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* builtins.filterSource: pass the type of the file ("regular",

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"directory", "symlink") as the second argument to the filter
  predicate.
This commit is contained in:
Eelco Dolstra 2007-01-15 08:54:51 +00:00
parent 63f3ce6d9a
commit e4b0666f8e
3 changed files with 23 additions and 2 deletions
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19
src/libexpr/primops.cc
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@ -7,6 +7,10 @@
#include "expr-to-xml.hh"
#include "nixexpr-ast.hh"
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <algorithm>
@ -739,7 +743,20 @@ struct FilterFromExpr : PathFilter
bool operator () (const Path & path)
{
Expr call = makeCall(filter, makePath(toATerm(path)));
struct stat st;
if (lstat(path.c_str(), &st))
throw SysError(format("getting attributes of path `%1%'") % path);
Expr call =
makeCall(
makeCall(filter, makePath(toATerm(path))),
makeStr(
S_ISREG(st.st_mode) ? "regular" :
S_ISDIR(st.st_mode) ? "directory" :
S_ISLNK(st.st_mode) ? "symlink" :
"unknown" /* not supported, will fail! */
));
return evalBool(state, call);
}
};