From cdffbdc217aba8a39d786a642d1376a5a605adec Mon Sep 17 00:00:00 2001 From: Eric Sunshine Date: Tue, 8 Sep 2020 03:16:08 -0400 Subject: diff: move show_interdiff() from its own file to diff-lib show_interdiff() is a relatively small function and not likely to grow larger or more complicated. Rather than dedicating an entire source file to it, relocate it to diff-lib.c which houses other "take two things and compare them" functions meant to be re-used but not so low-level as to reside in the core diff implementation. Signed-off-by: Eric Sunshine Signed-off-by: Junio C Hamano diff --git a/Makefile b/Makefile index 86e5411..cf47141 100644 --- a/Makefile +++ b/Makefile @@ -883,7 +883,6 @@ LIB_OBJS += hashmap.o LIB_OBJS += help.o LIB_OBJS += hex.o LIB_OBJS += ident.o -LIB_OBJS += interdiff.o LIB_OBJS += json-writer.o LIB_OBJS += kwset.o LIB_OBJS += levenshtein.o diff --git a/builtin/log.c b/builtin/log.c index b58f8da..ae9380d 100644 --- a/builtin/log.c +++ b/builtin/log.c @@ -33,7 +33,6 @@ #include "commit-slab.h" #include "repository.h" #include "commit-reach.h" -#include "interdiff.h" #include "range-diff.h" #define MAIL_DEFAULT_WRAP 72 diff --git a/diff-lib.c b/diff-lib.c index 50521e2..9bab907 100644 --- a/diff-lib.c +++ b/diff-lib.c @@ -571,3 +571,27 @@ int index_differs_from(struct repository *r, object_array_clear(&rev.pending); return (rev.diffopt.flags.has_changes != 0); } + +static struct strbuf *idiff_prefix_cb(struct diff_options *opt, void *data) +{ + return data; +} + +void show_interdiff(struct rev_info *rev, int indent) +{ + struct diff_options opts; + struct strbuf prefix = STRBUF_INIT; + + memcpy(&opts, &rev->diffopt, sizeof(opts)); + opts.output_format = DIFF_FORMAT_PATCH; + opts.output_prefix = idiff_prefix_cb; + strbuf_addchars(&prefix, ' ', indent); + opts.output_prefix_data = &prefix; + diff_setup_done(&opts); + + diff_tree_oid(rev->idiff_oid1, rev->idiff_oid2, "", &opts); + diffcore_std(&opts); + diff_flush(&opts); + + strbuf_release(&prefix); +} diff --git a/diff.h b/diff.h index e0c0af6..308937c 100644 --- a/diff.h +++ b/diff.h @@ -600,6 +600,8 @@ int index_differs_from(struct repository *r, const char *def, const struct diff_flags *flags, int ita_invisible_in_index); +void show_interdiff(struct rev_info *, int indent); + /* * Fill the contents of the filespec "df", respecting any textconv defined by * its userdiff driver. The "driver" parameter must come from a diff --git a/interdiff.c b/interdiff.c deleted file mode 100644 index c81d680..0000000 --- a/interdiff.c +++ /dev/null @@ -1,28 +0,0 @@ -#include "cache.h" -#include "commit.h" -#include "revision.h" -#include "interdiff.h" - -static struct strbuf *idiff_prefix_cb(struct diff_options *opt, void *data) -{ - return data; -} - -void show_interdiff(struct rev_info *rev, int indent) -{ - struct diff_options opts; - struct strbuf prefix = STRBUF_INIT; - - memcpy(&opts, &rev->diffopt, sizeof(opts)); - opts.output_format = DIFF_FORMAT_PATCH; - opts.output_prefix = idiff_prefix_cb; - strbuf_addchars(&prefix, ' ', indent); - opts.output_prefix_data = &prefix; - diff_setup_done(&opts); - - diff_tree_oid(rev->idiff_oid1, rev->idiff_oid2, "", &opts); - diffcore_std(&opts); - diff_flush(&opts); - - strbuf_release(&prefix); -} diff --git a/interdiff.h b/interdiff.h deleted file mode 100644 index 01c730a..0000000 --- a/interdiff.h +++ /dev/null @@ -1,8 +0,0 @@ -#ifndef INTERDIFF_H -#define INTERDIFF_H - -struct rev_info; - -void show_interdiff(struct rev_info *, int indent); - -#endif diff --git a/log-tree.c b/log-tree.c index 55a68d0..39bb362 100644 --- a/log-tree.c +++ b/log-tree.c @@ -15,7 +15,6 @@ #include "sequencer.h" #include "line-log.h" #include "help.h" -#include "interdiff.h" #include "range-diff.h" static struct decoration name_decoration = { "object names" }; -- cgit v0.10.2-6-g49f6 From 72a7239016fa4c8919a8b6932ad76e5f820389eb Mon Sep 17 00:00:00 2001 From: Eric Sunshine Date: Tue, 8 Sep 2020 03:16:09 -0400 Subject: diff-lib: tighten show_interdiff()'s interface To compute and show an interdiff, show_interdiff() needs only the two OID's to compare and a diffopts, yet it expects callers to supply an entire rev_info. The demand for rev_info is not only overkill, but also places unnecessary burden on potential future callers which might not otherwise have a rev_info at hand. Address this by tightening its signature to require only the items it needs instead of a full rev_info. Signed-off-by: Eric Sunshine Signed-off-by: Junio C Hamano diff --git a/builtin/log.c b/builtin/log.c index ae9380d..37177b3 100644 --- a/builtin/log.c +++ b/builtin/log.c @@ -1206,7 +1206,8 @@ static void make_cover_letter(struct rev_info *rev, int use_stdout, if (rev->idiff_oid1) { fprintf_ln(rev->diffopt.file, "%s", rev->idiff_title); - show_interdiff(rev, 0); + show_interdiff(rev->idiff_oid1, rev->idiff_oid2, 0, + &rev->diffopt); } if (rev->rdiff1) { diff --git a/diff-lib.c b/diff-lib.c index 9bab907..a17becc 100644 --- a/diff-lib.c +++ b/diff-lib.c @@ -577,19 +577,20 @@ static struct strbuf *idiff_prefix_cb(struct diff_options *opt, void *data) return data; } -void show_interdiff(struct rev_info *rev, int indent) +void show_interdiff(const struct object_id *oid1, const struct object_id *oid2, + int indent, struct diff_options *diffopt) { struct diff_options opts; struct strbuf prefix = STRBUF_INIT; - memcpy(&opts, &rev->diffopt, sizeof(opts)); + memcpy(&opts, diffopt, sizeof(opts)); opts.output_format = DIFF_FORMAT_PATCH; opts.output_prefix = idiff_prefix_cb; strbuf_addchars(&prefix, ' ', indent); opts.output_prefix_data = &prefix; diff_setup_done(&opts); - diff_tree_oid(rev->idiff_oid1, rev->idiff_oid2, "", &opts); + diff_tree_oid(oid1, oid2, "", &opts); diffcore_std(&opts); diff_flush(&opts); diff --git a/diff.h b/diff.h index 308937c..49242d2 100644 --- a/diff.h +++ b/diff.h @@ -600,7 +600,12 @@ int index_differs_from(struct repository *r, const char *def, const struct diff_flags *flags, int ita_invisible_in_index); -void show_interdiff(struct rev_info *, int indent); +/* + * Emit an interdiff of two object ID's to 'diff_options.file' optionally + * indented by 'indent' spaces. + */ +void show_interdiff(const struct object_id *, const struct object_id *, + int indent, struct diff_options *); /* * Fill the contents of the filespec "df", respecting any textconv defined by diff --git a/log-tree.c b/log-tree.c index 39bb362..ad1e7e3 100644 --- a/log-tree.c +++ b/log-tree.c @@ -799,7 +799,8 @@ void show_log(struct rev_info *opt) next_commentary_block(opt, NULL); fprintf_ln(opt->diffopt.file, "%s", opt->idiff_title); - show_interdiff(opt, 2); + show_interdiff(opt->idiff_oid1, opt->idiff_oid2, 2, + &opt->diffopt); memcpy(&diff_queued_diff, &dq, sizeof(diff_queued_diff)); } -- cgit v0.10.2-6-g49f6 From 07a7f8debfa43bd28537f475925776a92c30a678 Mon Sep 17 00:00:00 2001 From: Eric Sunshine Date: Tue, 8 Sep 2020 03:16:10 -0400 Subject: format-patch: use 'origin' as start of current-series-range when known When formatting a patch series over `origin..HEAD`, one would expect that range to be used as the current-series-range when computing a range-diff between the previous and current versions of a patch series. However, infer_range_diff_ranges() ignores `origin..HEAD` when --range-diff= specifies a single revision rather than a range, and instead unexpectedly computes the current-series-range based upon . Address this anomaly by unconditionally using `origin..HEAD` as the current-series-range regardless of as long as `origin` is known, and only fall back to basing current-series-range on when `origin` is not known. Signed-off-by: Eric Sunshine Signed-off-by: Junio C Hamano diff --git a/builtin/log.c b/builtin/log.c index 37177b3..f79b2b8 100644 --- a/builtin/log.c +++ b/builtin/log.c @@ -1595,16 +1595,20 @@ static void infer_range_diff_ranges(struct strbuf *r1, struct commit *head) { const char *head_oid = oid_to_hex(&head->object.oid); + int prev_is_range = !!strstr(prev, ".."); - if (!strstr(prev, "..")) { + if (prev_is_range) + strbuf_addstr(r1, prev); + else strbuf_addf(r1, "%s..%s", head_oid, prev); + + if (origin) + strbuf_addf(r2, "%s..%s", oid_to_hex(&origin->object.oid), head_oid); + else if (prev_is_range) + die(_("failed to infer range-diff origin of current series")); + else { + warning(_("using '%s' as range-diff origin of current series"), prev); strbuf_addf(r2, "%s..%s", prev, head_oid); - } else if (!origin) { - die(_("failed to infer range-diff ranges")); - } else { - strbuf_addstr(r1, prev); - strbuf_addf(r2, "%s..%s", - oid_to_hex(&origin->object.oid), head_oid); } } -- cgit v0.10.2-6-g49f6