From 12da1d1f6ffcd546a892a33302bb34fd37169022 Mon Sep 17 00:00:00 2001 From: Thomas Rast Date: Thu, 28 Mar 2013 17:47:32 +0100 Subject: Implement line-history search (git log -L) This is a rewrite of much of Bo's work, mainly in an effort to split it into smaller, easier to understand routines. The algorithm is built around the struct range_set, which encodes a series of line ranges as intervals [a,b). This is used in two contexts: * A set of lines we are tracking (which will change as we dig through history). * To encode diffs, as pairs of ranges. The main routine is range_set_map_across_diff(). It processes the diff between a commit C and some parent P. It determines which diff hunks are relevant to the ranges tracked in C, and computes the new ranges for P. The algorithm is then simply to process history in topological order from newest to oldest, computing ranges and (partial) diffs. At branch points, we need to merge the ranges we are watching. We will find that many commits do not affect the chosen ranges, and mark them TREESAME (in addition to those already filtered by pathspec limiting). Another pass of history simplification then gets rid of such commits. This is wired as an extra filtering pass in the log machinery. This currently only reduces code duplication, but should allow for other simplifications and options to be used. Finally, we hook a diff printer into the output chain. Ideally we would wire directly into the diff logic, to optionally use features like word diff. However, that will require some major reworking of the diff chain, so we completely replace the output with our own diff for now. As this was a GSoC project, and has quite some history by now, many people have helped. In no particular order, thanks go to Jakub Narebski Jens Lehmann Jonathan Nieder Junio C Hamano Ramsay Jones Will Palmer Apologies to everyone I forgot. Signed-off-by: Bo Yang Signed-off-by: Thomas Rast Signed-off-by: Junio C Hamano --- t/t4211/expect.beginning-of-file | 43 +++++ t/t4211/expect.end-of-file | 62 ++++++++ t/t4211/expect.move-support-f | 40 +++++ t/t4211/expect.simple-f | 59 +++++++ t/t4211/expect.simple-main | 68 ++++++++ t/t4211/expect.two-ranges | 102 ++++++++++++ t/t4211/expect.vanishes-early | 39 +++++ t/t4211/history.export | 330 +++++++++++++++++++++++++++++++++++++++ 8 files changed, 743 insertions(+) create mode 100644 t/t4211/expect.beginning-of-file create mode 100644 t/t4211/expect.end-of-file create mode 100644 t/t4211/expect.move-support-f create mode 100644 t/t4211/expect.simple-f create mode 100644 t/t4211/expect.simple-main create mode 100644 t/t4211/expect.two-ranges create mode 100644 t/t4211/expect.vanishes-early create mode 100644 t/t4211/history.export (limited to 't/t4211') diff --git a/t/t4211/expect.beginning-of-file b/t/t4211/expect.beginning-of-file new file mode 100644 index 0000000000..91b4054898 --- /dev/null +++ b/t/t4211/expect.beginning-of-file @@ -0,0 +1,43 @@ +commit 4a23ae5c98d59a58c6da036156959f2dc9f472ad +Author: Thomas Rast +Date: Thu Feb 28 10:47:40 2013 +0100 + + change at very beginning + +diff --git a/a.c b/a.c +--- a/a.c ++++ b/a.c +@@ -1,3 +1,4 @@ ++#include + #include + + long f(long x) + +commit a6eb82647d5d67f893da442f8f9375fd89a3b1e2 +Author: Thomas Rast +Date: Thu Feb 28 10:45:16 2013 +0100 + + touch both functions + +diff --git a/a.c b/a.c +--- a/a.c ++++ b/a.c +@@ -1,3 +1,3 @@ + #include + +-int f(int x) ++long f(long x) + +commit de4c48ae814792c02a49c4c3c0c757ae69c55f6a +Author: Thomas Rast +Date: Thu Feb 28 10:44:48 2013 +0100 + + initial + +diff --git a/a.c b/a.c +--- /dev/null ++++ b/a.c +@@ -0,0 +1,3 @@ ++#include ++ ++int f(int x) diff --git a/t/t4211/expect.end-of-file b/t/t4211/expect.end-of-file new file mode 100644 index 0000000000..bd25bb2f59 --- /dev/null +++ b/t/t4211/expect.end-of-file @@ -0,0 +1,62 @@ +commit 4659538844daa2849b1a9e7d6fadb96fcd26fc83 +Author: Thomas Rast +Date: Thu Feb 28 10:48:43 2013 +0100 + + change back to complete line + +diff --git a/a.c b/a.c +--- a/a.c ++++ b/a.c +@@ -20,3 +20,5 @@ + printf("%ld\n", f(15)); + return 0; +-} +\ No newline at end of file ++} ++ ++/* incomplete lines are bad! */ + +commit 100b61a6f2f720f812620a9d10afb3a960ccb73c +Author: Thomas Rast +Date: Thu Feb 28 10:48:10 2013 +0100 + + change to an incomplete line at end + +diff --git a/a.c b/a.c +--- a/a.c ++++ b/a.c +@@ -20,3 +20,3 @@ + printf("%ld\n", f(15)); + return 0; +-} ++} +\ No newline at end of file + +commit a6eb82647d5d67f893da442f8f9375fd89a3b1e2 +Author: Thomas Rast +Date: Thu Feb 28 10:45:16 2013 +0100 + + touch both functions + +diff --git a/a.c b/a.c +--- a/a.c ++++ b/a.c +@@ -19,3 +19,3 @@ +- printf("%d\n", f(15)); ++ printf("%ld\n", f(15)); + return 0; + } + +commit de4c48ae814792c02a49c4c3c0c757ae69c55f6a +Author: Thomas Rast +Date: Thu Feb 28 10:44:48 2013 +0100 + + initial + +diff --git a/a.c b/a.c +--- /dev/null ++++ b/a.c +@@ -0,0 +18,3 @@ ++ printf("%d\n", f(15)); ++ return 0; ++} diff --git a/t/t4211/expect.move-support-f b/t/t4211/expect.move-support-f new file mode 100644 index 0000000000..78a8cf1afd --- /dev/null +++ b/t/t4211/expect.move-support-f @@ -0,0 +1,40 @@ +commit 6ce3c4ff690136099bb17e1a8766b75764726ea7 +Author: Thomas Rast +Date: Thu Feb 28 10:49:50 2013 +0100 + + another simple change + +diff --git a/b.c b/b.c +--- a/b.c ++++ b/b.c +@@ -4,9 +4,9 @@ + long f(long x) + { + int s = 0; + while (x) { +- x >>= 1; ++ x /= 2; + s++; + } + return s; + } + +commit e6da343666244ea9e67cbe3f3bd26da860f9fe0e +Author: Thomas Rast +Date: Thu Feb 28 10:49:28 2013 +0100 + + move file + +diff --git a/b.c b/b.c +--- /dev/null ++++ b/b.c +@@ -0,0 +4,9 @@ ++long f(long x) ++{ ++ int s = 0; ++ while (x) { ++ x >>= 1; ++ s++; ++ } ++ return s; ++} diff --git a/t/t4211/expect.simple-f b/t/t4211/expect.simple-f new file mode 100644 index 0000000000..a1f5bc49c8 --- /dev/null +++ b/t/t4211/expect.simple-f @@ -0,0 +1,59 @@ +commit a6eb82647d5d67f893da442f8f9375fd89a3b1e2 +Author: Thomas Rast +Date: Thu Feb 28 10:45:16 2013 +0100 + + touch both functions + +diff --git a/a.c b/a.c +--- a/a.c ++++ b/a.c +@@ -3,9 +3,9 @@ +-int f(int x) ++long f(long x) + { + int s = 0; + while (x) { + x >>= 1; + s++; + } + return s; + } + +commit f04fb20f2c77850996cba739709acc6faecc58f7 +Author: Thomas Rast +Date: Thu Feb 28 10:44:55 2013 +0100 + + change f() + +diff --git a/a.c b/a.c +--- a/a.c ++++ b/a.c +@@ -3,8 +3,9 @@ + int f(int x) + { + int s = 0; + while (x) { + x >>= 1; + s++; + } ++ return s; + } + +commit de4c48ae814792c02a49c4c3c0c757ae69c55f6a +Author: Thomas Rast +Date: Thu Feb 28 10:44:48 2013 +0100 + + initial + +diff --git a/a.c b/a.c +--- /dev/null ++++ b/a.c +@@ -0,0 +3,8 @@ ++int f(int x) ++{ ++ int s = 0; ++ while (x) { ++ x >>= 1; ++ s++; ++ } ++} diff --git a/t/t4211/expect.simple-main b/t/t4211/expect.simple-main new file mode 100644 index 0000000000..39ce39bebe --- /dev/null +++ b/t/t4211/expect.simple-main @@ -0,0 +1,68 @@ +commit 4659538844daa2849b1a9e7d6fadb96fcd26fc83 +Author: Thomas Rast +Date: Thu Feb 28 10:48:43 2013 +0100 + + change back to complete line + +diff --git a/a.c b/a.c +--- a/a.c ++++ b/a.c +@@ -18,5 +18,5 @@ + int main () + { + printf("%ld\n", f(15)); + return 0; +-} +\ No newline at end of file ++} + +commit 100b61a6f2f720f812620a9d10afb3a960ccb73c +Author: Thomas Rast +Date: Thu Feb 28 10:48:10 2013 +0100 + + change to an incomplete line at end + +diff --git a/a.c b/a.c +--- a/a.c ++++ b/a.c +@@ -18,5 +18,5 @@ + int main () + { + printf("%ld\n", f(15)); + return 0; +-} ++} +\ No newline at end of file + +commit a6eb82647d5d67f893da442f8f9375fd89a3b1e2 +Author: Thomas Rast +Date: Thu Feb 28 10:45:16 2013 +0100 + + touch both functions + +diff --git a/a.c b/a.c +--- a/a.c ++++ b/a.c +@@ -17,5 +17,5 @@ + int main () + { +- printf("%d\n", f(15)); ++ printf("%ld\n", f(15)); + return 0; + } + +commit de4c48ae814792c02a49c4c3c0c757ae69c55f6a +Author: Thomas Rast +Date: Thu Feb 28 10:44:48 2013 +0100 + + initial + +diff --git a/a.c b/a.c +--- /dev/null ++++ b/a.c +@@ -0,0 +16,5 @@ ++int main () ++{ ++ printf("%d\n", f(15)); ++ return 0; ++} diff --git a/t/t4211/expect.two-ranges b/t/t4211/expect.two-ranges new file mode 100644 index 0000000000..6109aa0dce --- /dev/null +++ b/t/t4211/expect.two-ranges @@ -0,0 +1,102 @@ +commit 4659538844daa2849b1a9e7d6fadb96fcd26fc83 +Author: Thomas Rast +Date: Thu Feb 28 10:48:43 2013 +0100 + + change back to complete line + +diff --git a/a.c b/a.c +--- a/a.c ++++ b/a.c +@@ -18,5 +18,5 @@ + int main () + { + printf("%ld\n", f(15)); + return 0; +-} +\ No newline at end of file ++} + +commit 100b61a6f2f720f812620a9d10afb3a960ccb73c +Author: Thomas Rast +Date: Thu Feb 28 10:48:10 2013 +0100 + + change to an incomplete line at end + +diff --git a/a.c b/a.c +--- a/a.c ++++ b/a.c +@@ -18,5 +18,5 @@ + int main () + { + printf("%ld\n", f(15)); + return 0; +-} ++} +\ No newline at end of file + +commit a6eb82647d5d67f893da442f8f9375fd89a3b1e2 +Author: Thomas Rast +Date: Thu Feb 28 10:45:16 2013 +0100 + + touch both functions + +diff --git a/a.c b/a.c +--- a/a.c ++++ b/a.c +@@ -3,9 +3,9 @@ +-int f(int x) ++long f(long x) + { + int s = 0; + while (x) { + x >>= 1; + s++; + } + return s; + } +@@ -17,5 +17,5 @@ + int main () + { +- printf("%d\n", f(15)); ++ printf("%ld\n", f(15)); + return 0; + } + +commit f04fb20f2c77850996cba739709acc6faecc58f7 +Author: Thomas Rast +Date: Thu Feb 28 10:44:55 2013 +0100 + + change f() + +diff --git a/a.c b/a.c +--- a/a.c ++++ b/a.c +@@ -3,8 +3,9 @@ + int f(int x) + { + int s = 0; + while (x) { + x >>= 1; + s++; + } ++ return s; + } + +commit de4c48ae814792c02a49c4c3c0c757ae69c55f6a +Author: Thomas Rast +Date: Thu Feb 28 10:44:48 2013 +0100 + + initial + +diff --git a/a.c b/a.c +--- /dev/null ++++ b/a.c +@@ -0,0 +3,8 @@ ++int f(int x) ++{ ++ int s = 0; ++ while (x) { ++ x >>= 1; ++ s++; ++ } ++} diff --git a/t/t4211/expect.vanishes-early b/t/t4211/expect.vanishes-early new file mode 100644 index 0000000000..1f7cd06941 --- /dev/null +++ b/t/t4211/expect.vanishes-early @@ -0,0 +1,39 @@ +commit 4659538844daa2849b1a9e7d6fadb96fcd26fc83 +Author: Thomas Rast +Date: Thu Feb 28 10:48:43 2013 +0100 + + change back to complete line + +diff --git a/a.c b/a.c +--- a/a.c ++++ b/a.c +@@ -22,1 +24,1 @@ +-} +\ No newline at end of file ++/* incomplete lines are bad! */ + +commit 100b61a6f2f720f812620a9d10afb3a960ccb73c +Author: Thomas Rast +Date: Thu Feb 28 10:48:10 2013 +0100 + + change to an incomplete line at end + +diff --git a/a.c b/a.c +--- a/a.c ++++ b/a.c +@@ -22,1 +22,1 @@ +-} ++} +\ No newline at end of file + +commit de4c48ae814792c02a49c4c3c0c757ae69c55f6a +Author: Thomas Rast +Date: Thu Feb 28 10:44:48 2013 +0100 + + initial + +diff --git a/a.c b/a.c +--- /dev/null ++++ b/a.c +@@ -0,0 +20,1 @@ ++} diff --git a/t/t4211/history.export b/t/t4211/history.export new file mode 100644 index 0000000000..c159794740 --- /dev/null +++ b/t/t4211/history.export @@ -0,0 +1,330 @@ +blob +mark :1 +data 157 +#include + +int f(int x) +{ + int s = 0; + while (x) { + x >>= 1; + s++; + } +} + +/* + * A comment. + */ + +int main () +{ + printf("%d\n", f(15)); + return 0; +} + +reset refs/tags/simple +commit refs/tags/simple +mark :2 +author Thomas Rast 1362044688 +0100 +committer Thomas Rast 1362044688 +0100 +data 8 +initial +M 100644 :1 a.c + +blob +mark :3 +data 168 +#include + +int f(int x) +{ + int s = 0; + while (x) { + x >>= 1; + s++; + } + return s; +} + +/* + * A comment. + */ + +int main () +{ + printf("%d\n", f(15)); + return 0; +} + +commit refs/tags/simple +mark :4 +author Thomas Rast 1362044695 +0100 +committer Thomas Rast 1362044695 +0100 +data 11 +change f() +from :2 +M 100644 :3 a.c + +blob +mark :5 +data 171 +#include + +long f(long x) +{ + int s = 0; + while (x) { + x >>= 1; + s++; + } + return s; +} + +/* + * A comment. + */ + +int main () +{ + printf("%ld\n", f(15)); + return 0; +} + +commit refs/tags/simple +mark :6 +author Thomas Rast 1362044716 +0100 +committer Thomas Rast 1362044716 +0100 +data 21 +touch both functions +from :4 +M 100644 :5 a.c + +blob +mark :7 +data 185 +#include + +long f(long x) +{ + int s = 0; + while (x) { + x >>= 1; + s++; + } + return s; +} + +/* + * This is only an example! + */ + +int main () +{ + printf("%ld\n", f(15)); + return 0; +} + +commit refs/tags/simple +mark :8 +author Thomas Rast 1362044741 +0100 +committer Thomas Rast 1362044741 +0100 +data 14 +touch comment +from :6 +M 100644 :7 a.c + +blob +mark :9 +data 205 +#include +#include + +long f(long x) +{ + int s = 0; + while (x) { + x >>= 1; + s++; + } + return s; +} + +/* + * This is only an example! + */ + +int main () +{ + printf("%ld\n", f(15)); + return 0; +} + +commit refs/tags/simple +mark :10 +author Thomas Rast 1362044860 +0100 +committer Thomas Rast 1362044860 +0100 +data 25 +change at very beginning +from :8 +M 100644 :9 a.c + +blob +mark :11 +data 204 +#include +#include + +long f(long x) +{ + int s = 0; + while (x) { + x >>= 1; + s++; + } + return s; +} + +/* + * This is only an example! + */ + +int main () +{ + printf("%ld\n", f(15)); + return 0; +} +commit refs/tags/simple +mark :12 +author Thomas Rast 1362044890 +0100 +committer Thomas Rast 1362044890 +0100 +data 36 +change to an incomplete line at end +from :10 +M 100644 :11 a.c + +blob +mark :13 +data 238 +#include +#include + +long f(long x) +{ + int s = 0; + while (x) { + x >>= 1; + s++; + } + return s; +} + +/* + * This is only an example! + */ + +int main () +{ + printf("%ld\n", f(15)); + return 0; +} + +/* incomplete lines are bad! */ + +commit refs/tags/simple +mark :14 +author Thomas Rast 1362044923 +0100 +committer Thomas Rast 1362044923 +0100 +data 29 +change back to complete line +from :12 +M 100644 :13 a.c + +commit refs/tags/move-support +mark :15 +author Thomas Rast 1362044968 +0100 +committer Thomas Rast 1362044968 +0100 +data 10 +move file +from :14 +D a.c +M 100644 :13 b.c + +blob +mark :16 +data 237 +#include +#include + +long f(long x) +{ + int s = 0; + while (x) { + x /= 2; + s++; + } + return s; +} + +/* + * This is only an example! + */ + +int main () +{ + printf("%ld\n", f(15)); + return 0; +} + +/* incomplete lines are bad! */ + +commit refs/tags/move-support +mark :17 +author Thomas Rast 1362044990 +0100 +committer Thomas Rast 1362044990 +0100 +data 22 +another simple change +from :15 +M 100644 :16 b.c + +blob +mark :18 +data 254 +#include +#include + +long f(long x); + +/* + * This is only an example! + */ + +int main () +{ + printf("%ld\n", f(15)); + return 0; +} + +/* incomplete lines are bad! */ + +long f(long x) +{ + int s = 0; + while (x) { + x /= 2; + s++; + } + return s; +} + +commit refs/heads/master +mark :19 +author Thomas Rast 1362045024 +0100 +committer Thomas Rast 1362045024 +0100 +data 21 +move within the file +from :17 +M 100644 :18 b.c + +reset refs/heads/master +from :19 + -- cgit v1.2.1 From 13b8f68c1f0b6d4ff5a7bed5a834e7e5e34a9fd0 Mon Sep 17 00:00:00 2001 From: Thomas Rast Date: Thu, 28 Mar 2013 17:47:33 +0100 Subject: log -L: :pattern:file syntax to find by funcname This new syntax finds a funcname matching /pattern/, and then takes from there up to (but not including) the next funcname. So you can say git log -L:main:main.c and it will dig up the main() function and show its line-log, provided there are no other funcnames matching 'main'. Signed-off-by: Thomas Rast Signed-off-by: Junio C Hamano --- t/t4211/expect.simple-f-to-main | 100 ++++++++++++++++++++++++++++++++++++++ t/t4211/expect.simple-main-to-end | 70 ++++++++++++++++++++++++++ 2 files changed, 170 insertions(+) create mode 100644 t/t4211/expect.simple-f-to-main create mode 100644 t/t4211/expect.simple-main-to-end (limited to 't/t4211') diff --git a/t/t4211/expect.simple-f-to-main b/t/t4211/expect.simple-f-to-main new file mode 100644 index 0000000000..a475768710 --- /dev/null +++ b/t/t4211/expect.simple-f-to-main @@ -0,0 +1,100 @@ +commit 39b6eb2d5b706d3322184a169f666f25ed3fbd00 +Author: Thomas Rast +Date: Thu Feb 28 10:45:41 2013 +0100 + + touch comment + +diff --git a/a.c b/a.c +--- a/a.c ++++ b/a.c +@@ -3,14 +3,14 @@ + long f(long x) + { + int s = 0; + while (x) { + x >>= 1; + s++; + } + return s; + } + + /* +- * A comment. ++ * This is only an example! + */ + + +commit a6eb82647d5d67f893da442f8f9375fd89a3b1e2 +Author: Thomas Rast +Date: Thu Feb 28 10:45:16 2013 +0100 + + touch both functions + +diff --git a/a.c b/a.c +--- a/a.c ++++ b/a.c +@@ -3,14 +3,14 @@ +-int f(int x) ++long f(long x) + { + int s = 0; + while (x) { + x >>= 1; + s++; + } + return s; + } + + /* + * A comment. + */ + + +commit f04fb20f2c77850996cba739709acc6faecc58f7 +Author: Thomas Rast +Date: Thu Feb 28 10:44:55 2013 +0100 + + change f() + +diff --git a/a.c b/a.c +--- a/a.c ++++ b/a.c +@@ -3,13 +3,14 @@ + int f(int x) + { + int s = 0; + while (x) { + x >>= 1; + s++; + } ++ return s; + } + + /* + * A comment. + */ + + +commit de4c48ae814792c02a49c4c3c0c757ae69c55f6a +Author: Thomas Rast +Date: Thu Feb 28 10:44:48 2013 +0100 + + initial + +diff --git a/a.c b/a.c +--- /dev/null ++++ b/a.c +@@ -0,0 +3,13 @@ ++int f(int x) ++{ ++ int s = 0; ++ while (x) { ++ x >>= 1; ++ s++; ++ } ++} ++ ++/* ++ * A comment. ++ */ ++ diff --git a/t/t4211/expect.simple-main-to-end b/t/t4211/expect.simple-main-to-end new file mode 100644 index 0000000000..8480bd9cc4 --- /dev/null +++ b/t/t4211/expect.simple-main-to-end @@ -0,0 +1,70 @@ +commit 4659538844daa2849b1a9e7d6fadb96fcd26fc83 +Author: Thomas Rast +Date: Thu Feb 28 10:48:43 2013 +0100 + + change back to complete line + +diff --git a/a.c b/a.c +--- a/a.c ++++ b/a.c +@@ -18,5 +18,7 @@ + int main () + { + printf("%ld\n", f(15)); + return 0; +-} +\ No newline at end of file ++} ++ ++/* incomplete lines are bad! */ + +commit 100b61a6f2f720f812620a9d10afb3a960ccb73c +Author: Thomas Rast +Date: Thu Feb 28 10:48:10 2013 +0100 + + change to an incomplete line at end + +diff --git a/a.c b/a.c +--- a/a.c ++++ b/a.c +@@ -18,5 +18,5 @@ + int main () + { + printf("%ld\n", f(15)); + return 0; +-} ++} +\ No newline at end of file + +commit a6eb82647d5d67f893da442f8f9375fd89a3b1e2 +Author: Thomas Rast +Date: Thu Feb 28 10:45:16 2013 +0100 + + touch both functions + +diff --git a/a.c b/a.c +--- a/a.c ++++ b/a.c +@@ -17,5 +17,5 @@ + int main () + { +- printf("%d\n", f(15)); ++ printf("%ld\n", f(15)); + return 0; + } + +commit de4c48ae814792c02a49c4c3c0c757ae69c55f6a +Author: Thomas Rast +Date: Thu Feb 28 10:44:48 2013 +0100 + + initial + +diff --git a/a.c b/a.c +--- /dev/null ++++ b/a.c +@@ -0,0 +16,5 @@ ++int main () ++{ ++ printf("%d\n", f(15)); ++ return 0; ++} -- cgit v1.2.1 From 209618860c2627a4e134a15472587c574b328b40 Mon Sep 17 00:00:00 2001 From: Thomas Rast Date: Fri, 5 Apr 2013 16:34:48 +0200 Subject: log -L: fix overlapping input ranges The existing code was too defensive, and would trigger the assert in range_set_append() if the user gave overlapping ranges. The intent was always to define overlapping ranges as just the union of all of them, as evidenced by the call to sort_and_merge_range_set(). (Which was already used, unlike what the comment said.) Fix by splitting out the meat of range_set_append() to a new _unsafe() function that lacks the paranoia. sort_and_merge_range_set will fix up the ranges, so we don't need the checks there. Signed-off-by: Thomas Rast Signed-off-by: Junio C Hamano --- t/t4211/expect.multiple | 104 ++++++++++++++++++++ t/t4211/expect.multiple-overlapping | 187 ++++++++++++++++++++++++++++++++++++ t/t4211/expect.multiple-superset | 59 ++++++++++++ 3 files changed, 350 insertions(+) create mode 100644 t/t4211/expect.multiple create mode 100644 t/t4211/expect.multiple-overlapping create mode 100644 t/t4211/expect.multiple-superset (limited to 't/t4211') diff --git a/t/t4211/expect.multiple b/t/t4211/expect.multiple new file mode 100644 index 0000000000..76ad5b598c --- /dev/null +++ b/t/t4211/expect.multiple @@ -0,0 +1,104 @@ +commit 4659538844daa2849b1a9e7d6fadb96fcd26fc83 +Author: Thomas Rast +Date: Thu Feb 28 10:48:43 2013 +0100 + + change back to complete line + +diff --git a/a.c b/a.c +--- a/a.c ++++ b/a.c +@@ -18,5 +18,7 @@ + int main () + { + printf("%ld\n", f(15)); + return 0; +-} +\ No newline at end of file ++} ++ ++/* incomplete lines are bad! */ + +commit 100b61a6f2f720f812620a9d10afb3a960ccb73c +Author: Thomas Rast +Date: Thu Feb 28 10:48:10 2013 +0100 + + change to an incomplete line at end + +diff --git a/a.c b/a.c +--- a/a.c ++++ b/a.c +@@ -18,5 +18,5 @@ + int main () + { + printf("%ld\n", f(15)); + return 0; +-} ++} +\ No newline at end of file + +commit a6eb82647d5d67f893da442f8f9375fd89a3b1e2 +Author: Thomas Rast +Date: Thu Feb 28 10:45:16 2013 +0100 + + touch both functions + +diff --git a/a.c b/a.c +--- a/a.c ++++ b/a.c +@@ -3,9 +3,9 @@ +-int f(int x) ++long f(long x) + { + int s = 0; + while (x) { + x >>= 1; + s++; + } + return s; + } +@@ -17,5 +17,5 @@ + int main () + { +- printf("%d\n", f(15)); ++ printf("%ld\n", f(15)); + return 0; + } + +commit f04fb20f2c77850996cba739709acc6faecc58f7 +Author: Thomas Rast +Date: Thu Feb 28 10:44:55 2013 +0100 + + change f() + +diff --git a/a.c b/a.c +--- a/a.c ++++ b/a.c +@@ -3,8 +3,9 @@ + int f(int x) + { + int s = 0; + while (x) { + x >>= 1; + s++; + } ++ return s; + } + +commit de4c48ae814792c02a49c4c3c0c757ae69c55f6a +Author: Thomas Rast +Date: Thu Feb 28 10:44:48 2013 +0100 + + initial + +diff --git a/a.c b/a.c +--- /dev/null ++++ b/a.c +@@ -0,0 +3,8 @@ ++int f(int x) ++{ ++ int s = 0; ++ while (x) { ++ x >>= 1; ++ s++; ++ } ++} diff --git a/t/t4211/expect.multiple-overlapping b/t/t4211/expect.multiple-overlapping new file mode 100644 index 0000000000..d930b6eec4 --- /dev/null +++ b/t/t4211/expect.multiple-overlapping @@ -0,0 +1,187 @@ +commit 4659538844daa2849b1a9e7d6fadb96fcd26fc83 +Author: Thomas Rast +Date: Thu Feb 28 10:48:43 2013 +0100 + + change back to complete line + +diff --git a/a.c b/a.c +--- a/a.c ++++ b/a.c +@@ -4,19 +4,21 @@ + long f(long x) + { + int s = 0; + while (x) { + x >>= 1; + s++; + } + return s; + } + + /* + * This is only an example! + */ + + int main () + { + printf("%ld\n", f(15)); + return 0; +-} +\ No newline at end of file ++} ++ ++/* incomplete lines are bad! */ + +commit 100b61a6f2f720f812620a9d10afb3a960ccb73c +Author: Thomas Rast +Date: Thu Feb 28 10:48:10 2013 +0100 + + change to an incomplete line at end + +diff --git a/a.c b/a.c +--- a/a.c ++++ b/a.c +@@ -4,19 +4,19 @@ + long f(long x) + { + int s = 0; + while (x) { + x >>= 1; + s++; + } + return s; + } + + /* + * This is only an example! + */ + + int main () + { + printf("%ld\n", f(15)); + return 0; +-} ++} +\ No newline at end of file + +commit 39b6eb2d5b706d3322184a169f666f25ed3fbd00 +Author: Thomas Rast +Date: Thu Feb 28 10:45:41 2013 +0100 + + touch comment + +diff --git a/a.c b/a.c +--- a/a.c ++++ b/a.c +@@ -3,19 +3,19 @@ + long f(long x) + { + int s = 0; + while (x) { + x >>= 1; + s++; + } + return s; + } + + /* +- * A comment. ++ * This is only an example! + */ + + int main () + { + printf("%ld\n", f(15)); + return 0; + } + +commit a6eb82647d5d67f893da442f8f9375fd89a3b1e2 +Author: Thomas Rast +Date: Thu Feb 28 10:45:16 2013 +0100 + + touch both functions + +diff --git a/a.c b/a.c +--- a/a.c ++++ b/a.c +@@ -3,19 +3,19 @@ +-int f(int x) ++long f(long x) + { + int s = 0; + while (x) { + x >>= 1; + s++; + } + return s; + } + + /* + * A comment. + */ + + int main () + { +- printf("%d\n", f(15)); ++ printf("%ld\n", f(15)); + return 0; + } + +commit f04fb20f2c77850996cba739709acc6faecc58f7 +Author: Thomas Rast +Date: Thu Feb 28 10:44:55 2013 +0100 + + change f() + +diff --git a/a.c b/a.c +--- a/a.c ++++ b/a.c +@@ -3,18 +3,19 @@ + int f(int x) + { + int s = 0; + while (x) { + x >>= 1; + s++; + } ++ return s; + } + + /* + * A comment. + */ + + int main () + { + printf("%d\n", f(15)); + return 0; + } + +commit de4c48ae814792c02a49c4c3c0c757ae69c55f6a +Author: Thomas Rast +Date: Thu Feb 28 10:44:48 2013 +0100 + + initial + +diff --git a/a.c b/a.c +--- /dev/null ++++ b/a.c +@@ -0,0 +3,18 @@ ++int f(int x) ++{ ++ int s = 0; ++ while (x) { ++ x >>= 1; ++ s++; ++ } ++} ++ ++/* ++ * A comment. ++ */ ++ ++int main () ++{ ++ printf("%d\n", f(15)); ++ return 0; ++} diff --git a/t/t4211/expect.multiple-superset b/t/t4211/expect.multiple-superset new file mode 100644 index 0000000000..a1f5bc49c8 --- /dev/null +++ b/t/t4211/expect.multiple-superset @@ -0,0 +1,59 @@ +commit a6eb82647d5d67f893da442f8f9375fd89a3b1e2 +Author: Thomas Rast +Date: Thu Feb 28 10:45:16 2013 +0100 + + touch both functions + +diff --git a/a.c b/a.c +--- a/a.c ++++ b/a.c +@@ -3,9 +3,9 @@ +-int f(int x) ++long f(long x) + { + int s = 0; + while (x) { + x >>= 1; + s++; + } + return s; + } + +commit f04fb20f2c77850996cba739709acc6faecc58f7 +Author: Thomas Rast +Date: Thu Feb 28 10:44:55 2013 +0100 + + change f() + +diff --git a/a.c b/a.c +--- a/a.c ++++ b/a.c +@@ -3,8 +3,9 @@ + int f(int x) + { + int s = 0; + while (x) { + x >>= 1; + s++; + } ++ return s; + } + +commit de4c48ae814792c02a49c4c3c0c757ae69c55f6a +Author: Thomas Rast +Date: Thu Feb 28 10:44:48 2013 +0100 + + initial + +diff --git a/a.c b/a.c +--- /dev/null ++++ b/a.c +@@ -0,0 +3,8 @@ ++int f(int x) ++{ ++ int s = 0; ++ while (x) { ++ x >>= 1; ++ s++; ++ } ++} -- cgit v1.2.1 From 035ff3987bcbe93a823f47befbe019319c1484b0 Mon Sep 17 00:00:00 2001 From: Thomas Rast Date: Fri, 12 Apr 2013 18:05:09 +0200 Subject: t4211: pass -M to 'git log -M -L...' test Embarrassingly, the -M test did not actually invoke -M, and thus not really test the feature. Signed-off-by: Thomas Rast Signed-off-by: Junio C Hamano --- t/t4211/expect.move-support-f | 56 ++++++++++++++++++++++++++++++++++++------- 1 file changed, 48 insertions(+), 8 deletions(-) (limited to 't/t4211') diff --git a/t/t4211/expect.move-support-f b/t/t4211/expect.move-support-f index 78a8cf1afd..c905e01bc2 100644 --- a/t/t4211/expect.move-support-f +++ b/t/t4211/expect.move-support-f @@ -19,22 +19,62 @@ diff --git a/b.c b/b.c return s; } -commit e6da343666244ea9e67cbe3f3bd26da860f9fe0e +commit a6eb82647d5d67f893da442f8f9375fd89a3b1e2 Author: Thomas Rast -Date: Thu Feb 28 10:49:28 2013 +0100 +Date: Thu Feb 28 10:45:16 2013 +0100 - move file + touch both functions -diff --git a/b.c b/b.c ---- /dev/null -+++ b/b.c -@@ -0,0 +4,9 @@ +diff --git a/a.c b/a.c +--- a/a.c ++++ b/a.c +@@ -3,9 +3,9 @@ +-int f(int x) +long f(long x) + { + int s = 0; + while (x) { + x >>= 1; + s++; + } + return s; + } + +commit f04fb20f2c77850996cba739709acc6faecc58f7 +Author: Thomas Rast +Date: Thu Feb 28 10:44:55 2013 +0100 + + change f() + +diff --git a/a.c b/a.c +--- a/a.c ++++ b/a.c +@@ -3,8 +3,9 @@ + int f(int x) + { + int s = 0; + while (x) { + x >>= 1; + s++; + } ++ return s; + } + +commit de4c48ae814792c02a49c4c3c0c757ae69c55f6a +Author: Thomas Rast +Date: Thu Feb 28 10:44:48 2013 +0100 + + initial + +diff --git a/a.c b/a.c +--- /dev/null ++++ b/a.c +@@ -0,0 +3,8 @@ ++int f(int x) +{ + int s = 0; + while (x) { + x >>= 1; + s++; + } -+ return s; +} -- cgit v1.2.1 From d51c5274e458e9c2545144b6821978ccda85c117 Mon Sep 17 00:00:00 2001 From: Thomas Rast Date: Fri, 12 Apr 2013 18:05:10 +0200 Subject: log -L: test merge of parallel modify/rename This tests a toy example of a history like * Merge | \ | * Modify foo | | * | Rename foo->bar | / * Create foo Current log -L fails on this; we'll fix it in the next commit. Signed-off-by: Thomas Rast Signed-off-by: Junio C Hamano --- t/t4211/expect.parallel-change-f-to-main | 160 +++++++++++++++++++++++++++++++ t/t4211/history.export | 80 +++++++++++++++- 2 files changed, 238 insertions(+), 2 deletions(-) create mode 100644 t/t4211/expect.parallel-change-f-to-main (limited to 't/t4211') diff --git a/t/t4211/expect.parallel-change-f-to-main b/t/t4211/expect.parallel-change-f-to-main new file mode 100644 index 0000000000..052def8074 --- /dev/null +++ b/t/t4211/expect.parallel-change-f-to-main @@ -0,0 +1,160 @@ +commit 0469c60bc4837d52d97b1f081dec5f98dea20fed +Merge: ba227c6 6ce3c4f +Author: Thomas Rast +Date: Fri Apr 12 16:16:24 2013 +0200 + + Merge across the rename + + +commit 6ce3c4ff690136099bb17e1a8766b75764726ea7 +Author: Thomas Rast +Date: Thu Feb 28 10:49:50 2013 +0100 + + another simple change + +diff --git a/b.c b/b.c +--- a/b.c ++++ b/b.c +@@ -4,14 +4,14 @@ + long f(long x) + { + int s = 0; + while (x) { +- x >>= 1; ++ x /= 2; + s++; + } + return s; + } + + /* + * This is only an example! + */ + + +commit ba227c6632349700fbb957dec2b50f5e2358be3f +Author: Thomas Rast +Date: Fri Apr 12 16:15:57 2013 +0200 + + change on another line of history while rename happens + +diff --git a/a.c b/a.c +--- a/a.c ++++ b/a.c +@@ -4,14 +4,14 @@ + long f(long x) + { + int s = 0; + while (x) { + x >>= 1; + s++; + } + return s; + } + + /* +- * This is only an example! ++ * This is only a short example! + */ + + +commit 39b6eb2d5b706d3322184a169f666f25ed3fbd00 +Author: Thomas Rast +Date: Thu Feb 28 10:45:41 2013 +0100 + + touch comment + +diff --git a/a.c b/a.c +--- a/a.c ++++ b/a.c +@@ -3,14 +3,14 @@ + long f(long x) + { + int s = 0; + while (x) { + x >>= 1; + s++; + } + return s; + } + + /* +- * A comment. ++ * This is only an example! + */ + + +commit a6eb82647d5d67f893da442f8f9375fd89a3b1e2 +Author: Thomas Rast +Date: Thu Feb 28 10:45:16 2013 +0100 + + touch both functions + +diff --git a/a.c b/a.c +--- a/a.c ++++ b/a.c +@@ -3,14 +3,14 @@ +-int f(int x) ++long f(long x) + { + int s = 0; + while (x) { + x >>= 1; + s++; + } + return s; + } + + /* + * A comment. + */ + + +commit f04fb20f2c77850996cba739709acc6faecc58f7 +Author: Thomas Rast +Date: Thu Feb 28 10:44:55 2013 +0100 + + change f() + +diff --git a/a.c b/a.c +--- a/a.c ++++ b/a.c +@@ -3,13 +3,14 @@ + int f(int x) + { + int s = 0; + while (x) { + x >>= 1; + s++; + } ++ return s; + } + + /* + * A comment. + */ + + +commit de4c48ae814792c02a49c4c3c0c757ae69c55f6a +Author: Thomas Rast +Date: Thu Feb 28 10:44:48 2013 +0100 + + initial + +diff --git a/a.c b/a.c +--- /dev/null ++++ b/a.c +@@ -0,0 +3,13 @@ ++int f(int x) ++{ ++ int s = 0; ++ while (x) { ++ x >>= 1; ++ s++; ++ } ++} ++ ++/* ++ * A comment. ++ */ ++ diff --git a/t/t4211/history.export b/t/t4211/history.export index c159794740..f9f41e211e 100644 --- a/t/t4211/history.export +++ b/t/t4211/history.export @@ -325,6 +325,82 @@ move within the file from :17 M 100644 :18 b.c -reset refs/heads/master -from :19 +blob +mark :20 +data 243 +#include +#include + +long f(long x) +{ + int s = 0; + while (x) { + x >>= 1; + s++; + } + return s; +} + +/* + * This is only a short example! + */ + +int main () +{ + printf("%ld\n", f(15)); + return 0; +} + +/* incomplete lines are bad! */ + +commit refs/heads/parallel-change +mark :21 +author Thomas Rast 1365776157 +0200 +committer Thomas Rast 1365776157 +0200 +data 55 +change on another line of history while rename happens +from :14 +M 100644 :20 a.c + +blob +mark :22 +data 242 +#include +#include + +long f(long x) +{ + int s = 0; + while (x) { + x /= 2; + s++; + } + return s; +} + +/* + * This is only a short example! + */ + +int main () +{ + printf("%ld\n", f(15)); + return 0; +} + +/* incomplete lines are bad! */ + +commit refs/heads/parallel-change +mark :23 +author Thomas Rast 1365776184 +0200 +committer Thomas Rast 1365776191 +0200 +data 24 +Merge across the rename +from :21 +merge :17 +D a.c +M 100644 :22 b.c + +reset refs/heads/parallel-change +from :23 -- cgit v1.2.1 From 18d472db6fe3909537ceb7e0c54cf01fa3466b8f Mon Sep 17 00:00:00 2001 From: Eric Sunshine Date: Tue, 9 Jul 2013 01:55:04 -0400 Subject: t4211: fix broken test when one -L range is subset of another t4211 attempts to test multiple git-log -L ranges where one range is a superset of the other, and falsely succeeds because its "expected" output is incorrect. Overlapping -L ranges handed to git-log are coalesced by line-log.c:sort_and_merge_range_set() into a set of non-overlapping, disjoint ranges. When one range is a subset of another, sort_and_merge_range_set() should coalesce both ranges to the superset range, but instead the coalesced range often is incorrectly truncated to the end of the subset range. For example, ranges 2-8 and 3-4 are coalesced incorrectly to 2-4. One can observe this incorrect behavior with git-log -L using the test repository created by t4211. The superset/subset ranges t4211 employs are 4-$ and 8-12 (where $ represents end-of-file). The coalesced range should be 4-$. Manually invoking git-log with the same ranges the test employs, we see: % git log -L 4:a.c simple | awk '/^commit [0-9a-f]{40}/ { print substr($2,1,7) }' 4659538 100b61a 39b6eb2 a6eb826 f04fb20 de4c48a % git log -L 8,12:a.c simple | awk ... f04fb20 de4c48a % git log -L 4:a.c -L 8,12:a.c simple | awk ... a6eb826 f04fb20 de4c48a This last output is incorrect. 8-12 is a subset of 4-$, hence the output of the coalesced range should be the same as the 4-$ output shown first. In fact, the above incorrect output is the truncated bogus range 4-12: % git log -L 4,12:a.c simple | awk ... a6eb826 f04fb20 de4c48a Fix the test to correctly fail in the presence of the sort_and_merge_range_set() coalescing bug. Do so by changing the "expected" output to the commits mentioned in the 4-$ output above. Signed-off-by: Eric Sunshine Signed-off-by: Junio C Hamano --- t/t4211/expect.multiple-superset | 134 ++++++++++++++++++++++++++++++++++++++- 1 file changed, 131 insertions(+), 3 deletions(-) (limited to 't/t4211') diff --git a/t/t4211/expect.multiple-superset b/t/t4211/expect.multiple-superset index a1f5bc49c8..d930b6eec4 100644 --- a/t/t4211/expect.multiple-superset +++ b/t/t4211/expect.multiple-superset @@ -1,3 +1,100 @@ +commit 4659538844daa2849b1a9e7d6fadb96fcd26fc83 +Author: Thomas Rast +Date: Thu Feb 28 10:48:43 2013 +0100 + + change back to complete line + +diff --git a/a.c b/a.c +--- a/a.c ++++ b/a.c +@@ -4,19 +4,21 @@ + long f(long x) + { + int s = 0; + while (x) { + x >>= 1; + s++; + } + return s; + } + + /* + * This is only an example! + */ + + int main () + { + printf("%ld\n", f(15)); + return 0; +-} +\ No newline at end of file ++} ++ ++/* incomplete lines are bad! */ + +commit 100b61a6f2f720f812620a9d10afb3a960ccb73c +Author: Thomas Rast +Date: Thu Feb 28 10:48:10 2013 +0100 + + change to an incomplete line at end + +diff --git a/a.c b/a.c +--- a/a.c ++++ b/a.c +@@ -4,19 +4,19 @@ + long f(long x) + { + int s = 0; + while (x) { + x >>= 1; + s++; + } + return s; + } + + /* + * This is only an example! + */ + + int main () + { + printf("%ld\n", f(15)); + return 0; +-} ++} +\ No newline at end of file + +commit 39b6eb2d5b706d3322184a169f666f25ed3fbd00 +Author: Thomas Rast +Date: Thu Feb 28 10:45:41 2013 +0100 + + touch comment + +diff --git a/a.c b/a.c +--- a/a.c ++++ b/a.c +@@ -3,19 +3,19 @@ + long f(long x) + { + int s = 0; + while (x) { + x >>= 1; + s++; + } + return s; + } + + /* +- * A comment. ++ * This is only an example! + */ + + int main () + { + printf("%ld\n", f(15)); + return 0; + } + commit a6eb82647d5d67f893da442f8f9375fd89a3b1e2 Author: Thomas Rast Date: Thu Feb 28 10:45:16 2013 +0100 @@ -7,7 +104,7 @@ Date: Thu Feb 28 10:45:16 2013 +0100 diff --git a/a.c b/a.c --- a/a.c +++ b/a.c -@@ -3,9 +3,9 @@ +@@ -3,19 +3,19 @@ -int f(int x) +long f(long x) { @@ -18,6 +115,17 @@ diff --git a/a.c b/a.c } return s; } + + /* + * A comment. + */ + + int main () + { +- printf("%d\n", f(15)); ++ printf("%ld\n", f(15)); + return 0; + } commit f04fb20f2c77850996cba739709acc6faecc58f7 Author: Thomas Rast @@ -28,7 +136,7 @@ Date: Thu Feb 28 10:44:55 2013 +0100 diff --git a/a.c b/a.c --- a/a.c +++ b/a.c -@@ -3,8 +3,9 @@ +@@ -3,18 +3,19 @@ int f(int x) { int s = 0; @@ -38,6 +146,16 @@ diff --git a/a.c b/a.c } + return s; } + + /* + * A comment. + */ + + int main () + { + printf("%d\n", f(15)); + return 0; + } commit de4c48ae814792c02a49c4c3c0c757ae69c55f6a Author: Thomas Rast @@ -48,7 +166,7 @@ Date: Thu Feb 28 10:44:48 2013 +0100 diff --git a/a.c b/a.c --- /dev/null +++ b/a.c -@@ -0,0 +3,8 @@ +@@ -0,0 +3,18 @@ +int f(int x) +{ + int s = 0; @@ -57,3 +175,13 @@ diff --git a/a.c b/a.c + s++; + } +} ++ ++/* ++ * A comment. ++ */ ++ ++int main () ++{ ++ printf("%d\n", f(15)); ++ return 0; ++} -- cgit v1.2.1