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cpdb-libs 2.0b7

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@tillkamppeter tillkamppeter released this 19 Feb 23:27
2.0b7
b60c3b3

In the seventh beta release for cpdb-libs 2.0.0 the development was mostly led by Biswadeep Purkayastha, GSoC contributor on CPDB support for LibreOffice and his mentor Michael Weghorn, LibreOffice developer. Many bugs, especially memory leaks, got fixed and the API got improved, following actual needs.

  • Add capability to check CPDB version at runtime
    This allows third-party applications to easily manage different CPDB releases. This is especially important when shipping pre-built binaries of such applications implementing CPDB, as the end users may be running outdated and potentially vulnerable versions of CPDB (Pull request #49).
  • Allow to extract translations from table
    (Pull request #58)
  • cpdb-text-frontend: Get locale via GLib
    Instead of only supporting the LANGUAGE environment variable that's not necessarily set, use GLib's g_get_language_names to detect the locale to use in the text frontend which takes other environment variables into account as well (Pull request #51).
  • cpdb-text-frontend: Quit on EOF (Ctrl + D)
    Quit the text frontend when scanf returns EOF, which e.g. happens when the user presses Ctrl + D. Previously, pressing Ctrl + D would result in the loop running indefinitely, printing ">" without end (Pull request #38).
  • Added API function cpdbRefreshPrinterList() to refresh the printer list
    (Pull request #35)
  • New API function cpdbPrinterCallback()
    • Was printer_callback() in cpdb-text-frontend
      (Pull request #36)
  • Turn cpdbFillBasicOptions() into a frontend API function
    (Pull request #37)
  • Turn some static functions into frontend API functions
    • on_printer_added() -> cpdbOnPrinterAdded()
    • on_printer_removed() -> cpdbOnPrinterRemoved()
    • on_printer_state_changed() -> cpdbOnPrinterStateChanged()
      (Pull request #36)
  • Turned static function get_dbus_connection() into API function
    cpdbGetDbusConnection()
    (Pull request #35)
  • Removed unused parameter instance_name from API functions
    cpdbGetNewFrontendObj() and cpdbStartListingPrinters()
    (Pull request #41)
  • cpdb-text-frontend: Add null check for get-default-printer
    Instead of crashing, asking for the default printer for a non-existing backend now prints a decent error message (Pull request #50).
  • cpdbConcatPath(): Actually check XDG_CONFIG_DIRS
    Instead of using CPDB_SYSCONFDIR again as it was already done earlier, and doing so in a loop, use the actual path extracted from the XDG_CONFIG_DIRS environment variable (Pull request #48).
  • frontend: Check file before creating print job
    Try to open the file to be printed at the given file path before creating a print job using cpdbPrintFD(), to avoid creation of a "dead" job which needs to get manually canceled (Pull request #78).
  • Correct DBus calls to add, delete, and state change of printers
    (Pull request #44)
  • Pass backend name to cpdbRefreshPrinterList() as const char*
    Use const char* instead of char* for the backend param of cpdbRefreshPrinterList(). const char* is the usual way to pass C strings. That also simplifies using the function (Pull request #40).
  • cpdb-text-frontend: Don't crash when printer doesn't exist
    Instead of crashing due to a NULL dereference, print a message and skip further processing of the current command when cpdbFindPrinterObj returns NULL, e.g. because the user has entered the name of a nonexisting printer or backend (Pull request #39).
  • Replace cpdbGetStringCopy() with g_strdup()
    GLib's g_strdup() already provides the same functionality as cpdbGetStringCopy(), so there's no need to have a custom implementation and even make that part of the public API (Pull request #42).
  • Replace cpdbConcat() with g_strconcat()
    GLib's g_strconcat already provides the functionality to concatenate strings, so there's no need to have cpdbConcat as a custom implementation and even make that part of the public API (Pull request #55).
  • Drop several unused variables
    (Pull requests #52, #64, #68)
  • Drop unused cpdb_job_t and cpdbUnpackJobArray()
    Got unused since we stream the print data through a Unix domain socket (Pull request #30). Removed with pull request #73.
  • Drop unused cpdbExtractFileName()
    (Pull request #56)
  • Drop unused own_id member of frontend data structure
    (Pull request #46)
  • Fixed tons of memory leaks
    • cpdbGetSysConfDir() (Pull request #47)
    • cpdbUnpackOptions() (Pull request #53)
    • cpdb-text-frontend: Fix memory leak in add-setting() (Pull request #54)
    • cpdbGetDefaultPrinterForBackend() (Pull request #57)
    • cpdbCreateBackend() (Pull request #59)
    • cpdbRefreshPrinterList() (Pull request #60)
    • Fixing a memory leak in f->printer hasg table (Pull request #61)
    • cpdbPrintFileWithJobTitle() (Pull request #62)
    • cpdb-text-frontend: Fix memory leak in print-file() (Pull request #63)
    • Unref GVariantBuilder to fix memory leak (Pull request #65)
    • cpdbActivateBackends() (Pull request #66)
    • Log and free GError in call to doListing (Pull request #67)
    • Delete printer objects when deleting hash table (Pull request #71)
    • cpdbDeletePrinterObj() (Pull request #72)
    • cpdbDeleteOption() (Pull request #74)
    • More in cpdb-text-frontend (Pull requests #75, #76)
    • cpdbGet...Translation() (Pull request #77)
  • Fix potential double-free in cpdbResurrectPrinterFromFile()
    (Pull request #69)
  • README.md: Explained inner workings of CPDB and gave containerization hints
  • Documentation for newly added API functions
    Added header comments for auto-generating developer documentation (Pull request #43).
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