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* Nix now has three different formats for the log information it
writes to stderr: - `pretty': the old nested style (default) - `escapes': uses escape codes to indicate nesting and message level; can be processed using `log2xml' - `flat': just plain text, no nesting These can be set using `--log-type TYPE' or the NIX_LOG_TYPE environment variable.
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79bb0008ec
commit
777e13b94b
3 changed files with 52 additions and 7 deletions
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@ -18,6 +18,15 @@ void sigintHandler(int signo)
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}
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}
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void setLogType(string lt)
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{
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if (lt == "pretty") logType = ltPretty;
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else if (lt == "escapes") logType = ltEscapes;
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else if (lt == "flat") logType = ltFlat;
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else throw UsageError("unknown log type");
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}
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/* Initialize and reorder arguments, then call the actual argument
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/* Initialize and reorder arguments, then call the actual argument
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processor. */
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processor. */
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static void initAndRun(int argc, char * * argv)
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static void initAndRun(int argc, char * * argv)
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@ -44,6 +53,10 @@ static void initAndRun(int argc, char * * argv)
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if (sigaction(SIGINT, &act, &oact))
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if (sigaction(SIGINT, &act, &oact))
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throw SysError("installing handler for SIGINT");
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throw SysError("installing handler for SIGINT");
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/* Process the NIX_LOG_TYPE environment variable. */
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char * lt = getenv("NIX_LOG_TYPE");
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if (lt) setLogType(lt);
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/* Put the arguments in a vector. */
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/* Put the arguments in a vector. */
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Strings args, remaining;
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Strings args, remaining;
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while (argc--) args.push_back(*argv++);
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while (argc--) args.push_back(*argv++);
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@ -72,7 +85,11 @@ static void initAndRun(int argc, char * * argv)
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string arg = *i;
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string arg = *i;
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if (arg == "--verbose" || arg == "-v")
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if (arg == "--verbose" || arg == "-v")
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verbosity = (Verbosity) ((int) verbosity + 1);
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verbosity = (Verbosity) ((int) verbosity + 1);
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else if (arg == "--build-output" || arg == "-B")
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else if (arg == "--log-type") {
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++i;
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if (i == args.end()) throw UsageError("`--log-type' requires an argument");
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setLogType(*i);
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} else if (arg == "--build-output" || arg == "-B")
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buildVerbosity = lvlError; /* lowest */
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buildVerbosity = lvlError; /* lowest */
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else if (arg == "--help") {
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else if (arg == "--help") {
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printHelp();
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printHelp();
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@ -1,6 +1,7 @@
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#include <iostream>
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#include <iostream>
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#include <cerrno>
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#include <cerrno>
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#include <cstdio>
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#include <cstdio>
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#include <sstream>
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#include <sys/types.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/stat.h>
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@ -223,6 +224,7 @@ void writeStringToFile(const Path & path, const string & s)
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}
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}
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LogType logType = ltPretty;
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Verbosity verbosity = lvlError;
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Verbosity verbosity = lvlError;
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static int nestingLevel = 0;
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static int nestingLevel = 0;
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@ -236,13 +238,28 @@ Nest::Nest()
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Nest::~Nest()
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Nest::~Nest()
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{
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{
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if (nest) nestingLevel--;
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if (nest) {
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nestingLevel--;
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if (logType == ltEscapes)
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cerr << "\033[q";
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}
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}
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static string escVerbosity(Verbosity level)
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{
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int l = (int) level;
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ostringstream st;
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st << l;
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return st.str();
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}
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}
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void Nest::open(Verbosity level, const format & f)
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void Nest::open(Verbosity level, const format & f)
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{
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{
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if (level <= verbosity) {
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if (level <= verbosity) {
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if (logType == ltEscapes)
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cerr << "\033[" << escVerbosity(level) << "p";
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printMsg_(level, f);
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printMsg_(level, f);
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nest = true;
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nest = true;
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nestingLevel++;
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nestingLevel++;
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@ -254,10 +271,13 @@ void printMsg_(Verbosity level, const format & f)
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{
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{
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checkInterrupt();
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checkInterrupt();
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if (level > verbosity) return;
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if (level > verbosity) return;
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string spaces;
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string prefix;
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if (logType == ltPretty)
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for (int i = 0; i < nestingLevel; i++)
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for (int i = 0; i < nestingLevel; i++)
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spaces += "| ";
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prefix += "| ";
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cerr << format("%1%%2%\n") % spaces % f.str();
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else if (logType == ltEscapes && level != lvlInfo)
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prefix = "\033[" + escVerbosity(level) + "s";
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cerr << format("%1%%2%\n") % prefix % f.str();
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}
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}
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@ -100,6 +100,13 @@ void writeStringToFile(const Path & path, const string & s);
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/* Messages. */
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/* Messages. */
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typedef enum {
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ltPretty, /* nice, nested output */
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ltEscapes, /* nesting indicated using escape codes (for log2xml) */
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ltFlat /* no nesting */
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} LogType;
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typedef enum {
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typedef enum {
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lvlError,
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lvlError,
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lvlInfo,
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lvlInfo,
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@ -109,7 +116,8 @@ typedef enum {
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lvlVomit
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lvlVomit
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} Verbosity;
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} Verbosity;
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extern Verbosity verbosity; /* supress msgs > this */
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extern LogType logType;
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extern Verbosity verbosity; /* suppress msgs > this */
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class Nest
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class Nest
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{
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{
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