#include <Git.h>
Public Types | |
enum | ObjectType { Tree, Commit, Blob } |
Git object type. More... | |
typedef std::list< std::pair < std::string, std::string > > | Cache |
Public Member Functions | |
Git () | |
Constructor. | |
void | setRepositoryPath (const std::string &repository) |
Set the git repository path. | |
ObjectId | getCommitTree (const std::string &revision) const |
Get the tree for a particular revision. | |
ObjectId | getCommit (const std::string &revision) const |
Get the commit for a particular revision. | |
ObjectId | getTreeFromCommit (const ObjectId &commit) const |
Get the tree for a particular commit. | |
Object | treeGetObject (const ObjectId &tree, int index) const |
Get some info on a tree object. | |
int | treeSize (const ObjectId &tree) const |
Return the number of objects inside a tree object. | |
std::string | catFile (const ObjectId &id) const |
Return the raw contents of a git object. | |
Private Member Functions | |
void | checkRepository () const |
Checks the repository. | |
bool | getCmdResult (const std::string &cmd, std::string &result, const std::string &tag) const |
Returns a line identified by a tag from the output of a git command. | |
bool | getCmdResult (const std::string &cmd, std::string &result, int index) const |
Returns the ith line from the output of a git command. | |
int | getCmdResultLineCount (const std::string &cmd) const |
Returns the number of lines in the output of a git command. | |
Private Attributes | |
std::string | repository_ |
The path to the repository. | |
Cache | cache_ |
A small LRU cache that stores results of git commands. | |
Classes | |
class | Exception |
Exception class. More... | |
struct | Object |
Git object. More... | |
class | ObjectId |
Git object Id. More... |
Far from complete! Only browses git revisions.
Definition at line 23 of file Git.h.
typedef std::list<std::pair<std::string, std::string> > Git::Cache |
enum Git::ObjectType |
Git::Git | ( | ) |
void Git::setRepositoryPath | ( | const std::string & | repository | ) |
Set the git repository path.
Exception | : if the path does not specify a valid repository. |
Definition at line 179 of file Git.C.
00180 { 00181 repository_ = repositoryPath; 00182 checkRepository(); 00183 }
Git::ObjectId Git::getCommitTree | ( | const std::string & | revision | ) | const |
Get the tree for a particular revision.
Exception | : in case of a git error. |
Definition at line 185 of file Git.C.
00186 { 00187 Git::ObjectId commit = getCommit(revision); 00188 return getTreeFromCommit(commit); 00189 }
Git::ObjectId Git::getCommit | ( | const std::string & | revision | ) | const |
Get the commit for a particular revision.
Exception | : in case of a git error. |
Definition at line 201 of file Git.C.
00202 { 00203 std::string sha1Commit; 00204 getCmdResult("rev-parse " + revision, sha1Commit, 0); 00205 return ObjectId(sha1Commit); 00206 }
Git::ObjectId Git::getTreeFromCommit | ( | const ObjectId & | commit | ) | const |
Get the tree for a particular commit.
Exception | : in case of a git error. |
Definition at line 208 of file Git.C.
00209 { 00210 std::string treeLine; 00211 if (!getCmdResult("cat-file -p " + commit.toString(), treeLine, "tree")) 00212 throw Exception("Git: could not parse tree from commit '" 00213 + commit.toString() + "'"); 00214 00215 std::vector<std::string> v; 00216 boost::split(v, treeLine, boost::is_any_of(" ")); 00217 if (v.size() != 2) 00218 throw Exception("Git: could not parse tree from commit '" 00219 + commit.toString() + "': '" + treeLine + "'"); 00220 return ObjectId(v[1]); 00221 }
Git::Object Git::treeGetObject | ( | const ObjectId & | tree, | |
int | index | |||
) | const |
Get some info on a tree object.
The object is specified based on its index in the parent tree object.
Exception | : in case of a git error. |
Definition at line 223 of file Git.C.
00224 { 00225 std::string objectLine; 00226 if (!getCmdResult("cat-file -p " + tree.toString(), objectLine, index)) 00227 throw Exception("Git: could not read object %" 00228 + boost::lexical_cast<std::string>(index) 00229 + " from tree " + tree.toString()); 00230 else { 00231 std::vector<std::string> v1, v2; 00232 boost::split(v1, objectLine, boost::is_any_of("\t")); 00233 if (v1.size() != 2) 00234 throw Exception("Git: could not parse tree object line: '" 00235 + objectLine + "'"); 00236 boost::split(v2, v1[0], boost::is_any_of(" ")); 00237 if (v2.size() != 3) 00238 throw Exception("Git: could not parse tree object line: '" 00239 + objectLine + "'"); 00240 00241 const std::string& stype = v2[1]; 00242 ObjectType type; 00243 if (stype == "tree") 00244 type = Tree; 00245 else if (stype == "blob") 00246 type = Blob; 00247 else 00248 throw Exception("Git: Unknown type: " + stype); 00249 00250 Git::Object result(ObjectId(v2[2]), type); 00251 result.name = v1[1]; 00252 00253 return result; 00254 } 00255 }
int Git::treeSize | ( | const ObjectId & | tree | ) | const |
Return the number of objects inside a tree object.
Exception | : in case of a git error. |
Definition at line 257 of file Git.C.
00258 { 00259 return getCmdResultLineCount("cat-file -p " + tree.toString()); 00260 }
std::string Git::catFile | ( | const ObjectId & | id | ) | const |
Return the raw contents of a git object.
Exception | : in case of a git error. |
Definition at line 191 of file Git.C.
00192 { 00193 std::string result; 00194 00195 if (!getCmdResult("cat-file -p " + id.toString(), result, -1)) 00196 throw Exception("Git: could not cat '" + id.toString() + "'"); 00197 00198 return result; 00199 }
void Git::checkRepository | ( | ) | const [private] |
Checks the repository.
Exception | : in case the repository is not a valid. |
Definition at line 318 of file Git.C.
00319 { 00320 POpenWrapper p("git --git-dir=" + repository_ + " branch", cache_); 00321 00322 if (p.exitStatus() != 0) 00323 throw Exception("Git error: " + p.readLine()); 00324 }
bool Git::getCmdResult | ( | const std::string & | cmd, | |
std::string & | result, | |||
const std::string & | tag | |||
) | const [private] |
Returns a line identified by a tag from the output of a git command.
The line is filled in result. Returns whether a line starting with tag could be found.
Exception | : in case the command failed |
Definition at line 285 of file Git.C.
00287 { 00288 POpenWrapper p("git --git-dir=" + repository_ + " " + gitCmd, cache_); 00289 00290 if (p.exitStatus() != 0) 00291 throw Exception("Git error: " + p.readLine()); 00292 00293 while (!p.finished()) { 00294 result = p.readLine(); 00295 if (boost::starts_with(result, tag)) 00296 return true; 00297 } 00298 00299 return false; 00300 }
bool Git::getCmdResult | ( | const std::string & | cmd, | |
std::string & | result, | |||
int | index | |||
) | const [private] |
Returns the ith line from the output of a git command.
The line is filled in result. Returns the whole git output if index = -1, otherwise the line with line number index.
Exception | : in case the command failed |
Definition at line 262 of file Git.C.
00264 { 00265 POpenWrapper p("git --git-dir=" + repository_ + " " + gitCmd, cache_); 00266 00267 if (p.exitStatus() != 0) 00268 throw Exception("Git error: " + p.readLine()); 00269 00270 if (index == -1) { 00271 result = p.contents(); 00272 return true; 00273 } else 00274 result = p.readLine(); 00275 00276 for (int i = 0; i < index; ++i) { 00277 if (p.finished()) 00278 return false; 00279 result = p.readLine(); 00280 } 00281 00282 return true; 00283 }
int Git::getCmdResultLineCount | ( | const std::string & | cmd | ) | const [private] |
Returns the number of lines in the output of a git command.
Exception | : in case the command failed |
Definition at line 302 of file Git.C.
00303 { 00304 POpenWrapper p("git --git-dir=" + repository_ + " " + gitCmd, cache_); 00305 00306 if (p.exitStatus() != 0) 00307 throw Exception("Git error: " + p.readLine()); 00308 00309 int result = 0; 00310 while (!p.finished()) { 00311 p.readLine(); 00312 ++result; 00313 } 00314 00315 return result; 00316 }
std::string Git::repository_ [private] |
Cache Git::cache_ [mutable, private] |