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37 #include "gromacs/commandline/shellcompletions.h"
43 #include <boost/scoped_ptr.hpp>
45 #include "gromacs/commandline/cmdlinehelpcontext.h"
46 #include "gromacs/commandline/pargs.h"
47 #include "gromacs/options/basicoptions.h"
48 #include "gromacs/options/filenameoption.h"
49 #include "gromacs/options/optionsvisitor.h"
50 #include "gromacs/fileio/filenm.h"
51 #include "gromacs/utility/arrayref.h"
52 #include "gromacs/utility/exceptions.h"
53 #include "gromacs/utility/file.h"
54 #include "gromacs/utility/gmxassert.h"
55 #include "gromacs/utility/stringutil.h"
63 class OptionsListWriter : public OptionsVisitor
66 const std::string &optionList() const { return optionList_; }
68 virtual void visitSubSection(const Options §ion)
70 OptionsIterator iterator(section);
71 iterator.acceptSubSections(this);
72 iterator.acceptOptions(this);
74 virtual void visitOption(const OptionInfo &option)
76 if (option.isHidden())
80 if (!optionList_.empty())
82 optionList_.append("\\n");
84 optionList_.append("-");
85 const BooleanOptionInfo *booleanOption
86 = option.toType<BooleanOptionInfo>();
87 if (booleanOption != NULL && booleanOption->defaultValue())
89 optionList_.append("no");
91 optionList_.append(option.name());
95 std::string optionList_;
98 class OptionCompletionWriter : public OptionsVisitor
101 explicit OptionCompletionWriter(File *out) : out_(*out) {}
103 virtual void visitSubSection(const Options §ion)
105 OptionsIterator iterator(section);
106 iterator.acceptSubSections(this);
107 iterator.acceptOptions(this);
109 virtual void visitOption(const OptionInfo &option);
112 void writeOptionCompletion(const OptionInfo &option,
113 const std::string &completion);
118 void OptionCompletionWriter::visitOption(const OptionInfo &option)
120 if (option.isHidden())
124 const FileNameOptionInfo *fileOption = option.toType<FileNameOptionInfo>();
125 if (fileOption != NULL)
127 if (fileOption->isDirectoryOption())
129 writeOptionCompletion(option, "compgen -S ' ' -d $c");
132 const FileNameOptionInfo::ExtensionList &extensionList = fileOption->extensions();
133 if (extensionList.empty())
137 std::string completion("compgen -S ' ' -X '!*");
138 std::string extensions(joinStrings(extensionList, "|"));
139 if (extensionList.size() > 1)
141 extensions = "@(" + extensions + ")";
143 completion.append(extensions);
144 // TODO: Don't duplicate this from filenm.c/futil.c.
145 completion.append("?(.gz|.Z)' -f -- $c ; compgen -S '/' -d $c");
146 writeOptionCompletion(option, completion);
149 const StringOptionInfo *stringOption = option.toType<StringOptionInfo>();
150 if (stringOption != NULL && stringOption->isEnumerated())
152 std::string completion("compgen -S ' ' -W $'");
153 completion.append(joinStrings(stringOption->allowedValues(), "\\n"));
154 completion.append("' -- $c");
155 writeOptionCompletion(option, completion);
160 void OptionCompletionWriter::writeOptionCompletion(
161 const OptionInfo &option, const std::string &completion)
163 std::string result(formatString("-%s) ", option.name().c_str()));
164 if (option.maxValueCount() >= 0)
166 result.append(formatString("(( $n <= %d )) && ", option.maxValueCount()));
168 result.append("COMPREPLY=( $(");
169 result.append(completion);
170 result.append("));;");
171 out_.writeLine(result);
176 class ShellCompletionWriter::Impl
179 Impl(const std::string &binaryName, ShellCompletionFormat /*format*/)
180 : binaryName_(binaryName)
184 std::string completionFunctionName(const char *moduleName) const
186 // TODO: Consider if some characters need to be escaped.
187 return formatString("_%s_%s_compl", binaryName_.c_str(), moduleName);
190 std::string binaryName_;
191 boost::scoped_ptr<File> file_;
194 ShellCompletionWriter::ShellCompletionWriter(const std::string &binaryName,
195 ShellCompletionFormat format)
196 : impl_(new Impl(binaryName, format))
200 ShellCompletionWriter::~ShellCompletionWriter()
204 File *ShellCompletionWriter::outputFile()
206 return impl_->file_.get();
209 void ShellCompletionWriter::startCompletions()
211 impl_->file_.reset(new File(impl_->binaryName_ + "-completion.bash", "w"));
212 impl_->file_->writeLine("shopt -s extglob");
215 void ShellCompletionWriter::writeModuleCompletions(
216 const char *moduleName,
217 const Options &options)
219 File &out = *impl_->file_;
220 out.writeLine(formatString("%s() {", impl_->completionFunctionName(moduleName).c_str()));
221 out.writeLine("local IFS=$'\\n'");
222 out.writeLine("local c=${COMP_WORDS[COMP_CWORD]}");
223 out.writeLine("local n");
224 out.writeLine("for ((n=1;n<COMP_CWORD;++n)) ; do [[ \"${COMP_WORDS[COMP_CWORD-n]}\" == -* ]] && break ; done");
225 out.writeLine("local p=${COMP_WORDS[COMP_CWORD-n]}");
226 out.writeLine("COMPREPLY=()");
228 OptionsListWriter listWriter;
229 listWriter.visitSubSection(options);
230 out.writeLine(formatString("if (( $COMP_CWORD <= 1 )) || [[ $c == -* ]]; then COMPREPLY=( $(compgen -S ' ' -W $'%s' -- $c)); return 0; fi", listWriter.optionList().c_str()));
232 out.writeLine("case \"$p\" in");
233 OptionCompletionWriter optionWriter(&out);
234 optionWriter.visitSubSection(options);
235 out.writeLine("esac }");
238 void ShellCompletionWriter::writeWrapperCompletions(
239 const ModuleNameList &modules, const Options &options)
241 impl_->file_->writeLine("_" + impl_->binaryName_ + "_compl() {");
242 impl_->file_->writeLine("local i c m");
243 impl_->file_->writeLine("local IFS=$'\\n'\n");
244 impl_->file_->writeLine("COMPREPLY=()");
245 impl_->file_->writeLine("unset COMP_WORDS[0]");
246 impl_->file_->writeLine("for ((i=1;i<COMP_CWORD;++i)) ; do");
247 impl_->file_->writeLine("[[ \"${COMP_WORDS[i]}\" != -* ]] && break");
248 impl_->file_->writeLine("unset COMP_WORDS[i]");
249 impl_->file_->writeLine("done");
250 impl_->file_->writeLine("if (( i == COMP_CWORD )); then");
251 impl_->file_->writeLine("c=${COMP_WORDS[COMP_CWORD]}");
252 OptionsListWriter lister;
253 lister.visitSubSection(options);
254 std::string completions(lister.optionList());
255 for (ModuleNameList::const_iterator i = modules.begin();
256 i != modules.end(); ++i)
258 completions.append("\\n");
259 completions.append(*i);
261 impl_->file_->writeLine("COMPREPLY=( $(compgen -S ' ' -W $'" + completions + "' -- $c) )");
262 impl_->file_->writeLine("return 0");
263 impl_->file_->writeLine("fi");
264 impl_->file_->writeLine("m=${COMP_WORDS[i]}");
265 impl_->file_->writeLine("COMP_WORDS=( \"${COMP_WORDS[@]}\" )");
266 impl_->file_->writeLine("COMP_CWORD=$((COMP_CWORD-i))");
267 impl_->file_->writeLine("case \"$m\" in");
268 for (ModuleNameList::const_iterator i = modules.begin();
269 i != modules.end(); ++i)
271 const char *const name = i->c_str();
272 impl_->file_->writeLine(formatString("%s) %s ;;", name,
273 impl_->completionFunctionName(name).c_str()));
275 impl_->file_->writeLine("esac }");
278 void ShellCompletionWriter::finishCompletions()
280 impl_->file_->close();
281 impl_->file_.reset();