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	Implement text path trimming for shorter paths.
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					 3 changed files with 53 additions and 1 deletions
				
			
		|  | @ -14,8 +14,33 @@ | ||||||
| #include "common/logging/log.h" | #include "common/logging/log.h" | ||||||
| #include "common/logging/text_formatter.h" | #include "common/logging/text_formatter.h" | ||||||
| 
 | 
 | ||||||
|  | #include "common/string_util.h" | ||||||
|  | 
 | ||||||
| namespace Log { | namespace Log { | ||||||
| 
 | 
 | ||||||
|  | // TODO(bunnei): This should be moved to a generic path manipulation library
 | ||||||
|  | const char* TrimSourcePath(const char* path, const char* root) { | ||||||
|  |     const char* p = path; | ||||||
|  | 
 | ||||||
|  |     while (*p != '\0') { | ||||||
|  |         const char* next_slash = p; | ||||||
|  |         while (*next_slash != '\0' && *next_slash != '/' && *next_slash != '\\') { | ||||||
|  |             ++next_slash; | ||||||
|  |         } | ||||||
|  | 
 | ||||||
|  |         bool is_src = Common::ComparePartialString(p, next_slash, root); | ||||||
|  |         p = next_slash; | ||||||
|  | 
 | ||||||
|  |         if (*p != '\0') { | ||||||
|  |             ++p; | ||||||
|  |         } | ||||||
|  |         if (is_src) { | ||||||
|  |             path = p; | ||||||
|  |         } | ||||||
|  |     } | ||||||
|  |     return path; | ||||||
|  | } | ||||||
|  | 
 | ||||||
| void FormatLogMessage(const Entry& entry, char* out_text, size_t text_len) { | void FormatLogMessage(const Entry& entry, char* out_text, size_t text_len) { | ||||||
|     unsigned int time_seconds    = static_cast<unsigned int>(entry.timestamp.count() / 1000000); |     unsigned int time_seconds    = static_cast<unsigned int>(entry.timestamp.count() / 1000000); | ||||||
|     unsigned int time_fractional = static_cast<unsigned int>(entry.timestamp.count() % 1000000); |     unsigned int time_fractional = static_cast<unsigned int>(entry.timestamp.count() % 1000000); | ||||||
|  | @ -25,7 +50,7 @@ void FormatLogMessage(const Entry& entry, char* out_text, size_t text_len) { | ||||||
| 
 | 
 | ||||||
|     snprintf(out_text, text_len, "[%4u.%06u] %s <%s> %s: %s", |     snprintf(out_text, text_len, "[%4u.%06u] %s <%s> %s: %s", | ||||||
|         time_seconds, time_fractional, class_name, level_name, |         time_seconds, time_fractional, class_name, level_name, | ||||||
|         entry.location.c_str(), entry.message.c_str()); |         TrimSourcePath(entry.location.c_str()), entry.message.c_str()); | ||||||
| } | } | ||||||
| 
 | 
 | ||||||
| static void ChangeConsoleColor(Level level) { | static void ChangeConsoleColor(Level level) { | ||||||
|  |  | ||||||
|  | @ -12,6 +12,18 @@ namespace Log { | ||||||
| class Logger; | class Logger; | ||||||
| struct Entry; | struct Entry; | ||||||
| 
 | 
 | ||||||
|  | /**
 | ||||||
|  |  * Attempts to trim an arbitrary prefix from `path`, leaving only the part starting at `root`. It's | ||||||
|  |  * intended to be used to strip a system-specific build directory from the `__FILE__` macro, | ||||||
|  |  * leaving only the path relative to the sources root. | ||||||
|  |  * | ||||||
|  |  * @param path The input file path as a null-terminated string | ||||||
|  |  * @param root The name of the root source directory as a null-terminated string. Path up to and | ||||||
|  |  *             including the last occurence of this name will be stripped | ||||||
|  |  * @return A pointer to the same string passed as `path`, but starting at the trimmed portion | ||||||
|  |  */ | ||||||
|  | const char* TrimSourcePath(const char* path, const char* root = "src"); | ||||||
|  | 
 | ||||||
| /// Formats a log entry into the provided text buffer.
 | /// Formats a log entry into the provided text buffer.
 | ||||||
| void FormatLogMessage(const Entry& entry, char* out_text, size_t text_len); | void FormatLogMessage(const Entry& entry, char* out_text, size_t text_len); | ||||||
| /// Formats and prints a log entry to stderr.
 | /// Formats and prints a log entry to stderr.
 | ||||||
|  |  | ||||||
|  | @ -115,4 +115,19 @@ inline std::string UTF8ToTStr(const std::string& str) | ||||||
| 
 | 
 | ||||||
| #endif | #endif | ||||||
| 
 | 
 | ||||||
|  | /**
 | ||||||
|  |  * Compares the string defined by the range [`begin`, `end`) to the null-terminated C-string | ||||||
|  |  * `other` for equality. | ||||||
|  |  */ | ||||||
|  | template <typename InIt> | ||||||
|  | bool ComparePartialString(InIt begin, InIt end, const char* other) { | ||||||
|  |     for (; begin != end && *other != '\0'; ++begin, ++other) { | ||||||
|  |         if (*begin != *other) { | ||||||
|  |             return false; | ||||||
|  |         } | ||||||
|  |     } | ||||||
|  |     // Only return true if both strings finished at the same point
 | ||||||
|  |     return (begin == end) == (*other == '\0'); | ||||||
|  | } | ||||||
|  | 
 | ||||||
| } | } | ||||||
|  |  | ||||||
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