show in madison command again also source packages (LP: #614589)

[apt.git] / apt-pkg / contrib / configuration.cc

diff --git a/apt-pkg/contrib/configuration.cc b/apt-pkg/contrib/configuration.cc
index 3140be446cabbbb7b05541f7cb835a808e716dba..81cc87d15e93b434e1a0003c65bdcc96b6ec7866 100644 (file)
--- a/apt-pkg/contrib/configuration.cc
+++ b/apt-pkg/contrib/configuration.cc
@@ -22,14 +22,8 @@
 #include <apti18n.h>
 
 #include <vector>
 #include <apti18n.h>
 
 #include <vector>

-#include <algorithm>

 #include <fstream>
 #include <iostream>
 #include <fstream>
 #include <iostream>

-    
-#include <stdio.h>
-#include <dirent.h>
-#include <sys/stat.h>
-#include <unistd.h>

 
 using namespace std;
                                                                        /*}}}*/
 
 using namespace std;
                                                                        /*}}}*/


@@ -85,7 +79,7 @@ Configuration::~Configuration()
 /* This will lookup a single item by name below another item. It is a 
    helper function for the main lookup function */
 Configuration::Item *Configuration::Lookup(Item *Head,const char *S,
 /* This will lookup a single item by name below another item. It is a 
    helper function for the main lookup function */
 Configuration::Item *Configuration::Lookup(Item *Head,const char *S,

-                                          unsigned long Len,bool Create)
+                                          unsigned long const &Len,bool const &Create)

 {
    int Res = 1;
    Item *I = Head->Child;
 {
    int Res = 1;
    Item *I = Head->Child;


@@ -118,7 +112,7 @@ Configuration::Item *Configuration::Lookup(Item *Head,const char *S,
 // ---------------------------------------------------------------------
 /* This performs a fully scoped lookup of a given name, possibly creating
    new items */
 // ---------------------------------------------------------------------
 /* This performs a fully scoped lookup of a given name, possibly creating
    new items */

-Configuration::Item *Configuration::Lookup(const char *Name,bool Create)
+Configuration::Item *Configuration::Lookup(const char *Name,bool const &Create)

 {
    if (Name == 0)
       return Root->Child;
 {
    if (Name == 0)
       return Root->Child;


@@ -182,9 +176,9 @@ string Configuration::FindFile(const char *Name,const char *Default) const
    if (Itm == 0 || Itm->Value.empty() == true)
    {
       if (Default == 0)
    if (Itm == 0 || Itm->Value.empty() == true)
    {
       if (Default == 0)

-        return "";
+        return rootDir;

       else
       else

-        return Default;
+        return rootDir + Default;

    }
    
    string val = Itm->Value;
    }
    
    string val = Itm->Value;


@@ -223,10 +217,29 @@ string Configuration::FindDir(const char *Name,const char *Default) const
    return Res;
 }
                                                                        /*}}}*/
    return Res;
 }
                                                                        /*}}}*/

+// Configuration::FindVector - Find a vector of values                 /*{{{*/
+// ---------------------------------------------------------------------
+/* Returns a vector of config values under the given item */
+vector<string> Configuration::FindVector(const char *Name) const
+{
+   vector<string> Vec;
+   const Item *Top = Lookup(Name);
+   if (Top == NULL)
+      return Vec;
+
+   Item *I = Top->Child;
+   while(I != NULL)
+   {
+      Vec.push_back(I->Value);
+      I = I->Next;
+   }
+   return Vec;
+}
+                                                                       /*}}}*/

 // Configuration::FindI - Find an integer value                                /*{{{*/
 // ---------------------------------------------------------------------
 /* */
 // Configuration::FindI - Find an integer value                                /*{{{*/
 // ---------------------------------------------------------------------
 /* */

-int Configuration::FindI(const char *Name,int Default) const
+int Configuration::FindI(const char *Name,int const &Default) const

 {
    const Item *Itm = Lookup(Name);
    if (Itm == 0 || Itm->Value.empty() == true)
 {
    const Item *Itm = Lookup(Name);
    if (Itm == 0 || Itm->Value.empty() == true)


@@ -243,7 +256,7 @@ int Configuration::FindI(const char *Name,int Default) const
 // Configuration::FindB - Find a boolean type                          /*{{{*/
 // ---------------------------------------------------------------------
 /* */
 // Configuration::FindB - Find a boolean type                          /*{{{*/
 // ---------------------------------------------------------------------
 /* */

-bool Configuration::FindB(const char *Name,bool Default) const
+bool Configuration::FindB(const char *Name,bool const &Default) const

 {
    const Item *Itm = Lookup(Name);
    if (Itm == 0 || Itm->Value.empty() == true)
 {
    const Item *Itm = Lookup(Name);
    if (Itm == 0 || Itm->Value.empty() == true)


@@ -319,7 +332,7 @@ void Configuration::Set(const char *Name,const string &Value)
 // Configuration::Set - Set an integer value                           /*{{{*/
 // ---------------------------------------------------------------------
 /* */
 // Configuration::Set - Set an integer value                           /*{{{*/
 // ---------------------------------------------------------------------
 /* */

-void Configuration::Set(const char *Name,int Value)
+void Configuration::Set(const char *Name,int const &Value)

 {
    Item *Itm = Lookup(Name,true);
    if (Itm == 0)
 {
    Item *Itm = Lookup(Name,true);
    if (Itm == 0)


@@ -332,7 +345,7 @@ void Configuration::Set(const char *Name,int Value)
 // Configuration::Clear - Clear an single value from a list            /*{{{*/
 // ---------------------------------------------------------------------
 /* */
 // Configuration::Clear - Clear an single value from a list            /*{{{*/
 // ---------------------------------------------------------------------
 /* */

-void Configuration::Clear(const string Name, int Value)
+void Configuration::Clear(string const &Name, int const &Value)

 {
    char S[300];
    snprintf(S,sizeof(S),"%i",Value);
 {
    char S[300];
    snprintf(S,sizeof(S),"%i",Value);


@@ -342,7 +355,7 @@ void Configuration::Clear(const string Name, int Value)
 // Configuration::Clear - Clear an single value from a list            /*{{{*/
 // ---------------------------------------------------------------------
 /* */
 // Configuration::Clear - Clear an single value from a list            /*{{{*/
 // ---------------------------------------------------------------------
 /* */

-void Configuration::Clear(const string Name, string Value)
+void Configuration::Clear(string const &Name, string const &Value)

 {
    Item *Top = Lookup(Name.c_str(),false);
    if (Top == 0 || Top->Child == 0)
 {
    Item *Top = Lookup(Name.c_str(),false);
    if (Top == 0 || Top->Child == 0)


@@ -373,7 +386,7 @@ void Configuration::Clear(const string Name, string Value)
 // Configuration::Clear - Clear an entire tree                         /*{{{*/
 // ---------------------------------------------------------------------
 /* */
 // Configuration::Clear - Clear an entire tree                         /*{{{*/
 // ---------------------------------------------------------------------
 /* */

-void Configuration::Clear(string Name)
+void Configuration::Clear(string const &Name)

 {
    Item *Top = Lookup(Name.c_str(),false);
    if (Top == 0) 
 {
    Item *Top = Lookup(Name.c_str(),false);
    if (Top == 0) 


@@ -488,8 +501,8 @@ string Configuration::Item::FullTag(const Item *Stop) const
    sections like 'zone "foo.org" { .. };' This causes each section to be
    added in with a tag like "zone::foo.org" instead of being split 
    tag/value. AsSectional enables Sectional parsing.*/
    sections like 'zone "foo.org" { .. };' This causes each section to be
    added in with a tag like "zone::foo.org" instead of being split 
    tag/value. AsSectional enables Sectional parsing.*/

-bool ReadConfigFile(Configuration &Conf,const string &FName,bool AsSectional,
-                   unsigned Depth)
+bool ReadConfigFile(Configuration &Conf,const string &FName,bool const &AsSectional,
+                   unsigned const &Depth)

 {   
    // Open the stream for reading
    ifstream F(FName.c_str(),ios::in); 
 {   
    // Open the stream for reading
    ifstream F(FName.c_str(),ios::in); 


@@ -511,6 +524,8 @@ bool ReadConfigFile(Configuration &Conf,const string &FName,bool AsSectional,
       std::string Input;
       // The input line with comments stripped.
       std::string Fragment;
       std::string Input;
       // The input line with comments stripped.
       std::string Fragment;

+
+      // Grab the next line of F and place it in Input.

       do
        {
          char *Buffer = new char[1024];
       do
        {
          char *Buffer = new char[1024];


@@ -519,12 +534,13 @@ bool ReadConfigFile(Configuration &Conf,const string &FName,bool AsSectional,
          F.getline(Buffer,sizeof(Buffer) / 2);
 
          Input += Buffer;
          F.getline(Buffer,sizeof(Buffer) / 2);
 
          Input += Buffer;

+         delete[] Buffer;

        }
       while (F.fail() && !F.eof());
 
        }
       while (F.fail() && !F.eof());
 

+      // Expand tabs in the input line and remove leading and trailing
+      // whitespace.

       {
       {

-       // Allocate enough space to expand an entire line of tabs
-       // below.

        const int BufferSize = Input.size() * 8 + 1;
        char *Buffer = new char[BufferSize];
        try
        const int BufferSize = Input.size() * 8 + 1;
        char *Buffer = new char[BufferSize];
        try


@@ -544,6 +560,9 @@ bool ReadConfigFile(Configuration &Conf,const string &FName,bool AsSectional,
       }
       CurLine++;
 
       }
       CurLine++;
 

+      // Now strip comments; if the whole line is contained in a
+      // comment, skip this line.
+

       // The first meaningful character in the current fragment; will
       // be adjusted below as we remove bytes from the front.
       std::string::const_iterator Start = Input.begin();
       // The first meaningful character in the current fragment; will
       // be adjusted below as we remove bytes from the front.
       std::string::const_iterator Start = Input.begin();


@@ -576,9 +595,11 @@ bool ReadConfigFile(Configuration &Conf,const string &FName,bool AsSectional,
            InQuote = !InQuote;
         if (InQuote == true)
            continue;
            InQuote = !InQuote;
         if (InQuote == true)
            continue;

-        
-        if (*I == '/' && I + 1 != End && I[1] == '/')
-         {
+
+        if ((*I == '/' && I + 1 != End && I[1] == '/') ||
+            (*I == '#' && strcmp(string(I,I+6).c_str(),"#clear") != 0 &&
+             strcmp(string(I,I+8).c_str(),"#include") != 0))
+        {

            End = I;
            break;
         }
            End = I;
            break;
         }


@@ -623,34 +644,28 @@ bool ReadConfigFile(Configuration &Conf,const string &FName,bool AsSectional,
       if (Fragment.empty())
         continue;
       
       if (Fragment.empty())
         continue;
       

-      // We now have a valid line fragment.  Walk down it and
-      // interpret it.
+      // The line has actual content; interpret what it means.

       InQuote = false;
       Start = Fragment.begin();
       End = Fragment.end();
       for (std::string::const_iterator I = Start;
           I != End; ++I)
       {
       InQuote = false;
       Start = Fragment.begin();
       End = Fragment.end();
       for (std::string::const_iterator I = Start;
           I != End; ++I)
       {

-        if(Start > End)
-          {
-            _error->Error("Why is Start > End?");
-          }
-

         if (*I == '"')
            InQuote = !InQuote;
         
         if (InQuote == false && (*I == '{' || *I == ';' || *I == '}'))
         {
            // Put the last fragment into the buffer
         if (*I == '"')
            InQuote = !InQuote;
         
         if (InQuote == false && (*I == '{' || *I == ';' || *I == '}'))
         {
            // Put the last fragment into the buffer

-           std::string::const_iterator FirstNonWhitespace = Start;
-           std::string::const_iterator LastNonWhitespace = I;
-           for (; FirstNonWhitespace != I && isspace(*FirstNonWhitespace) != 0; FirstNonWhitespace++)
+           std::string::const_iterator NonWhitespaceStart = Start;
+           std::string::const_iterator NonWhitespaceStop = I;
+           for (; NonWhitespaceStart != I && isspace(*NonWhitespaceStart) != 0; NonWhitespaceStart++)

              ;
              ;

-           for (; LastNonWhitespace != FirstNonWhitespace && isspace(LastNonWhitespace[-1]) != 0; LastNonWhitespace--)
+           for (; NonWhitespaceStop != NonWhitespaceStart && isspace(NonWhitespaceStop[-1]) != 0; NonWhitespaceStop--)

              ;
              ;

-           if (LineBuffer.empty() == false && LastNonWhitespace - FirstNonWhitespace != 0)
+           if (LineBuffer.empty() == false && NonWhitespaceStop - NonWhitespaceStart != 0)

               LineBuffer += ' ';
               LineBuffer += ' ';

-           LineBuffer += string(FirstNonWhitespace, LastNonWhitespace);
+           LineBuffer += string(NonWhitespaceStart, NonWhitespaceStop);

 
            // Drop this from the input string, saving the character
            // that terminated the construct we just closed. (i.e., a
 
            // Drop this from the input string, saving the character
            // that terminated the construct we just closed. (i.e., a


@@ -758,6 +773,8 @@ bool ReadConfigFile(Configuration &Conf,const string &FName,bool AsSectional,
               else
                  return _error->Error(_("Syntax error %s:%u: Unsupported directive '%s'"),FName.c_str(),CurLine,Tag.c_str());
            }
               else
                  return _error->Error(_("Syntax error %s:%u: Unsupported directive '%s'"),FName.c_str(),CurLine,Tag.c_str());
            }

+           else if (Tag.empty() == true && NoWord == false && Word == "#clear")
+              return _error->Error(_("Syntax error %s:%u: clear directive requires an option tree as argument"),FName.c_str(),CurLine);

            else
            {
               // Set the item in the configuration class
            else
            {
               // Set the item in the configuration class


@@ -814,39 +831,10 @@ bool ReadConfigFile(Configuration &Conf,const string &FName,bool AsSectional,
 // ReadConfigDir - Read a directory of config files                    /*{{{*/
 // ---------------------------------------------------------------------
 /* */
 // ReadConfigDir - Read a directory of config files                    /*{{{*/
 // ---------------------------------------------------------------------
 /* */

-bool ReadConfigDir(Configuration &Conf,const string &Dir,bool AsSectional,
-                  unsigned Depth)
-{   
-   DIR *D = opendir(Dir.c_str());
-   if (D == 0)
-      return _error->Errno("opendir",_("Unable to read %s"),Dir.c_str());
-
-   vector<string> List;
-   
-   for (struct dirent *Ent = readdir(D); Ent != 0; Ent = readdir(D))
-   {
-      if (Ent->d_name[0] == '.')
-        continue;
-      
-      // Skip bad file names ala run-parts
-      const char *C = Ent->d_name;
-      for (; *C != 0; C++)
-        if (isalpha(*C) == 0 && isdigit(*C) == 0 && *C != '_' && *C != '-')
-           break;
-      if (*C != 0)
-        continue;
-      
-      // Make sure it is a file and not something else
-      string File = flCombine(Dir,Ent->d_name);
-      struct stat St;
-      if (stat(File.c_str(),&St) != 0 || S_ISREG(St.st_mode) == 0)
-        continue;
-      
-      List.push_back(File);      
-   }   
-   closedir(D);
-   
-   sort(List.begin(),List.end());
+bool ReadConfigDir(Configuration &Conf,const string &Dir,
+                  bool const &AsSectional, unsigned const &Depth)
+{
+   vector<string> const List = GetListOfFilesInDir(Dir, "conf", true, true);

 
    // Read the files
    for (vector<string>::const_iterator I = List.begin(); I != List.end(); I++)
 
    // Read the files
    for (vector<string>::const_iterator I = List.begin(); I != List.end(); I++)


@@ -855,3 +843,46 @@ bool ReadConfigDir(Configuration &Conf,const string &Dir,bool AsSectional,
    return true;
 }
                                                                        /*}}}*/
    return true;
 }
                                                                        /*}}}*/

+// MatchAgainstConfig Constructor                                      /*{{{*/
+Configuration::MatchAgainstConfig::MatchAgainstConfig(char const * Config)
+{
+   std::vector<std::string> const strings = _config->FindVector(Config);
+   for (std::vector<std::string>::const_iterator s = strings.begin();
+       s != strings.end(); ++s)
+   {
+      regex_t *p = new regex_t;
+      if (regcomp(p, s->c_str(), REG_EXTENDED | REG_ICASE | REG_NOSUB) == 0)
+        patterns.push_back(p);
+      else
+      {
+        regfree(p);
+        delete p;
+        _error->Warning("Regex compilation error for '%s' in configuration option '%s'",
+                               s->c_str(), Config);
+      }
+    }
+
+}
+                                                                       /*}}}*/
+// MatchAgainstConfig Destructor                                       /*{{{*/
+Configuration::MatchAgainstConfig::~MatchAgainstConfig()
+{
+   for(std::vector<regex_t *>::const_iterator p = patterns.begin();
+       p != patterns.end(); ++p)
+   {
+      regfree(*p);
+      delete *p;
+   }
+}
+                                                                       /*}}}*/
+// MatchAgainstConfig::Match - returns true if a pattern matches       /*{{{*/
+bool Configuration::MatchAgainstConfig::Match(char const * str) const
+{
+   for(std::vector<regex_t *>::const_iterator p = patterns.begin();
+       p != patterns.end(); ++p)
+      if (regexec(*p, str, 0, 0, 0) == 0)
+        return true;
+
+   return false;
+}
+                                                                       /*}}}*/