span class='hs-varid'>files</span> <span class='hs-keyglyph'>=</span>
<a name="line-89"></a> <span class='hs-varid'>when</span> <span class='hs-layout'>(</span><span class='hs-varid'>areFileArgs</span> <span class='hs-varid'>files</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span>
<a name="line-90"></a> <span class='hs-varid'>pristine</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>readRecordedAndPending</span> <span class='hs-varid'>repo</span>
<a name="line-91"></a> <span class='hs-comment'>-- TODO this is slightly inefficient, since we should really somehow</span>
<a name="line-92"></a> <span class='hs-comment'>-- extract the unrecorded state as a side-effect of unrecordedChanges</span>
<a name="line-93"></a> <span class='hs-varid'>index</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>readUnrecorded</span> <span class='hs-varid'>repo</span>
<a name="line-94"></a> <span class='hs-varid'>nonboring</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>restrictBoring</span> <span class='hs-varid'>index</span>
<a name="line-95"></a> <span class='hs-varid'>working</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>nonboring</span> <span class='hs-varop'>`fmap`</span> <span class='hs-varid'>readPlainTree</span> <span class='hs-str'>"."</span>
<a name="line-96"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>paths</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>fn2fp</span> <span class='hs-varop'>.</span> <span class='hs-varid'>sp2fn</span><span class='hs-layout'>)</span> <span class='hs-varid'>files</span>
<a name="line-97"></a> <span class='hs-varid'>check</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>virtualTreeIO</span> <span class='hs-layout'>(</span><span class='hs-varid'>mapM</span> <span class='hs-varid'>exists</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-varid'>floatPath</span> <span class='hs-varid'>paths</span><span class='hs-layout'>)</span>
<a name="line-98"></a> <span class='hs-layout'>(</span><span class='hs-varid'>in_working</span><span class='hs-layout'>,</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>check</span> <span class='hs-varid'>working</span>
<a name="line-99"></a> <span class='hs-layout'>(</span><span class='hs-varid'>in_pending</span><span class='hs-layout'>,</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>check</span> <span class='hs-varid'>pristine</span>
<a name="line-100"></a> <span class='hs-varid'>mapM_</span> <span class='hs-varid'>maybe_warn</span> <span class='hs-varop'>$</span> <span class='hs-varid'>zip3</span> <span class='hs-varid'>paths</span> <span class='hs-varid'>in_working</span> <span class='hs-varid'>in_pending</span>
<a name="line-101"></a> <span class='hs-varid'>putStrLn</span> <span class='hs-varop'>$</span> <span class='hs-str'>"What's new in "</span><span class='hs-varop'>++</span><span class='hs-varid'>unwords</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>show</span> <span class='hs-varid'>files</span><span class='hs-layout'>)</span><span class='hs-varop'>++</span><span class='hs-str'>":\n"</span>
<a name="line-102"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>maybe_warn</span> <span class='hs-layout'>(</span><span class='hs-varid'>file</span><span class='hs-layout'>,</span> <span class='hs-conid'>False</span><span class='hs-layout'>,</span> <span class='hs-conid'>False</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-103"></a> <span class='hs-varid'>putStrLn</span> <span class='hs-varop'>$</span> <span class='hs-str'>"WARNING: File '"</span><span class='hs-varop'>++</span><span class='hs-varid'>file</span><span class='hs-varop'>++</span><span class='hs-str'>"' does not exist!"</span>
<a name="line-104"></a> <span class='hs-varid'>maybe_warn</span> <span class='hs-layout'>(</span><span class='hs-varid'>file</span><span class='hs-layout'>,</span> <span class='hs-conid'>True</span><span class='hs-layout'>,</span> <span class='hs-conid'>False</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-105"></a> <span class='hs-varid'>putStrLn</span> <span class='hs-varop'>$</span> <span class='hs-str'>"WARNING: File '"</span> <span class='hs-varop'>++</span> <span class='hs-varid'>file</span> <span class='hs-varop'>++</span> <span class='hs-str'>"' not in repository!"</span>
<a name="line-106"></a> <span class='hs-varid'>maybe_warn</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-107"></a>
<a name="line-108"></a><a name="whatsnewCmd"></a><span class='hs-definition'>whatsnewCmd</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>DarcsFlag</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>String</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-109"></a><span class='hs-definition'>whatsnewCmd</span> <span class='hs-varid'>opts'</span> <span class='hs-varid'>args</span>
<a name="line-110"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>LookForAdds</span> <span class='hs-varop'>`elem`</span> <span class='hs-varid'>opts'</span> <span class='hs-varop'>&&</span> <span class='hs-conid'>NoSummary</span> <span class='hs-varop'>`notElem`</span> <span class='hs-varid'>opts'</span> <span class='hs-keyglyph'>=</span>
<a name="line-111"></a> <span class='hs-comment'>-- add Summary to the opts since 'darcs whatsnew --look-for-adds'</span>
<a name="line-112"></a> <span class='hs-comment'>-- implies summary</span>
<a name="line-113"></a> <span class='hs-varid'>withRepository</span> <span class='hs-layout'>(</span><span class='hs-conid'>Summary</span><span class='hs-conop'>:</span><span class='hs-varid'>opts'</span><span class='hs-layout'>)</span> <span class='hs-varop'>$-</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>repository</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-114"></a> <span class='hs-varid'>files</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>fixSubPaths</span> <span class='hs-varid'>opts'</span> <span class='hs-varid'>args</span>
<a name="line-115"></a> <span class='hs-varid'>announceFiles</span> <span class='hs-varid'>repository</span> <span class='hs-varid'>files</span>
<a name="line-116"></a> <span class='hs-varid'>all_changes</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>unrecordedChanges</span> <span class='hs-varid'>opts'</span> <span class='hs-varid'>repository</span> <span class='hs-varid'>files</span>
<a name="line-117"></a> <span class='hs-varid'>chold</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>unrecordedChanges</span> <span class='hs-layout'>(</span><span class='hs-varid'>opts'</span> <span class='hs-varop'>\\</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>LookForAdds</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-varid'>repository</span> <span class='hs-varid'>files</span>
<a name="line-118"></a> <span class='hs-varid'>pristine</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>readRecorded</span> <span class='hs-varid'>repository</span>
<a name="line-119"></a> <span class='hs-varid'>ftf</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>filetypeFunction</span>
<a name="line-120"></a> <span class='hs-varid'>cho_adds</span> <span class='hs-conop'>:></span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-varid'>partitionRL</span> <span class='hs-varid'>primIsHunk</span> <span class='hs-varop'>$</span> <span class='hs-varid'>reverseFL</span> <span class='hs-varid'>chold</span>
<a name="line-121"></a> <span class='hs-varid'>cha</span> <span class='hs-conop'>:></span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-varid'>partitionRL</span> <span class='hs-varid'>primIsHunk</span> <span class='hs-varop'>$</span> <span class='hs-varid'>reverseFL</span> <span class='hs-varid'>all_changes</span>
<a name="line-122"></a>
<a name="line-123"></a> <span class='hs-varid'>cho_adds_t</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>applyToTree</span> <span class='hs-layout'>(</span><span class='hs-varid'>reverseRL</span> <span class='hs-varid'>cho_adds</span><span class='hs-layout'>)</span> <span class='hs-varid'>pristine</span>
<a name="line-124"></a> <span class='hs-varid'>cha_t</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>applyToTree</span> <span class='hs-layout'>(</span><span class='hs-varid'>reverseRL</span> <span class='hs-varid'>cha</span><span class='hs-layout'>)</span> <span class='hs-varid'>pristine</span>
<a name="line-125"></a> <span class='hs-varid'>chn</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>treeDiff</span> <span class='hs-varid'>ftf</span> <span class='hs-varid'>cho_adds_t</span> <span class='hs-varid'>cha_t</span>
<a name="line-126"></a>
<a name="line-127"></a> <span class='hs-varid'>exitOnNoChanges</span> <span class='hs-layout'>(</span><span class='hs-varid'>chn</span><span class='hs-layout'>,</span> <span class='hs-varid'>chold</span><span class='hs-layout'>)</span>
<a name="line-128"></a> <span class='hs-varid'>putDocLn</span> <span class='hs-varop'>$</span> <span class='hs-varid'>plainSummary</span> <span class='hs-varid'>chold</span>
<a name="line-129"></a> <span class='hs-varid'>printSummary</span> <span class='hs-varid'>chn</span>
<a name="line-130"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>lower_as</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>vcat</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>text</span> <span class='hs-varop'>.</span> <span class='hs-varid'>l_as</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>lines</span> <span class='hs-varid'>x</span>
<a name="line-131"></a> <span class='hs-varid'>l_as</span> <span class='hs-layout'>(</span><span class='hs-chr'>'A'</span><span class='hs-conop'>:</span><span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-chr'>'a'</span><span class='hs-conop'>:</span><span class='hs-varid'>x</span>
<a name="line-132"></a> <span class='hs-varid'>l_as</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x</span>
<a name="line-133"></a> <span class='hs-varid'>exitOnNoChanges</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>FL</span> <span class='hs-conid'>Prim</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>FL</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>u</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-134"></a> <span class='hs-varid'>exitOnNoChanges</span> <span class='hs-layout'>(</span><span class='hs-conid'>NilFL</span><span class='hs-layout'>,</span> <span class='hs-conid'>NilFL</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>putStrLn</span> <span class='hs-str'>"No changes!"</span>
<a name="line-135"></a> <span class='hs-varid'>exitWith</span> <span class='hs-varop'>$</span> <span class='hs-conid'>ExitFailure</span> <span class='hs-num'>1</span>
<a name="line-136"></a> <span class='hs-varid'>exitOnNoChanges</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-137"></a> <span class='hs-varid'>printSummary</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FL</span> <span class='hs-conid'>Prim</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-138"></a> <span class='hs-varid'>printSummary</span> <span class='hs-conid'>NilFL</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-139"></a> <span class='hs-varid'>printSummary</span> <span class='hs-varid'>new</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>putDocLn</span> <span class='hs-varop'>$</span> <span class='hs-varid'>lower_as</span> <span class='hs-varop'>$</span> <span class='hs-varid'>renderString</span> <span class='hs-varop'>$</span> <span class='hs-varid'>plainSummary</span> <span class='hs-varid'>new</span>
<a name="line-140"></a>
<a name="line-141"></a><span class='hs-definition'>whatsnewCmd</span> <span class='hs-varid'>opts</span> <span class='hs-varid'>args</span>
<a name="line-142"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span>
<a name="line-143"></a> <span class='hs-varid'>withRepository</span> <span class='hs-varid'>opts</span> <span class='hs-varop'>$-</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>repository</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-144"></a> <span class='hs-varid'>files</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>sort</span> <span class='hs-varop'>`fmap`</span> <span class='hs-varid'>fixSubPaths</span> <span class='hs-varid'>opts</span> <span class='hs-varid'>args</span>
<a name="line-145"></a> <span class='hs-varid'>announceFiles</span> <span class='hs-varid'>repository</span> <span class='hs-varid'>files</span>
<a name="line-146"></a> <span class='hs-varid'>changes</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>unrecordedChanges</span> <span class='hs-varid'>opts</span> <span class='hs-varid'>repository</span> <span class='hs-varid'>files</span>
<a name="line-147"></a> <span class='hs-varid'>when</span> <span class='hs-layout'>(</span><span class='hs-varid'>nullFL</span> <span class='hs-varid'>changes</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>putStrLn</span> <span class='hs-str'>"No changes!"</span> <span class='hs-varop'>>></span> <span class='hs-layout'>(</span><span class='hs-varid'>exitWith</span> <span class='hs-varop'>$</span> <span class='hs-conid'>ExitFailure</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span>
<a name="line-148"></a> <span class='hs-varid'>printSummary</span> <span class='hs-varid'>repository</span> <span class='hs-varop'>$</span> <span class='hs-varid'>mapFL_FL</span> <span class='hs-varid'>prim2real</span> <span class='hs-varid'>changes</span>
<a name="line-149"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>printSummary</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RepoPatch</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Repository</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>r</span> <span class='hs-varid'>u</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>FL</span> <span class='hs-conid'>RealPatch</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>r</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-150"></a> <span class='hs-varid'>printSummary</span> <span class='hs-keyword'>_</span> <span class='hs-conid'>NilFL</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>putStrLn</span> <span class='hs-str'>"No changes!"</span>
<a name="line-151"></a> <span class='hs-varid'>exitWith</span> <span class='hs-varop'>$</span> <span class='hs-conid'>ExitFailure</span> <span class='hs-num'>1</span>
<a name="line-152"></a> <span class='hs-varid'>printSummary</span> <span class='hs-varid'>r</span> <span class='hs-varid'>ch</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Summary</span> <span class='hs-varop'>`elem`</span> <span class='hs-varid'>opts</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>putDocLn</span> <span class='hs-varop'>$</span> <span class='hs-varid'>plainSummary</span> <span class='hs-varid'>ch</span>
<a name="line-153"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isUnified</span> <span class='hs-varid'>opts</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>pristine</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>readRecorded</span> <span class='hs-varid'>r</span>
<a name="line-154"></a> <span class='hs-varid'>contextualPrintPatch</span> <span class='hs-varid'>pristine</span> <span class='hs-varid'>ch</span>
<a name="line-155"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>printPatch</span> <span class='hs-varid'>ch</span>
</pre>\end{code}
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