* builtins.filterSource: pass the type of the file ("regular",
"directory", "symlink") as the second argument to the filter predicate.
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3 changed files with 23 additions and 2 deletions
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@ -7,6 +7,10 @@
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#include "expr-to-xml.hh"
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#include "expr-to-xml.hh"
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#include "nixexpr-ast.hh"
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#include "nixexpr-ast.hh"
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <algorithm>
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#include <algorithm>
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@ -739,7 +743,20 @@ struct FilterFromExpr : PathFilter
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bool operator () (const Path & path)
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bool operator () (const Path & path)
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{
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{
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Expr call = makeCall(filter, makePath(toATerm(path)));
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struct stat st;
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if (lstat(path.c_str(), &st))
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throw SysError(format("getting attributes of path `%1%'") % path);
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Expr call =
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makeCall(
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makeCall(filter, makePath(toATerm(path))),
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makeStr(
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S_ISREG(st.st_mode) ? "regular" :
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S_ISDIR(st.st_mode) ? "directory" :
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S_ISLNK(st.st_mode) ? "symlink" :
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"unknown" /* not supported, will fail! */
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));
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return evalBool(state, call);
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return evalBool(state, call);
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}
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}
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};
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};
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@ -3,5 +3,7 @@ derivation {
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system = "@system@";
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system = "@system@";
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builder = "@shell@";
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builder = "@shell@";
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args = ["-e" "-x" (builtins.toFile "builder" "PATH=@testPath@; ln -s $input $out")];
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args = ["-e" "-x" (builtins.toFile "builder" "PATH=@testPath@; ln -s $input $out")];
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input = builtins.filterSource (path: baseNameOf (toString path) != "foo") ./test-tmp/filterin;
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input =
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let filter = path: type: type != "symlink" && baseNameOf (toString path) != "foo";
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in builtins.filterSource filter ./test-tmp/filterin;
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}
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}
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@ -5,9 +5,11 @@ mkdir $TEST_ROOT/filterin
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mkdir $TEST_ROOT/filterin/foo
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mkdir $TEST_ROOT/filterin/foo
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touch $TEST_ROOT/filterin/foo/bar
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touch $TEST_ROOT/filterin/foo/bar
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touch $TEST_ROOT/filterin/xyzzy
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touch $TEST_ROOT/filterin/xyzzy
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ln -s xyzzy $TEST_ROOT/filterin/link
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$NIX_BIN_DIR/nix-build ./filter-source.nix -o $TEST_ROOT/filterout
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$NIX_BIN_DIR/nix-build ./filter-source.nix -o $TEST_ROOT/filterout
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set -x
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set -x
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test ! -e $TEST_ROOT/filterout/foo/bar
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test ! -e $TEST_ROOT/filterout/foo/bar
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test -e $TEST_ROOT/filterout/xyzzy
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test -e $TEST_ROOT/filterout/xyzzy
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test ! -L $TEST_ROOT/filterout/link
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