lix/src/nix/progress-bar.cc

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#include "progress-bar.hh"
#include "util.hh"
#include "sync.hh"
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#include "store-api.hh"
#include "names.hh"
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#include <atomic>
#include <map>
#include <thread>
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namespace nix {
static std::string getS(const std::vector<Logger::Field> & fields, size_t n)
{
assert(n < fields.size());
assert(fields[n].type == Logger::Field::tString);
return fields[n].s;
}
static uint64_t getI(const std::vector<Logger::Field> & fields, size_t n)
{
assert(n < fields.size());
assert(fields[n].type == Logger::Field::tInt);
return fields[n].i;
}
static std::string_view storePathToName(std::string_view path)
{
auto base = baseNameOf(path);
auto i = base.find('-');
return i == std::string::npos ? base.substr(0, 0) : base.substr(i + 1);
}
class ProgressBar : public Logger
{
private:
struct ActInfo
{
std::string s, lastLine, phase;
ActivityType type = actUnknown;
uint64_t done = 0;
uint64_t expected = 0;
uint64_t running = 0;
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uint64_t failed = 0;
std::map<ActivityType, uint64_t> expectedByType;
bool visible = true;
ActivityId parent;
std::optional<std::string> name;
};
struct ActivitiesByType
{
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std::map<ActivityId, std::list<ActInfo>::iterator> its;
uint64_t done = 0;
uint64_t expected = 0;
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uint64_t failed = 0;
};
struct State
{
std::list<ActInfo> activities;
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std::map<ActivityId, std::list<ActInfo>::iterator> its;
std::map<ActivityType, ActivitiesByType> activitiesByType;
uint64_t filesLinked = 0, bytesLinked = 0;
uint64_t corruptedPaths = 0, untrustedPaths = 0;
bool active = true;
bool haveUpdate = true;
};
Sync<State> state_;
std::thread updateThread;
std::condition_variable quitCV, updateCV;
bool printBuildLogs;
bool isTTY;
public:
ProgressBar(bool printBuildLogs, bool isTTY)
: printBuildLogs(printBuildLogs)
, isTTY(isTTY)
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{
state_.lock()->active = isTTY;
updateThread = std::thread([&]() {
auto state(state_.lock());
while (state->active) {
if (!state->haveUpdate)
state.wait(updateCV);
draw(*state);
state.wait_for(quitCV, std::chrono::milliseconds(50));
}
});
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}
~ProgressBar()
{
stop();
updateThread.join();
}
void stop()
{
auto state(state_.lock());
if (!state->active) return;
state->active = false;
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std::string status = getStatus(*state);
writeToStderr("\r\e[K");
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if (status != "")
writeToStderr("[" + status + "]\n");
updateCV.notify_one();
quitCV.notify_one();
}
void log(Verbosity lvl, const FormatOrString & fs) override
{
auto state(state_.lock());
log(*state, lvl, fs.s);
}
void log(State & state, Verbosity lvl, const std::string & s)
{
if (state.active) {
writeToStderr("\r\e[K" + filterANSIEscapes(s, !isTTY) + ANSI_NORMAL "\n");
draw(state);
} else {
auto s2 = s + ANSI_NORMAL "\n";
if (!isTTY) s2 = filterANSIEscapes(s2, true);
writeToStderr(s2);
}
}
void startActivity(ActivityId act, Verbosity lvl, ActivityType type,
const std::string & s, const Fields & fields, ActivityId parent) override
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{
auto state(state_.lock());
if (lvl <= verbosity && !s.empty())
log(*state, lvl, s + "...");
state->activities.emplace_back(ActInfo());
auto i = std::prev(state->activities.end());
i->s = s;
i->type = type;
i->parent = parent;
state->its.emplace(act, i);
state->activitiesByType[type].its.emplace(act, i);
if (type == actBuild) {
auto name = storePathToName(getS(fields, 0));
if (hasSuffix(name, ".drv"))
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name = name.substr(0, name.size() - 4);
i->s = fmt("building " ANSI_BOLD "%s" ANSI_NORMAL, name);
auto machineName = getS(fields, 1);
if (machineName != "")
i->s += fmt(" on " ANSI_BOLD "%s" ANSI_NORMAL, machineName);
auto curRound = getI(fields, 2);
auto nrRounds = getI(fields, 3);
if (nrRounds != 1)
i->s += fmt(" (round %d/%d)", curRound, nrRounds);
i->name = DrvName(name).name;
}
if (type == actSubstitute) {
auto name = storePathToName(getS(fields, 0));
auto sub = getS(fields, 1);
i->s = fmt(
hasPrefix(sub, "local")
? "copying " ANSI_BOLD "%s" ANSI_NORMAL " from %s"
: "fetching " ANSI_BOLD "%s" ANSI_NORMAL " from %s",
name, sub);
}
Add a post-build-hook Passing `--post-build-hook /foo/bar` to a nix-* command will cause `/foo/bar` to be executed after each build with the following environment variables set: DRV_PATH=/nix/store/drv-that-has-been-built.drv OUT_PATHS=/nix/store/...build /nix/store/...build-bin /nix/store/...build-dev This can be useful in particular to upload all the builded artifacts to the cache (including the ones that don't appear in the runtime closure of the final derivation or are built because of IFD). This new feature prints the stderr/stdout output to the `nix-build` and `nix build` client, and the output is printed in a Nix 2 compatible format: [nix]$ ./inst/bin/nix-build ./test.nix these derivations will be built: /nix/store/ishzj9ni17xq4hgrjvlyjkfvm00b0ch9-my-example-derivation.drv building '/nix/store/ishzj9ni17xq4hgrjvlyjkfvm00b0ch9-my-example-derivation.drv'... hello! bye! running post-build-hook '/home/grahamc/projects/github.com/NixOS/nix/post-hook.sh'... post-build-hook: + sleep 1 post-build-hook: + echo 'Signing paths' /nix/store/qr213vjmibrqwnyp5fw678y7whbkqyny-my-example-derivation post-build-hook: Signing paths /nix/store/qr213vjmibrqwnyp5fw678y7whbkqyny-my-example-derivation post-build-hook: + sleep 1 post-build-hook: + echo 'Uploading paths' /nix/store/qr213vjmibrqwnyp5fw678y7whbkqyny-my-example-derivation post-build-hook: Uploading paths /nix/store/qr213vjmibrqwnyp5fw678y7whbkqyny-my-example-derivation post-build-hook: + sleep 1 post-build-hook: + printf 'very important stuff' /nix/store/qr213vjmibrqwnyp5fw678y7whbkqyny-my-example-derivation [nix-shell:~/projects/github.com/NixOS/nix]$ ./inst/bin/nix build -L -f ./test.nix my-example-derivation> hello! my-example-derivation> bye! my-example-derivation (post)> + sleep 1 my-example-derivation (post)> + echo 'Signing paths' /nix/store/c263gzj2kb2609mz8wrbmh53l14wzmfs-my-example-derivation my-example-derivation (post)> Signing paths /nix/store/c263gzj2kb2609mz8wrbmh53l14wzmfs-my-example-derivation my-example-derivation (post)> + sleep 1 my-example-derivation (post)> + echo 'Uploading paths' /nix/store/c263gzj2kb2609mz8wrbmh53l14wzmfs-my-example-derivation my-example-derivation (post)> Uploading paths /nix/store/c263gzj2kb2609mz8wrbmh53l14wzmfs-my-example-derivation my-example-derivation (post)> + sleep 1 my-example-derivation (post)> + printf 'very important stuff' [1 built, 0.0 MiB DL] Co-authored-by: Graham Christensen <graham@grahamc.com> Co-authored-by: Eelco Dolstra <edolstra@gmail.com>
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if (type == actPostBuildHook) {
auto name = storePathToName(getS(fields, 0));
if (hasSuffix(name, ".drv"))
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name = name.substr(0, name.size() - 4);
Add a post-build-hook Passing `--post-build-hook /foo/bar` to a nix-* command will cause `/foo/bar` to be executed after each build with the following environment variables set: DRV_PATH=/nix/store/drv-that-has-been-built.drv OUT_PATHS=/nix/store/...build /nix/store/...build-bin /nix/store/...build-dev This can be useful in particular to upload all the builded artifacts to the cache (including the ones that don't appear in the runtime closure of the final derivation or are built because of IFD). This new feature prints the stderr/stdout output to the `nix-build` and `nix build` client, and the output is printed in a Nix 2 compatible format: [nix]$ ./inst/bin/nix-build ./test.nix these derivations will be built: /nix/store/ishzj9ni17xq4hgrjvlyjkfvm00b0ch9-my-example-derivation.drv building '/nix/store/ishzj9ni17xq4hgrjvlyjkfvm00b0ch9-my-example-derivation.drv'... hello! bye! running post-build-hook '/home/grahamc/projects/github.com/NixOS/nix/post-hook.sh'... post-build-hook: + sleep 1 post-build-hook: + echo 'Signing paths' /nix/store/qr213vjmibrqwnyp5fw678y7whbkqyny-my-example-derivation post-build-hook: Signing paths /nix/store/qr213vjmibrqwnyp5fw678y7whbkqyny-my-example-derivation post-build-hook: + sleep 1 post-build-hook: + echo 'Uploading paths' /nix/store/qr213vjmibrqwnyp5fw678y7whbkqyny-my-example-derivation post-build-hook: Uploading paths /nix/store/qr213vjmibrqwnyp5fw678y7whbkqyny-my-example-derivation post-build-hook: + sleep 1 post-build-hook: + printf 'very important stuff' /nix/store/qr213vjmibrqwnyp5fw678y7whbkqyny-my-example-derivation [nix-shell:~/projects/github.com/NixOS/nix]$ ./inst/bin/nix build -L -f ./test.nix my-example-derivation> hello! my-example-derivation> bye! my-example-derivation (post)> + sleep 1 my-example-derivation (post)> + echo 'Signing paths' /nix/store/c263gzj2kb2609mz8wrbmh53l14wzmfs-my-example-derivation my-example-derivation (post)> Signing paths /nix/store/c263gzj2kb2609mz8wrbmh53l14wzmfs-my-example-derivation my-example-derivation (post)> + sleep 1 my-example-derivation (post)> + echo 'Uploading paths' /nix/store/c263gzj2kb2609mz8wrbmh53l14wzmfs-my-example-derivation my-example-derivation (post)> Uploading paths /nix/store/c263gzj2kb2609mz8wrbmh53l14wzmfs-my-example-derivation my-example-derivation (post)> + sleep 1 my-example-derivation (post)> + printf 'very important stuff' [1 built, 0.0 MiB DL] Co-authored-by: Graham Christensen <graham@grahamc.com> Co-authored-by: Eelco Dolstra <edolstra@gmail.com>
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i->s = fmt("post-build " ANSI_BOLD "%s" ANSI_NORMAL, name);
i->name = DrvName(name).name;
}
if (type == actQueryPathInfo) {
auto name = storePathToName(getS(fields, 0));
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i->s = fmt("querying " ANSI_BOLD "%s" ANSI_NORMAL " on %s", name, getS(fields, 1));
}
if ((type == actDownload && hasAncestor(*state, actCopyPath, parent))
|| (type == actDownload && hasAncestor(*state, actQueryPathInfo, parent))
|| (type == actCopyPath && hasAncestor(*state, actSubstitute, parent)))
i->visible = false;
update(*state);
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}
/* Check whether an activity has an ancestore with the specified
type. */
bool hasAncestor(State & state, ActivityType type, ActivityId act)
{
while (act != 0) {
auto i = state.its.find(act);
if (i == state.its.end()) break;
if (i->second->type == type) return true;
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act = i->second->parent;
}
return false;
}
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void stopActivity(ActivityId act) override
{
auto state(state_.lock());
auto i = state->its.find(act);
if (i != state->its.end()) {
auto & actByType = state->activitiesByType[i->second->type];
actByType.done += i->second->done;
actByType.failed += i->second->failed;
for (auto & j : i->second->expectedByType)
state->activitiesByType[j.first].expected -= j.second;
actByType.its.erase(act);
state->activities.erase(i->second);
state->its.erase(i);
}
update(*state);
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}
void result(ActivityId act, ResultType type, const std::vector<Field> & fields) override
{
auto state(state_.lock());
if (type == resFileLinked) {
state->filesLinked++;
state->bytesLinked += getI(fields, 0);
update(*state);
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}
Add a post-build-hook Passing `--post-build-hook /foo/bar` to a nix-* command will cause `/foo/bar` to be executed after each build with the following environment variables set: DRV_PATH=/nix/store/drv-that-has-been-built.drv OUT_PATHS=/nix/store/...build /nix/store/...build-bin /nix/store/...build-dev This can be useful in particular to upload all the builded artifacts to the cache (including the ones that don't appear in the runtime closure of the final derivation or are built because of IFD). This new feature prints the stderr/stdout output to the `nix-build` and `nix build` client, and the output is printed in a Nix 2 compatible format: [nix]$ ./inst/bin/nix-build ./test.nix these derivations will be built: /nix/store/ishzj9ni17xq4hgrjvlyjkfvm00b0ch9-my-example-derivation.drv building '/nix/store/ishzj9ni17xq4hgrjvlyjkfvm00b0ch9-my-example-derivation.drv'... hello! bye! running post-build-hook '/home/grahamc/projects/github.com/NixOS/nix/post-hook.sh'... post-build-hook: + sleep 1 post-build-hook: + echo 'Signing paths' /nix/store/qr213vjmibrqwnyp5fw678y7whbkqyny-my-example-derivation post-build-hook: Signing paths /nix/store/qr213vjmibrqwnyp5fw678y7whbkqyny-my-example-derivation post-build-hook: + sleep 1 post-build-hook: + echo 'Uploading paths' /nix/store/qr213vjmibrqwnyp5fw678y7whbkqyny-my-example-derivation post-build-hook: Uploading paths /nix/store/qr213vjmibrqwnyp5fw678y7whbkqyny-my-example-derivation post-build-hook: + sleep 1 post-build-hook: + printf 'very important stuff' /nix/store/qr213vjmibrqwnyp5fw678y7whbkqyny-my-example-derivation [nix-shell:~/projects/github.com/NixOS/nix]$ ./inst/bin/nix build -L -f ./test.nix my-example-derivation> hello! my-example-derivation> bye! my-example-derivation (post)> + sleep 1 my-example-derivation (post)> + echo 'Signing paths' /nix/store/c263gzj2kb2609mz8wrbmh53l14wzmfs-my-example-derivation my-example-derivation (post)> Signing paths /nix/store/c263gzj2kb2609mz8wrbmh53l14wzmfs-my-example-derivation my-example-derivation (post)> + sleep 1 my-example-derivation (post)> + echo 'Uploading paths' /nix/store/c263gzj2kb2609mz8wrbmh53l14wzmfs-my-example-derivation my-example-derivation (post)> Uploading paths /nix/store/c263gzj2kb2609mz8wrbmh53l14wzmfs-my-example-derivation my-example-derivation (post)> + sleep 1 my-example-derivation (post)> + printf 'very important stuff' [1 built, 0.0 MiB DL] Co-authored-by: Graham Christensen <graham@grahamc.com> Co-authored-by: Eelco Dolstra <edolstra@gmail.com>
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else if (type == resBuildLogLine || type == resPostBuildLogLine) {
auto lastLine = trim(getS(fields, 0));
if (!lastLine.empty()) {
auto i = state->its.find(act);
assert(i != state->its.end());
ActInfo info = *i->second;
if (printBuildLogs) {
Add a post-build-hook Passing `--post-build-hook /foo/bar` to a nix-* command will cause `/foo/bar` to be executed after each build with the following environment variables set: DRV_PATH=/nix/store/drv-that-has-been-built.drv OUT_PATHS=/nix/store/...build /nix/store/...build-bin /nix/store/...build-dev This can be useful in particular to upload all the builded artifacts to the cache (including the ones that don't appear in the runtime closure of the final derivation or are built because of IFD). This new feature prints the stderr/stdout output to the `nix-build` and `nix build` client, and the output is printed in a Nix 2 compatible format: [nix]$ ./inst/bin/nix-build ./test.nix these derivations will be built: /nix/store/ishzj9ni17xq4hgrjvlyjkfvm00b0ch9-my-example-derivation.drv building '/nix/store/ishzj9ni17xq4hgrjvlyjkfvm00b0ch9-my-example-derivation.drv'... hello! bye! running post-build-hook '/home/grahamc/projects/github.com/NixOS/nix/post-hook.sh'... post-build-hook: + sleep 1 post-build-hook: + echo 'Signing paths' /nix/store/qr213vjmibrqwnyp5fw678y7whbkqyny-my-example-derivation post-build-hook: Signing paths /nix/store/qr213vjmibrqwnyp5fw678y7whbkqyny-my-example-derivation post-build-hook: + sleep 1 post-build-hook: + echo 'Uploading paths' /nix/store/qr213vjmibrqwnyp5fw678y7whbkqyny-my-example-derivation post-build-hook: Uploading paths /nix/store/qr213vjmibrqwnyp5fw678y7whbkqyny-my-example-derivation post-build-hook: + sleep 1 post-build-hook: + printf 'very important stuff' /nix/store/qr213vjmibrqwnyp5fw678y7whbkqyny-my-example-derivation [nix-shell:~/projects/github.com/NixOS/nix]$ ./inst/bin/nix build -L -f ./test.nix my-example-derivation> hello! my-example-derivation> bye! my-example-derivation (post)> + sleep 1 my-example-derivation (post)> + echo 'Signing paths' /nix/store/c263gzj2kb2609mz8wrbmh53l14wzmfs-my-example-derivation my-example-derivation (post)> Signing paths /nix/store/c263gzj2kb2609mz8wrbmh53l14wzmfs-my-example-derivation my-example-derivation (post)> + sleep 1 my-example-derivation (post)> + echo 'Uploading paths' /nix/store/c263gzj2kb2609mz8wrbmh53l14wzmfs-my-example-derivation my-example-derivation (post)> Uploading paths /nix/store/c263gzj2kb2609mz8wrbmh53l14wzmfs-my-example-derivation my-example-derivation (post)> + sleep 1 my-example-derivation (post)> + printf 'very important stuff' [1 built, 0.0 MiB DL] Co-authored-by: Graham Christensen <graham@grahamc.com> Co-authored-by: Eelco Dolstra <edolstra@gmail.com>
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auto suffix = "> ";
if (type == resPostBuildLogLine) {
suffix = " (post)> ";
}
log(*state, lvlInfo, ANSI_FAINT + info.name.value_or("unnamed") + suffix + ANSI_NORMAL + lastLine);
} else {
state->activities.erase(i->second);
info.lastLine = lastLine;
state->activities.emplace_back(info);
i->second = std::prev(state->activities.end());
update(*state);
}
}
}
else if (type == resUntrustedPath) {
state->untrustedPaths++;
update(*state);
}
else if (type == resCorruptedPath) {
state->corruptedPaths++;
update(*state);
}
else if (type == resSetPhase) {
auto i = state->its.find(act);
assert(i != state->its.end());
i->second->phase = getS(fields, 0);
update(*state);
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}
else if (type == resProgress) {
auto i = state->its.find(act);
assert(i != state->its.end());
ActInfo & actInfo = *i->second;
actInfo.done = getI(fields, 0);
actInfo.expected = getI(fields, 1);
actInfo.running = getI(fields, 2);
actInfo.failed = getI(fields, 3);
update(*state);
}
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else if (type == resSetExpected) {
auto i = state->its.find(act);
assert(i != state->its.end());
ActInfo & actInfo = *i->second;
auto type = (ActivityType) getI(fields, 0);
auto & j = actInfo.expectedByType[type];
state->activitiesByType[type].expected -= j;
j = getI(fields, 1);
state->activitiesByType[type].expected += j;
update(*state);
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}
}
void update(State & state)
{
state.haveUpdate = true;
updateCV.notify_one();
}
void draw(State & state)
{
state.haveUpdate = false;
if (!state.active) return;
std::string line;
std::string status = getStatus(state);
if (!status.empty()) {
line += '[';
line += status;
line += "]";
}
if (!state.activities.empty()) {
if (!status.empty()) line += " ";
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auto i = state.activities.rbegin();
while (i != state.activities.rend() && (!i->visible || (i->s.empty() && i->lastLine.empty())))
++i;
if (i != state.activities.rend()) {
line += i->s;
if (!i->phase.empty()) {
line += " (";
line += i->phase;
line += ")";
}
if (!i->lastLine.empty()) {
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if (!i->s.empty()) line += ": ";
line += i->lastLine;
}
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}
}
auto width = getWindowSize().second;
if (width <= 0) width = std::numeric_limits<decltype(width)>::max();
writeToStderr("\r" + filterANSIEscapes(line, false, width) + "\e[K");
}
std::string getStatus(State & state)
{
auto MiB = 1024.0 * 1024.0;
std::string res;
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auto renderActivity = [&](ActivityType type, const std::string & itemFmt, const std::string & numberFmt = "%d", double unit = 1) {
auto & act = state.activitiesByType[type];
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uint64_t done = act.done, expected = act.done, running = 0, failed = act.failed;
for (auto & j : act.its) {
done += j.second->done;
expected += j.second->expected;
running += j.second->running;
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failed += j.second->failed;
}
expected = std::max(expected, act.expected);
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std::string s;
if (running || done || expected || failed) {
if (running)
if (expected != 0)
s = fmt(ANSI_BLUE + numberFmt + ANSI_NORMAL "/" ANSI_GREEN + numberFmt + ANSI_NORMAL "/" + numberFmt,
running / unit, done / unit, expected / unit);
else
s = fmt(ANSI_BLUE + numberFmt + ANSI_NORMAL "/" ANSI_GREEN + numberFmt + ANSI_NORMAL,
running / unit, done / unit);
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else if (expected != done)
if (expected != 0)
s = fmt(ANSI_GREEN + numberFmt + ANSI_NORMAL "/" + numberFmt,
done / unit, expected / unit);
else
s = fmt(ANSI_GREEN + numberFmt + ANSI_NORMAL, done / unit);
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else
s = fmt(done ? ANSI_GREEN + numberFmt + ANSI_NORMAL : numberFmt, done / unit);
s = fmt(itemFmt, s);
if (failed)
s += fmt(" (" ANSI_RED "%d failed" ANSI_NORMAL ")", failed / unit);
}
return s;
};
auto showActivity = [&](ActivityType type, const std::string & itemFmt, const std::string & numberFmt = "%d", double unit = 1) {
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auto s = renderActivity(type, itemFmt, numberFmt, unit);
if (s.empty()) return;
if (!res.empty()) res += ", ";
res += s;
};
showActivity(actBuilds, "%s built");
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auto s1 = renderActivity(actCopyPaths, "%s copied");
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auto s2 = renderActivity(actCopyPath, "%s MiB", "%.1f", MiB);
if (!s1.empty() || !s2.empty()) {
if (!res.empty()) res += ", ";
if (s1.empty()) res += "0 copied"; else res += s1;
if (!s2.empty()) { res += " ("; res += s2; res += ')'; }
}
showActivity(actDownload, "%s MiB DL", "%.1f", MiB);
{
auto s = renderActivity(actOptimiseStore, "%s paths optimised");
if (s != "") {
s += fmt(", %.1f MiB / %d inodes freed", state.bytesLinked / MiB, state.filesLinked);
if (!res.empty()) res += ", ";
res += s;
}
}
// FIXME: don't show "done" paths in green.
showActivity(actVerifyPaths, "%s paths verified");
if (state.corruptedPaths) {
if (!res.empty()) res += ", ";
res += fmt(ANSI_RED "%d corrupted" ANSI_NORMAL, state.corruptedPaths);
}
if (state.untrustedPaths) {
if (!res.empty()) res += ", ";
res += fmt(ANSI_RED "%d untrusted" ANSI_NORMAL, state.untrustedPaths);
}
return res;
}
};
void startProgressBar(bool printBuildLogs)
{
logger = new ProgressBar(
printBuildLogs,
isatty(STDERR_FILENO) && getEnv("TERM").value_or("dumb") != "dumb");
}
void stopProgressBar()
{
auto progressBar = dynamic_cast<ProgressBar *>(logger);
if (progressBar) progressBar->stop();
}
}