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module merge;
import std.stdio;
import std.string;
import std.array;
import std.format;
import std.typecons;
import std.file;
import std.regex;
import conda;
auto RE_COMMENT = regex(r"[;#]");
auto RE_DMFILE = regex(r"^(?P<name>[A-z\-_l]+)(?:[=<>]+)?(?P<version>[A-z0-9. ]+)?");
auto RE_DMFILE_INVALID_VERSION = regex(r"[ !@#$%^&\*\(\)\-_]+");
auto RE_DELIVERY_NAME = regex(r"(?P<name>.*)[-_](?P<version>.*)[-_]py(?P<python_version>\d+)[-_.](?P<iteration>\d+)[-_.](?P<ext>.*)");
string safe_spec(string s) {
return "'" ~ s ~ "'";
}
string safe_install(string[] specs) {
string[] result;
foreach (record; specs) {
result ~= safe_spec(record);
}
return result.join(" ");
}
string[string][] dmfile(string filename) {
string[string][] results;
foreach (line; File(filename).byLine()) {
string[string] pkg;
line = strip(line);
auto has_comment = matchFirst(line, RE_COMMENT);
if (!has_comment.empty) { line = strip(has_comment.pre()); }
if (line.empty) { continue; }
auto record = matchFirst(line, RE_DMFILE);
writefln("-> package: %-10s :: version: %-10s", record["name"],
!record["version"].empty ? record["version"] : "none");
pkg["name"] = record["name"].dup;
pkg["version"] = record["version"].dup;
pkg["fullspec"] = record.hit.dup;
results ~= pkg;
}
return results;
}
bool env_combine(ref Conda conda, string name, string specfile, string mergefile) {
if (indexOf(specfile, "://", 0) < 0 && !specfile.exists) {
throw new Exception(specfile ~ " does not exist");
} else if (!mergefile.exists) {
throw new Exception(mergefile ~ " does not exist");
}
int retval = 0;
string[] specs;
auto merge_data = dmfile(mergefile);
foreach (record; merge_data) {
specs ~= record["fullspec"];
}
retval = conda.run("create -n "
~ name
~ " --file "
~ specfile);
if (retval) {
return false;
}
conda.activate(name);
retval = conda.run("install "
~ conda.multiarg("-c", conda.channels)
~ " "
~ safe_install(specs));
if (retval) {
return false;
}
return true;
}
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