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diff --git a/development/git.html b/development/git.html new file mode 100644 index 0000000..2e9f601 --- /dev/null +++ b/development/git.html @@ -0,0 +1,429 @@ +<!DOCTYPE HTML> +<html lang="en" class="light" dir="ltr"> + <head> + <!-- Book generated using mdBook --> + <meta charset="UTF-8"> + <title>git - Notes</title> + + + <!-- Custom HTML head --> + + <meta name="description" content=""> + <meta name="viewport" content="width=device-width, initial-scale=1"> + <meta name="theme-color" content="#ffffff"> + + <link rel="icon" href="../favicon.svg"> + <link rel="shortcut icon" href="../favicon.png"> + <link rel="stylesheet" href="../css/variables.css"> + <link rel="stylesheet" href="../css/general.css"> + <link rel="stylesheet" href="../css/chrome.css"> + <link rel="stylesheet" href="../css/print.css" media="print"> + + <!-- Fonts --> + <link rel="stylesheet" href="../FontAwesome/css/font-awesome.css"> + <link rel="stylesheet" href="../fonts/fonts.css"> + + <!-- Highlight.js Stylesheets --> + <link rel="stylesheet" href="../highlight.css"> + <link rel="stylesheet" href="../tomorrow-night.css"> + <link rel="stylesheet" href="../ayu-highlight.css"> + + <!-- Custom theme stylesheets --> + + </head> + <body class="sidebar-visible no-js"> + <div id="body-container"> + <!-- Provide site root to javascript --> + <script> + var path_to_root = "../"; + var default_theme = window.matchMedia("(prefers-color-scheme: dark)").matches ? "navy" : "light"; + </script> + + <!-- Work around some values being stored in localStorage wrapped in quotes --> + <script> + try { + var theme = localStorage.getItem('mdbook-theme'); + var sidebar = localStorage.getItem('mdbook-sidebar'); + + if (theme.startsWith('"') && theme.endsWith('"')) { + localStorage.setItem('mdbook-theme', theme.slice(1, theme.length - 1)); + } + + if (sidebar.startsWith('"') && sidebar.endsWith('"')) { + localStorage.setItem('mdbook-sidebar', sidebar.slice(1, sidebar.length - 1)); + } + } catch (e) { } + </script> + + <!-- Set the theme before any content is loaded, prevents flash --> + <script> + var theme; + try { theme = localStorage.getItem('mdbook-theme'); } catch(e) { } + if (theme === null || theme === undefined) { theme = default_theme; } + var html = document.querySelector('html'); + html.classList.remove('light') + html.classList.add(theme); + var body = document.querySelector('body'); + body.classList.remove('no-js') + body.classList.add('js'); + </script> + + <input type="checkbox" id="sidebar-toggle-anchor" class="hidden"> + + <!-- Hide / unhide sidebar before it is displayed --> + <script> + var body = document.querySelector('body'); + var sidebar = null; + var sidebar_toggle = document.getElementById("sidebar-toggle-anchor"); + if (document.body.clientWidth >= 1080) { + try { sidebar = localStorage.getItem('mdbook-sidebar'); } catch(e) { } + sidebar = sidebar || 'visible'; + } else { + sidebar = 'hidden'; + } + sidebar_toggle.checked = sidebar === 'visible'; + body.classList.remove('sidebar-visible'); + body.classList.add("sidebar-" + sidebar); + </script> + + <nav id="sidebar" class="sidebar" aria-label="Table of contents"> + <div class="sidebar-scrollbox"> + <ol class="chapter"><li class="chapter-item expanded affix "><a href="../intro.html">Introduction</a></li><li class="chapter-item expanded "><a href="../shells/index.html"><strong aria-hidden="true">1.</strong> Shells</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../shells/zsh.html"><strong aria-hidden="true">1.1.</strong> zsh</a></li><li class="chapter-item expanded "><a href="../shells/bash.html"><strong aria-hidden="true">1.2.</strong> bash</a></li><li class="chapter-item expanded "><a href="../shells/fish.html"><strong aria-hidden="true">1.3.</strong> fish</a></li></ol></li><li class="chapter-item expanded "><a href="../cli/index.html"><strong aria-hidden="true">2.</strong> CLI foo</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../cli/awk.html"><strong aria-hidden="true">2.1.</strong> awk</a></li><li class="chapter-item expanded "><a href="../cli/sed.html"><strong aria-hidden="true">2.2.</strong> sed</a></li><li class="chapter-item expanded "><a href="../cli/column.html"><strong aria-hidden="true">2.3.</strong> column</a></li><li class="chapter-item expanded "><a href="../cli/sort.html"><strong aria-hidden="true">2.4.</strong> sort</a></li><li class="chapter-item expanded "><a href="../cli/tr.html"><strong aria-hidden="true">2.5.</strong> tr</a></li></ol></li><li class="chapter-item expanded "><a href="../tools/index.html"><strong aria-hidden="true">3.</strong> Tools</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../tools/tmux.html"><strong aria-hidden="true">3.1.</strong> tmux</a></li><li class="chapter-item expanded "><a href="../tools/emacs.html"><strong aria-hidden="true">3.2.</strong> emacs</a></li><li class="chapter-item expanded "><a href="../tools/gpg.html"><strong aria-hidden="true">3.3.</strong> gpg</a></li><li class="chapter-item expanded "><a href="../tools/radare2.html"><strong aria-hidden="true">3.4.</strong> radare2</a></li><li class="chapter-item expanded "><a href="../tools/qemu.html"><strong aria-hidden="true">3.5.</strong> qemu</a></li><li class="chapter-item expanded "><a href="../tools/pacman.html"><strong aria-hidden="true">3.6.</strong> pacman</a></li><li class="chapter-item expanded "><a href="../tools/dot.html"><strong aria-hidden="true">3.7.</strong> dot</a></li><li class="chapter-item expanded "><a href="../tools/ffmpeg.html"><strong aria-hidden="true">3.8.</strong> ffmpeg</a></li><li class="chapter-item expanded "><a href="../tools/gnuplot.html"><strong aria-hidden="true">3.9.</strong> gnuplot</a></li><li class="chapter-item expanded "><a href="../tools/restic.html"><strong aria-hidden="true">3.10.</strong> restic</a></li></ol></li><li class="chapter-item expanded "><a href="../monitor/index.html"><strong aria-hidden="true">4.</strong> Resource analysis & monitor</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../monitor/lsof.html"><strong aria-hidden="true">4.1.</strong> lsof</a></li><li class="chapter-item expanded "><a href="../monitor/pidstat.html"><strong aria-hidden="true">4.2.</strong> pidstat</a></li><li class="chapter-item expanded "><a href="../monitor/pgrep.html"><strong aria-hidden="true">4.3.</strong> pgrep</a></li><li class="chapter-item expanded "><a href="../monitor/ps.html"><strong aria-hidden="true">4.4.</strong> ps</a></li><li class="chapter-item expanded "><a href="../monitor/pmap.html"><strong aria-hidden="true">4.5.</strong> pmap</a></li><li class="chapter-item expanded "><a href="../monitor/pstack.html"><strong aria-hidden="true">4.6.</strong> pstack</a></li></ol></li><li class="chapter-item expanded "><a href="../trace_profile/index.html"><strong aria-hidden="true">5.</strong> Trace and Profile</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../trace_profile/time.html"><strong aria-hidden="true">5.1.</strong> time</a></li><li class="chapter-item expanded "><a href="../trace_profile/strace.html"><strong aria-hidden="true">5.2.</strong> strace</a></li><li class="chapter-item expanded "><a href="../trace_profile/ltrace.html"><strong aria-hidden="true">5.3.</strong> ltrace</a></li><li class="chapter-item expanded "><a href="../trace_profile/perf.html"><strong aria-hidden="true">5.4.</strong> perf</a></li><li class="chapter-item expanded "><a href="../trace_profile/oprofile.html"><strong aria-hidden="true">5.5.</strong> OProfile</a></li><li class="chapter-item expanded "><a href="../trace_profile/callgrind.html"><strong aria-hidden="true">5.6.</strong> callgrind</a></li></ol></li><li class="chapter-item expanded "><a href="../debug/index.html"><strong aria-hidden="true">6.</strong> Debug</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../debug/gdb.html"><strong aria-hidden="true">6.1.</strong> gdb</a></li><li class="chapter-item expanded "><a href="../debug/gdbserver.html"><strong aria-hidden="true">6.2.</strong> gdbserver</a></li></ol></li><li class="chapter-item expanded "><a href="../binary/index.html"><strong aria-hidden="true">7.</strong> Binary</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../binary/od.html"><strong aria-hidden="true">7.1.</strong> od</a></li><li class="chapter-item expanded "><a href="../binary/xxd.html"><strong aria-hidden="true">7.2.</strong> xxd</a></li><li class="chapter-item expanded "><a href="../binary/readelf.html"><strong aria-hidden="true">7.3.</strong> readelf</a></li><li class="chapter-item expanded "><a href="../binary/objdump.html"><strong aria-hidden="true">7.4.</strong> objdump</a></li><li class="chapter-item expanded "><a href="../binary/nm.html"><strong aria-hidden="true">7.5.</strong> nm</a></li></ol></li><li class="chapter-item expanded "><a href="../development/index.html"><strong aria-hidden="true">8.</strong> Development</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../development/c++filt.html"><strong aria-hidden="true">8.1.</strong> c++filt</a></li><li class="chapter-item expanded "><a href="../development/c++.html"><strong aria-hidden="true">8.2.</strong> c++</a></li><li class="chapter-item expanded "><a href="../development/glibc.html"><strong aria-hidden="true">8.3.</strong> glibc</a></li><li class="chapter-item expanded "><a href="../development/gcc.html"><strong aria-hidden="true">8.4.</strong> gcc</a></li><li class="chapter-item expanded "><a href="../development/git.html" class="active"><strong aria-hidden="true">8.5.</strong> git</a></li><li class="chapter-item expanded "><a href="../development/cmake.html"><strong aria-hidden="true">8.6.</strong> cmake</a></li><li class="chapter-item expanded "><a href="../development/make.html"><strong aria-hidden="true">8.7.</strong> make</a></li><li class="chapter-item expanded "><a href="../development/ld.so.html"><strong aria-hidden="true">8.8.</strong> ld.so</a></li><li class="chapter-item expanded "><a href="../development/symbolver.html"><strong aria-hidden="true">8.9.</strong> symbol versioning</a></li><li class="chapter-item expanded "><a href="../development/python.html"><strong aria-hidden="true">8.10.</strong> python</a></li><li class="chapter-item expanded "><a href="../development/gcov.html"><strong aria-hidden="true">8.11.</strong> gcov</a></li><li class="chapter-item expanded "><a href="../development/pgo.html"><strong aria-hidden="true">8.12.</strong> pgo</a></li></ol></li><li class="chapter-item expanded "><a href="../linux/index.html"><strong aria-hidden="true">9.</strong> Linux</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../linux/systemd.html"><strong aria-hidden="true">9.1.</strong> systemd</a></li><li class="chapter-item expanded "><a href="../linux/coredump.html"><strong aria-hidden="true">9.2.</strong> coredump</a></li><li class="chapter-item expanded "><a href="../linux/ptrace_scope.html"><strong aria-hidden="true">9.3.</strong> ptrace_scope</a></li><li class="chapter-item expanded "><a href="../linux/cryptsetup.html"><strong aria-hidden="true">9.4.</strong> cryptsetup</a></li><li class="chapter-item expanded "><a href="../linux/swap.html"><strong aria-hidden="true">9.5.</strong> swap</a></li><li class="chapter-item expanded "><a href="../linux/input.html"><strong aria-hidden="true">9.6.</strong> input</a></li><li class="chapter-item expanded "><a href="../linux/acl.html"><strong aria-hidden="true">9.7.</strong> acl</a></li><li class="chapter-item expanded "><a href="../linux/zfs.html"><strong aria-hidden="true">9.8.</strong> zfs</a></li></ol></li><li class="chapter-item expanded "><a href="../network/index.html"><strong aria-hidden="true">10.</strong> Network</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../network/ss.html"><strong aria-hidden="true">10.1.</strong> ss</a></li><li class="chapter-item expanded "><a href="../network/tcpdump.html"><strong aria-hidden="true">10.2.</strong> tcpdump</a></li><li class="chapter-item expanded "><a href="../network/tshark.html"><strong aria-hidden="true">10.3.</strong> tshark</a></li><li class="chapter-item expanded "><a href="../network/firewall-cmd.html"><strong aria-hidden="true">10.4.</strong> firewall-cmd</a></li><li class="chapter-item expanded "><a href="../network/nftables.html"><strong aria-hidden="true">10.5.</strong> nftables</a></li></ol></li><li class="chapter-item expanded "><a href="../web/index.html"><strong aria-hidden="true">11.</strong> Web</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../web/html.html"><strong aria-hidden="true">11.1.</strong> html</a></li><li class="chapter-item expanded "><a href="../web/css.html"><strong aria-hidden="true">11.2.</strong> css</a></li><li class="chapter-item expanded "><a href="../web/chartjs.html"><strong aria-hidden="true">11.3.</strong> chartjs</a></li></ol></li><li class="chapter-item expanded "><a href="../arch/index.html"><strong aria-hidden="true">12.</strong> Arch</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../arch/x86_64.html"><strong aria-hidden="true">12.1.</strong> x86_64</a></li><li class="chapter-item expanded "><a href="../arch/armv8.html"><strong aria-hidden="true">12.2.</strong> armv8</a></li><li class="chapter-item expanded "><a href="../arch/arm64.html"><strong aria-hidden="true">12.3.</strong> arm64</a></li><li class="chapter-item expanded "><a href="../arch/armv7.html"><strong aria-hidden="true">12.4.</strong> armv7</a></li><li class="chapter-item expanded "><a href="../arch/riscv.html"><strong aria-hidden="true">12.5.</strong> riscv</a></li></ol></li></ol> + </div> + <div id="sidebar-resize-handle" class="sidebar-resize-handle"> + <div class="sidebar-resize-indicator"></div> + </div> + </nav> + + <!-- Track and set sidebar scroll position --> + <script> + var sidebarScrollbox = document.querySelector('#sidebar .sidebar-scrollbox'); + sidebarScrollbox.addEventListener('click', function(e) { + if (e.target.tagName === 'A') { + sessionStorage.setItem('sidebar-scroll', sidebarScrollbox.scrollTop); + } + }, { passive: true }); + var sidebarScrollTop = sessionStorage.getItem('sidebar-scroll'); + sessionStorage.removeItem('sidebar-scroll'); + if (sidebarScrollTop) { + // preserve sidebar scroll position when navigating via links within sidebar + sidebarScrollbox.scrollTop = sidebarScrollTop; + } else { + // scroll sidebar to current active section when navigating via "next/previous chapter" buttons + var activeSection = document.querySelector('#sidebar .active'); + if (activeSection) { + activeSection.scrollIntoView({ block: 'center' }); + } + } + </script> + + <div id="page-wrapper" class="page-wrapper"> + + <div class="page"> + <div id="menu-bar-hover-placeholder"></div> + <div id="menu-bar" class="menu-bar sticky"> + <div class="left-buttons"> + <label id="sidebar-toggle" class="icon-button" for="sidebar-toggle-anchor" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar"> + <i class="fa fa-bars"></i> + </label> + <button id="theme-toggle" class="icon-button" type="button" title="Change theme" aria-label="Change theme" 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(Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar"> + <i class="fa fa-search"></i> + </button> + </div> + + <h1 class="menu-title">Notes</h1> + + <div class="right-buttons"> + <a href="../print.html" title="Print this book" aria-label="Print this book"> + <i id="print-button" class="fa fa-print"></i> + </a> + <a href="https://github.com/johannst/notes" title="Git repository" aria-label="Git repository"> + <i id="git-repository-button" class="fa fa-github"></i> + </a> + + </div> + </div> + + <div id="search-wrapper" class="hidden"> + <form id="searchbar-outer" class="searchbar-outer"> + <input type="search" id="searchbar" name="searchbar" placeholder="Search this book ..." aria-controls="searchresults-outer" aria-describedby="searchresults-header"> + </form> + <div id="searchresults-outer" class="searchresults-outer hidden"> + <div id="searchresults-header" class="searchresults-header"></div> + <ul id="searchresults"> + </ul> + </div> + </div> + + <!-- Apply ARIA attributes after the sidebar and the sidebar toggle button are added to the DOM --> + <script> + document.getElementById('sidebar-toggle').setAttribute('aria-expanded', sidebar === 'visible'); + document.getElementById('sidebar').setAttribute('aria-hidden', sidebar !== 'visible'); + Array.from(document.querySelectorAll('#sidebar a')).forEach(function(link) { + link.setAttribute('tabIndex', sidebar === 'visible' ? 0 : -1); + }); + </script> + + <div id="content" class="content"> + <main> + <h1 id="git1"><a class="header" href="#git1">git(1)</a></h1> +<h2 id="working-areas"><a class="header" href="#working-areas">Working areas</a></h2> +<pre><code class="language-text">+-------------------+ --- stash -----> +-------+ +| working directory | | stash | // Shelving area. ++-------------------+ <-- stash pop -- +-------+ + | ^ + add | + | reset + v | ++-------------------+ +| staging area | ++-------------------+ + | + commit + | + v ++-------------------+ +| local repository | ++-------------------+ + | ^ + push | + | fetch / + | pull + v | ++-------------------+ +| remote repository | ++-------------------+ +</code></pre> +<h2 id="config"><a class="header" href="#config">Config</a></h2> +<pre><code class="language-markdown"> git config --list --show-origin ..... list currently set configs and where + they are coming from + git --edit [--global] ............... open config in editor (local or global) +</code></pre> +<h2 id="clean"><a class="header" href="#clean">Clean</a></h2> +<pre><code class="language-markdown"> git clean -X ......... remove only ignored files (-n for dry run) + git clean -f -d -x ... remove untracked & ignored files / folders + git clean -e <pat> ... exclude pattern from deletion +</code></pre> +<h2 id="staging"><a class="header" href="#staging">Staging</a></h2> +<pre><code class="language-markdown"> git add -p [<file>] ............ partial staging (interactive) +</code></pre> +<h2 id="remote"><a class="header" href="#remote">Remote</a></h2> +<pre><code class="language-markdown"> git remote -v .................. list remotes verbose (with URLs) + git remote show [-n] <remote> .. list info for <remote> (like remote HEAD, + remote branches, tracking mapping) +</code></pre> +<h2 id="branching"><a class="header" href="#branching">Branching</a></h2> +<pre><code class="language-markdown"> git branch [-a] ................ list available branches; -a to include + remote branches + git branch -vv ................. list branch & annotate with head sha1 & + remote tracking branch + git branch <bname> ............. create local branch with name <bname> + git branch -d <bname> .......... delete local branch with name <bname> + git checkout <bname> ........... switch to branch with name <bname> + git checkout --track <branch> .. start to locally track a remote branch + git branch --unset-upstream .... unset remote tracking branch + + # Remote + + git push -u origin <rbname> ........ push local branch to origin (or other + remote), and setup <rbname> as tracking + branch + git push origin --delete <rbname> .. delete branch <rbname> from origin (or + other remote) +</code></pre> +<h2 id="update-local-from-remote"><a class="header" href="#update-local-from-remote">Update local from remote</a></h2> +<pre><code class="language-markdown"> git fetch --prune .................. update all remote references and + remove delete non-existing ones + (does not merge into local tracking branch) + git pull [--rebase] ................ fetch remote references and merge into + local tracking branch (fast-forward by default). + Optionally rebase local tracking branch + on-top of remote branch (in case local + branch has additional commits compared to remote branch). +</code></pre> +<h2 id="tags"><a class="header" href="#tags">Tags</a></h2> +<pre><code class="language-markdown"> git tag -a <tname> -m "descr" ........ creates an annotated tag (full object + containing tagger, date, ...) + git tag -l ........................... list available tags + git checkout tag/<tname> ............. checkout specific tag + git checkout tag/<tname> -b <bname> .. checkout specific tag in a new branch + + # Remote + + git push origin --tags .... push local tags to origin (or other remote) +</code></pre> +<h2 id="merging"><a class="header" href="#merging">Merging</a></h2> +<pre><code class="language-markdown"> git merge [opt] <commit> .... integrate changes from <commit> since + opt: current branch and <commit> diverged + --squash ................ merge all commits into a single one + --no-commit ............. dont generate commit if the merge succeeds + + git merge-base <commit> <commit> + get the common ancestor, since both commits diverged + + git rebase -i <upstream> .... interactively rebase on <upstream>, also supports actions + like squashing, editing, rewording, etc of commits + + git cherry-pick <commit> .... apply commit on current branch +</code></pre> +<h2 id="worktree"><a class="header" href="#worktree">Worktree</a></h2> +<p>Worktrees allow to maintain multiple working trees in the filesystem linked to +the same repository (shared .git folder).</p> +<pre><code class="language-markdown"> git worktree add <path> .............. create a tree at <path> with a new branch + checked out (bname is basename of <path>) + git worktree add <path> <bname> ...... create a tree at <path> from existing <bname> + git worktree list .................... list existing work trees + git worktree remove <tree> ........... remove work tree + git worktree prune ................... remove stale bookkeeping files +</code></pre> +<h2 id="log--commit-history"><a class="header" href="#log--commit-history">Log & Commit History</a></h2> +<pre><code class="language-markdown"> git log --oneline ......... shows log in single line per commit -> alias for + '--pretty=oneline --abbrev-commit' + git log --graph ........... text based graph of commit history + git log --decorate ........ decorate log with REFs + + git log -p <file> ......... show commit history + diffs for <file> + git log --oneline <file> .. show commit history for <file> in compact format +</code></pre> +<h2 id="diff--commit-info"><a class="header" href="#diff--commit-info">Diff & Commit Info</a></h2> +<pre><code class="language-markdown"> git diff <commit>..<commit> [<file>] .... show changes between two arbitrary + commits. If one <commit> is omitted + it is if HEAD is specified. + git diff --name-only <commit>..<commit> . show names of files changed + git diff -U$(wc -l <file>) <file> ....... shows complete file with diffs + instead of usual diff snippets + git diff --staged ....................... show diffs of staged files + + git show --stat <commit> ................ show files changed by <commit> + git show <commit> [<file>] .............. show diffs for <commit> + + git show <commit>:<file> ................ show <file> at <commit> +</code></pre> +<h2 id="patching"><a class="header" href="#patching">Patching</a></h2> +<pre><code class="language-markdown"> git format-patch <opt> <since>/<revision range> + opt: + -N ................... use [PATCH] instead [PATCH n/m] in subject when + generating patch description (for patches spanning + multiple commits) + --start-number <n> ... start output file generation with <n> as start + number instead '1' + since spcifier: + -3 .................. e.g: create a patch from last three commits + <commit hash> ....... create patch with commits starting after <commit hash> + + git am <patch> ......... apply patch and create a commit for it + + git apply --stat <PATCH> ... see which files the patch would change + git apply --check <PATCH> .. see if the patch can be applied cleanly + git apply [-3] <PATCH> ..... apply the patch locally without creating a commit, + if the patch does not cleanly apply -3 allows for + a 3-way merge + + # eg: generate patches for each commit from initial commit on + git format-patch -N $(git rev-list --max-parents=0 HEAD) + + # generate single patch file from a certain commit/ref + git format-patch <COMMIT/REF> --stdout > my-patch.patch +</code></pre> +<h2 id="resetting"><a class="header" href="#resetting">Resetting</a></h2> +<pre><code class="language-markdown"> git reset [opt] <ref|commit> + opt: + --mixed .................... resets index, but not working tree + --hard ..................... matches the working tree and index to that + of the tree being switched to any changes to + tracked files in the working tree since + <commit> are lost + git reset HEAD <file> .......... remove file from staging + git reset --soft HEAD~1 ........ delete most recent commit but keep work + git reset --hard HEAD~1 ........ delete most recent commit and delete work +</code></pre> +<h2 id="submodules"><a class="header" href="#submodules">Submodules</a></h2> +<pre><code class="language-markdown"> git submodule add <url> [<path>] .......... add new submodule to current project + git clone --recursive <url> ............... clone project and recursively all + submodules (same as using + 'git submodule update --init + --recursive' after clone) + git submodule update --init --recursive ... checkout submodules recursively + using the commit listed in the + super-project (in detached HEAD) + git submodule update --remote <submod> .... fetch & merge remote changes for + <submod>, this will pull + origin/HEAD or a branch specified + for the submodule + git diff --submodule ...................... show commits that are part of the + submodule diff +</code></pre> +<h2 id="inspection"><a class="header" href="#inspection">Inspection</a></h2> +<pre><code class="language-markdown"> git ls-tree [-r] <ref> .... show git tree for <ref>, -r to recursively ls sub-trees + git show <obj> ............ show <obj> + git cat-file -p <obj> ..... print content of <obj> +</code></pre> +<h2 id="revision-specifier"><a class="header" href="#revision-specifier">Revision Specifier</a></h2> +<pre><code class="language-markdown"> HEAD ........ last commit + HEAD~1 ...... last commit-1 + HEAD~N ...... last commit-N (linear backwards when in tree structure, check + difference between HEAD^ and HEAD~) + git rev-list --max-parents=0 HEAD ........... first commit +</code></pre> + + </main> + + <nav class="nav-wrapper" aria-label="Page navigation"> + <!-- Mobile navigation buttons --> + <a rel="prev" href="../development/gcc.html" class="mobile-nav-chapters previous" title="Previous chapter" aria-label="Previous chapter" aria-keyshortcuts="Left"> + <i class="fa fa-angle-left"></i> + </a> + + <a rel="next prefetch" href="../development/cmake.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right"> + <i class="fa fa-angle-right"></i> + </a> + + <div style="clear: both"></div> + </nav> + </div> + </div> + + <nav class="nav-wide-wrapper" aria-label="Page navigation"> + <a rel="prev" href="../development/gcc.html" class="nav-chapters previous" title="Previous chapter" aria-label="Previous chapter" aria-keyshortcuts="Left"> + <i class="fa fa-angle-left"></i> + </a> + + <a rel="next prefetch" href="../development/cmake.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right"> + <i class="fa fa-angle-right"></i> + </a> + </nav> + + </div> + + + + + <script> + window.playground_copyable = true; 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