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<th class=docs><h1>cat-file.c</h1></th>
<th class=code></th>
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<td class=code>
<div class='highlight'><pre><span></span><span class="cm">/*</span>
<span class="cm"> * libgit2 "cat-file" example - shows how to print data from the ODB</span>
<span class="cm"> *</span>
<span class="cm"> * Written by the libgit2 contributors</span>
<span class="cm"> *</span>
<span class="cm"> * To the extent possible under law, the author(s) have dedicated all copyright</span>
<span class="cm"> * and related and neighboring rights to this software to the public domain</span>
<span class="cm"> * worldwide. This software is distributed without any warranty.</span>
<span class="cm"> *</span>
<span class="cm"> * You should have received a copy of the CC0 Public Domain Dedication along</span>
<span class="cm"> * with this software. If not, see</span>
<span class="cm"> * <http://creativecommons.org/publicdomain/zero/1.0/>.</span>
<span class="cm"> */</span>
<span class="cp">#include</span> <span class="cpf">"common.h"</span><span class="cp"></span>
<span class="k">static</span> <span class="kt">void</span> <span class="nf">print_signature</span><span class="p">(</span><span class="k">const</span> <span class="kt">char</span> <span class="o">*</span><span class="n">header</span><span class="p">,</span> <span class="k">const</span> <span class="n">git_signature</span> <span class="o">*</span><span class="n">sig</span><span class="p">)</span>
<span class="p">{</span>
<span class="kt">char</span> <span class="n">sign</span><span class="p">;</span>
<span class="kt">int</span> <span class="n">offset</span><span class="p">,</span> <span class="n">hours</span><span class="p">,</span> <span class="n">minutes</span><span class="p">;</span>
<span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">sig</span><span class="p">)</span>
<span class="k">return</span><span class="p">;</span>
<span class="n">offset</span> <span class="o">=</span> <span class="n">sig</span><span class="o">-></span><span class="n">when</span><span class="p">.</span><span class="n">offset</span><span class="p">;</span>
<span class="k">if</span> <span class="p">(</span><span class="n">offset</span> <span class="o"><</span> <span class="mi">0</span><span class="p">)</span> <span class="p">{</span>
<span class="n">sign</span> <span class="o">=</span> <span class="sc">'-'</span><span class="p">;</span>
<span class="n">offset</span> <span class="o">=</span> <span class="o">-</span><span class="n">offset</span><span class="p">;</span>
<span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
<span class="n">sign</span> <span class="o">=</span> <span class="sc">'+'</span><span class="p">;</span>
<span class="p">}</span>
<span class="n">hours</span> <span class="o">=</span> <span class="n">offset</span> <span class="o">/</span> <span class="mi">60</span><span class="p">;</span>
<span class="n">minutes</span> <span class="o">=</span> <span class="n">offset</span> <span class="o">%</span> <span class="mi">60</span><span class="p">;</span>
<span class="n">printf</span><span class="p">(</span><span class="s">"%s %s <%s> %ld %c%02d%02d</span><span class="se">\n</span><span class="s">"</span><span class="p">,</span>
<span class="n">header</span><span class="p">,</span> <span class="n">sig</span><span class="o">-></span><span class="n">name</span><span class="p">,</span> <span class="n">sig</span><span class="o">-></span><span class="n">email</span><span class="p">,</span> <span class="p">(</span><span class="kt">long</span><span class="p">)</span><span class="n">sig</span><span class="o">-></span><span class="n">when</span><span class="p">.</span><span class="n">time</span><span class="p">,</span>
<span class="n">sign</span><span class="p">,</span> <span class="n">hours</span><span class="p">,</span> <span class="n">minutes</span><span class="p">);</span>
<span class="p">}</span></pre></div>
</td>
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<tr id='section-2'>
<td class=docs>
<div class="pilwrap">
<a class="pilcrow" href="#section-2">¶</a>
</div>
<p>Printing out a blob is simple, get the contents and print</p>
</td>
<td class=code>
<div class='highlight'><pre><span class="k">static</span> <span class="kt">void</span> <span class="nf">show_blob</span><span class="p">(</span><span class="k">const</span> <span class="n">git_blob</span> <span class="o">*</span><span class="n">blob</span><span class="p">)</span>
<span class="p">{</span>
<span class="cm">/* ? Does this need crlf filtering? */</span>
<span class="n">fwrite</span><span class="p">(</span><span class="n"><a name="git_blob_rawcontent-1" class="fnlink" href="../../#HEAD/group/blob/git_blob_rawcontent">git_blob_rawcontent</a></span><span class="p">(</span><span class="n">blob</span><span class="p">),</span> <span class="p">(</span><span class="kt">size_t</span><span class="p">)</span><span class="n"><a name="git_blob_rawsize-2" class="fnlink" href="../../#HEAD/group/blob/git_blob_rawsize">git_blob_rawsize</a></span><span class="p">(</span><span class="n">blob</span><span class="p">),</span> <span class="mi">1</span><span class="p">,</span> <span class="n">stdout</span><span class="p">);</span>
<span class="p">}</span></pre></div>
</td>
</tr>
<tr id='section-3'>
<td class=docs>
<div class="pilwrap">
<a class="pilcrow" href="#section-3">¶</a>
</div>
<p>Show each entry with its type, id and attributes</p>
</td>
<td class=code>
<div class='highlight'><pre><span class="k">static</span> <span class="kt">void</span> <span class="nf">show_tree</span><span class="p">(</span><span class="k">const</span> <span class="n">git_tree</span> <span class="o">*</span><span class="n">tree</span><span class="p">)</span>
<span class="p">{</span>
<span class="kt">size_t</span> <span class="n">i</span><span class="p">,</span> <span class="n">max_i</span> <span class="o">=</span> <span class="p">(</span><span class="kt">int</span><span class="p">)</span><span class="n"><a name="git_tree_entrycount-37" class="fnlink" href="../../#HEAD/group/tree/git_tree_entrycount">git_tree_entrycount</a></span><span class="p">(</span><span class="n">tree</span><span class="p">);</span>
<span class="kt">char</span> <span class="n">oidstr</span><span class="p">[</span><span class="n">GIT_OID_HEXSZ</span> <span class="o">+</span> <span class="mi">1</span><span class="p">];</span>
<span class="k">const</span> <span class="n">git_tree_entry</span> <span class="o">*</span><span class="n">te</span><span class="p">;</span>
<span class="k">for</span> <span class="p">(</span><span class="n">i</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span> <span class="n">i</span> <span class="o"><</span> <span class="n">max_i</span><span class="p">;</span> <span class="o">++</span><span class="n">i</span><span class="p">)</span> <span class="p">{</span>
<span class="n">te</span> <span class="o">=</span> <span class="n"><a name="git_tree_entry_byindex-38" class="fnlink" href="../../#HEAD/group/tree/git_tree_entry_byindex">git_tree_entry_byindex</a></span><span class="p">(</span><span class="n">tree</span><span class="p">,</span> <span class="n">i</span><span class="p">);</span>
<span class="n"><a name="git_oid_tostr-24" class="fnlink" href="../../#HEAD/group/oid/git_oid_tostr">git_oid_tostr</a></span><span class="p">(</span><span class="n">oidstr</span><span class="p">,</span> <span class="k">sizeof</span><span class="p">(</span><span class="n">oidstr</span><span class="p">),</span> <span class="n"><a name="git_tree_entry_id-40" class="fnlink" href="../../#HEAD/group/tree/git_tree_entry_id">git_tree_entry_id</a></span><span class="p">(</span><span class="n">te</span><span class="p">));</span>
<span class="n">printf</span><span class="p">(</span><span class="s">"%06o %s %s</span><span class="se">\t</span><span class="s">%s</span><span class="se">\n</span><span class="s">"</span><span class="p">,</span>
<span class="n"><a name="git_tree_entry_filemode-42" class="fnlink" href="../../#HEAD/group/tree/git_tree_entry_filemode">git_tree_entry_filemode</a></span><span class="p">(</span><span class="n">te</span><span class="p">),</span>
<span class="n"><a name="git_object_type2string-16" class="fnlink" href="../../#HEAD/group/object/git_object_type2string">git_object_type2string</a></span><span class="p">(</span><span class="n"><a name="git_tree_entry_type-41" class="fnlink" href="../../#HEAD/group/tree/git_tree_entry_type">git_tree_entry_type</a></span><span class="p">(</span><span class="n">te</span><span class="p">)),</span>
<span class="n">oidstr</span><span class="p">,</span> <span class="n"><a name="git_tree_entry_name-39" class="fnlink" href="../../#HEAD/group/tree/git_tree_entry_name">git_tree_entry_name</a></span><span class="p">(</span><span class="n">te</span><span class="p">));</span>
<span class="p">}</span>
<span class="p">}</span></pre></div>
</td>
</tr>
<tr id='section-4'>
<td class=docs>
<div class="pilwrap">
<a class="pilcrow" href="#section-4">¶</a>
</div>
<p>Commits and tags have a few interesting fields in their header.</p>
</td>
<td class=code>
<div class='highlight'><pre><span class="k">static</span> <span class="kt">void</span> <span class="nf">show_commit</span><span class="p">(</span><span class="k">const</span> <span class="n">git_commit</span> <span class="o">*</span><span class="n">commit</span><span class="p">)</span>
<span class="p">{</span>
<span class="kt">unsigned</span> <span class="kt">int</span> <span class="n">i</span><span class="p">,</span> <span class="n">max_i</span><span class="p">;</span>
<span class="kt">char</span> <span class="n">oidstr</span><span class="p">[</span><span class="n">GIT_OID_HEXSZ</span> <span class="o">+</span> <span class="mi">1</span><span class="p">];</span>
<span class="n"><a name="git_oid_tostr-25" class="fnlink" href="../../#HEAD/group/oid/git_oid_tostr">git_oid_tostr</a></span><span class="p">(</span><span class="n">oidstr</span><span class="p">,</span> <span class="k">sizeof</span><span class="p">(</span><span class="n">oidstr</span><span class="p">),</span> <span class="n"><a name="git_commit_tree_id-7" class="fnlink" href="../../#HEAD/group/commit/git_commit_tree_id">git_commit_tree_id</a></span><span class="p">(</span><span class="n">commit</span><span class="p">));</span>
<span class="n">printf</span><span class="p">(</span><span class="s">"tree %s</span><span class="se">\n</span><span class="s">"</span><span class="p">,</span> <span class="n">oidstr</span><span class="p">);</span>
<span class="n">max_i</span> <span class="o">=</span> <span class="p">(</span><span class="kt">unsigned</span> <span class="kt">int</span><span class="p">)</span><span class="n"><a name="git_commit_parentcount-8" class="fnlink" href="../../#HEAD/group/commit/git_commit_parentcount">git_commit_parentcount</a></span><span class="p">(</span><span class="n">commit</span><span class="p">);</span>
<span class="k">for</span> <span class="p">(</span><span class="n">i</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span> <span class="n">i</span> <span class="o"><</span> <span class="n">max_i</span><span class="p">;</span> <span class="o">++</span><span class="n">i</span><span class="p">)</span> <span class="p">{</span>
<span class="n"><a name="git_oid_tostr-26" class="fnlink" href="../../#HEAD/group/oid/git_oid_tostr">git_oid_tostr</a></span><span class="p">(</span><span class="n">oidstr</span><span class="p">,</span> <span class="k">sizeof</span><span class="p">(</span><span class="n">oidstr</span><span class="p">),</span> <span class="n"><a name="git_commit_parent_id-9" class="fnlink" href="../../#HEAD/group/commit/git_commit_parent_id">git_commit_parent_id</a></span><span class="p">(</span><span class="n">commit</span><span class="p">,</span> <span class="n">i</span><span class="p">));</span>
<span class="n">printf</span><span class="p">(</span><span class="s">"parent %s</span><span class="se">\n</span><span class="s">"</span><span class="p">,</span> <span class="n">oidstr</span><span class="p">);</span>
<span class="p">}</span>
<span class="n">print_signature</span><span class="p">(</span><span class="s">"author"</span><span class="p">,</span> <span class="n"><a name="git_commit_author-6" class="fnlink" href="../../#HEAD/group/commit/git_commit_author">git_commit_author</a></span><span class="p">(</span><span class="n">commit</span><span class="p">));</span>
<span class="n">print_signature</span><span class="p">(</span><span class="s">"committer"</span><span class="p">,</span> <span class="n"><a name="git_commit_committer-5" class="fnlink" href="../../#HEAD/group/commit/git_commit_committer">git_commit_committer</a></span><span class="p">(</span><span class="n">commit</span><span class="p">));</span>
<span class="k">if</span> <span class="p">(</span><span class="n"><a name="git_commit_message-3" class="fnlink" href="../../#HEAD/group/commit/git_commit_message">git_commit_message</a></span><span class="p">(</span><span class="n">commit</span><span class="p">))</span>
<span class="n">printf</span><span class="p">(</span><span class="s">"</span><span class="se">\n</span><span class="s">%s</span><span class="se">\n</span><span class="s">"</span><span class="p">,</span> <span class="n"><a name="git_commit_message-4" class="fnlink" href="../../#HEAD/group/commit/git_commit_message">git_commit_message</a></span><span class="p">(</span><span class="n">commit</span><span class="p">));</span>
<span class="p">}</span>
<span class="k">static</span> <span class="kt">void</span> <span class="nf">show_tag</span><span class="p">(</span><span class="k">const</span> <span class="n">git_tag</span> <span class="o">*</span><span class="n">tag</span><span class="p">)</span>
<span class="p">{</span>
<span class="kt">char</span> <span class="n">oidstr</span><span class="p">[</span><span class="n">GIT_OID_HEXSZ</span> <span class="o">+</span> <span class="mi">1</span><span class="p">];</span>
<span class="n"><a name="git_oid_tostr-27" class="fnlink" href="../../#HEAD/group/oid/git_oid_tostr">git_oid_tostr</a></span><span class="p">(</span><span class="n">oidstr</span><span class="p">,</span> <span class="k">sizeof</span><span class="p">(</span><span class="n">oidstr</span><span class="p">),</span> <span class="n"><a name="git_tag_target_id-31" class="fnlink" href="../../#HEAD/group/tag/git_tag_target_id">git_tag_target_id</a></span><span class="p">(</span><span class="n">tag</span><span class="p">));;</span>
<span class="n">printf</span><span class="p">(</span><span class="s">"object %s</span><span class="se">\n</span><span class="s">"</span><span class="p">,</span> <span class="n">oidstr</span><span class="p">);</span>
<span class="n">printf</span><span class="p">(</span><span class="s">"type %s</span><span class="se">\n</span><span class="s">"</span><span class="p">,</span> <span class="n"><a name="git_object_type2string-17" class="fnlink" href="../../#HEAD/group/object/git_object_type2string">git_object_type2string</a></span><span class="p">(</span><span class="n"><a name="git_tag_target_type-32" class="fnlink" href="../../#HEAD/group/tag/git_tag_target_type">git_tag_target_type</a></span><span class="p">(</span><span class="n">tag</span><span class="p">)));</span>
<span class="n">printf</span><span class="p">(</span><span class="s">"tag %s</span><span class="se">\n</span><span class="s">"</span><span class="p">,</span> <span class="n"><a name="git_tag_name-33" class="fnlink" href="../../#HEAD/group/tag/git_tag_name">git_tag_name</a></span><span class="p">(</span><span class="n">tag</span><span class="p">));</span>
<span class="n">print_signature</span><span class="p">(</span><span class="s">"tagger"</span><span class="p">,</span> <span class="n"><a name="git_tag_tagger-34" class="fnlink" href="../../#HEAD/group/tag/git_tag_tagger">git_tag_tagger</a></span><span class="p">(</span><span class="n">tag</span><span class="p">));</span>
<span class="k">if</span> <span class="p">(</span><span class="n"><a name="git_tag_message-35" class="fnlink" href="../../#HEAD/group/tag/git_tag_message">git_tag_message</a></span><span class="p">(</span><span class="n">tag</span><span class="p">))</span>
<span class="n">printf</span><span class="p">(</span><span class="s">"</span><span class="se">\n</span><span class="s">%s</span><span class="se">\n</span><span class="s">"</span><span class="p">,</span> <span class="n"><a name="git_tag_message-36" class="fnlink" href="../../#HEAD/group/tag/git_tag_message">git_tag_message</a></span><span class="p">(</span><span class="n">tag</span><span class="p">));</span>
<span class="p">}</span>
<span class="k">typedef</span> <span class="k">enum</span> <span class="p">{</span>
<span class="n">SHOW_TYPE</span> <span class="o">=</span> <span class="mi">1</span><span class="p">,</span>
<span class="n">SHOW_SIZE</span> <span class="o">=</span> <span class="mi">2</span><span class="p">,</span>
<span class="n">SHOW_NONE</span> <span class="o">=</span> <span class="mi">3</span><span class="p">,</span>
<span class="n">SHOW_PRETTY</span> <span class="o">=</span> <span class="mi">4</span>
<span class="p">}</span> <span class="n">catfile_mode</span><span class="p">;</span>
<span class="cm">/* Forward declarations for option-parsing helper */</span>
<span class="k">struct</span> <span class="n">catfile_options</span> <span class="p">{</span>
<span class="k">const</span> <span class="kt">char</span> <span class="o">*</span><span class="n">dir</span><span class="p">;</span>
<span class="k">const</span> <span class="kt">char</span> <span class="o">*</span><span class="n">rev</span><span class="p">;</span>
<span class="n">catfile_mode</span> <span class="n">action</span><span class="p">;</span>
<span class="kt">int</span> <span class="n">verbose</span><span class="p">;</span>
<span class="p">};</span>
<span class="k">static</span> <span class="kt">void</span> <span class="nf">parse_opts</span><span class="p">(</span><span class="k">struct</span> <span class="n">catfile_options</span> <span class="o">*</span><span class="n">o</span><span class="p">,</span> <span class="kt">int</span> <span class="n">argc</span><span class="p">,</span> <span class="kt">char</span> <span class="o">*</span><span class="n">argv</span><span class="p">[]);</span></pre></div>
</td>
</tr>
<tr id='section-5'>
<td class=docs>
<div class="pilwrap">
<a class="pilcrow" href="#section-5">¶</a>
</div>
<p>Entry point for this command</p>
</td>
<td class=code>
<div class='highlight'><pre><span class="kt">int</span> <span class="nf">lg2_cat_file</span><span class="p">(</span><span class="n">git_repository</span> <span class="o">*</span><span class="n">repo</span><span class="p">,</span> <span class="kt">int</span> <span class="n">argc</span><span class="p">,</span> <span class="kt">char</span> <span class="o">*</span><span class="n">argv</span><span class="p">[])</span>
<span class="p">{</span>
<span class="k">struct</span> <span class="n">catfile_options</span> <span class="n">o</span> <span class="o">=</span> <span class="p">{</span> <span class="s">"."</span><span class="p">,</span> <span class="nb">NULL</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">0</span> <span class="p">};</span>
<span class="n">git_object</span> <span class="o">*</span><span class="n">obj</span> <span class="o">=</span> <span class="nb">NULL</span><span class="p">;</span>
<span class="kt">char</span> <span class="n">oidstr</span><span class="p">[</span><span class="n">GIT_OID_HEXSZ</span> <span class="o">+</span> <span class="mi">1</span><span class="p">];</span>
<span class="n">parse_opts</span><span class="p">(</span><span class="o">&</span><span class="n">o</span><span class="p">,</span> <span class="n">argc</span><span class="p">,</span> <span class="n">argv</span><span class="p">);</span>
<span class="n">check_lg2</span><span class="p">(</span><span class="n"><a name="git_revparse_single-30" class="fnlink" href="../../#HEAD/group/revparse/git_revparse_single">git_revparse_single</a></span><span class="p">(</span><span class="o">&</span><span class="n">obj</span><span class="p">,</span> <span class="n">repo</span><span class="p">,</span> <span class="n">o</span><span class="p">.</span><span class="n">rev</span><span class="p">),</span>
<span class="s">"Could not resolve"</span><span class="p">,</span> <span class="n">o</span><span class="p">.</span><span class="n">rev</span><span class="p">);</span>
<span class="k">if</span> <span class="p">(</span><span class="n">o</span><span class="p">.</span><span class="n">verbose</span><span class="p">)</span> <span class="p">{</span>
<span class="kt">char</span> <span class="n">oidstr</span><span class="p">[</span><span class="n">GIT_OID_HEXSZ</span> <span class="o">+</span> <span class="mi">1</span><span class="p">];</span>
<span class="n"><a name="git_oid_tostr-28" class="fnlink" href="../../#HEAD/group/oid/git_oid_tostr">git_oid_tostr</a></span><span class="p">(</span><span class="n">oidstr</span><span class="p">,</span> <span class="k">sizeof</span><span class="p">(</span><span class="n">oidstr</span><span class="p">),</span> <span class="n"><a name="git_object_id-10" class="fnlink" href="../../#HEAD/group/object/git_object_id">git_object_id</a></span><span class="p">(</span><span class="n">obj</span><span class="p">));</span>
<span class="n">printf</span><span class="p">(</span><span class="s">"%s %s</span><span class="se">\n</span><span class="s">--</span><span class="se">\n</span><span class="s">"</span><span class="p">,</span>
<span class="n"><a name="git_object_type2string-18" class="fnlink" href="../../#HEAD/group/object/git_object_type2string">git_object_type2string</a></span><span class="p">(</span><span class="n"><a name="git_object_type-12" class="fnlink" href="../../#HEAD/group/object/git_object_type">git_object_type</a></span><span class="p">(</span><span class="n">obj</span><span class="p">)),</span> <span class="n">oidstr</span><span class="p">);</span>
<span class="p">}</span>
<span class="k">switch</span> <span class="p">(</span><span class="n">o</span><span class="p">.</span><span class="n">action</span><span class="p">)</span> <span class="p">{</span>
<span class="k">case</span> <span class="nl">SHOW_TYPE</span><span class="p">:</span>
<span class="n">printf</span><span class="p">(</span><span class="s">"%s</span><span class="se">\n</span><span class="s">"</span><span class="p">,</span> <span class="n"><a name="git_object_type2string-19" class="fnlink" href="../../#HEAD/group/object/git_object_type2string">git_object_type2string</a></span><span class="p">(</span><span class="n"><a name="git_object_type-13" class="fnlink" href="../../#HEAD/group/object/git_object_type">git_object_type</a></span><span class="p">(</span><span class="n">obj</span><span class="p">)));</span>
<span class="k">break</span><span class="p">;</span>
<span class="k">case</span> <span class="nl">SHOW_SIZE</span><span class="p">:</span> <span class="p">{</span>
<span class="n">git_odb</span> <span class="o">*</span><span class="n">odb</span><span class="p">;</span>
<span class="n">git_odb_object</span> <span class="o">*</span><span class="n">odbobj</span><span class="p">;</span>
<span class="n">check_lg2</span><span class="p">(</span><span class="n"><a name="git_repository_odb-29" class="fnlink" href="../../#HEAD/group/repository/git_repository_odb">git_repository_odb</a></span><span class="p">(</span><span class="o">&</span><span class="n">odb</span><span class="p">,</span> <span class="n">repo</span><span class="p">),</span> <span class="s">"Could not open ODB"</span><span class="p">,</span> <span class="nb">NULL</span><span class="p">);</span>
<span class="n">check_lg2</span><span class="p">(</span><span class="n"><a name="git_odb_read-21" class="fnlink" href="../../#HEAD/group/odb/git_odb_read">git_odb_read</a></span><span class="p">(</span><span class="o">&</span><span class="n">odbobj</span><span class="p">,</span> <span class="n">odb</span><span class="p">,</span> <span class="n"><a name="git_object_id-11" class="fnlink" href="../../#HEAD/group/object/git_object_id">git_object_id</a></span><span class="p">(</span><span class="n">obj</span><span class="p">)),</span>
<span class="s">"Could not find obj"</span><span class="p">,</span> <span class="nb">NULL</span><span class="p">);</span>
<span class="n">printf</span><span class="p">(</span><span class="s">"%ld</span><span class="se">\n</span><span class="s">"</span><span class="p">,</span> <span class="p">(</span><span class="kt">long</span><span class="p">)</span><span class="n"><a name="git_odb_object_size-23" class="fnlink" href="../../#HEAD/group/odb/git_odb_object_size">git_odb_object_size</a></span><span class="p">(</span><span class="n">odbobj</span><span class="p">));</span>
<span class="n"><a name="git_odb_object_free-22" class="fnlink" href="../../#HEAD/group/odb/git_odb_object_free">git_odb_object_free</a></span><span class="p">(</span><span class="n">odbobj</span><span class="p">);</span>
<span class="n"><a name="git_odb_free-20" class="fnlink" href="../../#HEAD/group/odb/git_odb_free">git_odb_free</a></span><span class="p">(</span><span class="n">odb</span><span class="p">);</span>
<span class="p">}</span>
<span class="k">break</span><span class="p">;</span>
<span class="k">case</span> <span class="nl">SHOW_NONE</span><span class="p">:</span>
<span class="cm">/* just want return result */</span>
<span class="k">break</span><span class="p">;</span>
<span class="k">case</span> <span class="nl">SHOW_PRETTY</span><span class="p">:</span>
<span class="k">switch</span> <span class="p">(</span><span class="n"><a name="git_object_type-14" class="fnlink" href="../../#HEAD/group/object/git_object_type">git_object_type</a></span><span class="p">(</span><span class="n">obj</span><span class="p">))</span> <span class="p">{</span>
<span class="k">case</span> <span class="nl">GIT_OBJECT_BLOB</span><span class="p">:</span>
<span class="n">show_blob</span><span class="p">((</span><span class="k">const</span> <span class="n">git_blob</span> <span class="o">*</span><span class="p">)</span><span class="n">obj</span><span class="p">);</span>
<span class="k">break</span><span class="p">;</span>
<span class="k">case</span> <span class="nl">GIT_OBJECT_COMMIT</span><span class="p">:</span>
<span class="n">show_commit</span><span class="p">((</span><span class="k">const</span> <span class="n">git_commit</span> <span class="o">*</span><span class="p">)</span><span class="n">obj</span><span class="p">);</span>
<span class="k">break</span><span class="p">;</span>
<span class="k">case</span> <span class="nl">GIT_OBJECT_TREE</span><span class="p">:</span>
<span class="n">show_tree</span><span class="p">((</span><span class="k">const</span> <span class="n">git_tree</span> <span class="o">*</span><span class="p">)</span><span class="n">obj</span><span class="p">);</span>
<span class="k">break</span><span class="p">;</span>
<span class="k">case</span> <span class="nl">GIT_OBJECT_TAG</span><span class="p">:</span>
<span class="n">show_tag</span><span class="p">((</span><span class="k">const</span> <span class="n">git_tag</span> <span class="o">*</span><span class="p">)</span><span class="n">obj</span><span class="p">);</span>
<span class="k">break</span><span class="p">;</span>
<span class="k">default</span><span class="o">:</span>
<span class="n">printf</span><span class="p">(</span><span class="s">"unknown %s</span><span class="se">\n</span><span class="s">"</span><span class="p">,</span> <span class="n">oidstr</span><span class="p">);</span>
<span class="k">break</span><span class="p">;</span>
<span class="p">}</span>
<span class="k">break</span><span class="p">;</span>
<span class="p">}</span>
<span class="n"><a name="git_object_free-15" class="fnlink" href="../../#HEAD/group/object/git_object_free">git_object_free</a></span><span class="p">(</span><span class="n">obj</span><span class="p">);</span>
<span class="k">return</span> <span class="mi">0</span><span class="p">;</span>
<span class="p">}</span></pre></div>
</td>
</tr>
<tr id='section-6'>
<td class=docs>
<div class="pilwrap">
<a class="pilcrow" href="#section-6">¶</a>
</div>
<p>Print out usage information</p>
</td>
<td class=code>
<div class='highlight'><pre><span class="k">static</span> <span class="kt">void</span> <span class="nf">usage</span><span class="p">(</span><span class="k">const</span> <span class="kt">char</span> <span class="o">*</span><span class="n">message</span><span class="p">,</span> <span class="k">const</span> <span class="kt">char</span> <span class="o">*</span><span class="n">arg</span><span class="p">)</span>
<span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="n">message</span> <span class="o">&&</span> <span class="n">arg</span><span class="p">)</span>
<span class="n">fprintf</span><span class="p">(</span><span class="n">stderr</span><span class="p">,</span> <span class="s">"%s: %s</span><span class="se">\n</span><span class="s">"</span><span class="p">,</span> <span class="n">message</span><span class="p">,</span> <span class="n">arg</span><span class="p">);</span>
<span class="k">else</span> <span class="k">if</span> <span class="p">(</span><span class="n">message</span><span class="p">)</span>
<span class="n">fprintf</span><span class="p">(</span><span class="n">stderr</span><span class="p">,</span> <span class="s">"%s</span><span class="se">\n</span><span class="s">"</span><span class="p">,</span> <span class="n">message</span><span class="p">);</span>
<span class="n">fprintf</span><span class="p">(</span><span class="n">stderr</span><span class="p">,</span>
<span class="s">"usage: cat-file (-t | -s | -e | -p) [-v] [-q] "</span>
<span class="s">"[-h|--help] [--git-dir=<dir>] <object></span><span class="se">\n</span><span class="s">"</span><span class="p">);</span>
<span class="n">exit</span><span class="p">(</span><span class="mi">1</span><span class="p">);</span>
<span class="p">}</span></pre></div>
</td>
</tr>
<tr id='section-7'>
<td class=docs>
<div class="pilwrap">
<a class="pilcrow" href="#section-7">¶</a>
</div>
<p>Parse the command-line options taken from git</p>
</td>
<td class=code>
<div class='highlight'><pre><span class="k">static</span> <span class="kt">void</span> <span class="nf">parse_opts</span><span class="p">(</span><span class="k">struct</span> <span class="n">catfile_options</span> <span class="o">*</span><span class="n">o</span><span class="p">,</span> <span class="kt">int</span> <span class="n">argc</span><span class="p">,</span> <span class="kt">char</span> <span class="o">*</span><span class="n">argv</span><span class="p">[])</span>
<span class="p">{</span>
<span class="k">struct</span> <span class="n">args_info</span> <span class="n">args</span> <span class="o">=</span> <span class="n">ARGS_INFO_INIT</span><span class="p">;</span>
<span class="k">for</span> <span class="p">(</span><span class="n">args</span><span class="p">.</span><span class="n">pos</span> <span class="o">=</span> <span class="mi">1</span><span class="p">;</span> <span class="n">args</span><span class="p">.</span><span class="n">pos</span> <span class="o"><</span> <span class="n">argc</span><span class="p">;</span> <span class="o">++</span><span class="n">args</span><span class="p">.</span><span class="n">pos</span><span class="p">)</span> <span class="p">{</span>
<span class="kt">char</span> <span class="o">*</span><span class="n">a</span> <span class="o">=</span> <span class="n">argv</span><span class="p">[</span><span class="n">args</span><span class="p">.</span><span class="n">pos</span><span class="p">];</span>
<span class="k">if</span> <span class="p">(</span><span class="n">a</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">!=</span> <span class="sc">'-'</span><span class="p">)</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="n">o</span><span class="o">-></span><span class="n">rev</span> <span class="o">!=</span> <span class="nb">NULL</span><span class="p">)</span>
<span class="n">usage</span><span class="p">(</span><span class="s">"Only one rev should be provided"</span><span class="p">,</span> <span class="nb">NULL</span><span class="p">);</span>
<span class="k">else</span>
<span class="n">o</span><span class="o">-></span><span class="n">rev</span> <span class="o">=</span> <span class="n">a</span><span class="p">;</span>
<span class="p">}</span>
<span class="k">else</span> <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">strcmp</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="s">"-t"</span><span class="p">))</span>
<span class="n">o</span><span class="o">-></span><span class="n">action</span> <span class="o">=</span> <span class="n">SHOW_TYPE</span><span class="p">;</span>
<span class="k">else</span> <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">strcmp</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="s">"-s"</span><span class="p">))</span>
<span class="n">o</span><span class="o">-></span><span class="n">action</span> <span class="o">=</span> <span class="n">SHOW_SIZE</span><span class="p">;</span>
<span class="k">else</span> <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">strcmp</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="s">"-e"</span><span class="p">))</span>
<span class="n">o</span><span class="o">-></span><span class="n">action</span> <span class="o">=</span> <span class="n">SHOW_NONE</span><span class="p">;</span>
<span class="k">else</span> <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">strcmp</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="s">"-p"</span><span class="p">))</span>
<span class="n">o</span><span class="o">-></span><span class="n">action</span> <span class="o">=</span> <span class="n">SHOW_PRETTY</span><span class="p">;</span>
<span class="k">else</span> <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">strcmp</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="s">"-q"</span><span class="p">))</span>
<span class="n">o</span><span class="o">-></span><span class="n">verbose</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
<span class="k">else</span> <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">strcmp</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="s">"-v"</span><span class="p">))</span>
<span class="n">o</span><span class="o">-></span><span class="n">verbose</span> <span class="o">=</span> <span class="mi">1</span><span class="p">;</span>
<span class="k">else</span> <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">strcmp</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="s">"--help"</span><span class="p">)</span> <span class="o">||</span> <span class="o">!</span><span class="n">strcmp</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="s">"-h"</span><span class="p">))</span>
<span class="n">usage</span><span class="p">(</span><span class="nb">NULL</span><span class="p">,</span> <span class="nb">NULL</span><span class="p">);</span>
<span class="k">else</span> <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">match_str_arg</span><span class="p">(</span><span class="o">&</span><span class="n">o</span><span class="o">-></span><span class="n">dir</span><span class="p">,</span> <span class="o">&</span><span class="n">args</span><span class="p">,</span> <span class="s">"--git-dir"</span><span class="p">))</span>
<span class="n">usage</span><span class="p">(</span><span class="s">"Unknown option"</span><span class="p">,</span> <span class="n">a</span><span class="p">);</span>
<span class="p">}</span>
<span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">o</span><span class="o">-></span><span class="n">action</span> <span class="o">||</span> <span class="o">!</span><span class="n">o</span><span class="o">-></span><span class="n">rev</span><span class="p">)</span>
<span class="n">usage</span><span class="p">(</span><span class="nb">NULL</span><span class="p">,</span> <span class="nb">NULL</span><span class="p">);</span>
<span class="p">}</span></pre></div>
</td>
</tr>
</table>
</div>
</body>
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