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[PATCH v13 00/16] ls-tree: "--object-only" and "--format" opts

From
Teng Long <dyroneteng@gmail.com>
Date
Mar 21, 2022, 07:33 UTC
Message-ID
<cover.1647846935.git.dyroneteng@gmail.com>
In-Reply-To
<cover.1646390152.git.dyroneteng@gmail.com>
Diff from v12:
Current patch is based by the review patch of Ævar Arnfjörð Bjarmason in [1].

In terms of the review commits, I replied Ævar Arnfjörð Bjarmason [2] and listed the actions, therefore this v13 patch was implemented by these actions. 

Links:
1. https://public-inbox.org/git/cover-0.7-00000000000-20220310T134811Z-avarab@gmail.com/
2. https://public-inbox.org/git/20220317095129.86790-1-dyroneteng@gmail.com/
Thanks.
Johannes Schindelin (1):
  cocci: allow padding with `strbuf_addf()`
Teng Long (5):
  ls-tree: rename "retval" to "recurse" in "show_tree()"
  ls-tree: simplify nesting if/else logic in "show_tree()"
  ls-tree: fix "--name-only" and "--long" combined use bug
  ls-tree: slightly refactor `show_tree()`
  ls-tree: support --object-only option for "git-ls-tree"
Ævar Arnfjörð Bjarmason (10):
  ls-tree: remove commented-out code
  ls-tree: add missing braces to "else" arms
  ls-tree: use "enum object_type", not {blob,tree,commit}_type
  ls-tree: use "size_t", not "int" for "struct strbuf"'s "len"
  ls-tree: introduce struct "show_tree_data"
  ls-tree: introduce "--format" option
  ls-tree tests: add tests for --name-status
  ls-tree: detect and error on --name-only --name-status
  ls-tree: remove FIELD_*, just use MODE_*
  ls-tree: split up "fast path" callbacks
 Documentation/git-ls-tree.txt   |  68 +++++-
 builtin/ls-tree.c               | 367 ++++++++++++++++++++++++++------
 contrib/coccinelle/strbuf.cocci |   6 +-
 t/t3101-ls-tree-dirname.sh      |  55 ++---
 t/t3103-ls-tree-misc.sh         |  15 ++
 t/t3104-ls-tree-format.sh       |  76 +++++++
 6 files changed, 493 insertions(+), 94 deletions(-)
 create mode 100755 t/t3104-ls-tree-format.sh
Range-diff against v12:
 -:  ---------- >  1:  2fcff7e0d4 ls-tree: remove commented-out code
 -:  ---------- >  2:  6fd1dd9383 ls-tree: add missing braces to "else" arms
 -:  ---------- >  3:  208654b5e2 ls-tree: use "enum object_type", not {blob,tree,commit}_type
 -:  ---------- >  4:  2637464fd8 ls-tree: use "size_t", not "int" for "struct strbuf"'s "len"
 -:  ---------- >  5:  99e6d47108 ls-tree: rename "retval" to "recurse" in "show_tree()"
 -:  ---------- >  6:  a8d9b78dea ls-tree: simplify nesting if/else logic in "show_tree()"
 -:  ---------- >  7:  25a07e048f ls-tree: fix "--name-only" and "--long" combined use bug
 1:  f449146b4d !  8:  55f1e10d7e ls-tree: slightly refactor `show_tree()`
    @@ builtin/ls-tree.c
     -#define LS_SHOW_SIZE 16
     +#define LS_TREE_ONLY (1 << 1)
     +#define LS_SHOW_TREES (1 << 2)
    -+#define LS_NAME_ONLY (1 << 3)
    -+#define LS_SHOW_SIZE (1 << 4)
      static int abbrev;
      static int ls_options;
      static struct pathspec pathspec;
    @@ builtin/ls-tree.c
      	NULL
      };
      
    -+static enum mutx_option {
    -+	MODE_UNSPECIFIED = 0,
    ++static enum ls_tree_cmdmode {
    ++	MODE_LONG = 1,
     +	MODE_NAME_ONLY,
    -+	MODE_LONG,
     +} cmdmode;
     +
     +static int parse_shown_fields(void)
 2:  80311adc7c !  9:  85d0b0da1d ls-tree: introduce struct "show_tree_data"
    @@ builtin/ls-tree.c: static unsigned int shown_fields;
      static const  char * const ls_tree_usage[] = {
      	N_("git ls-tree [<options>] <tree-ish> [<path>...]"),
      	NULL
    -@@ builtin/ls-tree.c: static enum mutx_option {
    - 	MODE_LONG,
    +@@ builtin/ls-tree.c: static enum ls_tree_cmdmode {
    + 	MODE_NAME_ONLY,
      } cmdmode;
      
     -static int parse_shown_fields(void)
 3:  459080f549 = 10:  eddcf903ad cocci: allow padding with `strbuf_addf()`
 4:  cb717d08be ! 11:  7451242daa ls-tree: introduce "--format" option
    @@ Commit message
         idea and suggestion, this commit makes modifications in terms of the
         original discussion on community [1].
     
    +    In [1] there was a "GIT_TEST_LS_TREE_FORMAT_BACKEND" variable to
    +    ensure that we had test coverage for passing tests that would
    +    otherwise use show_tree() through show_tree_fmt(), and thus that the
    +    formatting mechanism could handle all the same cases as the
    +    non-formatting options.
    +
    +    Somewhere in subsequent re-rolls of that we seem to have drifted away
    +    from what the goal of these tests should be. We're trying to ensure
    +    correctness of show_tree_fmt(). We can't tell if we "hit [the]
    +    fast-path" here, and instead of having an explicit test for that, we
    +    can just add it to something our "test_ls_tree_format" tests for.
    +
         Here is the statistics about performance tests:
     
         1. Default format (hitten the builtin formats):
    @@ Commit message
     
         Links:
                 [1] https://public-inbox.org/git/RFC-patch-6.7-eac299f06ff-20211217T131635Z-avarab@gmail.com/
    +            [2] https://lore.kernel.org/git/cb717d08be87e3239117c6c667cb32caabaad33d.1646390152.git.dyroneteng@gmail.com/
     
         Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
         Signed-off-by: Teng Long <dyroneteng@gmail.com>
    @@ builtin/ls-tree.c: static const char *ls_tree_prefix;
      struct show_tree_data {
      	unsigned mode;
      	enum object_type type;
    -@@ builtin/ls-tree.c: static enum mutx_option {
    - 	MODE_LONG,
    +@@ builtin/ls-tree.c: static enum ls_tree_cmdmode {
    + 	MODE_NAME_ONLY,
      } cmdmode;
      
     +static void expand_objectsize(struct strbuf *line, const struct object_id *oid,
    @@ t/t3104-ls-tree-format.sh (new)
     +	opts=$2 &&
     +	fmtopts=$3 &&
     +	shift 2 &&
    -+	git ls-tree $opts -r HEAD >expect.raw &&
    -+	sed "s/^/> /" >expect <expect.raw &&
    -+	git ls-tree --format="> $format" -r $fmtopts HEAD >actual &&
    -+	test_cmp expect actual
    ++
    ++	test_expect_success "ls-tree '--format=<$format>' is like options '$opts $fmtopts'" '
    ++		git ls-tree $opts -r HEAD >expect &&
    ++		git ls-tree --format="$format" -r $fmtopts HEAD >actual &&
    ++		test_cmp expect actual
    ++	'
    ++
    ++	test_expect_success "ls-tree '--format=<$format>' on optimized v.s. non-optimized path" '
    ++		git ls-tree --format="$format" -r $fmtopts HEAD >expect &&
    ++		git ls-tree --format="> $format" -r $fmtopts HEAD >actual.raw &&
    ++		sed "s/^> //" >actual <actual.raw &&
    ++		test_cmp expect actual
    ++	'
     +}
     +
    -+test_expect_success 'ls-tree --format=<default-like>' '
    -+	test_ls_tree_format \
    -+		"%(objectmode) %(objecttype) %(objectname)%x09%(path)" \
    -+		""
    -+'
    ++test_ls_tree_format \
    ++	"%(objectmode) %(objecttype) %(objectname)%x09%(path)" \
    ++	""
     +
    -+test_expect_success 'ls-tree --format=<long-like>' '
    -+	test_ls_tree_format \
    -+		"%(objectmode) %(objecttype) %(objectname) %(objectsize:padded)%x09%(path)" \
    -+		"--long"
    -+'
    ++test_ls_tree_format \
    ++	"%(objectmode) %(objecttype) %(objectname) %(objectsize:padded)%x09%(path)" \
    ++	"--long"
     +
    -+test_expect_success 'ls-tree --format=<name-only-like>' '
    -+	test_ls_tree_format \
    -+		"%(path)" \
    -+		"--name-only"
    -+'
    ++test_ls_tree_format \
    ++	"%(path)" \
    ++	"--name-only"
     +
    -+test_expect_success 'ls-tree combine --format=<default-like> and -t' '
    -+	test_ls_tree_format \
    ++test_ls_tree_format \
     +	"%(objectmode) %(objecttype) %(objectname)%x09%(path)" \
     +	"-t" \
     +	"-t"
    -+'
     +
    -+test_expect_success 'ls-tree combine --format=<default-like> and --full-name' '
    -+	test_ls_tree_format \
    ++test_ls_tree_format \
     +	"%(objectmode) %(objecttype) %(objectname)%x09%(path)" \
     +	"--full-name" \
     +	"--full-name"
    -+'
     +
    -+test_expect_success 'ls-tree combine --format=<default-like> and --full-tree' '
    -+	test_ls_tree_format \
    ++test_ls_tree_format \
     +	"%(objectmode) %(objecttype) %(objectname)%x09%(path)" \
     +	"--full-tree" \
     +	"--full-tree"
    -+'
     +
    -+test_expect_success 'ls-tree hit fast-path with --format=<default-like>' '
    -+	git ls-tree -r HEAD >expect &&
    -+	git ls-tree --format="%(objectmode) %(objecttype) %(objectname)%x09%(path)" -r HEAD >actual &&
    -+	test_cmp expect actual
    -+'
    -+
    -+test_expect_success 'ls-tree hit fast-path with --format=<name-only-like>' '
    -+	git ls-tree -r --name-only HEAD >expect &&
    -+	git ls-tree --format="%(path)" -r HEAD >actual &&
    -+	test_cmp expect actual
    -+'
     +test_done
 5:  55b1c4379d ! 12:  2bcd08ebd0 ls-tree: support --object-only option for "git-ls-tree"
    @@ Documentation/git-ls-tree.txt: OPTIONS
      	Instead of showing the full 40-byte hexadecimal object
     
      ## builtin/ls-tree.c ##
    -@@ builtin/ls-tree.c: static int line_termination = '\n';
    - #define LS_SHOW_TREES (1 << 2)
    - #define LS_NAME_ONLY (1 << 3)
    - #define LS_SHOW_SIZE (1 << 4)
    -+#define LS_OBJECT_ONLY (1 << 5)
    - static int abbrev;
    - static int ls_options;
    - static struct pathspec pathspec;
     @@ builtin/ls-tree.c: static const char *format;
      static const char *default_format = "%(objectmode) %(objecttype) %(objectname)%x09%(path)";
      static const char *long_format = "%(objectmode) %(objecttype) %(objectname) %(objectsize:padded)%x09%(path)";
    @@ builtin/ls-tree.c: static const char *format;
      	unsigned mode;
      	enum object_type type;
     @@ builtin/ls-tree.c: static const  char * const ls_tree_usage[] = {
    - static enum mutx_option {
    - 	MODE_UNSPECIFIED = 0,
    + static enum ls_tree_cmdmode {
    + 	MODE_LONG = 1,
      	MODE_NAME_ONLY,
     +	MODE_OBJECT_ONLY,
    - 	MODE_LONG,
      } cmdmode;
      
    + static void expand_objectsize(struct strbuf *line, const struct object_id *oid,
     @@ builtin/ls-tree.c: static int parse_shown_fields(unsigned int *shown_fields)
      		*shown_fields = FIELD_PATH_NAME;
      		return 0;
    @@ t/t3103-ls-tree-misc.sh: test_expect_success 'ls-tree fails with non-zero exit c
      test_done
     
      ## t/t3104-ls-tree-format.sh ##
    -@@ t/t3104-ls-tree-format.sh: test_expect_success 'ls-tree --format=<name-only-like>' '
    - 		"--name-only"
    - '
    +@@ t/t3104-ls-tree-format.sh: test_ls_tree_format \
    + 	"%(path)" \
    + 	"--name-only"
      
    -+test_expect_success 'ls-tree --format=<object-only-like>' '
    -+	test_ls_tree_format \
    -+		"%(objectname)" \
    -+		"--object-only"
    -+'
    ++test_ls_tree_format \
    ++	"%(objectname)" \
    ++	"--object-only"
     +
    -+test_expect_success 'ls-tree --format=<object-only-like> --abbrev' '
    -+	test_ls_tree_format \
    -+		"%(objectname)" \
    -+		"--object-only --abbrev" \
    -+		"--abbrev"
    -+'
    ++test_ls_tree_format \
    ++	"%(objectname)" \
    ++	"--object-only --abbrev" \
    ++	"--abbrev"
     +
    - test_expect_success 'ls-tree combine --format=<default-like> and -t' '
    - 	test_ls_tree_format \
    + test_ls_tree_format \
      	"%(objectmode) %(objecttype) %(objectname)%x09%(path)" \
    -@@ t/t3104-ls-tree-format.sh: test_expect_success 'ls-tree hit fast-path with --format=<name-only-like>' '
    - 	git ls-tree --format="%(path)" -r HEAD >actual &&
    - 	test_cmp expect actual
    - '
    -+
    -+test_expect_success 'ls-tree hit fast-path with --format=<object-only-like>' '
    -+	git ls-tree -r --object-only HEAD >expect &&
    -+	git ls-tree --format="%(objectname)" -r HEAD >actual &&
    -+	test_cmp expect actual
    -+'
    - test_done
    + 	"-t" \
 -:  ---------- > 13:  a5c73de057 ls-tree tests: add tests for --name-status
 -:  ---------- > 14:  89402a8518 ls-tree: detect and error on --name-only --name-status
 -:  ---------- > 15:  b8afca193a ls-tree: remove FIELD_*, just use MODE_*
 -:  ---------- > 16:  010e3c0ece ls-tree: split up "fast path" callbacks
-- 
2.34.1.406.g2e0e55130e
Previous: Ævar Arnfjörð BjarmasonNext: Teng Long
Message 44 of 107 in “ls-tree: "--object-only" and "--format" opts”
  1. 00/13 ls-tree: "--object-only" and "--format" optsTeng Long, Feb 8, 2022
  2. 01/13 ls-tree: remove commented-out codeTeng Long, Feb 8, 2022
  3. 03/13 ls-tree: use "enum object_type", not {blob,tree,commit}_typeTeng Long, Feb 8, 2022
  4. 12/13 ls-tree: introduce function "fast_path()"Teng Long, Feb 8, 2022
  5. Ævar Arnfjörð BjarmasonFeb 19, 2022
  6. 13/13 ls-tree.c: support --object-only option for "git-ls-tree"Teng Long, Feb 8, 2022
  7. Ævar Arnfjörð BjarmasonFeb 19, 2022
  8. 04/13 ls-tree: use "size_t", not "int" for "struct strbuf"'s "len"Teng Long, Feb 8, 2022
  9. 02/13 ls-tree: add missing braces to "else" armsTeng Long, Feb 8, 2022
  10. 06/13 ls-tree: simplify nesting if/else logic in "show_tree()"Teng Long, Feb 8, 2022
  11. Ævar Arnfjörð BjarmasonFeb 19, 2022
  12. 05/13 ls-tree: rename "retval" to "recurse" in "show_tree()"Teng Long, Feb 8, 2022
  13. 07/13 ls-tree: fix "--name-only" and "--long" combined use bugTeng Long, Feb 8, 2022
  14. Ævar Arnfjörð BjarmasonFeb 19, 2022
  15. 08/13 ls-tree: slightly refactor `show_tree()`Teng Long, Feb 8, 2022
  16. Ævar Arnfjörð BjarmasonFeb 19, 2022
  17. 10/13 cocci: allow padding with `strbuf_addf()`Teng Long, Feb 8, 2022
  18. 09/13 ls-tree: introduce struct "show_tree_data"Teng Long, Feb 8, 2022
  19. 11/13 ls-tree.c: introduce "--format" optionTeng Long, Feb 8, 2022
  20. Ævar Arnfjörð BjarmasonFeb 19, 2022
  21. 00/12 ls-tree: "--object-only" and "--format" optsTeng Long, Mar 4, 2022
  22. 01/12 ls-tree: remove commented-out codeTeng Long, Mar 4, 2022
  23. 02/12 ls-tree: add missing braces to "else" armsTeng Long, Mar 4, 2022
  24. 03/12 ls-tree: use "enum object_type", not {blob,tree,commit}_typeTeng Long, Mar 4, 2022
  25. 04/12 ls-tree: use "size_t", not "int" for "struct strbuf"'s "len"Teng Long, Mar 4, 2022
  26. 05/12 ls-tree: rename "retval" to "recurse" in "show_tree()"Teng Long, Mar 4, 2022
  27. 06/12 ls-tree: simplify nesting if/else logic in "show_tree()"Teng Long, Mar 4, 2022
  28. 07/12 ls-tree: fix "--name-only" and "--long" combined use bugTeng Long, Mar 4, 2022
  29. 08/12 ls-tree: slightly refactor `show_tree()`Teng Long, Mar 4, 2022
  30. 09/12 ls-tree: introduce struct "show_tree_data"Teng Long, Mar 4, 2022
  31. 10/12 cocci: allow padding with `strbuf_addf()`Teng Long, Mar 4, 2022
  32. 11/12 ls-tree: introduce "--format" optionTeng Long, Mar 4, 2022
  33. 12/12 ls-tree: support --object-only option for "git-ls-tree"Teng Long, Mar 4, 2022
  34. 0/7 fixups/suggestions/musings for tl/ls-tree-oid-onlyÆvar Arnfjörð Bjarmason, Mar 10, 2022
  35. 1/7 ls-tree tests: add tests for --name-statusÆvar Arnfjörð Bjarmason, Mar 10, 2022
  36. 2/7 ls-tree tests: exhaustively test fast & slow path for --formatÆvar Arnfjörð Bjarmason, Mar 10, 2022
  37. 5/7 ls-tree: detect and error on --name-only --name-statusÆvar Arnfjörð Bjarmason, Mar 10, 2022
  38. 4/7 ls-tree: remove unused "MODE_UNSPECIFIED"Ævar Arnfjörð Bjarmason, Mar 10, 2022
  39. 3/7 ls-tree: remove dead labelsÆvar Arnfjörð Bjarmason, Mar 10, 2022
  40. 6/7 ls-tree: remove FIELD_*, just use MODE_*Ævar Arnfjörð Bjarmason, Mar 10, 2022
  41. 7/7 ls-tree: split up "fast path" callbacksÆvar Arnfjörð Bjarmason, Mar 10, 2022
  42. Teng LongMar 17, 2022
  43. Ævar Arnfjörð BjarmasonMar 17, 2022
  44. 00/16 ls-tree: "--object-only" and "--format" optsTeng Long, Mar 21, 2022
  45. 01/16 ls-tree: remove commented-out codeTeng Long, Mar 21, 2022
  46. 02/16 ls-tree: add missing braces to "else" armsTeng Long, Mar 21, 2022
  47. 03/16 ls-tree: use "enum object_type", not {blob,tree,commit}_typeTeng Long, Mar 21, 2022
  48. 04/16 ls-tree: use "size_t", not "int" for "struct strbuf"'s "len"Teng Long, Mar 21, 2022
  49. 05/16 ls-tree: rename "retval" to "recurse" in "show_tree()"Teng Long, Mar 21, 2022
  50. 06/16 ls-tree: simplify nesting if/else logic in "show_tree()"Teng Long, Mar 21, 2022
  51. 07/16 ls-tree: fix "--name-only" and "--long" combined use bugTeng Long, Mar 21, 2022
  52. 08/16 ls-tree: slightly refactor `show_tree()`Teng Long, Mar 21, 2022
  53. 09/16 ls-tree: introduce struct "show_tree_data"Teng Long, Mar 21, 2022
  54. 10/16 cocci: allow padding with `strbuf_addf()`Teng Long, Mar 21, 2022
  55. 11/16 ls-tree: introduce "--format" optionTeng Long, Mar 21, 2022
  56. Ævar Arnfjörð BjarmasonMar 21, 2022
  57. 12/16 ls-tree: support --object-only option for "git-ls-tree"Teng Long, Mar 21, 2022
  58. 13/16 ls-tree tests: add tests for --name-statusTeng Long, Mar 21, 2022
  59. Ævar Arnfjörð BjarmasonMar 21, 2022
  60. 14/16 ls-tree: detect and error on --name-only --name-statusTeng Long, Mar 21, 2022
  61. 15/16 ls-tree: remove FIELD_*, just use MODE_*Teng Long, Mar 21, 2022
  62. Ævar Arnfjörð BjarmasonMar 21, 2022
  63. 16/16 ls-tree: split up "fast path" callbacksTeng Long, Mar 21, 2022
  64. Ævar Arnfjörð BjarmasonMar 21, 2022
  65. Teng LongMar 23, 2022
  66. Junio C HamanoMar 21, 2022
  67. 00/15 ls-tree: "--object-only" and "--format" optsTeng Long, Mar 23, 2022
  68. 01/15 ls-tree tests: add tests for --name-statusTeng Long, Mar 23, 2022
  69. 02/15 ls-tree: remove commented-out codeTeng Long, Mar 23, 2022
  70. 03/15 ls-tree: add missing braces to "else" armsTeng Long, Mar 23, 2022
  71. 04/15 ls-tree: use "enum object_type", not {blob,tree,commit}_typeTeng Long, Mar 23, 2022
  72. 05/15 ls-tree: use "size_t", not "int" for "struct strbuf"'s "len"Teng Long, Mar 23, 2022
  73. 06/15 ls-tree: rename "retval" to "recurse" in "show_tree()"Teng Long, Mar 23, 2022
  74. 07/15 ls-tree: simplify nesting if/else logic in "show_tree()"Teng Long, Mar 23, 2022
  75. 08/15 ls-tree: fix "--name-only" and "--long" combined use bugTeng Long, Mar 23, 2022
  76. 09/15 ls-tree: slightly refactor `show_tree()`Teng Long, Mar 23, 2022
  77. 10/15 ls-tree: introduce struct "show_tree_data"Teng Long, Mar 23, 2022
  78. 11/15 cocci: allow padding with `strbuf_addf()`Teng Long, Mar 23, 2022
  79. 12/15 ls-tree: introduce "--format" optionTeng Long, Mar 23, 2022
  80. 13/15 ls-tree: support --object-only option for "git-ls-tree"Teng Long, Mar 23, 2022
  81. 14/15 ls-tree: detect and error on --name-only --name-statusTeng Long, Mar 23, 2022
  82. 15/15 ls-tree: split up "fast path" callbacksTeng Long, Mar 23, 2022
  83. Josh SteadmonApr 4, 2022
  84. ls-tree: `-l` should not imply recursive listingJosh Steadmon, Apr 4, 2022
  85. ls-tree: fix --long implying -r regression in 9c4d58ff2c3Ævar Arnfjörð Bjarmason, Apr 4, 2022
  86. Junio C HamanoApr 6, 2022
  87. Ævar Arnfjörð BjarmasonApr 6, 2022
  88. Junio C HamanoApr 6, 2022
  89. Ævar Arnfjörð BjarmasonApr 7, 2022
  90. Junio C HamanoApr 7, 2022
  91. ls-tree: test for the regression in 9c4d58ff2c3Ævar Arnfjörð Bjarmason, May 31, 2022
  92. Johannes SchindelinJun 2, 2022
  93. Junio C HamanoJun 2, 2022
  94. js/ci-github-workflow-markup output regression (was: [PATCH] ls-tree: test for the regression in 9c4d58ff2c3)Ævar Arnfjörð Bjarmason, Jun 3, 2022
  95. Junio C HamanoJun 3, 2022
  96. Ævar Arnfjörð BjarmasonJun 3, 2022
  97. Junio C HamanoJun 7, 2022
  98. Ævar Arnfjörð BjarmasonJun 7, 2022
  99. Johannes SchindelinJun 8, 2022
  100. Ævar Arnfjörð BjarmasonJun 9, 2022
  101. ls-tree: test for the regression in 9c4d58ff2c3Ævar Arnfjörð Bjarmason, Jun 3, 2022
  102. Johannes SchindelinJun 8, 2022
  103. Teng LongApr 7, 2022
  104. Junio C HamanoApr 6, 2022
  105. Junio C HamanoMar 23, 2022
  106. Teng LongMar 24, 2022
  107. Ævar Arnfjörð BjarmasonFeb 28, 2022

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