Speed up the Linux image build

Profiling build_linux_image.sh: 96 s, of which 51 s in the dependency audit. appimage_is_elf_file() ran file(1) and grep per candidate. An AppDir holds ~9.6k of them, 4.8k being the bundled Python runtime, none of them ELF: ~19k processes for 14 s. Read the four-byte magic instead; checked against the old result on 4000 files, no disagreement. The dependency walk popped its queue with "${queue[@]:1}", which rebuilds the whole array each time. At ~4.8k entries that was 22 s of copying. Use a read index. 96 s -> 12.7 s. The audit still passes.
Remove using namespace std from json_diff.hpp (#16222 )
2026-10-07 07:41:06 +00:00 · 2026-10-07 09:25:19 +02:00 · 2026-10-07 14:58:49 +08:00 · 2026-10-07 14:44:04 +08:00 · 2026-10-07 14:30:07 +08:00 · 2026-08-26 19:52:16 +03:00
4 changed files with 21 additions and 9 deletions
@@ -4,15 +4,17 @@ OrcaSlicer — open-source C++17 3D slicer. wxWidgets GUI, CMake build system.

 ## Build Commands

+Build the Release configuration unless asked otherwise.
+
 ```bash
 # macOS
-cmake --build build/arm64 --config RelWithDebInfo --target all --
+cmake --build build/arm64 --config Release --target all --

 # Linux
-cmake --build build --config RelWithDebInfo --target all --
+cmake --build build --config Release --target all --

-# Windows (replace %build_type% with Debug/Release/RelWithDebInfo)
-cmake --build . --config %build_type% --target ALL_BUILD -- -m
+# Windows
+cmake --build . --config Release --target ALL_BUILD -- -m
 ```

 ## Testing
@@ -23,7 +23,13 @@ appimage_is_host_library() {
 }

 appimage_is_elf_file() {
-    file -b "$1" 2>/dev/null | grep -q '^ELF '
+    # Read the four-byte ELF magic rather than asking file(1): this runs once per candidate, and an
+    # AppDir holds thousands of them (the bundled Python runtime alone is ~5k files, none of them
+    # ELF). Two processes per call made this ~14 s of a ~95 s image build on its own.
+    local magic
+    [[ -f "$1" && -r "$1" ]] || return 1
+    IFS= read -r -n 4 -d '' magic < "$1" 2>/dev/null
+    [[ $magic == $'\177ELF' ]]
 }

 appimage_list_direct_dependencies() {
@@ -118,9 +118,13 @@ bundle_dependency_closure() {
    # (scripts/check_appimage_libs.sh).
    local -a search_dirs=("$dst_dir")

-    while [ ${#queue[@]} -gt 0 ]; do
-        target="${queue[0]}"
-        queue=("${queue[@]:1}")
+    # Walked with a read index rather than by reslicing the array: "${queue[@]:1}" rebuilds the whole
+    # queue on every pop, so draining it costs O(n^2). At the ~5k entries this bundle reaches that was
+    # ~22 s of the image build spent copying an array around.
+    local head=0
+    while [ "$head" -lt ${#queue[@]} ]; do
+        target="${queue[$head]}"
+        head=$((head + 1))

        if [ ! -e "$target" ] || ! appimage_is_elf_file "$target"; then
            continue
@@ -82,7 +82,7 @@ using json = nlohmann::json;
 namespace Slic3r {

 namespace {
-constexpr const char* ORCA_DEFAULT_API_URL   = "api.orcaslicer.com";
+constexpr const char* ORCA_DEFAULT_API_URL   = "https://api.orcaslicer.com";
 constexpr const char* ORCA_DEFAULT_AUTH_URL  = "https://auth.orcaslicer.com";
 constexpr const char* ORCA_DEFAULT_CLOUD_URL = "https://cloud.orcaslicer.com";
 // Orca: This is a public key with no secret, used to identify the client application to the backend.
Author	SHA1	Message	Date
ExPikaPaka	bd0ef35b90	Speed up the Linux image build Profiling build_linux_image.sh: 96 s, of which 51 s in the dependency audit. appimage_is_elf_file() ran file(1) and grep per candidate. An AppDir holds ~9.6k of them, 4.8k being the bundled Python runtime, none of them ELF: ~19k processes for 14 s. Read the four-byte magic instead; checked against the old result on 4000 files, no disagreement. The dependency walk popped its queue with "${queue[@]:1}", which rebuilds the whole array each time. At ~4.8k entries that was 22 s of copying. Use a read index. 96 s -> 12.7 s. The audit still passes.	2026-10-07 09:25:19 +02:00
HanifKoh	6639a32b0c	Remove using namespace std from json_diff.hpp (#16222 ) The directive sat at global scope in a header that DeviceManager.hpp includes, so most of the GUI compiled with all of std in the global namespace. 42 files had come to rely on it, mostly for string, vector and unordered_map, four of them for the ""sv and ""ms literals. Those sites are qualified. GCodeViewer.cpp spelled the type as std::vector<::string>, which only resolved through the directive. The files that use the ""sv and ""ms literals get a file-scope "using namespace std::string_view_literals;" or "using namespace std::chrono_literals;", as other sources already do.	2026-10-07 14:58:49 +08:00
SoftFever	1ec195a221	Update build commands in AGENTS.md to use Release configuration	2026-10-07 14:44:04 +08:00
Ian Chua	e5324ae319	Fix Orca Cloud API requests to use HTTPS (#15391 ) # Description The default Orca Cloud API URL omits its scheme, so libcurl interprets it as HTTP and follows the server redirect to HTTPS. Recent libcurl versions intentionally do not forward the `Authorization` header across protocol/port-changing redirects, causing Orca Cloud profile sync to receive HTTP 401 `missing_authorization` responses and eventually log the user out. Use the HTTPS API URL directly. Besides restoring sync with current libcurl versions, this improves security by preventing the bearer access token from being sent in the initial unencrypted HTTP request. # Screenshots/Recordings/Graphs N/A — no UI changes. ## Tests - `git diff --check` - Confirmed with current libcurl that the scheme-less URL redirects and loses the authorization header, while the direct HTTPS URL retains it	2026-10-07 14:30:07 +08:00
AveryanAlex	67ff6bd34b	Fix Orca Cloud API URL scheme	2026-08-26 19:52:16 +03:00