diff options
Diffstat (limited to 'cmdline')
| -rw-r--r-- | cmdline/apt-helper.cc | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/cmdline/apt-helper.cc b/cmdline/apt-helper.cc index 97a4342f5..3d6a692e0 100644 --- a/cmdline/apt-helper.cc +++ b/cmdline/apt-helper.cc @@ -10,6 +10,7 @@ #include <apt-pkg/acquire-item.h> #include <apt-pkg/acquire.h> #include <apt-pkg/cmndline.h> +#include <apt-pkg/cachefilter-patterns.h> #include <apt-pkg/configuration.h> #include <apt-pkg/error.h> #include <apt-pkg/fileutl.h> @@ -257,6 +258,35 @@ static bool DropPrivsAndRun(CommandLine &CmdL) /*{{{*/ return ExecWait(pid, CmdL.FileList[1]); } /*}}}*/ +static bool AnalyzePattern(CommandLine &CmdL) /*{{{*/ +{ + if (CmdL.FileSize() != 2) + return _error->Error("Expect one argument, a pattern"); + + try + { + auto top = APT::Internal::PatternTreeParser(CmdL.FileList[1]).parseTop(); + top->render(std::cout) << "\n"; + } + catch (APT::Internal::PatternTreeParser::Error &e) + { + std::stringstream ss; + ss << "input:" << e.location.start << "-" << e.location.end << ": error: " << e.message << "\n"; + ss << CmdL.FileList[1] << "\n"; + for (size_t i = 0; i < e.location.start; i++) + ss << " "; + for (size_t i = e.location.start; i < e.location.end; i++) + ss << "^"; + + ss << "\n"; + + _error->Error("%s", ss.str().c_str()); + return false; + } + + return true; +} + /*}}}*/ static bool ShowHelp(CommandLine &) /*{{{*/ { std::cout << @@ -278,6 +308,8 @@ static std::vector<aptDispatchWithHelp> GetCommands() /*{{{*/ {"auto-detect-proxy", &DoAutoDetectProxy, _("detect proxy using apt.conf")}, {"wait-online", &DoWaitOnline, _("wait for system to be online")}, {"drop-privs", &DropPrivsAndRun, _("drop privileges before running given command")}, + {"analyze-pattern", &AnalyzePattern, _("analyse a pattern")}, + {"analyse-pattern", &AnalyzePattern, nullptr}, {nullptr, nullptr, nullptr}}; } /*}}}*/ |