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author | B. Stack <bgstack15@gmail.com> | 2023-02-21 12:13:36 -0500 |
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committer | B. Stack <bgstack15@gmail.com> | 2023-02-21 12:13:36 -0500 |
commit | 5a6ed4e8eadf3af3d141b246f124d67b62a1357c (patch) | |
tree | 4e49ae80efbe181c46110867fe7cf703efd3fcf5 /zen/resolve_path.cpp | |
parent | argon2 copyright notice updated (diff) | |
download | FreeFileSync-5a6ed4e8eadf3af3d141b246f124d67b62a1357c.tar.gz FreeFileSync-5a6ed4e8eadf3af3d141b246f124d67b62a1357c.tar.bz2 FreeFileSync-5a6ed4e8eadf3af3d141b246f124d67b62a1357c.zip |
add upstream 12.112.1
Diffstat (limited to 'zen/resolve_path.cpp')
-rw-r--r-- | zen/resolve_path.cpp | 43 |
1 files changed, 5 insertions, 38 deletions
diff --git a/zen/resolve_path.cpp b/zen/resolve_path.cpp index 8b81e184..daaf91ff 100644 --- a/zen/resolve_path.cpp +++ b/zen/resolve_path.cpp @@ -10,48 +10,15 @@ #include "file_access.h" #include <zen/sys_info.h> - // #include <stdlib.h> //getenv() - #include <unistd.h> //getuid() - #include <pwd.h> //getpwuid_r() + #include <unistd.h> //getcwd() using namespace zen; namespace { -std::optional<Zstring> getEnvironmentVar(const Zchar* name) -{ - assert(runningOnMainThread()); //getenv() is not thread-safe! - - const char* buffer = ::getenv(name); //no ownership transfer + no extended error reporting - if (!buffer) - return {}; - Zstring value(buffer); - - //some postprocessing: - trim(value); //remove leading, trailing blanks - - //remove leading, trailing double-quotes - if (startsWith(value, Zstr('"')) && - endsWith (value, Zstr('"')) && - value.length() >= 2) - value = Zstring(value.c_str() + 1, value.length() - 2); - - return value; -} - - Zstring resolveRelativePath(const Zstring& relativePath) { - assert(runningOnMainThread()); - /* MSDN: "Multithreaded applications and shared library code should not use the GetFullPathName function - and should avoid using relative path names. The current directory state written by the - SetCurrentDirectory function is stored as a global variable in each process, - therefore multithreaded applications cannot reliably use this value without possible data corruption from other threads, [...]" - - => Just plain wrong, there is no data corruption. What MSDN really means: GetFullPathName() is *perfectly* thread-safe, but depends - on the current directory, which is a process-scope global: https://devblogs.microsoft.com/oldnewthing/20210816-00/?p=105562 */ - if (relativePath.empty()) return relativePath; @@ -99,7 +66,7 @@ Zstring resolveRelativePath(const Zstring& relativePath) //returns value if resolved -std::optional<Zstring> tryResolveMacro(const Zstring& macro) //macro without %-characters +std::optional<Zstring> tryResolveMacro(const ZstringView macro) //macro without %-characters { Zstring timeStr; auto resolveTimePhrase = [&](const Zchar* phrase, const Zchar* format) -> bool @@ -142,7 +109,7 @@ std::optional<Zstring> tryResolveMacro(const Zstring& macro) //macro without %-c } //try to resolve as environment variables - if (std::optional<Zstring> value = getEnvironmentVar(macro.c_str())) + if (std::optional<Zstring> value = getEnvironmentVar(macro)) return *value; return {}; @@ -201,14 +168,14 @@ std::vector<Zstring> zen::getPathPhraseAliases(const Zstring& itemPath) { //environment variables: C:\Users\<user> -> %UserProfile% - auto substByMacro = [&](const Zchar* macroName, const Zstring& macroPath) + auto substByMacro = [&](const ZstringView macroName, const Zstring& macroPath) { //should use a replaceCpy() that considers "local path" case-sensitivity (if only we had one...) if (contains(itemPath, macroPath)) pathAliases.push_back(makePathPhrase(replaceCpyAsciiNoCase(itemPath, macroPath, Zstring() + MACRO_SEP + macroName + MACRO_SEP))); }; - for (const Zchar* envName : + for (const ZstringView envName : { "HOME", //Linux: /home/<user> Mac: /Users/<user> //"USER", -> any benefit? |