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<th class=docs><h1>add.c</h1></th>
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<div class='highlight'><pre><span></span><span class="cm">/*</span>
<span class="cm"> * libgit2 "add" example - shows how to modify the index</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></pre></div>
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<p>The following example demonstrates how to add files with libgit2.</p>
<p>It will use the repository in the current working directory, and act
on files passed as its parameters.</p>
<p>Recognized options are:
-v/--verbose: show the file's status after acting on it.
-n/--dry-run: do not actually change the index.
-u/--update: update the index instead of adding to it.</p>
</td>
<td class=code>
<div class='highlight'><pre><span class="k">enum</span> <span class="n">index_mode</span> <span class="p">{</span>
<span class="n">INDEX_NONE</span><span class="p">,</span>
<span class="n">INDEX_ADD</span>
<span class="p">};</span>
<span class="k">struct</span> <span class="n">index_options</span> <span class="p">{</span>
<span class="kt">int</span> <span class="n">dry_run</span><span class="p">;</span>
<span class="kt">int</span> <span class="n">verbose</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="k">enum</span> <span class="n">index_mode</span> <span class="n">mode</span><span class="p">;</span>
<span class="kt">int</span> <span class="n">add_update</span><span class="p">;</span>
<span class="p">};</span>
<span class="cm">/* Forward declarations for helpers */</span>
<span class="k">static</span> <span class="kt">void</span> <span class="nf">parse_opts</span><span class="p">(</span><span class="k">const</span> <span class="kt">char</span> <span class="o">**</span><span class="n">repo_path</span><span class="p">,</span> <span class="k">struct</span> <span class="n">index_options</span> <span class="o">*</span><span class="n">opts</span><span class="p">,</span> <span class="k">struct</span> <span class="n">args_info</span> <span class="o">*</span><span class="n">args</span><span class="p">);</span>
<span class="kt">int</span> <span class="nf">print_matched_cb</span><span class="p">(</span><span class="k">const</span> <span class="kt">char</span> <span class="o">*</span><span class="n">path</span><span class="p">,</span> <span class="k">const</span> <span class="kt">char</span> <span class="o">*</span><span class="n">matched_pathspec</span><span class="p">,</span> <span class="kt">void</span> <span class="o">*</span><span class="n">payload</span><span class="p">);</span>
<span class="kt">int</span> <span class="nf">lg2_add</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="n">git_index_matched_path_cb</span> <span class="n">matched_cb</span> <span class="o">=</span> <span class="nb">NULL</span><span class="p">;</span>
<span class="n">git_index</span> <span class="o">*</span><span class="n">index</span><span class="p">;</span>
<span class="n">git_strarray</span> <span class="n">array</span> <span class="o">=</span> <span class="p">{</span><span class="mi">0</span><span class="p">};</span>
<span class="k">struct</span> <span class="n">index_options</span> <span class="n">options</span> <span class="o">=</span> <span class="p">{</span><span class="mi">0</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="n">options</span><span class="p">.</span><span class="n">mode</span> <span class="o">=</span> <span class="n">INDEX_ADD</span><span class="p">;</span>
<span class="cm">/* Parse the options & arguments. */</span>
<span class="n">parse_opts</span><span class="p">(</span><span class="nb">NULL</span><span class="p">,</span> <span class="o">&</span><span class="n">options</span><span class="p">,</span> <span class="o">&</span><span class="n">args</span><span class="p">);</span>
<span class="n">strarray_from_args</span><span class="p">(</span><span class="o">&</span><span class="n">array</span><span class="p">,</span> <span class="o">&</span><span class="n">args</span><span class="p">);</span>
<span class="cm">/* Grab the repository's index. */</span>
<span class="n">check_lg2</span><span class="p">(</span><span class="n"><a name="git_repository_index-5" class="fnlink" href="../../#v1.6.0/group/repository/git_repository_index">git_repository_index</a></span><span class="p">(</span><span class="o">&</span><span class="n">index</span><span class="p">,</span> <span class="n">repo</span><span class="p">),</span> <span class="s">"Could not open repository index"</span><span class="p">,</span> <span class="nb">NULL</span><span class="p">);</span>
<span class="cm">/* Setup a callback if the requested options need it */</span>
<span class="k">if</span> <span class="p">(</span><span class="n">options</span><span class="p">.</span><span class="n">verbose</span> <span class="o">||</span> <span class="n">options</span><span class="p">.</span><span class="n">dry_run</span><span class="p">)</span> <span class="p">{</span>
<span class="n">matched_cb</span> <span class="o">=</span> <span class="o">&</span><span class="n">print_matched_cb</span><span class="p">;</span>
<span class="p">}</span>
<span class="n">options</span><span class="p">.</span><span class="n">repo</span> <span class="o">=</span> <span class="n">repo</span><span class="p">;</span>
<span class="cm">/* Perform the requested action with the index and files */</span>
<span class="k">if</span> <span class="p">(</span><span class="n">options</span><span class="p">.</span><span class="n">add_update</span><span class="p">)</span> <span class="p">{</span>
<span class="n"><a name="git_index_update_all-4" class="fnlink" href="../../#v1.6.0/group/index/git_index_update_all">git_index_update_all</a></span><span class="p">(</span><span class="n">index</span><span class="p">,</span> <span class="o">&</span><span class="n">array</span><span class="p">,</span> <span class="n">matched_cb</span><span class="p">,</span> <span class="o">&</span><span class="n">options</span><span class="p">);</span>
<span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
<span class="n"><a name="git_index_add_all-3" class="fnlink" href="../../#v1.6.0/group/index/git_index_add_all">git_index_add_all</a></span><span class="p">(</span><span class="n">index</span><span class="p">,</span> <span class="o">&</span><span class="n">array</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="n">matched_cb</span><span class="p">,</span> <span class="o">&</span><span class="n">options</span><span class="p">);</span>
<span class="p">}</span>
<span class="cm">/* Cleanup memory */</span>
<span class="n"><a name="git_index_write-2" class="fnlink" href="../../#v1.6.0/group/index/git_index_write">git_index_write</a></span><span class="p">(</span><span class="n">index</span><span class="p">);</span>
<span class="n"><a name="git_index_free-1" class="fnlink" href="../../#v1.6.0/group/index/git_index_free">git_index_free</a></span><span class="p">(</span><span class="n">index</span><span class="p">);</span>
<span class="k">return</span> <span class="mi">0</span><span class="p">;</span>
<span class="p">}</span>
<span class="cm">/*</span>
<span class="cm"> * This callback is called for each file under consideration by</span>
<span class="cm"> * git_index_(update|add)_all above.</span>
<span class="cm"> * It makes uses of the callback's ability to abort the action.</span>
<span class="cm"> */</span>
<span class="kt">int</span> <span class="nf">print_matched_cb</span><span class="p">(</span><span class="k">const</span> <span class="kt">char</span> <span class="o">*</span><span class="n">path</span><span class="p">,</span> <span class="k">const</span> <span class="kt">char</span> <span class="o">*</span><span class="n">matched_pathspec</span><span class="p">,</span> <span class="kt">void</span> <span class="o">*</span><span class="n">payload</span><span class="p">)</span>
<span class="p">{</span>
<span class="k">struct</span> <span class="n">index_options</span> <span class="o">*</span><span class="n">opts</span> <span class="o">=</span> <span class="p">(</span><span class="k">struct</span> <span class="n">index_options</span> <span class="o">*</span><span class="p">)(</span><span class="n">payload</span><span class="p">);</span>
<span class="kt">int</span> <span class="n">ret</span><span class="p">;</span>
<span class="kt">unsigned</span> <span class="n">status</span><span class="p">;</span>
<span class="p">(</span><span class="kt">void</span><span class="p">)</span><span class="n">matched_pathspec</span><span class="p">;</span>
<span class="cm">/* Get the file status */</span>
<span class="k">if</span> <span class="p">(</span><span class="n"><a name="git_status_file-6" class="fnlink" href="../../#v1.6.0/group/status/git_status_file">git_status_file</a></span><span class="p">(</span><span class="o">&</span><span class="n">status</span><span class="p">,</span> <span class="n">opts</span><span class="o">-></span><span class="n">repo</span><span class="p">,</span> <span class="n">path</span><span class="p">)</span> <span class="o"><</span> <span class="mi">0</span><span class="p">)</span>
<span class="k">return</span> <span class="o">-</span><span class="mi">1</span><span class="p">;</span>
<span class="k">if</span> <span class="p">((</span><span class="n">status</span> <span class="o">&</span> <span class="n">GIT_STATUS_WT_MODIFIED</span><span class="p">)</span> <span class="o">||</span> <span class="p">(</span><span class="n">status</span> <span class="o">&</span> <span class="n">GIT_STATUS_WT_NEW</span><span class="p">))</span> <span class="p">{</span>
<span class="n">printf</span><span class="p">(</span><span class="s">"add '%s'</span><span class="se">\n</span><span class="s">"</span><span class="p">,</span> <span class="n">path</span><span class="p">);</span>
<span class="n">ret</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
<span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
<span class="n">ret</span> <span class="o">=</span> <span class="mi">1</span><span class="p">;</span>
<span class="p">}</span>
<span class="k">if</span> <span class="p">(</span><span class="n">opts</span><span class="o">-></span><span class="n">dry_run</span><span class="p">)</span>
<span class="n">ret</span> <span class="o">=</span> <span class="mi">1</span><span class="p">;</span>
<span class="k">return</span> <span class="n">ret</span><span class="p">;</span>
<span class="p">}</span>
<span class="k">static</span> <span class="kt">void</span> <span class="nf">print_usage</span><span class="p">(</span><span class="kt">void</span><span class="p">)</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: add [options] [--] file-spec [file-spec] [...]</span><span class="se">\n\n</span><span class="s">"</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">"</span><span class="se">\t</span><span class="s">-n, --dry-run dry run</span><span class="se">\n</span><span class="s">"</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">"</span><span class="se">\t</span><span class="s">-v, --verbose be verbose</span><span class="se">\n</span><span class="s">"</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">"</span><span class="se">\t</span><span class="s">-u, --update update tracked files</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>
<span class="k">static</span> <span class="kt">void</span> <span class="nf">parse_opts</span><span class="p">(</span><span class="k">const</span> <span class="kt">char</span> <span class="o">**</span><span class="n">repo_path</span><span class="p">,</span> <span class="k">struct</span> <span class="n">index_options</span> <span class="o">*</span><span class="n">opts</span><span class="p">,</span> <span class="k">struct</span> <span class="n">args_info</span> <span class="o">*</span><span class="n">args</span><span class="p">)</span>
<span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="n">args</span><span class="o">-></span><span class="n">argc</span> <span class="o"><=</span> <span class="mi">1</span><span class="p">)</span>
<span class="n">print_usage</span><span class="p">();</span>
<span class="k">for</span> <span class="p">(</span><span class="n">args</span><span class="o">-></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="o">-></span><span class="n">pos</span> <span class="o"><</span> <span class="n">args</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="o">-></span><span class="n">pos</span><span class="p">)</span> <span class="p">{</span>
<span class="k">const</span> <span class="kt">char</span> <span class="o">*</span><span class="n">curr</span> <span class="o">=</span> <span class="n">args</span><span class="o">-></span><span class="n">argv</span><span class="p">[</span><span class="n">args</span><span class="o">-></span><span class="n">pos</span><span class="p">];</span>
<span class="k">if</span> <span class="p">(</span><span class="n">curr</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="o">!</span><span class="n">strcmp</span><span class="p">(</span><span class="s">"add"</span><span class="p">,</span> <span class="n">curr</span><span class="p">))</span> <span class="p">{</span>
<span class="n">opts</span><span class="o">-></span><span class="n">mode</span> <span class="o">=</span> <span class="n">INDEX_ADD</span><span class="p">;</span>
<span class="k">continue</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="n">opts</span><span class="o">-></span><span class="n">mode</span> <span class="o">==</span> <span class="n">INDEX_NONE</span><span class="p">)</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">"missing command: %s"</span><span class="p">,</span> <span class="n">curr</span><span class="p">);</span>
<span class="n">print_usage</span><span class="p">();</span>
<span class="k">break</span><span class="p">;</span>
<span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
<span class="cm">/* We might be looking at a filename */</span>
<span class="k">break</span><span class="p">;</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="n">match_bool_arg</span><span class="p">(</span><span class="o">&</span><span class="n">opts</span><span class="o">-></span><span class="n">verbose</span><span class="p">,</span> <span class="n">args</span><span class="p">,</span> <span class="s">"--verbose"</span><span class="p">)</span> <span class="o">||</span>
<span class="n">match_bool_arg</span><span class="p">(</span><span class="o">&</span><span class="n">opts</span><span class="o">-></span><span class="n">dry_run</span><span class="p">,</span> <span class="n">args</span><span class="p">,</span> <span class="s">"--dry-run"</span><span class="p">)</span> <span class="o">||</span>
<span class="n">match_str_arg</span><span class="p">(</span><span class="n">repo_path</span><span class="p">,</span> <span class="n">args</span><span class="p">,</span> <span class="s">"--git-dir"</span><span class="p">)</span> <span class="o">||</span>
<span class="p">(</span><span class="n">opts</span><span class="o">-></span><span class="n">mode</span> <span class="o">==</span> <span class="n">INDEX_ADD</span> <span class="o">&&</span> <span class="n">match_bool_arg</span><span class="p">(</span><span class="o">&</span><span class="n">opts</span><span class="o">-></span><span class="n">add_update</span><span class="p">,</span> <span class="n">args</span><span class="p">,</span> <span class="s">"--update"</span><span class="p">)))</span> <span class="p">{</span>
<span class="k">continue</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="n">match_bool_arg</span><span class="p">(</span><span class="nb">NULL</span><span class="p">,</span> <span class="n">args</span><span class="p">,</span> <span class="s">"--help"</span><span class="p">))</span> <span class="p">{</span>
<span class="n">print_usage</span><span class="p">();</span>
<span class="k">break</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="n">match_arg_separator</span><span class="p">(</span><span class="n">args</span><span class="p">))</span> <span class="p">{</span>
<span class="k">break</span><span class="p">;</span>
<span class="p">}</span> <span class="k">else</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">"Unsupported option %s.</span><span class="se">\n</span><span class="s">"</span><span class="p">,</span> <span class="n">curr</span><span class="p">);</span>
<span class="n">print_usage</span><span class="p">();</span>
<span class="p">}</span>
<span class="p">}</span>
<span class="p">}</span></pre></div>
</td>
</tr>
</table>
</div>
</body>
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